Sewage

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Treatment and disposal of sewage is carried out to neutralise its harmful effects.
And much of that sewage is raw and untreated, gushing direct from sewer pipes into fields at the fringes of the developing worlds great megacities, reveals the first global survey of the hidden practice of waste-water irrigation.
The less water we use, the less sewage is produced.
Aerobic Sewage Treatment After sewage is digested anaerobically in septic tank, it is treated with oxygen (aerobically) in a leach field.
Why Treat Sewage? The primary purpose in treating sewage is to protect human health.

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