Recycling of wastewater is done to treat the wastewater to a level suitable for various purposes. Water recycling process is used for various purposes.
Benching: A surface at the base of an inspection chamber or manhole to confine the flow of sewage to avoid the accumulation of deposits and provide a safe working surface. The surface is sloped so that any surcharge flow runs off it. Blinding: Material that will fill interstices, irregularities and excavated soft spots in the(…)
Waste management is the collection, transport, processing, recycling or disposal, and monitoring of waste materials. The term usually relates to materials produced by human activity, and is generally undertaken to reduce their effect on health, the environment or aesthetics. Waste management is also carried out to recover resources from it. Waste management can involve solid,(…)
S.No. Type of characteristics Type of impurity Permissible limit Absolute maximum limit Remarks 1 Physical Turbidity 5 25 On silica scale Colour 5 50 Colour number on cobalt scale Taste and odour 1 3 Threshold odour number 2 Chemical pH value 7 – 8.5 6.5 – 9.2 Hardness 75 mg/l 110 mg/l Hardness expressed(…)
The raw treated water can be checked and analysed by studying and testing their physical, chemical and microscopical characteristics as explained below: PHYSICAL CHARACTERISTICS OF WATER (1) Turbidity The turbidity is measured by a turbidity rod or by a turbiditymeter with optical observations and is expressed as the amount of suspended matter in mg/l or(…)
DISPOSAL OF SOLID WASTE Method of solid waste disposal are as below: Open burning Dumping into the sea Sanitary Landfills Incineration Composting Ploughing in fields Hog feeding Grinding and discharging into sewers Salvaging Fermentation and biological digestion Open burning Not an ideal method in the present day context Dumping into Sea Possible only in coastal(…)