Urban life produces severe byproducts harmful to its ecosystem. Sewage is one such example. It is a type of that includes human faeces, household wastes that drains out as end-product. Developed countries pay highest attention to this issue as not only public health but the surrounding ecosystem, specially fisheries in the nearby rivers and lakes can get close to , while developing countires overlook the issue simply on public hand. Sewage channels or drains are not enough, the wastewater needs to be treated before discharging to the nature, so that nature can do rest of the cleaning. Wastewater treatment is always to aid nature by not letting it overwhelmingly disrupting its cleaning capacity. Let us be more conscious about our wastes and becoming more healthy.
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