A secondary treatment using a mixed water activated sludge system, have the flow rate of 10000m^3/day of municipal wastewater. BOD after primary clarification is 150mg/L.It is desired to not reach 5mg/L of soluble BOD in effluent. The kinetic values of the system having X=0.5kg/kg and Kd=0.05d^-1.MLVSS concentration in the secondary treatment is 3000 mg/L, the concentration in return sludge is 10000mg/L. Calculate the mass of solid that must be wasted each day for each of the selected sludge.

Q: . Design and activated sludge process to treat 10MGD of domestic sewage having a BODs of 210…

A: Data given-Q0 =10 MGD   = 37854.12 m3/d       SS =10 mg/lSo =210 mg/l      Xt =10,000 mg/l     Qc =…

Q: feeding continuously 6 g/L stock tracer soluti mine the theoretical tracer concentration in the he…

A: According to given data CFSTR Volume= 45 m3Constant flow in reactor= m3/d 6g/L stock tracer solution…

Q: Q1: Design an activated sludge process to treat a wastewater of 15000 m³/day with a BODs of 180 mg/l…

A:

Q: The design engineer proposes a fully mixed aeration tank (reactor) with a volume of 25 cubic meters.…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: For a spiral membrane filtration system, the membrane was fabricated by adding additional shims to…

A: step 1-

Q: The sludge age 1. Is a measure of the time taken for sewage to stay in the bioreactor 2. Is one of…

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

Q: A sewage treatment plant discharges 4 ML/d of effluent with 20.17 mg/L BOD5 into a stream. The…

A:

Q: In an activated sludge treatment system, the BOD concentration decays according to first order…

A:

Q: P.C. V, X, S S.C. Qs Xg, Sp Act. Sludge Basin RAS Q, S, Xp WAS Qw, Sun Xw

A: 1. V=5222 m3   2. Qw=121.8 m3/day   3. Qe=25798.2 m3/day   4. t=4.8 hours

Q: The sludge produced from the aeration tank of the activated sludge process has a solid content of 2%…

A: This question is related to the Environment Engineering from Civil Engineering.

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

A:

Q: A solids analysis is conducted on a domestic wastewater. The followin; the 'dry sample' is obtained…

A: The different types of solids or impurities in the water are  Suspended solids The solids whose…

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: If a wastewater has a soluble orthophosphate concentration of 6.00 mg/L as P (PO:-P), what…

A: Atomic wt. Of  Al=27 S=32 O=16 Phosphorus, P=30 Here, 1 mol of Al2(SO4)3 reacts with 2 mol of P to…

Q: Plot Xa and S/Sº vs Theta for So= 2000, 200, 20, and 2.

A: Given that :-Required that :-

Q: Distinguish the different role of primary and secondary treatment of wastewater.

A: The treatment of wastewater is an important process that is required to be performed before the…

Q: Choose the process that will not disturb the following equilibrium. Co(g) + H2O(g) =CO2(g) + H2(g) O…

A: 1) Answer Option c Lechatelier's principle :- It states that, when a system at equilibrium is…

Q: 2. The suspended solids content is determined earned by fittering a portion of sample them a…

A:

Q: A secondary clarifier handles a total flow of 9600 m³/d from the aeration tank of a conventional…

A:

Q: A secondary treatment using a mixed water activated sludge system, have the flow rate of…

A: simple activated sludge process diagram and their simple formula

Q: (a) What is the maximum contaminant concentration that is expected at a location 2 km downstream of…

A: a) - Discharge(Q) = 2m3/s B= 5m    D= 1m  Velocity = QB*D V= 25*1 = 0.4m/s Time taken to travel…

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: 12.60 The aeration tank for a completely mixed aeration process is being sized for a design waste-…

A: The objective of the question is to calculate the volume of the aeration tank, aeration period, food…

Q: The saturation DO concentration of a stream is 9.1 mg/L. At a sewage outfall, the DO of the stream…

A:

Q: The surface area

A: Given data, Total flow of a secondary clarifier is,Q= 9600 m3/d Concetration of solids in the flow…

Q: Q2) A waste of 600 m*hr flow rate with an ultimate BODZ° = 140 mg/l is to be treated in an activated…

A: Given data: Kd=0.055  day-1Q=600 m3/hrθc=10 daysS=20 mg/lXU=15000 mg/lultimate Bod (SU)=140…

Q: A bio-tower composed of a modular plastic medium of 6 m is used as secondary treatment component in…

A: A bio-tower composed of a modular plastic medium of 6 m is used as a secondary treatment component…

Q: The secondary stage of a wastewater treatment plant using the activated sludge process in a…

A: The secondary stage consists of Aeration, ASP, trickling filters, Rotating biological,Rotating…

Q: A plug flow and a CFSTR biological reactor are both operating with an influent substrate…

A: Answer We need to calculate Volume of both the reactor first Volume of plug flow reactor is given by…

Q: A secondary treatment using a mixed water activated sludge system, having the flow rate of…

A:

Q: A treatment plant treats water at an average daily flowrate of 2.7 m3/s. The water is chlorinated…

A: Given data,average daily flowrate of 2.7 m3/sChlorine concentration = 3 mg/LChlorine decays at a…

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

A:

Q: An anaerobic digester is operated with a hydraulic retention time (HRT) of 25 d and a flow rate of…

A:

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.