Water pollution
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The document discusses water pollution, identifying several types of pollutants including organic, inorganic, microbiological and radioactive. It notes that water pollution can come from both point sources like domestic and industrial waste as well as non-point sources like surface runoff from farms and roads. Various human activities are identified as contributing to water pollution, such as sewage, waste, industrial effluents, dumping, oil spills and changes to climate and atmosphere.
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Water
This document discusses various sources of water pollution. It describes non-point sources of pollution which occur when rainfall and snowmelt carry contaminants from various landscape sources into waterways. Non-point sources include excess fertilizers and acid rain. Point sources emit harmful substances directly into bodies of water, mainly from sewage and industrial wastes. The document also outlines different stages of sewage treatment and some health issues caused by water pollution like eutrophication, diarrhea, and mercury poisoning. It emphasizes the importance of water treatment and our need for energy to purify water supplies.
Waste water treatment and Disposal
Waste water treatment removes contaminants from household and industrial wastewater through a multi-step municipal treatment process including primary, secondary, and advanced treatments before final disposal. Inadequate treatment increases health risks and endangers ecosystems by spreading disease, killing aquatic life, and accumulating toxins, while proper treatment reduces risks, generates electricity, and supports agriculture. Common disposal methods include natural processes like dilution and land treatment, or artificial ones like surface water discharge or reuse.
Water Pollution By Industries
This document discusses water pollution caused by industrial waste. It defines industrial water pollution and notes that industrial waste can be solid, liquid, or gaseous. Hazardous industrial waste includes chemicals like cleaning fluids and paints, while non-hazardous waste does not meet EPA definitions of hazardous. Improperly managed industrial waste can harm human and environmental health. The effects of industrial pollution include contaminated water unsuitable for drinking or agriculture, reduced aquatic life, and hazards to human health. The document recommends techniques for industries to reduce and recycle waste to minimize pollution.
Water pollution
Water pollution occurs when harmful substances contaminate bodies of water, including lakes, rivers, oceans, and groundwater. It negatively impacts both the environment and human health. There are two main types of water pollution: point source pollution which comes from identifiable sources like pipes or drains, and non-point source pollution which has diffuse origins like agricultural runoff. Water pollution can be caused by improper disposal of waste, excessive use of fertilizers and pesticides, and littering near water sources.
Chemistry Summarizing Points
This document discusses various causes of water pollution like sewage dumping, industrial waste, and eutrophication. It then lists steps individuals can take to control water pollution in their homes by using non-toxic cleaners and properly disposing of chemicals. The document also recommends preventing polluted runoff through planting bushes and trees to slow erosion. Finally, it provides tips to conserve water such as turning off taps while brushing teeth and shortening shower time.
Water pollution, causes, effects & Treatments
The document discusses water pollution, its causes, effects, and treatment methods. Water pollution is defined as the presence of toxic chemicals or biological agents in water that exceed natural levels and threaten human or environmental health. It can be caused by industrial waste, sewage, marine dumping, fertilizers and pesticides, and fossil fuel burning. Effects include death of aquatic life, disrupted ecosystems, and disease. Treatment methods include primary, secondary, and advanced levels. Primary treatment uses physical processes like sedimentation to remove solids. Secondary treatment uses bacteria and algae in biological processes like trickling filters. Advanced treatment provides further clarification and safe disposal of sludge.
Groung water pollution
Groundwater can become contaminated through human activities like industrial chemical spills, improper waste disposal, and excessive use of fertilizers and pesticides. Once contaminants enter an aquifer, they can pollute groundwater and cause health issues. Pumping wells can exacerbate the problem by changing groundwater flow directions and spreading pollutants. Various groups need to take actions to prevent contamination, including proper management of industrial waste, reducing agricultural chemical use, and proper household chemical disposal. Remediation methods aim to remove pollution from groundwater, either by extracting and treating water above ground or treating it within the aquifer. Conservation of groundwater resources requires effort from all.
