Sewage treatment involves: The removal of solids by physical screening or sedimentation. The removal of soluble and fine suspended organic pollutants by biological oxidation and adsorption processes.,
What are the 4 stages of sewage treatment?
Tertiary treatment is the third, and final, stage in a standard wastewater management system. Once effluent has been treated in the primary and secondary stages by removing suspended solids, pH balancing and reducing its biochemical oxygen demand (BOD), it is ready to enter the tertiary stage.
What is sewage treatment class 7?
Sewage Treatment: The process of removing impurities from waste water before it can be reused or sent to the water bodies is called sewage treatment or cleaning of water. Sewage: The liquid waste which has water as its largest component (along with various types of impurities) is called sewage.
Which of the following is product of wastewater treatment?
The correct answer is Both biogas and sludge. Biogas and sludge are the products of wastewater treatment. The biogas forms due to the microbial degradation of the waste and sludge are the end by-product of the wastewater treatment.
What are the 3 stages of sewage treatment?
There are three main stages of the wastewater treatment process, aptly known as primary, secondary and tertiary water treatment.Dec 6, 2018
Does sewage treatment remove chemicals?
The Wastewater Treatment Process. Sewage Treatment refers to the process of removing contaminants, micro-organisms and other types of pollutants from wastewater. Wastewater, or raw sewage, is water that drains from toilets, sinks, showers, baths, dishwashers, washing machines and liquid industrial waste.
What is not removed in wastewater treatment?
Biological stages in wastewater treatment plants are not able to remove substances such as drugs, found in the wastewater of medical centers, or halogenated compounds and cyanides from industrial wastewater.Jul 26, 2013
What does sewage treatment remove?
Sewage treatment involves: The removal of solids by physical screening or sedimentation. The removal of soluble and fine suspended organic pollutants by biological oxidation and adsorption processes.