Softening of water by the ion exchange process.
Sewage treatment: Primary, secondary (activated sludge) and tertiary methods. Sources of water pollution, Sewage, Definitions of Biological oxygen demand (BOD) and Chemical Oxygen Demand (COD), determination of COD, numerical problems on COD.Ĭhemical analysis of water: Sulphates (gravimetry) and Fluorides (colourimetry). Water Chemistry: Introduction, sources and impurities of water boiler feed water, boiler troubles with disadvantages -scale and sludge formation, boiler corrosion (due to dissolved O, CO, and MgC,). Waste Management: Solid waste, e-waste & biomedical waste: Sources, characteristics & disposal methods (Scientific landfilling, composting, recycling and reuse) Download Free Engineering PDF Books, Owner's Manual and Office Templates. Secondary air pollutant: Ozone, Ozone depletion Download Free PDF Books, Notes & Templates. Environmental Pollution and Water ChemistryĮnvironmental Pollution: Air pollutants: Sources, effects and control of primary air pollutants: Carbon monoxide, Oxides of nitrogen and sulphur, hydrocarbons, Particulate matter, Carbon monoxide, Mercury and Lead. It can also take place due to electrochemical interaction of metal, with the environment.,, The process of slow destruction of metal due to chemical or electrochemical attack of the, environment at their surfaces resulting into the formation of compounds such as oxides, carbonates, sulphides, sulphates etc., is called corrosion.,, The most.