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Which of the following reduces water pollution effectively?
Increased industrial discharge
Proper sewage treatment
Deforestation
Excessive use of chemical fertilizers
Proper sewage treatment
Proper sewage treatment involves removing contaminants from municipal wastewater through physical, chemical, and biological processes before discharge. This critical infrastructure significantly reduces pathogen loads, organic waste, and nutrient runoff entering natural water bodies.
Proper sewage treatment involves removing contaminants from municipal wastewater through physical, chemical, and biological processes before discharge. This critical infrastructure significantly reduces pathogen loads, organic waste, and nutrient runoff entering natural water bodies.
The Water (Prevention and Control of Pollution) Act was enacted by the Parliament of India in 1974 to provide for the prevention and control of water pollution and the maintenance or restoration of wholesomeness of water.
Sewage treatment plants utilize primary, secondary, and tertiary treatment stages to purify municipal wastewater.
Primary treatment removes suspended solids through sedimentation, while secondary treatment uses biological processes to break down organic matter.
Tertiary treatment involves advanced filtration and disinfection to eliminate remaining pathogens and chemical residues.
Option A (Increased industrial discharge) introduces heavy metals, toxic effluents, and hazardous chemicals, severely worsening water quality.
Option C (Deforestation) increases soil erosion, leading to higher sediment runoff and siltation in rivers and lakes.
Option D (Excessive use of chemical fertilizers) causes eutrophication due to nitrogen and phosphorus runoff, depleting oxygen in aquatic ecosystems.
B is correct тАФ Proper sewage treatment effectively removes harmful pollutants and pathogens from wastewater before it enters natural aquatic systems.
Questions on environmental legislation like the Water Act of 1974 frequently appear alongside pollution control methodologies in RRB, SSC, and state civil service exams.
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