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Water Pollution.

What is pollution ?. Pollution is defined as unwanted chemical or physical materials in an area that negatively impacts the environment..

How does pollution arise ?. Pollution get arise by the Pollutants..

What are pollutants ?. Any substance that makes the environment dirty or contaminated is a pollutant..

Water is a natural resource that is impotant for every being survival..

What is water pollution ?. Water pollution is the contamination of oceans, seas, lakes, rivers, aquifers, and groundwater by the pollutants thrown in it ..

Causes Of Water Pollution.

The main causes of water pollution. Industrial sewage.

Industries of paper, textile, sugar mills, leather, paint produce wastes containing highly toxic substances like lead, mercury, arsenic and their compounds. The discharge of untreated industrial sewage directly into the water bodies is one of the main causes of water pollution..

Agricultural wastes:. In modern agriculture, large quantities of pesticides and fertilisers are used. The excess of these inorganic chemicals find their way into water bodies that results in water pollution. Even groundwater is polluted due to excessive use of pesticides and weedicides..

Human activities :. Bathing of human beings and animals in or near lakes, rivers, etc., pollutes the water bodies. Throwing of wastes in lakes and ponds lead to water pollution ..

Domestic Sewage :. Liquid wastes from kitchens and toilets are discharged into rivers through sewer systems causing water pollution..

Oil Spills:. Oil spill - Wikipedia. Oil spills from huge tankers is one of the major causes of water pollution that affects the marine plants and animals ..

Harmful effects of water pollution. Water Pollution; Causes,Effects,Solutions | Environment Buddy.

Harmful effects of water pollution Effects on human health Eutrophication Biological Magnifications.

Effects on human health:. Polluted water can cause many diseases like cholera, dysentery, typhoid, gastroenteritis, jaundice and diarrhoea in human beings..

Eutrophication:. Washing away of fertilisers into water bodies causes increased growth of algae and other weeds in water bodies. This is called algal bloom. Due torespiration carried out by algae, a large amount of dissolved oxygen in water is consumed . Death of algae further reduces the amount of oxygen in water. This is because microorganisms use oxygen for the decomposition of dead algae. The process of nutrient enrichment of water bodies that stimulates the growth of aquatic plants like algae that may result in depletion of dissolved oxygen is called eutrophication.: This causes loss of biodiversity because once the level of dissolved oxygen falls, fishes and many other aquatic animals also die due to suffocation..

Biological magnification :. Biomagnification, also known as bioamplification or biological magnification, is the increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain ..

Methods of Prevention and Control of Water Pollution.

Water clothes , cleaning utensils or taking bath near water bodies such as lakes , rivers and ponds should be restricted ..

Excessive use of fertilisers and pesticides should be discouraged..

Domestic sewage should be treated at the sewage treatment plants to remove toxic substances before being released into the water bodies ..

Wastewater Treatment Chemicals: Polymers, Flocculants, Defoamers.

Water Treatment Plant. Sedimentation Tank. Loading Tank.

Water Treatment Plant :. A water treatment plant is a destination where wastewater (water which is no longer fit for its current purpose) moves to once it leaves homes and businesses through sewage pipes . The sewage system contains miles of pipes below ground where wastewater flows to the treatment plant for processing..