Sewage is often synonymous with terms like pollution, discharge, excess, excrement, garbage, junk, leavings, rubbish, runoff, slop, trash, etc.
It is waste matter from domestic or industrial
establishments that is carried away in sewers or drains for dumping or conversion into a form that is not toxic.
There are billions of people on Earth, so treating sewage is a big priority.
Developing nations are usually not concerned about sewage, and even where there may be concerned, there are often lack of facilities to take care of it. No wonder, Sewage disposal has been considered a major problem in developing countries.
Untreated sewage water in such areas can contaminate the environment and cause diseases such as diarrhoea.
Unlike in developing nations, developed nations are more worried about sewage. In developing nations, there are usually no good and proper sewage disposal.
Here are a few reasons why developed nations worry more about Sewage:
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 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.
Sewage is mainly biodegradable and most of it is broken down in the environment.
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