Water pollution
Presentation for project work!
Presentation credits:
Mr. Shivam Saha
Dr. Tathagata Deb
.
Contents:
Introduction
Types of Water Pollution
Sewage
Disease-causing agents
Sediment pollution
Inorganic plant and algal nutrients
Organic compounds
Inorganic chemicals
Thermal pollution
Water Quality Today
Improving Water Quality
Laws Controlling Water Pollution
Conclusion
Recommended
Water
This document discusses various sources of water pollution. It describes non-point sources of pollution which occur when rainfall and snowmelt carry contaminants from various landscape sources into waterways. Non-point sources include excess fertilizers and acid rain. Point sources emit harmful substances directly into bodies of water, mainly from sewage and industrial wastes. The document also outlines different stages of sewage treatment and some health issues caused by water pollution like eutrophication, diarrhea, and mercury poisoning. It emphasizes the importance of water treatment and our need for energy to purify water supplies.
Waste water treatment and Disposal
Waste water treatment removes contaminants from household and industrial wastewater through a multi-step municipal treatment process including primary, secondary, and advanced treatments before final disposal. Inadequate treatment increases health risks and endangers ecosystems by spreading disease, killing aquatic life, and accumulating toxins, while proper treatment reduces risks, generates electricity, and supports agriculture. Common disposal methods include natural processes like dilution and land treatment, or artificial ones like surface water discharge or reuse.
Water Pollution By Industries
This document discusses water pollution caused by industrial waste. It defines industrial water pollution and notes that industrial waste can be solid, liquid, or gaseous. Hazardous industrial waste includes chemicals like cleaning fluids and paints, while non-hazardous waste does not meet EPA definitions of hazardous. Improperly managed industrial waste can harm human and environmental health. The effects of industrial pollution include contaminated water unsuitable for drinking or agriculture, reduced aquatic life, and hazards to human health. The document recommends techniques for industries to reduce and recycle waste to minimize pollution.
Water pollution
Water pollution occurs when harmful substances contaminate bodies of water, including lakes, rivers, oceans, and groundwater. It negatively impacts both the environment and human health. There are two main types of water pollution: point source pollution which comes from identifiable sources like pipes or drains, and non-point source pollution which has diffuse origins like agricultural runoff. Water pollution can be caused by improper disposal of waste, excessive use of fertilizers and pesticides, and littering near water sources.
Chemistry Summarizing Points
This document discusses various causes of water pollution like sewage dumping, industrial waste, and eutrophication. It then lists steps individuals can take to control water pollution in their homes by using non-toxic cleaners and properly disposing of chemicals. The document also recommends preventing polluted runoff through planting bushes and trees to slow erosion. Finally, it provides tips to conserve water such as turning off taps while brushing teeth and shortening shower time.
Water pollution, causes, effects & Treatments
The document discusses water pollution, its causes, effects, and treatment methods. Water pollution is defined as the presence of toxic chemicals or biological agents in water that exceed natural levels and threaten human or environmental health. It can be caused by industrial waste, sewage, marine dumping, fertilizers and pesticides, and fossil fuel burning. Effects include death of aquatic life, disrupted ecosystems, and disease. Treatment methods include primary, secondary, and advanced levels. Primary treatment uses physical processes like sedimentation to remove solids. Secondary treatment uses bacteria and algae in biological processes like trickling filters. Advanced treatment provides further clarification and safe disposal of sludge.
Groung water pollution
Groundwater can become contaminated through human activities like industrial chemical spills, improper waste disposal, and excessive use of fertilizers and pesticides. Once contaminants enter an aquifer, they can pollute groundwater and cause health issues. Pumping wells can exacerbate the problem by changing groundwater flow directions and spreading pollutants. Various groups need to take actions to prevent contamination, including proper management of industrial waste, reducing agricultural chemical use, and proper household chemical disposal. Remediation methods aim to remove pollution from groundwater, either by extracting and treating water above ground or treating it within the aquifer. Conservation of groundwater resources requires effort from all.
