Calculate the diameter and depth of filters for the following data, if two trickling filters in series are designed to treat the wastewater: Influent rate = 4 MLD BOD of the influent = 200 mg/L Efficiency of BOD removal by the roughing filter is 50% Hydraulic loading rate (HLR) = 1.80 m3/m2.d Organic loading rate (OLR) = 0.2 kg/m3.d

Q: An activated sludge system is being used to treat 2000 m3/d of wastewater containing 250 mg/L BOD5.…

A: Given: Sewage flow  = 2000 m3/day BOD5 = 250 mg/l; Ks = 40 mg Kd = 0.01d-1; MLVSS = 2000mg/l μmax…

Q: 23. An activated sludge treatment plant treats 10,000 m³/day of sewage. The influent BOD is 175 mg/L…

A:

Q: A primary clarifer removes 35% of BOD5 and 55% of suspended solids from the incoming wastewater.…

A: Given that; BOD5 concentration=275 mg/LSuspended solid concentration=400 mg/LPlant processing waste…

Q: Assume that a large stream has a reoxygenation constant k1' of 0.4/day, a flow velocity of 5…

A: Given Data:k1= 0.4/dayFlow velocity= 5miles/hour=2.24m/sOxygen= 10mg/Loxygen demand=…

Q: Problem 9.1: A WTP is designed to treat 48,000 m3/day. For filtration 12 RSFS are used, each filter…

A: Given  Discharge Q=48000 m3/dayfilteration rate =160 m/day and backwash rate =864 m3/dayno. of rapid…

Q: Q3 (a) Describe briefly the main objective water quality and state the main parameters involved in…

A:

Q: b) Determine the concentration of the effiuent BOD, for the two-stage trickling filter described…

A: DESIGN FLOW = 0.0509m3/s influent BOD5=260 mg/l diameter of each filter = 24 m depth of each filter=…

Q: QUESTION: A city of 5000 persons is to be served by a low rate trickling filter with a synthetic…

A:

Q: Question: A wastewater with a BOD5 of 326 mg/L and a Total Suspended Solids (TSS) of 392 mg/ is sent…

A:

Q: •Given the following information for wastewater plant, the plant is an activated sludge system with…

A: Answer Flow rate Q = 60000 m3/d Volume of Aeration tank = 7500 m3  Efficiency of aeration tank = 85%…

Q: The sewage is flowing at the rate of 5 MLD from a sedimentation tank to a single standard rate…

A: given- sewage flow rate=5 MLDInitial BOD=180 mg/LOrganic loading rate=200 g/m3/daysurface loading…

Q: 300 mL of wastewater was collected, aerated and seeded with bacteria. The dissolved oxygen content…

A: Given:- The volume of the wastewater collected = 300 mL Initial dissolved oxygen content = 7.4 mg/L…

Q: Determine the size of a high rate trickling filter for the following data: BOD concentration in the…

A:

Q: (a) Design an oxidation pond for treating sewage from a hot climatic residential colony with 4000…

A: The quantity of sewage to be treated per day. = 4000 X 180 = 720,000 litres = 720 cu.m The BOD…

Q: A sedimentation tank of dimensions 33m x 12m x 6m is filtering wastewater at a flow rate of 0.3…

A:

Q: Design a low rate trickling filter to treat 6.0 MLD of sewage of BOD of 210 mg/l. The final effluent…

A: Question is based on waste water treatment.  BOD, sewage flow and final sewage effluent value are…

Q: The following data were reported on the operation of primary settling tank and activated sludge…

A:

Q: AWWTP effluent of 0.011 m^3 /s and a BOD5 of 590 mg/L discharges into a river. The river has flow of…

A:

Q: Determine the UBOD and reaction rate constant for the BOD values of a wastewater measured over a…

A: Solution- BOD3 = 150 mg/LBOD6 = 200 mg/LBODt = L(1-e-kt)L = ultimate BOD(∪BOD)BOD3 = 150 =…

Q: A wastewater that has TOC concentration of 200 mg/L is to be treated by a fixed-bed granular carbon…

A: concentration=200mg/l flow=227m3/d Ceff=20mg/TOC

Q: AWWTP effluent of 0.011 m^3 /s and a BOD5 of 590 mg/L discharges into a river. The river has flow of…

A:

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

A: Given- 35 mg/L chlorine99% micro-organisms to be killedNt=Noe-ktk=0.23 min-1It is needed to find out…

Q: The treated domestic sewage of a town is to be discharged in a natural stream with following data…

A: Given data,

Q: Determine the diameter of a trickling filter for a wastewater flowing at the rate of (13500/100)…

