+1-415-670-9189
info@expertsmind.com
What is the hydraulic residence time of the reactor
Course:- Civil Engineering
Reference No.:- EM13318812




Assignment Help
Expertsmind Rated 4.9 / 5 based on 47215 reviews.
Review Site
Assignment Help >> Civil Engineering

a small community wishes to construct an activated sludge wastewater treatment plant to treat their wastewater. the wastewater from the community has an average flow rate of 0.0022 m^3/s (190 m^3/day) and an influent substrate concentration of 250 mg/L as COD and all of them are essentially soluble. for sizing the syst em, the mean cell residence time is selected to be 5 days. the reactoer kinetic constants are u max= 2.4 d^-1 (1/day), Ks=75 mg/L as COD, Y=0.4 VSS/g COD and Kd=0.096 d^-1(1/day)

the design engineer propsed a fully mixed tank with a volume of 25 m^3. you have asked to evaluate this design and the follow parameters have to be calculated.

1. what is the hydraulic residence time of this reactor?

2. what is the COD removal efficiency of this system?

3. what is the biomass concentration in aeration tank?

4. what is the F/M ratio?

5. what is the sludge production rate?




Put your comment
 
Minimize


Ask Question & Get Answers from Experts
Browse some more (Civil Engineering) Materials
The bar AB has an axial rigidity of EA. The bar is rigidly attached at A while there is a gap at B. A load P acts at point C and has a large enough magnitude to close the ga
If the farmer irrigates continuously, what will be the steady state concentration of selenium in the stream downstream from the farm (after the irrigation run-off returns to t
A cutting 9 m deep is to be excavated in saturated clay of unit weight 19 kN/m3. The design shear strength parameters are cu = 30 kN/ m2 and fu = 0. A hard stratum underlies
A rectangular concrete channel 10 m wide has a bed slope of 1 m/km and surface roughness equivalent to a Manning n of 0.02. It is proposed to use a hump on the channel bed for
A water storage tank located on a larege dairy farm has a storage capacity of 0.1 ML. The average rate of water consumption from this tank is 6.25 kL per day, every day. The
Calculate the Air flow required in CFM to transfer 5,396 BTU/Hour in an HVAC duct given that the temperature difference (Delta-T) between the room and the supply air is 21 D
Three primary clarifiers operating in parallel is the layout chosen. If the clarifiers have an efficiency of 60% for removing influent total suspended solids and if the sol
The power plant in the previous problem is augmented with a natural gas burner to superheat the water to 600 F before entering the turbine. Find the cycle efficiency with th