Water pollution
Presentation for project work!
Presentation credits:
Mr. Shivam Saha
Dr. Tathagata Deb
.
Contents:
Introduction
Types of Water Pollution
Sewage
Disease-causing agents
Sediment pollution
Inorganic plant and algal nutrients
Organic compounds
Inorganic chemicals
Thermal pollution
Water Quality Today
Improving Water Quality
Laws Controlling Water Pollution
Conclusion
Water waste by group 5
Polish people waste a significant amount of water through everyday activities like not turning off taps while brushing teeth and throwing out food, which takes around 1000 liters of water to produce. Many also use potable water for non-essential activities like watering lawns and washing cars. Tenerife's tap water is seawater that has been desalinated and treated, so it is not healthy to drink long-term. Most of the sewage from Tenerife and the Canary Islands is dumped directly into the sea without treatment, totaling over 57 million liters per year from Tenerife alone.
Pollution
Pollution is harmful substances in the air, water, or soil. Water pollution can be either man-made, such as from fertilizers, factory waste dumping, oil leaks, or trash dumping in water, or natural, such as from rain washing pollutants from the air and soil into lakes and ponds. The document defines pollution and discusses the sources and types of water pollution.
Water pollution
This document discusses water pollution, including its definition, causes, effects, and measures to control it. Water pollution is defined as the presence of contaminants in water that can harm organisms or impair water's usefulness. The main causes of water pollution are domestic and industrial waste, sewage, solid waste, acid rain, oil industry waste, and excess aquatic plants. Effects of water pollution include death of aquatic organisms, rivers becoming dumping grounds, and shortage of drinking water. Measures to control water pollution include stabilizing ecosystems, sewage treatment plants, ion exchange methods, and reverse osmosis.
Water pollution
The document discusses water pollution from both point and nonpoint sources. It defines point source pollution as coming from specific sources like pipes from factories, while nonpoint source pollution comes from diffuse sources like stormwater runoff and cannot be traced to a single source. Common nonpoint pollutants include sediment, nutrients, pathogens, toxics, and debris, which are picked up and transported to water bodies during rain events from various land uses such as agriculture, residential areas, and impervious surfaces like roads. These pollutants can negatively impact water quality, aquatic life, and recreational activities.
Water pollution
This ppt is about water pollution, causes, sources, effects, control, water quality standards, waste water treatments and its types, oxidation ponds and ganga action plan
Water pollution
This document discusses various aspects of water pollution including its definition, sources, parameters used to measure it, and methods for controlling it. Water pollution is defined as contamination that makes water harmful to living organisms. It can originate from point sources like pipes or non-point sources like agricultural runoff. Key parameters for assessing water quality include physical factors like turbidity, chemical measurements like pH levels, and biological indicators like E. coli. The document also covers topics like eutrophication, biochemical oxygen demand, and steps individuals can take to reduce pollution like proper waste disposal and water conservation.
Water pollution
Water pollution is a major global problem that causes over 14,000 deaths per day according to some estimates. It is primarily caused by human activities through both point sources like factories and sewage systems, and nonpoint sources that can't be traced to a single origin. Developing countries face acute water pollution that deprives many citizens of access to safe drinking water and claims hundreds of lives daily, while developed countries continue working to address persistent pollution problems through legislation, regulation of industry, and other solutions.
Lecture chapter 22 - water pollution upload by raj kumar
This document provides an overview of various types of water pollution including sewage, disease-causing agents, sediment pollution, inorganic and organic nutrients and compounds, thermal pollution, and more. It discusses how these types of pollution affect water quality and ecosystems. The document also outlines common methods for treating municipal water and sewage, as well as US laws enacted to control water pollution like the Clean Water Act.
