Sewage and Waste Water:
Sewage is the term used for wastewater that often contains faeces, urine and laundry waste. Sewage disposal is a major problem in developing countries as many people in these areas don’t have access to sanitary conditions and clean water.Untreated sewage water in such areas can contaminate the environment and cause diseases such as diarrhoea.Sewage in developed countries is carried away from the home quickly and hygienically through sewage pipes.
Sewage is treated in water treatment plants and the waste is often disposed into the sea.
In developed countries, sewage often causes problems when people flush chemical and pharmaceutical substances down the toilet. When people are ill, sewage often carries harmful viruses and bacteria into the environment causing health problems.
Sewage is the term used for wastewater that often contains faeces, urine and laundry waste. Sewage disposal is a major problem in developing countries as many people in these areas don’t have access to sanitary conditions and clean water.Untreated sewage water in such areas can contaminate the environment and cause diseases such as diarrhoea.Sewage in developed countries is carried away from the home quickly and hygienically through sewage pipes.
Sewage is treated in water treatment plants and the waste is often disposed into the sea.
In developed countries, sewage often causes problems when people flush chemical and pharmaceutical substances down the toilet. When people are ill, sewage often carries harmful viruses and bacteria into the environment causing health problems.
Marine Dumping:
Dumping of litter in the sea can cause huge problems. Litter items such as 6-pack ring packaging can get caught in marine animals and may result in death. Different items take different lengths of time to degrade in water:
Cardboard – Takes 2 weeks to degrade.
Newspaper – Takes 6 weeks to degrade.
Foam – Takes 50 years to degrade.
Styrofoam – Takes 80 years to degrade.
Aluminium – Takes 200 years to degrade.
Plastic packaging – Takes 400 years to degrade.
Glass – It takes so long to degrade that we don’t know the exact time.
Cardboard – Takes 2 weeks to degrade.
Newspaper – Takes 6 weeks to degrade.
Foam – Takes 50 years to degrade.
Styrofoam – Takes 80 years to degrade.
Aluminium – Takes 200 years to degrade.
Plastic packaging – Takes 400 years to degrade.
Glass – It takes so long to degrade that we don’t know the exact time.
Industrial Water:
Industry is a huge source of water pollution, it produces pollutants that are extremely harmful to people and the environment.
Oil Pollution:
Oceans are polluted by oil on a daily basis from oil spills, routine shipping, run-offs and dumping.
Underground Storage Leakage:
A tank or piping network that has at least 10 percent of its volume underground is known as an underground storage tank (UST). They often store substances such as petroleum, that are harmful to the surrounding environment should it become contaminated. Many UST’s constructed before 1980 are made from steel pipes that are directly exposed to the environment. Over time the steel corrodes and causes leakages, affecting surrounding soil and groundwater.
Global Warming:
An increase in water temperature can result in the death of many aquatic organisms and disrupt many marine habitats. For example, a rise in water temperatures causes coral bleaching of reefs around the world. This is when the coral expels the microorganisms of which it is dependent on. This can result in great damage to coral reefs and subsequently, all the marine life that depends on it.
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