Water pollution is the contamination of water bodies by harmful substances. The document discusses various sources and causes of water pollution including point sources like pipes discharging sewage, and non-point sources like runoff from agricultural lands. It also describes common indicators of water pollution and different types of pollutants like industrial waste, agricultural chemicals, and domestic sewage. The document then discusses various water treatment methods including primary, secondary, and tertiary treatments. It provides case studies on pollution in the Ganges River in India and Minamata disease caused by mercury poisoning in Japan.
water pollution control and measurmentRekha Kumari
Today we all are facing the biggest problem that is scarcity of drinking water as the level of water is continually decreasing.
In many countries people die because of contaminated water as they do not have any water resources that contain pure water.
The first question comes in mind when we talk about water management is how can we manage water. For this we need some well-planned strategies like if we know the places where heavy rainfall occur, then we can put extra efforts there in order to save water for future use.
water pollution control and measurmentRekha Kumari
Today we all are facing the biggest problem that is scarcity of drinking water as the level of water is continually decreasing.
In many countries people die because of contaminated water as they do not have any water resources that contain pure water.
The first question comes in mind when we talk about water management is how can we manage water. For this we need some well-planned strategies like if we know the places where heavy rainfall occur, then we can put extra efforts there in order to save water for future use.
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We can work together to keep the environment clean so the plants, animals and people who depend on it remain healthy :) Working together, we can make pollution less of a problem and make our world a better place :D :)
Definition, Composition of atmospheric air, Classification and sources of air
pollutants. Effects of air pollution on human, plant and material, Air pollution control methods, equipment and safety.
This ppt contains the information about environmental noise pollution. ppt contains information related to noise pollution, sources of noise pollution, their types, different noise levels, effects of noise pollution on animals as well as on humans and also contains the tips for prevention of noise pollution.
Air pollution is the introduction of particulates, biological molecules, or other harmful materials into Earth's atmosphere, causing disease, death to humans, loss of breath, damage to other living organisms such as food crops, or the natural or built environment. Air pollution may come from anthropogenic or natural sources.
Air pollution: its causes,effects and pollutantsMaliha Eesha
This presentation gives the complete detail of air, air pollution, air pollutants and their types, each pollutant in detail and its causes and effects, acid rain, methods of prevention,smog,acidification,indoor pollution and so on. It is a complete package and I hope it'll be helpful in school! :)
I’m professional presentation maker . These presentations are for sale for 20$ each, if required you can contact me on my gmail id bestpptmaker@gmail.com and you can also suggest me topics for your required presentations
We can work together to keep the environment clean so the plants, animals and people who depend on it remain healthy :) Working together, we can make pollution less of a problem and make our world a better place :D :)
Definition, Composition of atmospheric air, Classification and sources of air
pollutants. Effects of air pollution on human, plant and material, Air pollution control methods, equipment and safety.
This ppt contains the information about environmental noise pollution. ppt contains information related to noise pollution, sources of noise pollution, their types, different noise levels, effects of noise pollution on animals as well as on humans and also contains the tips for prevention of noise pollution.
Air pollution is the introduction of particulates, biological molecules, or other harmful materials into Earth's atmosphere, causing disease, death to humans, loss of breath, damage to other living organisms such as food crops, or the natural or built environment. Air pollution may come from anthropogenic or natural sources.
Air pollution: its causes,effects and pollutantsMaliha Eesha
This presentation gives the complete detail of air, air pollution, air pollutants and their types, each pollutant in detail and its causes and effects, acid rain, methods of prevention,smog,acidification,indoor pollution and so on. It is a complete package and I hope it'll be helpful in school! :)
Primary settling tanks are typically used to separate solids from wastewater, but they are large, costly to maintain and of limited efficiency. The Hydro MicroScreen™ provides a low-energy, small-footprint alternative to conventional primary wastewater treatment technologies. This presentation compares and contrasts the two approaches.
Deals with zone settling and hindered settling, secondary clarfiiers and design of secondary sedimentation tanks by limiting solids flux method and by Thalmadge and Fitch method.
A report for my Environmental Management for Food Industries
This focused on the first stage in wastewater treatment
Foe the video slide:
https://www.youtube.com/watch?v=GV-DoisLwm0
Water treatment is the Process of removal of contaminants from untreated water to produce drinking water that is pure enough for the most critical of its intended uses, usually for human consumption. Substances that are removed during the process of drinking water treatment include suspended solids, bacteria, algae, viruses, fungi, minerals such as iron, manganese and sulfur, and other chemical pollutants such as fertilizers.Preliminary treatment of wastewater generally includes those processes that remove debris and coarse biodegradable material from the waste stream and/or stabilize the wastewater by equalization or chemical addition. Primary treatment generally refers to a sedimentation process ahead of the main system or secondary treatment.