Envirment pollution
This document discusses types of environmental pollution, focusing on water pollution. It notes that water pollution occurs when pollutants are directly or indirectly discharged into water bodies without treatment, and lists industrial waste, sewage, and accidental oil leakage as causes of water pollution. The effects mentioned include impacts on animals and human health. Proposed solutions include sewage treatment and messages to keep plants alive.
Water pollution i
This document discusses various topics related to water pollution including sources of water pollution, types of water pollution that can occur in different water bodies, causes of water pollution both natural and man-made, and effects of water pollution. It provides details on how water pollution can contaminate groundwater, surface water, lakes, rivers and oceans. Some key effects mentioned are water pollution leading to epidemics and diseases as well as the collapse of aquatic systems. The document concludes with discussing water management strategies like rainwater harvesting, reuse of waste, and industrial water management techniques.
Water pollution
Water pollution is the introduction of chemical, physical or biological material into fresh or oceans waters that degrade the quality of water and affects the organism living in it. This process ranges from simple addition of dissolved or suspended solids that discharge the most insidious and persistent toxic pollutants (such as non-biodegradable, bio-accumulated, chemical compounds, pesticides and heavy metals).
Water pollution
Water pollution is a major global crisis as clean water is essential for human survival and health. Many sources pollute water, including sewage, fertilizers, oil spills, chemical dumping, and untreated industrial waste. This pollution contaminates both surface water and groundwater sources. Water pollution has serious negative effects like increased waterborne diseases and harm to aquatic plants and animals due to toxic chemicals and lack of oxygen. Immediate action is needed to reduce pollution and protect this vital resource.
Water pollution
The document discusses various types and causes of water pollution. Water pollution occurs when harmful substances contaminate bodies of water due to human activities. Different types of water pollution include microbiological, chemical, oxygen-depleting substances, nutrients, and oil pollution. Major causes are domestic and agricultural wastewater, dumping of litter in oceans, and nuclear waste from industrial processes. Water pollution leads to toxic water and diseases in humans and death of marine animals. The document recommends ways to prevent water pollution such as proper fertilizer use, participating in cleanups, spreading awareness, and planting more trees.
Water quality & sources
This document summarizes water quality and sources of raw water. It discusses that water quality is analyzed physically, chemically, and biologically. The physical characteristics discussed are turbidity, color, taste and odor, and temperature. Turbidity measures the clarity of water and is impacted by suspended particles. Color in water can indicate organic substances or algae. Taste and odor come from minerals, metals, salts, or biological reactions. Temperature affects chemical reactions in water systems and the growth of microorganisms. Overall water quality impacts the health, aesthetic, and usable properties of water.
Pollution studies on ground water contamination water
This document summarizes a study on groundwater contamination and water quality in Abeokuta, Ogun State, Nigeria. It provides background on groundwater, noting that it is replenished from precipitation and often used for drinking, industry, and agriculture. The study area of Abeokuta lies within basement complex rocks and has problems locating productive aquifers. Groundwater potential depends on weathering and fracturing of the crystalline bedrock. Many people depend on hand-dug wells and groundwater, but supply is problematic especially in the dry season, with low yields and water quality issues from activities like urbanization.
Water pollution
Water pollution occurs when harmful substances are directly or indirectly introduced into water bodies without treatment. It is caused by sources such as agricultural, industrial and residential waste. When water is contaminated, removing pollutants can be difficult, expensive and sometimes impossible. Water pollution severely affects ecosystems by damaging wildlife habitats and food chains, reducing biodiversity. It also poses serious risks to human health through contaminated drinking water and seafood, which can lead to diseases. Preventing water pollution requires reducing the use of chemicals and properly disposing of wastes.
