These notes have been taken from various students and teachers of prestigious institutes & carefully compiled to make the best notes for GATE preparation. These notes are very nicely written in good handwriting to help student easily grasp the concept and become able to solve the Gate problems.

Topic covered :
Water and Waste Water: Quality standards, basic unit processes and operations for water
treatment. Drinking water standards, water requirements, basic unit operations and unit
processes for surface water treatment, distribution of water. Sewage and sewerage
treatment, quantity and characteristics of wastewater. Primary, secondary and tertiary
treatment of wastewater, effluent discharge standards. Domestic wastewater treatment,
quantity of characteristics of domestic wastewater, primary and secondary treatment.
Unit operations and unit processes of domestic wastewater, sludge disposal.
Air Pollution: Types of pollutants, their sources and impacts, air pollution meteorology, air
pollution control, air quality standards and limits.
Municipal Solid Wastes: Characteristics, generation, collection and transportation of solid
wastes, engineered systems for solid waste management (reuse/ recycle, energy
recovery, treatment and disposal).
Noise Pollution: Impacts of noise, permissible limits of noise pollution, measurement of
noise and control of noise pollution.