In domestic wastewater treatment, preliminary and primary processes will remove approximately 25 percent of the organic load and virtually all of the nonorganic solids. In industrial waste treatment, preliminary or primary treatment may include flow equalization, pH adjustment or chemical addition that is ex-tremely important to the overall treatment process.
Waste water treatment can involve physical, chemical or biological processes or combinations of these processes depending on the required outflow standards.
Conventional water treatment concepts blended with Modern technology is offered by Canadian Clear in their pressure sand filter, activated carbon filter, de-mineralizes, softener, iron removal filter, fluoride removal of plants, ozonators, ultra violet sterilizers, ultra filtration, micro filters, nano filtration, electro deionization, reverse osmosis system and so on.
Canadian Clear advanced research and development wing has developed systems for various applications in prime industries like off shore oil rigs, fertilizers, hospitals, refineries, etc.
We have an offer of effective water treatment plants which are automated to remove several captions and anions from the contaminated water. Our plants are entirely free from virus attacks and bacterial elements. These systems are durable, automatic, reliable and trustworthy to offer efficient and safe operation.
Deals with the preliminary treatment of sewage and includes screening, grit removal and equalization. Treatment details, design and performance details are included in this presentation.
The video for this presentation is available on our Youtube channel:
https://youtube.com/allceuseducation A continuing education course for this presentation can be found at https://www.allceus.com/member/cart/index/index?c=
This powerpoint is part of AllCEU's Addiction Counselor Training Series. Screening is the characterized by the initial encounter between a consumer and a referral source. Screeners can be nurses, volunteers, pastors etc. They gather information and determine if there may be a problem that warrants a closer assessment. Each week we provide 8 hours of face-to-face continuing education and precertification training to LPCs, LADCs, and those wishing to become addiction counselors. Many states allow precertification to be done via online learning as well. We are approved education providers by NAADAC #599 and NBCC #6261
Deals with the primary treatment of sewage specially for the removal of suspended solids and also for the stabilization of the separated solids. treatment, design and performance details of primary clarifiers, anaerobic ponds, UASB reactors, UASB ponds, and baffled anaerobic reactors are covered in this presentation..
Primary waste water treatment powerpointb presntationkanchan jadon
This ppt basically depends on primary waste water treatment. It gives brief description about what is water treatment,sources of waste water,types of waste water basically mostly focus on primary treatment like screening,types of screening,description on every type of screens, grit removal,communator,primary sedimentation.
Lecture notes of Environmental Engineering-II as per Solapur university syllabus of TE CIVIL.
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K Orchid college of Engg and Technology,
Solapur
A large amount of water is discharged back after domestic and industrial usage.
Contamination upon reaching beyond certain allowed concentrations is termed pollution and the contaminants are called the pollutants.
If the concentration of substances naturally present in water increases then also the water is said to be polluted.
Water pollution may be defined as the contamination of streams, lakes, seas, underground water, or oceans by substances, which are harmful to living beings.
This presentation contains:
1. types of water pollutants
2. sources of water pollutants
3. effects of water pollution
4. control measures of water pollution.
Ecology and Environmental Biology,air pollution, environmental pollution, gaseous pollutants, global environmental change, ionizing radiation, noise pollution, non-ionizing radiation, pollutants, pollution, prevention and control of air pollution, radiation damage, radiation pollution, soil pollution, sources of water pollution, types of pollution, water pollution, water recycling
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
2. •Water pollution is the contamination of water bodies
(e.g. lakes, rivers, oceans, aquifers and groundwater).
• Definition :- the presence of impurities and foreign substance in
water in such a quantity that lowers it quality and makes it unfit for
consumption and become a health hazard.
.
3. SOURCES OF WATER POLLUTION
Jun ‘13
• Point Sources:
Point source water pollution refers to contaminants that
enter a waterway from a single, identifiable source.
Examples: pipes, ditches, discharges from a sewage treatment
plant, a factory, city storm drain, municipal storm sewer systems,
industrial waste water such as from construction sites
4. SOURCES OF WATER POLLUTION
• Non-Point Sources (NPS):
NPS pollution is often the cumulative effect of small
amounts of contaminants gathered from a large area.