Wastewater story part 1
Wastewater, or sewage, is dirty water from homes and businesses that contains organic waste, pathogens, and other pollutants. It is produced from sinks, showers, toilets, laundries, and other drains. Wastewater must be treated through a multi-stage process before it is safely released back into the environment. This involves removing solids, organic matter, nutrients, and bacteria or other disease-causing pathogens. Proper wastewater treatment is important for public health and environmental protection.
water and water pollution
Water pollution comes from a variety of sources including agriculture, industry, mining, urban runoff, and sewage. It harms living organisms and humans. Surface water pollution can be reduced through regulations and technologies that treat industrial and municipal waste. Groundwater pollution is difficult to address due to slow flow rates and few bacteria to break down pollutants. Solutions aim to prevent pollution at its sources and purify drinking water supplies.
Wastage of water by group 4
Poles and tourists in Tenerife waste water through inefficient behaviors like leaving taps running and taking long showers. Common causes of water waste include leaky pipes and careless use in activities like gardening. With smaller water resources than places like Egypt, even small amounts of waste from a single leaky faucet can amount to thousands of liters lost annually in Poland. Hotels in Tenerife struggle with excessive water use by tourists who are unaware of the island's limited water supplies.
Water for kids
Water is made of hydrogen and oxygen molecules. It has no color, taste or smell. Water exists in different forms for different uses like drinking, bathing, cooking and gardening. Water cycles through evaporation and precipitation. Only 3% of water on Earth is fresh water. We should conserve water by turning off taps and not polluting water sources. Water needs purification before use to remove impurities and kill germs. The purification process involves sedimentation, coagulation, filtration, aeration and disinfection to make water safe for drinking.
Water pollution
This document discusses various types and sources of water pollution. It notes that pollution can come from both point sources like factories and wastewater treatment plants, as well as nonpoint sources like urban and agricultural runoff. Various pollutants are described like bacteria, nutrients, chemicals, and sediment. Examples are given of pollution in streams, lakes, and groundwater from a variety of human and natural causes. Solutions discussed include drainage management, agriculture practices, and wastewater treatment laws. The impacts of pollution on public health and aquatic ecosystems are also summarized.
Water pollution
Rising demand vs. diminishing supply
- Water is essential to life but both the supply and quality of freshwater resources are under threat. Pollution from sources like industry, agriculture, and everyday human activities is contaminating water supplies while population growth and climate change are reducing available water. If current practices are not changed, severe water scarcity and conflict over water could increase globally in the coming century. Preserving this critical resource requires improved management, conservation efforts, wastewater treatment, and more sustainable consumption.
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Water waste by group 5
Polish people waste a significant amount of water through everyday activities like not turning off taps while brushing teeth and throwing out food, which takes around 1000 liters of water to produce. Many also use potable water for non-essential activities like watering lawns and washing cars. Tenerife's tap water is seawater that has been desalinated and treated, so it is not healthy to drink long-term. Most of the sewage from Tenerife and the Canary Islands is dumped directly into the sea without treatment, totaling over 57 million liters per year from Tenerife alone.
Pollution
Pollution is harmful substances in the air, water, or soil. Water pollution can be either man-made, such as from fertilizers, factory waste dumping, oil leaks, or trash dumping in water, or natural, such as from rain washing pollutants from the air and soil into lakes and ponds. The document defines pollution and discusses the sources and types of water pollution.
Water pollution
This document discusses water pollution, including its definition, causes, effects, and measures to control it. Water pollution is defined as the presence of contaminants in water that can harm organisms or impair water's usefulness. The main causes of water pollution are domestic and industrial waste, sewage, solid waste, acid rain, oil industry waste, and excess aquatic plants. Effects of water pollution include death of aquatic organisms, rivers becoming dumping grounds, and shortage of drinking water. Measures to control water pollution include stabilizing ecosystems, sewage treatment plants, ion exchange methods, and reverse osmosis.
Water pollution
The document discusses water pollution from both point and nonpoint sources. It defines point source pollution as coming from specific sources like pipes from factories, while nonpoint source pollution comes from diffuse sources like stormwater runoff and cannot be traced to a single source. Common nonpoint pollutants include sediment, nutrients, pathogens, toxics, and debris, which are picked up and transported to water bodies during rain events from various land uses such as agriculture, residential areas, and impervious surfaces like roads. These pollutants can negatively impact water quality, aquatic life, and recreational activities.
