Eutrophication
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Eutrophication is a process where bodies of water become over-enriched with minerals and nutrients which induces excessive growth of algae. This disrupts water quality and the balance of aquatic life. Humans exacerbate eutrophication through activities like sewage discharge, agricultural runoff, and atmospheric deposition which introduce fertilizers and other nutrients into bodies of water. Eutrophication follows stages including growth of plants due to nutrient addition, then algal blooms, followed by lack of oxygen as decomposers use up oxygen and plants die off.
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This document discusses eutrophication, which refers to a water body becoming overly enriched with nutrients, leading to excessive growth of algae and plankton. It can occur naturally over long periods of time but is often accelerated by human activities that increase nutrients in waterways. These activities include use of fertilizers in agriculture and lawns, sewage, and emissions from fossil fuel burning. Eutrophication harms aquatic ecosystems by reducing oxygen levels and harming fish and other wildlife as algae die off. The document outlines the eutrophication process and provides examples of its positive and negative impacts. It concludes with recommendations for controlling eutrophication such as reducing fertilizer use, keeping farms away from waterways, and
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Eutrophication is the process by which excessive nutrients like phosphorus and nitrogen enter bodies of water, promoting algal and plant growth. This can deteriorate water quality and harm ecosystems. Eutrophication can occur naturally as lakes age, but is now widely caused by human activities like agriculture, sewage discharge, and development. These excess nutrients come from point sources like wastewater pipes and non-point sources like agricultural and urban runoff. Eutrophication leads to problems like algal blooms, low water clarity, fish kills, and loss of biodiversity as ecosystems become unbalanced. Managing eutrophication requires controlling nutrient sources and runoff.
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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.
Water pollution
This document provides an overview of water pollution. It discusses how water availability is limited yet water is essential for life. Both surface water and groundwater can become polluted from a variety of point and non-point sources, including industrial and agricultural waste, sewage, and chemical dumping. Various types of pollutants are described. Water pollution has serious health and environmental effects. Preventing pollution and implementing treatment systems can help control this important problem. A case study analyzes pollution in an Indian river.
ENVIRONMENT AND HEALTH.ppt 1.ppt
The document discusses environmental health and sanitation. It defines environment and discusses various physical, biological, and social environmental factors. Poor sanitation and pollution of air, water, and soil are linked to ill health. Maintaining a healthy environment requires a multi-disciplinary approach. The document focuses on water specifically, outlining different water sources, related health issues, and purification methods. It emphasizes the importance of access to safe drinking water and discusses large-scale water treatment involving storage, filtration, and chlorine disinfection.
water pollution
Water pollution - use of water Resources - Ground Water - organic pollution - advantage and Disadvantage - cause and solution.
Impacts of water pollution
It is no secret that a majority of the world’s population consumes unclean water. But how does water get polluted? What happens to people or other living creatures when they consume contaminated water? The power point presentation that follows will allow the teacher to show his or her students the different ways water can get polluted, how much man is responsible for the extent of water pollution, and what the impact of this pollution is on all living things, especially man. The teacher can also use this presentation to generate a discussion in class on possible solutions to this problem. Is it possible to treat contaminated water in some way to make it consumable? Are there ways in which we can prevent or avoid at least certain kinds of water pollution?
AbstractGround water is the biggest source of drinking water ava.docx
Abstract
Ground water is the biggest source of drinking water available to human population around the world and is rapidly being polluted because of industrialization and increasing demands of agriculture around the world. A set of simple experiments were done to find out what kind of changes do some of these contaminants cause in ground water. Samples of tap water and bottled water were also analyzed for safety. Chemicals like oil, vinegar and soap cause turbidity, odor and color change in water samples. Tap water is just as safe to drink as bottled water because the contamination levels are fairly equal. INTRODUCTION Ground water is present below the surface in porous rocks and is susceptible to contamination by natural and especially human related activities. Large amounts of chemicals like soap and detergents, fertilizers and pesticides, pharmaceutical by-products are discharged in to fresh water aquifers every day. These contaminants leach in to the soil and dissolve in ground water. Different contaminants have different rates of solubility and degradation once they reach the underground water table either by simple flow or by the downward movement of rain water. The ground water may become contaminated with both organic and inorganic substances especially heavy metals like Cadmium, Chromium and Nickel, etc. (Christensen et al, 2001). Pharmaceutical wastes can cause cancer in human cells. (Krifa et al. 2013). Many pharmaceutically active chemicals reach groundwater sources almost untreated and cause contamination. (Herber, 2002). Increase in the emissions of carbon dioxide by burning fossil fuels is the single largest cause of environmental degradation resulting not only in global warming but also causing acid rain which alters the pH of ground water. Water is a universal solvent; however, its dissolving properties are very sensitive to changes in temperature and pH. Global economic growth has, unfortunately, resulted in high levels of carbon dioxide emissions.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000
SCI 207 Week 3 Assignment Outline if the Final Lab Report - NEW
ABSTRACT
Ground water is the biggest source of drinking water available to human population around the world and is rapidly being polluted because of industrialization and increasing demands of agriculture around the world. A set of simple experiments were done to find out what kind of changes do some of these contaminants cause in ground water. Samples of tap water and bottled water were also analyzed for safety. Chemicals like oil, vinegar and soap cause turbidity, odor and color change in water samples. Tap water is much safer to drink than bottled water because it contains less contamination than bottles water.
