The influent suspended solids concentration to a primary settling (clarifier) tank is 300 mg/L. The average flow rate is 0.037 m3/s. If the suspended solids removal efficiency is 65 percent, how many kilograms of suspended solids are removed in the primary settling tank each day?

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Q: 1:) A circular coagulation basin has a diameter of 2.5 m and it's depth equal to 1.60 m. If me…

A: diameter = 2.5 mdepth = 1.6 mGt = 27000t = 30 s = 1.00310-3 kg /m.salum = 50 mg/LFind: (a) The…

Q: 10.13 m3/s and a BOD of its own equal to 5.5 mg/l. The deoxygenation constant, Kd, is…

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Q: (b) Consider the following data for a completely mixed activated sludge system to treat wastewater…

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Q: Raw primary sludge at a solids concentration of 4% is mixed with waste activated sludge at a solids…

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Q: Problem 1. A wastewater sample is examined for its solid contents. The ionic strength (μ) of…

A: (a). The concentration of organic solids in the wastewater sample. Since 30% of TDS is organic, the…

Q: discuss the inter-relationship of control a. factors in activated sludge process. b. Determine the…

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Q: SS=4,000 mg/L raw wastewater has the following characteristics: w=12 MGD Os=220 mg/L pended solids…

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Q: A settling tank (32 m long, 2.1 m across and 1.6 m deep) is used to clarify water containing…

A: width of tank=2.1m=210cmdepth of tank=1.6m=160cmdiameter of particles = 120 μm = 0.12 mm = 0.012…

Q: oluble BOD5 = 80 mg/L Assume that the BOD5 of the suspended solids may be estimated as equal to 50%…

A: According to given data  A small town has been directed to upgrade its primary wastewater treatment…

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

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Q: The BOD just downstream from a wastewater pipe is 12.9 mg/L and the DO (dissolved oxygen) is 8.6…

A: Given, BOD just downstream from wastewater pipe, L = 12.9mg/l DO at just downstream from wastewater…

Q: Two wastewater streams A and B, having an identical ultimate BOD are getting mixed to form the…

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Q: A mixed liquor sample form an activated sludge plant was settled in a one-litre measuring cylinder…

A: To find out the sludge volume idex of the given sample.

Q: Given below is the data related to activated sludge process: Plant inflow = 8800 m3/day Recycle flow…

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Q: How many kg of bleaching power is needed per day to chlorinate 4 MLD fwater so that, after 40…

A: Given- Flow f = 4 MLD, Residual chlorine=0.25 mg/L, Chlorine demand=1.25 mg/L, % of available…

Q: An activated sludge system operates at a flow rate (Q) of 400 m³/day (and an HRT. 0.129 day) with an…

A: Given:- Q=400 m3/day HRT=0.129day BOD=300mg/L Ks=200 mg/L To find:- mxed liqour concentration…

Q: Q3 - A WSP system is going to be designed for a new town that receives 10000+(Y×1000) m/d with…

A: i}  For effective removal of BOD and upto 99% pathogens (E.Colli}  we can arrange on design…

Q: Find the time and distance downstream at whoch the oxyfen deficit is a macimum b. Find the minimum…

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Q: A surface water treatment plant operates round the clock with a flow rate of 35 m³/min. The water…

A: Given- Discharge- Q=35 m3/min, Alum dose=25 mg/L, It is needed to find the alum quantity required…

Q: Given: Flow rate of water = 500 L/min Suspended solids concentration in influent water = 100 mg/L…

A: As per guidelines, only first question is been solved.

Q: slurry of sediment dredged from a reservoir consists of 14% solids by mass. The slurry also has a…

A: Slurry: A slurry is a mixture of suspended solids in water in the reservoir. The amount of slurry in…

Q: A conventional activated sludge plant is designed to treat 28000 kiloliters per day at a settled…

A: Given data- Discharge in the conventional activated sludge plant- Q=28000 kilolitres per day,…

Q: A conventional activated sludge plant is designed to treat 28000 kiloliters per day at a settled…

A: Given data- A conventional activated sludge plant- Discharge Q=28000 kilolitres per day, BOD Si =220…

Q: A/Determine the dimensions of settling tank to treat 1000m/day of water with particles of 0.02mm and…

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Q: sing alum at 23 mg/litre. No o ncentration is 37 mg/l. The efm and specific gravity of sludge is =

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Q: A settling tank has a surface area of 200 m? and inflow rate of 30 m/day. What is the percentage of…

A: Given Surface area of setting tank, As=200m2 Inflow rate, Q ; Q=30 m3/d=3024×60×60m3/sQ=3.47×10-4…

Q: Hydraulic conductivity K= 100 ft/day, Aquifer thickness B = 50ft, Hydraulic gradient J = 0.001 Plume…

A: Co-efficient of Permeability , K=100ft/d Aquifer Thickness , B=50 ft Hydraulic Gradient , j=0.001

Q: Using the data presented below, compute the total amount of sludge produced daily in the primary…

A: please find attached solution below.

Q: Alum at a rate of 20 mg/l is added to an incoming discharge of 0.5 m3/s which carries 250 mg/1 of…

A: 1. Alum added at a rate of 20 mg/l.2. Incoming discharge: 0.5 m³/s3. Incoming discharge carries 250…

Q: The PEF, Inc. firm desires to utilize a complete-mix activated-sludge system with recycle to treat…

A: Given, MLVSS (X) = 2500 mg/L Influent soluble BOD5 (So) = 292 mg/L θc = 7.24 days   Effluent BOD5…

Q: Direction: An activated sludge system (sketched below) is operating at equilibrium with the…

A: An activated sludge system- Flow rate Q=500 m3/hr, BOD=150 mg/L, Effluent BOD=10 mg/L, MLSS=2000…

Q: There is sedimentation tank that is used to remove suspended solid particles from an incoming…

A: Given Discharge= 150m3/hr surface area= 15m2

Q: A completely mixed activated sludge process operating at equilibrium is designed to treat 300 MLD of…

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Q: 1. The influent suspended solids concentration to a primary settling tank is 435 mg/L. The average…

A: A primary settling tank (PST)-Influent suspended solids concentrations MLSS (Xt)=435 mg/L=435…

Q: How to determine the needed surface area of the secondary clarifier tank given that the flow is…

A: Given, Flow rate, Q = 40,000 m3 /day Recycling ratio = 0.5 Solid concentration = 13,000 mg/L MLSS =…

Q: If the filtration equation for a suspension of solids at a constant pressure of 38.7 psia is:…

A: At constant presssure, P1 = 38.7 psiaThe filtration equation of suspension solids isTo determine the…

Q: A settling chamber is to be used to collect particles with a density of 1200 kg/m3 from an air…

A: A settling chamber is to be used to collect particles with a density of 1200 kg/m3 from an air…

Q: P to a secondary plant that The town of Gatesville has been directed to upgrade its primary" can…

A: Flow = 0.150m3.s-1BOD5 = 84.0mg.L-1 =100 mg.L-1Kd = 0.050day-1

Q: 1. The lab placed a sample in an evaporation dish and evaporated it at 105°C finding that the dish…

A: Given, Design flow, Q = 20 mgd or 20 x 106 gallons Volume of sample, V = 90 ml or 0.09 Liter   NOTE…

Q: Q2: A column analysis for an activated sludge su MLSS Conc (mg/l) Settling velocity m/h 1000 2.8…

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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.