Water pollution
This ppt is about water pollution, causes, sources, effects, control, water quality standards, waste water treatments and its types, oxidation ponds and ganga action plan
Water pollution
This document discusses various aspects of water pollution including its definition, sources, parameters used to measure it, and methods for controlling it. Water pollution is defined as contamination that makes water harmful to living organisms. It can originate from point sources like pipes or non-point sources like agricultural runoff. Key parameters for assessing water quality include physical factors like turbidity, chemical measurements like pH levels, and biological indicators like E. coli. The document also covers topics like eutrophication, biochemical oxygen demand, and steps individuals can take to reduce pollution like proper waste disposal and water conservation.
Water pollution
Water pollution is a major global problem that causes over 14,000 deaths per day according to some estimates. It is primarily caused by human activities through both point sources like factories and sewage systems, and nonpoint sources that can't be traced to a single origin. Developing countries face acute water pollution that deprives many citizens of access to safe drinking water and claims hundreds of lives daily, while developed countries continue working to address persistent pollution problems through legislation, regulation of industry, and other solutions.
Lecture chapter 22 - water pollution upload by raj kumar
This document provides an overview of various types of water pollution including sewage, disease-causing agents, sediment pollution, inorganic and organic nutrients and compounds, thermal pollution, and more. It discusses how these types of pollution affect water quality and ecosystems. The document also outlines common methods for treating municipal water and sewage, as well as US laws enacted to control water pollution like the Clean Water Act.
Envirment pollution
This document discusses types of environmental pollution, focusing on water pollution. It notes that water pollution occurs when pollutants are directly or indirectly discharged into water bodies without treatment, and lists industrial waste, sewage, and accidental oil leakage as causes of water pollution. The effects mentioned include impacts on animals and human health. Proposed solutions include sewage treatment and messages to keep plants alive.
Water pollution i
This document discusses various topics related to water pollution including sources of water pollution, types of water pollution that can occur in different water bodies, causes of water pollution both natural and man-made, and effects of water pollution. It provides details on how water pollution can contaminate groundwater, surface water, lakes, rivers and oceans. Some key effects mentioned are water pollution leading to epidemics and diseases as well as the collapse of aquatic systems. The document concludes with discussing water management strategies like rainwater harvesting, reuse of waste, and industrial water management techniques.
Water pollution
Water pollution is the introduction of chemical, physical or biological material into fresh or oceans waters that degrade the quality of water and affects the organism living in it. This process ranges from simple addition of dissolved or suspended solids that discharge the most insidious and persistent toxic pollutants (such as non-biodegradable, bio-accumulated, chemical compounds, pesticides and heavy metals).
Water pollution
Water pollution is a major global crisis as clean water is essential for human survival and health. Many sources pollute water, including sewage, fertilizers, oil spills, chemical dumping, and untreated industrial waste. This pollution contaminates both surface water and groundwater sources. Water pollution has serious negative effects like increased waterborne diseases and harm to aquatic plants and animals due to toxic chemicals and lack of oxygen. Immediate action is needed to reduce pollution and protect this vital resource.
Water pollution
The document discusses various types and causes of water pollution. Water pollution occurs when harmful substances contaminate bodies of water due to human activities. Different types of water pollution include microbiological, chemical, oxygen-depleting substances, nutrients, and oil pollution. Major causes are domestic and agricultural wastewater, dumping of litter in oceans, and nuclear waste from industrial processes. Water pollution leads to toxic water and diseases in humans and death of marine animals. The document recommends ways to prevent water pollution such as proper fertilizer use, participating in cleanups, spreading awareness, and planting more trees.
