ENVIRONMENTAL ENGINEERING-WATER POLLUTION: Incoming wastewater, with BOD5 equal to 200mg/L, is treated in a well-run secondary treatment plant that removes 90% of the BOD. You are to run a five-day BOD test with a standard 300mL bottle, using a mixture of treated sewage and dilution water (no seed). Assume the initial DO is 9.2 mg/L. FIND: Roughly what maximum volume of treated wastewater should be put into the bottle in you want to have at least 2.0 mg/L of DO at the end of the test (filling the rest of the bottle with water)? If you make a mixture of half water and half treated wastewater, what DO would you expect after five day?

Q: A domestic wastewater with BODs of 205 mg/L is treated by a secondary treatment plant that removes…

A: Given, BOD5 = 205 mg/L Initial DO = 9.2 mg/L Final DO = 2 mg/L Bottle volume = 300 ml

Q: A wastewater sample of 2 ml is made up to 300 ml in a BOD bottle with distilled water. The initial…

A: Given- water sample volume=2 mL300 mL BOD bottleInitial DO=8 mg/LFinal DO=2 mg/LBOD=?

Q: A 3 mL industrial wastewater sample is added to a BOD bottle (300mL).  The initial D.O.…

A:

Q: The wastewater from a manufacturing treatment plant is discharged to a municipal `treatment plant…

A: Given: From manufacturing wastewater: From domestic wastewater: The weight ratio of the mix is…

Q: A silt particle with a density of 2500 kg/m3 and terminal settling velocity (vs) of 1.9 m/hr is…

A: The given data is shown below:

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.