Sanitary engineering

Quality of Waste Water: Constituent and Characteristics of waste water

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Quality of waste water

1.1 Constituents of waste water: Waste water is the dilute mixture of various waste from residential areas, commercial, industrial and other public place. Before treatment and disposal it is essential to know it’s composition, quality and characteristics. Contains organic, inorganic matter and living organism. Physical constituents/impurities: grit, ash, sand, dirt etc.. They affect physical characteristics … Read more

Quantity of Waste Water: Description of sanitary & storm water and concept of time of concentration and time area graph

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Quantity of Waste Water: Description of sanitary & storm water and concept of time of concentration and time area graph

1.1 Introduction to source and type of waste water: Quality of waste water or sewage must be known to design of sewer. Underestimate of waste water quantity may cause overflow on the street and unsanitary condition will be created. Overestimate of waste water quantity may cause uneconomical section and self-cleansing velocity may not be calculate. … Read more

Design and Construction of Sewer: Hydraulic formula for sewer design and Types of sewer material

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Design of sewer line means finding out the cross section of sewer and the slope at which it is to be laid to transport the estimated quantity of sewage. Unlike pressurized flow in water supply pipelines, top surface of sewage is in contact with atmosphere and the flow type is open channel flow. Important considerations … Read more

Introduction to Sanitary Engineering: Historical development of waste water and solid waste management

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Principle of sanitation Sanitary Engineering: It is the branch of public health engineering which deal with the prevention & maintenance of the health of individual & the community. Its studies methodical collection, conveyance, treatment & disposal of waste water to land or water bodies meeting the criteria of pollution load as prescribed by the national … Read more