Water quality & sources
This document summarizes water quality and sources of raw water. It discusses that water quality is analyzed physically, chemically, and biologically. The physical characteristics discussed are turbidity, color, taste and odor, and temperature. Turbidity measures the clarity of water and is impacted by suspended particles. Color in water can indicate organic substances or algae. Taste and odor come from minerals, metals, salts, or biological reactions. Temperature affects chemical reactions in water systems and the growth of microorganisms. Overall water quality impacts the health, aesthetic, and usable properties of water.
Pollution studies on ground water contamination water
This document summarizes a study on groundwater contamination and water quality in Abeokuta, Ogun State, Nigeria. It provides background on groundwater, noting that it is replenished from precipitation and often used for drinking, industry, and agriculture. The study area of Abeokuta lies within basement complex rocks and has problems locating productive aquifers. Groundwater potential depends on weathering and fracturing of the crystalline bedrock. Many people depend on hand-dug wells and groundwater, but supply is problematic especially in the dry season, with low yields and water quality issues from activities like urbanization.
Water pollution
Water pollution occurs when harmful substances are directly or indirectly introduced into water bodies without treatment. It is caused by sources such as agricultural, industrial and residential waste. When water is contaminated, removing pollutants can be difficult, expensive and sometimes impossible. Water pollution severely affects ecosystems by damaging wildlife habitats and food chains, reducing biodiversity. It also poses serious risks to human health through contaminated drinking water and seafood, which can lead to diseases. Preventing water pollution requires reducing the use of chemicals and properly disposing of wastes.
Wastewater story part 1
Wastewater, or sewage, is dirty water from homes and businesses that contains organic waste, pathogens, and other pollutants. It is produced from sinks, showers, toilets, laundries, and other drains. Wastewater must be treated through a multi-stage process before it is safely released back into the environment. This involves removing solids, organic matter, nutrients, and bacteria or other disease-causing pathogens. Proper wastewater treatment is important for public health and environmental protection.
water and water pollution
Water pollution comes from a variety of sources including agriculture, industry, mining, urban runoff, and sewage. It harms living organisms and humans. Surface water pollution can be reduced through regulations and technologies that treat industrial and municipal waste. Groundwater pollution is difficult to address due to slow flow rates and few bacteria to break down pollutants. Solutions aim to prevent pollution at its sources and purify drinking water supplies.
Wastage of water by group 4
Poles and tourists in Tenerife waste water through inefficient behaviors like leaving taps running and taking long showers. Common causes of water waste include leaky pipes and careless use in activities like gardening. With smaller water resources than places like Egypt, even small amounts of waste from a single leaky faucet can amount to thousands of liters lost annually in Poland. Hotels in Tenerife struggle with excessive water use by tourists who are unaware of the island's limited water supplies.
Water for kids
Water is made of hydrogen and oxygen molecules. It has no color, taste or smell. Water exists in different forms for different uses like drinking, bathing, cooking and gardening. Water cycles through evaporation and precipitation. Only 3% of water on Earth is fresh water. We should conserve water by turning off taps and not polluting water sources. Water needs purification before use to remove impurities and kill germs. The purification process involves sedimentation, coagulation, filtration, aeration and disinfection to make water safe for drinking.
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Lecture chapter 22 - water pollution upload by raj kumar
Lecture chapter 22 - water pollution upload by raj kumar
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Water pollution
This document discusses various types and sources of water pollution. It notes that pollution can come from both point sources like factories and wastewater treatment plants, as well as nonpoint sources like urban and agricultural runoff. Various pollutants are described like bacteria, nutrients, chemicals, and sediment. Examples are given of pollution in streams, lakes, and groundwater from a variety of human and natural causes. Solutions discussed include drainage management, agriculture practices, and wastewater treatment laws. The impacts of pollution on public health and aquatic ecosystems are also summarized.