INTRODUCTION
Ground water is present below the surface in porous rocks and is susceptible to contamination by natural and especially human related activities. Large amounts of chemicals like soap and detergents, ferti.
IDENTIFY THE MAJOR SOURCES/ CAUSES OF WASTAGE OF WATER RESOURCE IN OUR HOSTEL
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chemistry presentation
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Green technology-for-bioremediation-of-the-eutrophication-phenomenon-in-aquat...
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AbstractGround water is the biggest source of drinking water ava.docx
AbstractGround water is the biggest source of drinking water ava.docx
IDENTIFY THE MAJOR SOURCES/ CAUSES OF WASTAGE OF WATER RESOURCE IN OUR HOSTEL
IDENTIFY THE MAJOR SOURCES/ CAUSES OF WASTAGE OF WATER RESOURCE IN OUR HOSTEL
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Rhizobium
Rhizobium is a genus of Gram-negative soil bacteria that fix nitrogen. Rhizobium species form an endosymbiotic nitrogen-fixing association with roots of legumes and Parasponia
Processors
A processor (CPU) is the logic circuitry that responds to and processes the basic instructions that drive a computer.
Aeroallergen
This document discusses various aeroallergens that can trigger allergic reactions, including pollen, dust mites, molds, pet dander, smoke, and volatile organic compounds. It describes how different allergens are released into the air and notes common symptoms they can cause like sneezing, runny nose, and itchy eyes. The document also provides examples of specific tree pollens and molds that are common causes of allergies. It concludes with some methods for removing allergen sources or reducing their impact like cleaning regularly, using air filters and essential oils.
Starter Culture
This document discusses starter cultures used in the production of fermented dairy and non-dairy products. It defines starter cultures as microorganisms deliberately added to milk to initiate and carry out desired fermentation. The key microorganisms used include various species of lactic acid bacteria such as Lactobacillus, Lactococcus, Leuconostoc, and Streptococcus. The document discusses the classification, functions, and production of different starter cultures as well as their role in popular fermented foods like dahi, yogurt, and cheese.
Biological treatment of Waste water
Biological treatments rely on bacteria, nematodes, or other small organisms to break down organic wastes using normal cellular processes. Wastewater typically contains a buffet of organic matter, such as garbage, wastes, and partially digested foods. It also may contain pathogenic organisms, heavy metals, and toxins.
Malaria vaccine
A malaria vaccine is a vaccine that is used to prevent malaria. The only approved vaccine as of 2015 is RTS,S, known by the trade name Mosquirix. It requires four injections and has a relatively low efficacy.
Biotechnology for Solid waste Management
Biotechnology in solid waste management is the process of application of science and technology to the living and non-living materials for the treatment and disposal of solid waste and wastewater in controlled conditions without disturbing the ecosystem.
Ozone layer Depletion and its implications
Ozone depletion, gradual thinning of Earth's ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. The thinning is most pronounced in the polar regions, especially over Antarctica.
Biotic interactions
Biotic factors also regulate the size of populations more intensely. Finally, the influence of biotic interactions can occur at two different levels. Interspecific effects are direct interactions between species, and the intraspecific effects represent interactions of individuals within a single species.
