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1. A lake with constant volume 10 x 106 m3 is fed by a pollution-free stream...
A lake with volume 10^3 m^3 is fed by a pollution-free stream with flow rate 5...
A lake with volume 10^3 m^3 is fed by a pollution-free stream with flow rate 5 m^3/min. A factory dumps 0.1 m^3/s of a non-conservative waste with concentration 100 mg/L into the lake. The pollutant has a reaction rate coefficient K of 0.2/day. Assuming the pollutant is well mixed in the lake; find the steady-state concentration of pollutant in lake.
A lagoon with volume 1,000 m3 has been receiving a steady flow of a nonconservative pollutant...
A lagoon with volume 1,000 m3 has been receiving a steady flow of a nonconservative pollutant with reaction rate of .20/day at a rate of 100 m3/day for a long enough time to assume that steady-state conditions apply. The waste entering the lagoon has a concentration of 100 mg/L. Assume completely mixed conditions. If the input waste concentration suddenly decreased to 10mg/L, what would the concentration in the effluent be 10 days later?
A lake with the volume of 106 m3 receives 10 m3/s of inflow containing 0.1 mol/m3...
A lake with the volume of 106 m3 receives 10 m3/s of inflow containing 0.1 mol/m3 of a chemical. The chemical reacts with a first-order rate constant of 0.02 h-1. The outflow from the lake is also 10 m3/s. Assume there was no chemical in the lake at the beginning. What will be the concentration changing rate of this chemical in this lake? Assume the concentration of such chemical at certain time is x mol/m3 in the lake.
Calculate the steady-state flow rate, Qe in m3/day, and concentration of lake effluent, ce in mg/L,...
Calculate the steady-state flow rate, Qe in m3/day, and concentration of lake effluent, ce in mg/L, for the following system. The lake is well-mixed with two streams that enter the lake. Evaporation takes place from the lake but because c is not volatile none of it evaporates. QvAP 200 m2/day CEVA,-0 mg/L Q1-8 m3/min 1 4 mg/L QE CE Lake Q2-12 L/s c2-50 mg/L
11. A lagoon with constant volume of 450,000 m' is being used to treat two separate...
11. A lagoon with constant volume of 450,000 m' is being used to treat two separate waste streams. One has a flow rate of 5.0 m/s and a waste concentration of 500 mg/L. The other has a flow rate of 1 m/s and a waste concentration of 1500mg/L. The pollutant has a reaction rate coefficient (k) of 0.3/day. Assuming the pollutant is well mixed in the lagoon, find the steady-state concentration of pollutant in the lagoon. (10 Points)
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a flow rate of 3 MG...
problem 1 and 2!
please and thanks!
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a flow rate of 3 MGD wastewater. The wastewater contains 220 mg/L of BOD with a rate coefficient of 0.4/d. The effluent target is 20 mg/L. Assume steady state. 2. For the same conditions, what would the size of a plug flow reactor be (in m2)?
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a...
1. In 1970, the total phosphorus (TP) load to Lake Erie was 18.150 tonnes/year (where tonnes...
1. In 1970, the total phosphorus (TP) load to Lake Erie was 18.150 tonnes/year (where tonnes or metric ton = 1,000 kg). The surface area, volume, and outflow from Lake Erie are given as 25.2 x 10 m² 468 x 10 m, and 182 x 10 m yr, respectively. Based on previous evaluations, the total phosphorus is removed from the lake with an apparent settling rate of 16 m/yr. a. Draw a diagram and write the mass balance equation for...
reply ma as soon as possible 120 points total Due: October 23, 2019 Budget your time...
reply ma as soon as possible
120 points total Due: October 23, 2019 Budget your time carefully TRUE OR FALSE (45 points - 3 points cach): Mark whether the statements as written are "true" or "false". If the statement is false, make minor changes to the statement so that the statement is true. The primary adverse health effect resulting from the disposal of mercury wastes into Minamata Bay was dysentery The flow regime in horizontal velocity grit chambers approaches continuous...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
Based on the document below, 1. Describe the hypothesis Chaudhuri et al ids attempting to evaluate;...
Based on the document below,
1. Describe the hypothesis Chaudhuri et al ids attempting to
evaluate; in other words, what is the goal of this paper? Why is he
writing it?
2. Does the data presented in the paper support the hypothesis
stated in the introduction? Explain.
3.According to Chaudhuri, what is the potential role of thew
alkaline phosphatase in the cleanup of industrial waste.
CHAUDHURI et al: KINETIC BEHAVIOUR OF CALF INTESTINAL ALP WITH PNPP 8.5, 9, 9.5, 10,...
A lake with volume 10^3 m^3 is fed by a pollution-free stream with flow rate 5 m^3/min. A factory dumps 0.1 m^3/s of a non-conservative waste with concentration 100 mg/L into the lake. The pollutant has a reaction rate coefficient K of 0.2/day. Assuming the pollutant is well mixed in the lake; find the steady-state concentration of pollutant in lake.
Calculate the steady-state flow rate, Qe in m3/day, and concentration of lake effluent, ce in mg/L, for the following system. The lake is well-mixed with two streams that enter the lake. Evaporation takes place from the lake but because c is not volatile none of it evaporates. QvAP 200 m2/day CEVA,-0 mg/L Q1-8 m3/min 1 4 mg/L QE CE Lake Q2-12 L/s c2-50 mg/L
11. A lagoon with constant volume of 450,000 m' is being used to treat two separate waste streams. One has a flow rate of 5.0 m/s and a waste concentration of 500 mg/L. The other has a flow rate of 1 m/s and a waste concentration of 1500mg/L. The pollutant has a reaction rate coefficient (k) of 0.3/day. Assuming the pollutant is well mixed in the lagoon, find the steady-state concentration of pollutant in the lagoon. (10 Points)
problem 1 and 2!
please and thanks!
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a flow rate of 3 MGD wastewater. The wastewater contains 220 mg/L of BOD with a rate coefficient of 0.4/d. The effluent target is 20 mg/L. Assume steady state. 2. For the same conditions, what would the size of a plug flow reactor be (in m2)?
1. Calculate the volume of a completely mixed reactor needed (in m3)lto treat a...
1. In 1970, the total phosphorus (TP) load to Lake Erie was 18.150 tonnes/year (where tonnes or metric ton = 1,000 kg). The surface area, volume, and outflow from Lake Erie are given as 25.2 x 10 m² 468 x 10 m, and 182 x 10 m yr, respectively. Based on previous evaluations, the total phosphorus is removed from the lake with an apparent settling rate of 16 m/yr. a. Draw a diagram and write the mass balance equation for...
reply ma as soon as possible
120 points total Due: October 23, 2019 Budget your time carefully TRUE OR FALSE (45 points - 3 points cach): Mark whether the statements as written are "true" or "false". If the statement is false, make minor changes to the statement so that the statement is true. The primary adverse health effect resulting from the disposal of mercury wastes into Minamata Bay was dysentery The flow regime in horizontal velocity grit chambers approaches continuous...
Based on the document below,
1. Describe the hypothesis Chaudhuri et al ids attempting to
evaluate; in other words, what is the goal of this paper? Why is he
writing it?
2. Does the data presented in the paper support the hypothesis
stated in the introduction? Explain.
3.According to Chaudhuri, what is the potential role of thew
alkaline phosphatase in the cleanup of industrial waste.
CHAUDHURI et al: KINETIC BEHAVIOUR OF CALF INTESTINAL ALP WITH PNPP 8.5, 9, 9.5, 10,...
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