Water pollution
Rising demand vs. diminishing supply
- Water is essential to life but both the supply and quality of freshwater resources are under threat. Pollution from sources like industry, agriculture, and everyday human activities is contaminating water supplies while population growth and climate change are reducing available water. If current practices are not changed, severe water scarcity and conflict over water could increase globally in the coming century. Preserving this critical resource requires improved management, conservation efforts, wastewater treatment, and more sustainable consumption.
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Water polution
This document discusses water pollution and its causes. It describes different sources of water pollution including non-point sources like agriculture, domestic sources from wastewater, industrial sources from factory effluent, and rural/agricultural sources from animal farming. It also discusses major categories of water pollutants and ways to prevent pollution in streams, lakes, coastal waters, oceans, and groundwater. Prevention methods include reducing non-point pollution from agriculture, improving sewage treatment systems, and properly disposing of chemicals.
water_poll.pptx
This document discusses various types and sources of water pollution including infectious agents, oxygen-demanding waste, inorganic chemicals, radioactive materials, plant nutrients, organic chemicals, and eroded sediment. It describes how these pollutants affect water quality and aquatic ecosystems. It also outlines approaches to prevent and reduce various sources of water pollution from agricultural runoff, industrial waste, sewage, and contaminated groundwater.
Water Pollution.ppt
This document discusses various types and sources of water pollution including infectious agents, oxygen-demanding waste, inorganic chemicals, radioactive materials, plant nutrients, organic chemicals, eroded sediment, and heat from thermal pollution that enter water sources from sources like sewage, industrial effluent, agricultural and storm runoff. It also covers different types of water bodies that can become polluted like streams, lakes, rivers, coastal waters, oceans, and groundwater. Prevention methods and laws aimed at reducing point and nonpoint source pollution are discussed.
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This document discusses various types and sources of water pollution including infectious agents, oxygen-demanding waste, inorganic chemicals, radioactive materials, plant nutrients, organic chemicals, eroded sediment, and heat from thermal pollution that enter water sources from sources like sewage, industrial effluent, agricultural and storm runoff. It also covers different types of water bodies that can become polluted like streams, lakes, rivers, coastal waters, oceans, and groundwater. Prevention methods and laws aimed at reducing point and nonpoint source pollution are discussed.
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3:国家专业人才认证中心颁发入库证书
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5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
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一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
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◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
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◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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Water pollution
- 1. Water :- a scarce natural resource sources of water pollution
- 2. Water:-an important gift of nature!!! 2
- 3. 3
- 4. 4
- 5. Organic Pollutants Inorganic Pollutants Microbiological Pollutants Radioactive Pollutants 5
- 6. Water pollution NON - POINT SOURCE : A widely spread source of pollution that can’t be tied to a specific point of origin. E.g., run off from farms or roads. 6
- 8. 8
- 9. o Domestic wastes o Agricultural discharges o Soluble effluents o Mine spills o Earthen septic tanks o Refuse dumps o Transport accidents o Industrial effluents o Run-off from urban areas o Waste water treatment lagoons o Seepage pits o Barnyard manures 9
- 10. 10
- 11. Sewage &waste Surface run-off & dissolved toxic chemicals Radioactive pollutants Industrial effluents Infectious agents Organic chemical exotics Eutrophication. 11
- 12. 12
- 13. • Discharge of organic chemicals • Industrial toxic effluents • Waste sludges • Eutrophication • Dumping of waste • Drainage contamination. 13
- 14. 14
- 15. • Sewage • Waste water • Dumping • Industrial waste • Oil pollution • Acid rain • Global warming • Eutrophication. 15
- 16. 16
- 17. • Urban sewage • Industrial waste • Inland mining • Land run-off • Oil pollution • Deep sea mining • Climate change &atmospheric pollution • Eutrophication. 17
- 18. 18
- 19. 19
- 20. 20
- 21. REFERENCES Text Book Of Biotechnology By U.Satyanarayana. Text Book Of Environmental Chemistry By H.Kaur. 21
- 22. THANK YOU… 22