Atmosphere
Earth's atmosphere is a thin layer of gases that hover above our planet's surface. The atmosphere provides us with oxygen to breathe, shelters us from solar UV radiation, and warms Earth's surface via the greenhouse effect.
Vitamin
This document provides information on vitamins and minerals, including their functions, sources, and effects of deficiencies. It discusses that vitamins are micronutrients needed in small amounts that are classified as either water-soluble or fat-soluble. Major minerals like calcium and phosphorus and trace minerals like iron and iodine are also outlined. The roles of specific vitamins A, D, E, K, B1-3, B9, C and minerals iron, calcium, phosphorus, sodium, potassium, zinc, and iodine are summarized. Fortification of foods is described as an effective public health strategy to prevent deficiencies.
Metagenomics
Metagenomics is the study of genetic material recovered directly from environmental samples. Metagenomics is a molecular tool used to analyse DNA acquired from environmental samples, in order to study the community of microorganisms present, without the necessity of obtaining pure cultures.
Superbugs
Superbugs are strains of bacteria, viruses, parasites and fungi that are resistant to most of the antibiotics and other medications commonly used to treat the infections they cause. A few examples of superbugs include resistant bacteria that can cause pneumonia, urinary tract infections and skin infections.
SINGLE CELL PROTEINS
myjunior09.wordpress.com
CONTENTS-
Introduction
• History
• SCP production in India
• Raw materials
• SCP production
• Advantages and Disadvantages
• Applications
• Conclusion
• References
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Eutrophication
- 2. When lakes, streams and estuaries are over fertilized, excessive production of aquatic organic matter can become a water quality problem and as a result the eutrophication process can be enhanced! JUNIOR
- 3. However, humans in their everyday activities can exacerbate the process: Point sources (can locate the cause) Sewage treatment plant discharges Storm sewer discharges Industrial discharges Non-point sources (can’t locate the cause, it’s everywhere) Atmospheric deposition Agricultural runoff (fertilizer, soil erosion) Septic systems JUNIOR
- 4. Eutrophication: a process by which a body of water progresses from its origin to its extinction. This process happens in stages. BEFORE EUTROPHICATION AFTER EUTROPHICATION JUNIOR
- 5. LACK OF OXYGEN GROWTH OF BACTERIA DEATH OF PLANTS SUFFOCATION GROWTH OF PLANTS ADDITION OF NITRATES Eutrophication process in 6 stages JUNIOR
- 6. fe rtilis e rs s e w a g e (liq u id d o m e s tic a n d in d u s tria l w a s te ) m in e ra ls e s p . n itra te s m in e ra ls e s p . p h o s p h a te s e u tro p h ic a tio n a lg a l b lo o m c o m p e titio n fo r lig h t c o n s u m e rs c a n ' t c o n s u m e fa s t e n o u g h d e a d p la n ts d e a d a lg a e Theprocessof Eutrophication JUNIOR
- 7. c o m p e titio n fo r lig h t c o n s u m e rs c a n ' t c o n s u m e fa s t e n o u g h d e a d p la n ts d e a d a lg a e d e tritu s m o re d e c o m p o s e rs u s e u p o x y g e n b y a e ro b ic re s p ira tio n rial The process of Eutrophication cont. JUNIOR
- 8. Biochemical Oxygen Demand (BOD). This measures the rate of oxygen consumption by a sample of water, and therefore gives a good indication of eutrophication. A high BOD means lots of organic material and aerobic microbes, i.e. eutrophication JUNIOR
- 9. JUNIOR
- 10. Before increases in nutrients: JUNIOR
- 11. Acceleration of eutrophication : JUNIOR
- 12. Results of eutrophication : JUNIOR
- 13. JUNIOR
- 14. JUNIOR
- 15. Photo 1: Algal bloom in a lake. Photo 1: Algal bloom in a lake.JUNIOR
- 16. Photo 2: Overgrowth of floating aquatic plants. JUNIOR
- 17. Photo 3: Lake Biwa, the largest lake in Japan during summer time showing overgrowth of aquatic plants.JUNIOR
- 18. Photo 4: Fish mortality due to lack of oxygen in an Indonesian lake. JUNIOR
- 19. Put in order the stages of Eutrophication! LACK OF OXYGEN GROWTH OF BACTERIA DEATH OF PLANTS SUFFOCATIONGROWTH OF PLANTS ADDITION OF NITRATES JUNIOR