A: Wastewater flowing at the rate of (Q = 13500/100) gallons per minute.   Concentration for the…

Q: Problem 2.Assume that DLSUD lake is 100m² and its average height is 5ft. Wastewater that flows into…

A:

Q: A municipal wastewater treatment plant processes an average of 14,000 m3 / day. The peak flow is…

A: Surface overflow rate is defined as the ratio of the volume of the water applied in unit time per…

Q: An aerated lagoon wastewater treatment is to be designed for a municipal wastewater. The design…

A: It is required to determine the applied BOD to the lagoon. Si=Influent BOD51-Primary clarifier…

Q: Derive the Streeter-Phelps sag curve equations. What is the minimum oxygen level in the river and…

A: Solution  Oxygen sag analysis Oxygen deficit D= saturation DO-actual Do Saturation DO  0o C = 14.5 .…

Q: Determine the size (diameter and depth) of the secondary clarifier (s) in a municipal activated…

A:

Q: QUESTION: A city of 5000 persons is to be served by a low rate trickling filter with a synthetic…

A:

Q: Trickling filter is a fixed-bed biological reactor that operates under aerobic conditions. It is…

A:

Q: Ex: Design a digestion tank for the primary sludge with the help of following data : (i) Average…

A:

Q: Problem: 1. Design a facultative pond to treat (13500)gpm of sewage having (13500/20)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: Find the BOD of trickling filter effluent if the BOD of raw sewage is 250 mg/l with 125%…

A:

Q: Wastewater that has a volumetric flow rate of 0.4 m3 /s and an ultimate BOD of 25.0 mg/L is flowing…

A: wastewater that has a volumetric flow rate of 0.4 m3 /sultimate BOD of 25.0 mg/L flowing into a…

Q: Design an oxidation pond to treat waste water from a community of 10,000 people with a per capita…

A:

Q: A city of 5000 persons is to be served by a low rate trickling filter with a synthetic packing (K =…

A: BOD after ;primary sedimentation=S0=140 mg/L BOD after final sedimentation=St=20 mg/L Now…

Q: Calculate 1-day BOD and ultimate BOD for a wastewater whose 5- day 20 °C BOD is 737. The reaction…

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

Q: The specific gravity of particles in wastewater is 2.7 and the kinematic viscosity of water is…

A: Given: Specific gravity of particles, G = 2.7 Kinematic viscosity of water = 1.02 x 10-2 cm2/s…

Q: An existing single-stage rock trickling filter treats a wastewater flow of 3785 m/d ("raw" influent…

A:

Q: Q1: Choose the correct answer for the following: 1- While selecting the location of an intake for…

A:

Q: Assume that DLSUD lake is 100m2 and its average height is 5ft. Wastewater that flows into the lake…

A: Given :

Q: A wastewater sample has 7.5 x 105 CFU per liter. The allowable fecal coli form concentration is 3500…

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

Q: 6. After your flash mix the water was sent to a clarification basin that was 24 feet in diameter and…

A: To find:-detention tiefiltration ratefiltration rate after breakthrough failure

Q: In rapid sand filters, the flow rate capacity is 0.3 m3/s and the filtration rate is 100 L/m2.min.…

A: A rapid gravity filter is basically a bed of sand supported in a bed of gravel embedded in which…

Q: Determine the concentration of total solids(TS), total dissolved solids (TDS), total suspended…

A:

Q: Assume that taal lake is 100m2 and its average height is 5ft. Wastewater that flows into the lake…

A: Given Data : area of taal lake A= 100 m2  actual depth = 5 ft

Q: A house with seven (7) occupants located in a sub urban village used a septic tank to treat all…

A: Given, Number of persons, P = 7  Waste generation rate, q = 160L/person/day Ambient temperature, T…

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

A: Given: Textile plant: BOD = 1500 mg/l SS = 2000 mg/l Nitrogen = 30 mg/l Phosphorous = 0   Domestic:…

Q: A wastewater sample has 7.5 x 105 CFU per liter. The allowable fecal coli form concentration is 3500…

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

Integrated Solid Waste Management

Integrated Solid Waste Management (ISWM) is a thorough waste suppression, compost, removal and recycling Program. An effective ISWM system considers how to suppress, manage and recycle solid waste in a manner that is most efficiently to protect human health and the surrounding. ISWM system requires evaluation of public wants and demands and then selecting and merging the most effective waste management activities for the proposed demands. The main ISWM activities for solid waste management are Waste prevention, Recycling and Composting, and Combustion and Removal and waste collection in a properly planned, constructed, managed and mitigated landfill areas. Each of these requires careful designing, financing, accumulation, and delivery of activities.