Among the following, which do not come under the category of sewage treatment?
Among the following, which do not come under the category of sewage treatment?
The correct option is C Degrading the number of toxic organic waste
Sewage treatment is the process of removing contaminants
from wastewater, primarily from household sewage. It includes physical,
chemical, and biological processes to remove these contaminants and produce
environmentally safe treated wastewater (or treated effluent).
The sewage treatment involves three stages, called primary,
secondary, and tertiary treatment. First, the solids are separated from the
wastewater stream. Then, dissolved biological matter is progressively converted
into a solid mass by using indigenous, water-borne micro-organisms. Finally,
the biological solids are neutralized, then disposed of or re-used, and the
treated water may be disinfected chemically or physically (for example by
lagoons and micro-filtration).
Sewage treatment is the process of removing contaminants from wastewater, primarily from household sewage. It includes physical, chemical, and biological processes to remove these contaminants and produce environmentally safe treated wastewater (or treated effluent).
The sewage treatment involves three stages, called primary, secondary, and tertiary treatment. First, the solids are separated from the wastewater stream. Then, dissolved biological matter is progressively converted into a solid mass by using indigenous, water-borne micro-organisms. Finally, the biological solids are neutralized, then disposed of or re-used, and the treated water may be disinfected chemically or physically (for example by lagoons and micro-filtration).
