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Capacity of India’s Sewage Treatment Plants

  • Posted By
    10Pointer
  • Categories
    Environment
  • Published
    25th Sep, 2021

According to the latest report of the Central Pollution Control Board (CPCB), Sewage Treatment Plants (STPs) in India are able to treat a little more than a third of the sewage generated per day.

Context

According to the latest report of the Central Pollution Control Board (CPCB), Sewage Treatment Plants (STPs) in India are able to treat a little more than a third of the sewage generated per day.

Key-highlights of the report

  • India generated 72,368 MLD (million litres per day) whereas the installed capacity of Sewage Treatment Plants STPs was 31,841 MLD (43.9 per cent).
  • 5 states and Union Territories (UT) - Maharashtra, Gujarat, Uttar Pradesh, Delhi and Karnataka - account for 60% of the total installed treatment capacity of the country.
  • The other five other states and UTs — Madhya Pradesh, Haryana, Punjab, Tamil Nadu and Rajasthan — alone constitute 86 per cent of the total installed capacity.
  • Arunachal Pradesh, Andaman & Nicobar Islands, Lakshadweep, Manipur, Meghalaya and Nagaland have not installed sewage treatment plants.
  • States and UTs like West Bengal, Odisha and Jammu and Kashmir treat 2-7 percent of sewage.
  • Chandigarh ranks first in terms of total sewage generated to what is actually treated.

Reuse of Treated sewage

  • The proportion of the reuse of treated sewage is maximum in Haryana (80 percent) followed by 
    • Puducherry (55 per cent)
    • Delhi (50 per cent)
    • Chandigarh (35 per cent)
    • Tamil Nadu (25 percent)
    • Madhya Pradesh (20 percent)
    • Andhra Pradesh (5 percent)
  • The reuse of treated sewage can decrease the water demand from aquatic sources like rivers, ponds, lakes and as well as groundwater sources. 
    • This will help in Less consumption of raw water will help in conserving natural water resources.
  • Treated sewage water can be reused for horticulture, irrigation, washing activities (road, vehicles and trains), fire-fighting, industrial cooling, toilet flushing and gardening.

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