1- What may be happen when the activated sludge system hydraulically overloaded or underloaded? What may...

1- What may be happen when the activated sludge system hydraulically overloaded or underloaded? What may be happen when the activated sludge system may be subjected to organic underloading or overloading?

2- What can be occur when the bar spacing is too small and too large? What are important for the operation and maintenance of screens?

3- What are the advantages and disadvantages of ground water and surface water sources?

Expert Solution

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Ally Wells answered 8 months ago

What is an activated sludge system and what are the processes that occur in the system?...

What is an activated sludge system and what are the processes that occur in the system? What is the role of "mixed liquor suspended solids"? (hint: draw the system diagram and think about what can be happening)

1-S0 in an activated sludge process represents _________________________ concentration. 2-X in an activated sludge process represents...

1-S0 in an activated sludge process represents _________________________ concentration. 2-X in an activated sludge process represents ___________________________ concentration. 3-Biomass present in the influent is a product of biomass concentration in the influent multiplied by ______________ ___________. 4-Hydraulic detention time is a ratio of ______________ and _________________. 5- ___________________ represents the portion of microorganisms discharged from the process.

what is the rate limiting element in activated sludge design?

draw a schematic diagram of an activated sludge system that includes a "selector". describe the function...

draw a schematic diagram of an activated sludge system that includes a "selector". describe the function of the "selector" and describe how this process configuration and associated operating strategy is different from a "conventional" activated sludge system.

A CSTR activated sludge system is being designed for the Fulton Fish Processing Plant. The flow...

A CSTR activated sludge system is being designed for the Fulton Fish Processing Plant. The flow is relatively small (0.25 mgd), but the wastewater is strong due to all of the fish waste (BOD5 = 4500 mg/L). Primary settling removes 20% of the BOD5. In order to discharge to the town sewer the BOD5 must be reduced to a concentration that is 95% of the influent. What is the Dimensions of the basin assuming a 3:1 L:W ratio. Also, what...

What happens with the degradation of substrates in activated sludge if you add a clarifier. The...

What happens with the degradation of substrates in activated sludge if you add a clarifier. The activated sludge retention time is 0.5 days and the sludge age is 2 days. Also, what if the sludge age is 4 days

An activated sludge system with recycle (CMFR) uses to treat primary effluent after sedimentation.Use the appropriate...

An activated sludge system with recycle (CMFR) uses to treat primary effluent after sedimentation.Use the appropriate kinetic coefficients for the influent water characteristics to CMFR. Influent Characteristics: Flow = 1000 m3/day; bsCOD= 192 g/m3; nbVSS= 30 g/m3; inert inorganics= 10 g/m3 Aeration Tank Data: MLVSS = 2500; g/m3; SRT or θc = 6-day Calculate: 1.- Fraction of Biomass in MLVSS 2.- Observed yield a) gVSS/ g bs COD b) gTSS/g bs COD 3.- Oxygen Requirement Kg/day

Why aeration is important for activated sludge process? What would be the effect on the DO...

Why aeration is important for activated sludge process? What would be the effect on the DO profile with time (provide a sketch) and BOD removal and sludge production if: Pumping more air than the required amount

What are the targets for the parasympathetic output? When the parasympathetic system is activated, what happens...

What are the targets for the parasympathetic output? When the parasympathetic system is activated, what happens to the heart? What are the targets for sympathetic output? When the sympathetic system is activated, what TWO things happen to the heart?

1. When placed in a GasPak system, what will happen to the following bacteria after incubation...

1. When placed in a GasPak system, what will happen to the following bacteria after incubation at 37C? a) Bacillus subtilis b) Clostridium sporogenes 2. a) A patient arrives at a clinic with a urinary tract infection caused by E. coli. A urine sample is collected and inoculated onto EMB agar. Describe the expected appearance of the growth on this media. b) A patient is experiencing all the symptoms of having a urinary tract infection. A urine sample is collected...

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