Define STP. How the waste water is treated in it to make it safe for human use?

Sewage Treatment Plants (STPs) are those plants where sewage water is treated before its discharge into the rivers. Discuss the following: What is sewage composition?

Sewage Treatment Plants (STPs) are those plants where sewage water is treated before its discharge into the rivers. Discuss the following: Sewage treatment provides not only usable water but also generates fuel. Justify the statement.

Sewage Treatment Plants (STPs) are those plants where sewage water is treated before its discharge into the rivers. Discuss the following: To which types of treatment, the sewage water is subjected to? Enlist the significance of each treatment type.

Sewage Treatment Plants (STPs) are those plants where sewage water is treated before its discharge into the rivers. Discuss the following: Why the secondary treatment is also called biological treatment?

Fill in the blanks ____ % impurities make domestic sewage unfit for human use.