An industry is discharging 2500 m3/d wastewater into a sanitary sewer. The concentrations of BOD5, TSS, TN, and TP are 200, 280, 35 and 10 mg/L, respectively. Calculate the population equivalent of the industry based on flow, BOD5, TSS, TN, and TP (i.e., number of people served). Assume that the unit waste loadings in terms of g per capita per day are 95, 104, 18, and 4 for BOD5, TSS, TN (as N), TP (as P), respectively.

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Collection Systems

The collection systems form a part of sanitary engineering, which is a sub-branch of civil engineering. It is also known as public health engineering and wastewater engineering. It is a methodology followed to remove and properly dispose of human waste, along with creating systems to provide safe and clean usable water. These measures ensure a hygienic and disease-free community. Sanitary engineering, apart from building sewer disposal units, is also involved in plumbing, fire protection, hydraulics, life safety, environmental protection, information technology, microbiology, pathology, and so on.