A common example is the leaching out of nitrogen compounds
from fertilized agricultural lands.
Nutrient runoff in storm water from "sheet flow" over
an agricultural field or a forest are also cited as examples of NPS
pollution.
Contaminated storm water washed off of parking lots, roads and
highways, called urban runoff, is sometimes included under the
category of NPS pollution. However, because this runoff is typically
channeled into storm drain systems and discharged through pipes to
local surface waters, it becomes a point source.
5. INDICATORS OF WATER POLLUTION
• Bad taste
• Offensive odour
• Visible turbidity
• Reduction in the number of aquatic lives
• Oil or grease floating on the surface of water
• Unrestricted growth of aquatic weeds in water bodies
• Outbreak of an epidemic
6. CAUSES OF WATER POLLUTION / POLLUTANTS
Jun ‘13
1. Industrial Waste
2. Agricultural Chemicals
3. Domestic Sewage
4. Thermal and Radioactive Waste
5. Biodegradable and Non-BiodegradableWaste:
7. CAUSES OF WATER POLLUTION / POLLUTANTS
Jun ‘13
1. Industrial Waste:
• All the industries discharge the waste by-products from the
manufacturing processes into rivers or other water bodies.
• Most of the rivers and fresh water streams are badly
polluted with industrial effluents from industries such as
paper and pulp, refineries, textiles, distilleries and steel
industries.
8. CAUSES OF WATER POLLUTION / POLLUTANTSCAUSES OF WATER POLLUTION / POLLUTANTS
1. Industrial Waste:
• Industrial waste can be categorized as:
i) Organic substances such as phenol and alcohol that increase the
BOD by decreasing the oxygen content..
ii) Acids and alkalis which change the pH of water thereby posing a
threat to aquatic life.
iii) Toxic substances such as heavy metals like mercury, lead and
arsenic that cause extensive, irreversible damage to plant and
animal life.
iv) Oil and other floating impurities that interfere with self-purification
of water bodies.
v) Colour producing dyes that change the colour of the water with
depleting oxygen content thereby affecting aquatic life.
9. CAUSES OF WATER POLLUTION / POLLUTANTS
2. Agricultural Chemicals:
Fertilizers: Excessive use of chemical fertilizers results in
accumulation of nitrogen, phosphorous and water on land.
These are washed off the land with water through rainfall and
irrigation into water bodies thereby polluting the water.
Pesticides: They not only kill targeted pests but also affect
the untargeted helpful organisms. Their effects are long
10. CAUSES OF WATER POLLUTION / POLLUTANTS
3. Domestic sewage:
• It consists of water borne wastes of the human community.
• It contains 99% water and 1% solid. Out of which 70% are
organic (proteins, carbohydrates, fats) and 30% are inorganic
(salt, minerals).
• Mostly it is disposed off as such in treated, partly or untreated
form in nearby lakes, rivers or sea, where it causes pollution.
11. CAUSES OF WATER POLLUTION / POLLUTANTS
4. Thermal and Radioactive Waste:
• Different industries and nuclear power plants use water and
discharge the heated water into nearby water bodies.
• Nuclear reactors, nuclear explosions, nuclear war, medicinal
use and research laboratories are the main sources of
radioactive waste.
• These are most toxic as their effect persists for a number of
generations..
12. CAUSES OF WATER POLLUTION / POLLUTANTS
5. Biodegradable and Non-BiodegradableWaste:
• Biodegradable pollutants consist mainly of organic matter
from domestic sewage. They are decomposed by micro-
organisms naturally or can be artificially decomposed in
chemical treatment plants. Excessive biodegradable waste in
the environment leads to problem in dispersal or recycling
posing a threat to the environment.
• Non-biodegradable wastes includes plastic bags, long chain
detergents, aluminium cans, glass and phenolic chemicals
which can neither be decomposed nor recycled. These are used
only for filling lands.
13. MEASUREMENT OF WATER POLLUTION
Sample Collection:
i) Manual collection
ii) Auto-sample collection
Sample collection +Testing
14. MEASUREMENT OF WATER POLLUTION
Testing:
i) PhysicalTesting [temperature, total suspended solid (TSS), turbidity etc.]
ii) Chemical Testing [pH level, biochemical oxygen demand (BOD), chemical
oxygen demand (COD), nutrients (nitrate and phosphate compounds), metals
(copper, zinc, cadmium, lead and mercury), oil and grease , total petroleum
hydrocarbons (TPH) and pesticides]
iii) Biological Testing [use of plant, animal, and/or microbial indicators to
monitor the health of an aquatic ecosystem]
TurbidityTest Apparatus
17. SEWAGE TREATMENT
Pretreatment:
Pretreatment removes all materials that can be easily
collected from the raw sewage before they damage or clog the
pumps and sewage lines of primary treatment clarifiers. Objects
commonly removed during pretreatment include trash, tree
limbs, leaves, branches, and other large objects.
