It was decided to design wastewater collection system for the same area in Figure 1. If you know that the average number of persons per villa is 20, and per capita wastewater generation is 250 L/d. A circular concrete pipe was constructed to convey the wastewater to small wastewater treatment plant. Determine the pipe diameter, depth of water in the pipe, and flow velocity.

Q: A treatment unit is 7.0m wide, 25m long and has a depth of 3.5m. If the wastewater flow rate through…

A: Question is based on waste water treatment . Dimension of treatment unit and wastewater flow are…

Q: If the BOD; for some wastewater is 220 mg/L and the ultimate BOD is 310 mg/L, find the reaction rate…

A: BOD5 = 220 mg/L BODt= 310 mg/L we know BODt = Lo (1-e-kt) 220 = 310 (1-e-5k) e-5k = 1-220310 -5k =…

Q: A wastewater is to be disinfected with 35mg/L of chlorine to obtain 99% kill of micro-organisms. The…

A:

Q: A treatment unit is 7.0m wide, 25m long and has a depth of 3.5m. If the wastewater flow rate through…

A: given  Width of thank  B=7.0m, depth  H=3.5 m  and length   L=3.5 mWater flow rate   (discharge )…

Q: 8: A wastewater sample was diluted 10% with tap water for conducting BOD Test. The DO content in…

A:

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: 1. A city discharges 7.2 MLD of wastewater with a BOD, of 295 mg/L into a stream. Answer the…

A: solution Given discharge of waste water Qw=7.2MLD=0.083 m3secBOD5 waste water =295 mgltaBOD5 stream…

Q: 5. A city discharges sewage water into the river from 2 pipes. A pipe discharges 14000 m3 per day…

A:

Q: Sketch the dissolved oxygen sag curve a (100-km) (D20.40.80.100) reach of the stream below the…

A: Given: Qw=5 cumecs ; Qs=22 cumecs; BOD(5) of Waste water=55mg/l ( 200 C) BOD(5) of Stream=3mg/l (…

Q: a. Why do we need an accurate estimation of the sewage flow? b. In a residential area, there are 250…

A: (a) An accurate estimation of sewage flow is crucial for the efficient and effective…

Q: A lagoon having three cells, each 100,000 m2 in area, a minimum operating depth of 0.5 m, and a…

A: Given data- 3-cells with area=100,000 m2 eachDischarge (Q)=2,000 m3/dayAvg. BOD5=200 mg/L To find-…

Q: A detention pond receives wastewater having a constituent concentration of 500 mg/L. A discharge…

A: Solution Given Data constituent Concentration = 500 mg/L Discharge concentration= 100 mg/L Flow…

Q: The wastewater contains 7.5 x 105 fecal CFU per liter. The maximum permissible fecal coliform…

A: Given: Initial coliform concentration, Co = 7.5 x 105 CFU/L Maximum permissible coliform…

Q: Problem: 1. Design a facultative pond to treat (10650)gpm of sewage having (10650/20)mg/L of BOD.…

A: Note:- Hi! Thank you for the question As per the honor code, We’ll answer the first question since…

Q: 19. Two circular primary clarifiers are to be installed in a sewage treatment plant processing the…

A:

Q: tream with a flow rate of 5 m³/s is having an ultimate BOD of 30 mg/litre. A wastewater discharge of…

A: According to given data  A stream with a flow rate of 5 m³/s ishaving an ultimate BOD of 30…

Q: Calculate the diameter of combined sewer in meter for the following data: Catchment area = 200…

A: Given data- Catchment area A=200 ha, Population P=70,000 Velocity V=3.5 m/s, Time of concentration…

Q: The following data pertains to a sewage sample at a point source. Initial dissolved oxygen (DO) = 12…

A: Given- Initial DO=12 mg/L, Final DO=4 mg/L, 2% dilution factor=100/2, It is needed to find the BOD…

Q: An average wastewater flow of 20 000 m³/ day is to be treated by a clarifier with surface overflow…

A: Sedimentation involves one or more basins, called “clarifiers.” Clarifiers are relatively large open…

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: The wastewater contains 7.5 x 105 fecal CFU per liter. The permissible fecal coliform concentration…

A: Given: Initial coliform concentration, Co = 7.5 x 105 CFU/L Maximum permissible coliform…

Q: A drain carrying 5m³/s of wastewater with its BOD of 100mg/l joins a stream carrying 50 m³/s flow…

A: Given data: Qw=5 m3sQs=50 m3sBODw=100 mglBODs=5 mgl

Q: A wastewater is to be disinfected with 35 mg/Lof chlorine to obtain 99% kill of micro-organisms. The…

A:

Q: Wastewater is treated with a certain amount of chlorine to remove 97% of micro-organisms present in…

A: Given: Removal percentage = 97% Rate of kill for treatment, k = 0.21 min-1 Flow rate of wastewater,…

Q: An industrial process produces a by-product compound ‘X’ which exceeds the sewer use limit.…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A domestic wastewater with BOD5 of 205 mg/L is treated by a secondary treatment plant that removes…

A: Given:- BOD5= 205 mg/L, the Secondary Treatment Plant removes 85% of BOD. Initial Do (Doi) =9.2…

Q: 4.4.If an industrial plant is generating wastewater containing 350 mg/L of lysine [HO₂ CCH (NH2)…

A: Step 1: Step 2: Step 3: Step 4:

Q: A manual Bar Screen is installed at the beginning of the sewage inlet channel of a treatment plant…

A: The question has multiple sub-parts. As per guidelines, the first three sub-parts have been solved.…

Q: The wastewater contains 7.5 x 105 fecal CFU per liter. The permissible fecal coliform concentration…

A: Given: Initial coliform concentration, Co = 7.5 x 105 CFU/L Maximum permissible coliform…

Q: The discharge through a concrete pipe of 1 ft diameter and 3000 ft length is 1.0 cfs. What is the…

A:

Q: : The following waste water collection system is given below with the length of the channels, areas…

A:

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.