• Bar Screen –
The influent in sewage water passes through a bar
screen to remove all large objects like cans, rags, sticks, plastic
packets etc. carried in the sewage stream. This is most
commonly done with an automated mechanically raked bar
screen in modern plants serving large populations. The solids are
collected and later disposed in a landfill, or incinerated.
18. SEWAGE TREATMENT
Pretreatment:
• Grit Removal - Pretreatment may include a sand or grit
channel or chamber, where the velocity of the incoming sewage
is adjusted to allow the settlement of sand, grit, stones, and
broken glass. These particles are removed because they may
damage pumps and other equipment. For small sanitary sewer
systems, the grit chambers may not be necessary, but grit
removal is desirable at larger plants. Grit chambers come in 3
types: horizontal grit chambers, aerated grit chambers and
vortex grit chambers.
• Fat and Grease Removal - Fat and grease are removed by
passing the sewage through a small tank where skimmers collect
the fat floating on the surface. Air blowers in the base of the tank
may also be used to help recover the fat as a froth.
19. SEWAGE TREATMENT
PrimaryTreatment:
In the primary sedimentation stage, sewage flows through large
tanks, commonly called "pre-settling basins", "primary sedimentation tanks"
or "primary clarifiers". The tanks are used to settle sludge while grease and
oils rise to the surface and are skimmed off. Primary settling tanks are usually
equipped with mechanically driven scrapers that continually drive the
collected sludge towards a hopper in the base of the tank.
20. SEWAGE TREATMENT
SecondaryTreatment:
Secondary treatment is designed to substantially
degrade the biological content of the sewage which are derived
from human waste, food waste, soaps and detergent. The
majority of municipal plants treat the settled sewage liquor
using aerobic biological processes. To be effective,
the biota require both oxygen and food to live. The bacteria and
protozoa consume biodegradable soluble organic contaminants
(e.g. sugars, fats, organic short-chain carbon molecules, etc.)
List of process types: Activated sludge, Aerated lagoon, Aerobic
granulation, andTrickling filter
21. SEWAGE TREATMENT
TertiaryTreatment:
The purpose of tertiary treatment is to provide a final
treatment stage to further improve the effluent quality before it
is discharged to the receiving environment (sea, river, lake, wet
lands, ground, etc.). More than one tertiary treatment process
may be used at any treatment plant. If disinfection is practised, it
is always the final process. It is also called "effluent polishing.“
• Nitrogen Removal
• Phosphorus Removal
• Disinfection
•Odour Control
22. CONTROL MEASURES FOR WATER POLLUTION
The most effective method to control water pollution is to
prevent or minimize the mixing of pollutants into water
bodies.
Water Prevention and Control of Pollution Act, 1972, was
enacted by government of India to control all types of water
pollution.
It cares for maintenance and restoration of water of all types,
such as surface water and ground water.
Apart from legislation, each individual should take care of
water quality and refrain from polluting water.
Industries should treat their effluents before they dispose it
into water bodies.
23. CASE STUDY: MINAMATA DISEASE
Minamata disease: sometimes referred to as
Chisso-Minamata disease is a neurological
syndrome caused by severe mercury
poisoning.
Symptoms include:
• ataxia,
• numbness in the hands and feet,
• general muscle weakness,
• narrowing of the field of vision and
• damage to hearing and speech.
In extreme cases, insanity, paralysis, coma, and death follow
within weeks of the onset of symptoms. A congenital form of
the disease can also affect foetuses in the womb.
Jun ‘13
24. CASE STUDY: MINAMATA DISEASE
• Minamata disease was first discovered in Minamata city
in Japan in 1956.
• It was caused by the release of methyl mercury in the
industrial wastewater from the Chisso Corporation's chemical
factory, which continued from 1932 to 1968.
•This highly toxic chemical bioaccumulated in shellfish and fish
in Minamata Bay and the Shiranui Sea, which, when eaten by
the local population, resulted in mercury poisoning.
•While cat, dog, pig and human deaths continued for 36 years,
the government and company did little to prevent the pollution.
The animal effects were severe enough in cats that they came
to be named as having "dancing cat fever“.
25. CASE STUDY: POLLUTION OFTHE GANGES
The Ganga is the largest river in India with an extraordinary religious
importance for Hindus.
Situated along its banks are some of the world's oldest inhabited
cities like Varanasi and Patna.
It provides water to about 40% of India's population across 11
states, serving an estimated population of 500 million people or
more, which is larger than any other river in the world.
26. CASE STUDY: POLLUTION OFTHE GANGES
• Fecal coliform counts up to 100,000,000 MPN (most probable
number) per 100 ml.
• BOD (biological oxygen demand) levels averaging over 40 mg/l in the
most polluted part of the river inVaranasi.
•The overall rate of water-borne diseases was estimated to be about
66%.
• A systematic classification done by UEPPCB on river waters into the
categories A: safe for drinking, B: safe for bathing, C: safe for
agriculture, and D: excessive pollution, put the Ganga in D.
• Coliform bacteria levels in the Ganga have also been tested to be at
5,500, a level too high to be safe for agricultural use let alone drinking
and bathing.
• Chromium levels are more then 70 times the maximum recommended
value.
• NCRP suggested that "those living along its banks in Uttar
Pradesh, Bihar and Bengal are more prone to cancer than anywhere
else in the country".
28. CASE STUDY: POLLUTION OFTHE GANGES
Causes
1. Human waste:
An area of 1,800,000 km2 (400,000 square miles), the river flows
through 29 cities with population over 100,000; 23 cities with
population between 50,000 and 100,000, and about 48 towns. A
large proportion of the sewage water with higher organic load in
the Ganges is from this population through domestic water usage.
29. 2. Industrial waste:
Because of the establishment of a large number of industrial cities
on the bank of river Ganga like Kanpur, Allahabad, Varanasi and
Patna, countless tanneries, chemical plants, textile mills,
distilleries, slaughterhouses, and hospitals prosper and grow along
this and contribute to the pollution of the Ganga by dumping
untreated waste into it. Industrial effluents are about 12% of the
total volume of effluent reaching the Ganga. Although a relatively
low proportion, they are a cause for major concern because they are
often toxic and non-biodegradable.
3. Religious events:
During festival seasons, over 70 million people bathe in the Ganga
over a few weeks to clean themselves from their past sins. Some
materials like food, waste or leaves are left in the Ganga
for ritualistic reasons.
CASE STUDY: POLLUTION OFTHE GANGES
30. CASE STUDY: POLLUTION OFTHE GANGES
Effects
1. Marine Life:
The results of mercury analysis in various specimens
collected along the basin indicated that some fish muscles
tended to accumulate high levels of mercury. Of it,
approximately 50–84% was organic mercury. A strong positive
correlation between mercury levels in muscle with food habit
and fish length was found.
The Ganges River dolphin is one of few species of fresh
water dolphins in the world. Listed as an endangered species,
their population is believed to be less than 2000. Hydroelectric
and irrigation dams along the Ganga that prevents the dolphins
from travelling up and down river is the main reason for their
reducing population.
31. CASE STUDY: POLLUTION OFTHE GANGES
2. Wildlife:
Some of the dams being constructed along the Ganga
basin will submerge substantial areas of nearby forest. For
example, the Kotli-Bhel dam at Devprayag will submerge 1200
hectares of forest, wiping out the river otters and
the mahaseer fish that are found there. Wildlife biologists in
India have been warning that the wild animals will find it difficult
to cope with the changed situation.
3. Human beings:
Water in the Ganga has been correlated to contracting
dysentery, cholera, hepatitis, as well as severe diarrhea which
continues to be one of the leading causes of death of children in
India.
32. CASE STUDY: POLLUTION OFTHE GANGES
Cleaning Efforts
1. The Ganga Action Plan was launched by Shri Rajeev Gandhi,
the then Prime Minister of India on 14 Jan, 1986 with the main
objective of pollution abatement, to improve the water quality
by interception, diversion and treatment of domestic sewage
and present toxic and industrial chemical wastes from identified
grossly polluting units entering in to the river.
2. India's current Prime minister Narendra Modi affirmed to work
for cleaning the river and controlling Pollution.
Subsequently, Namami Ganga project was announced by the
Government in July 2014 budget. An estimated Rs 2,958 crores
have been spent till July 2016 in various efforts for clean up of
the river.