Question
In: Civil Engineering
A water treatment plant has three identical horizontal shaft flocculation tanks. Each tank is composed of...
A water treatment plant has three identical horizontal shaft flocculation tanks. Each tank is composed of three stages with size of 4 m depth, 14.1 m length and 15 m width. G value of each stage is 40 s-1, 30 s-1 and 20 s-1. Mean water temperature is 15°C (μ = 1.139×10-3). What are the power requirements for flocculation stages in a single flocculation tank. And Is the flocculation tank in an efficient way?
( Plant's average flow rate of 300,000 m3/d, Design criteria: G · t 104 ~ 105, Detention time 20~30 min )
Solutions
Ally Wells answered 1 month agoRelated Solutions
A water treatment plant is designed for a constant flow rate of 3 MGD. The flocculation...
A water treatment plant is designed for a constant flow rate of
3 MGD. The flocculation system consists of three tanks, each having
a water depth of 10 ft and an average hydraulic residence time
(HRT) of 30 min.
(a) Determine the dimension of each tank (i.e., width and
length).
(b) Determine whether the flow through velocity is
acceptable.
(c) The plant is planning to take one tank out of service for
maintenance. Determine the increase in power requirement...
Discuss in detail how coagulation and flocculation are performed at a drinking water treatment plant. Describe...
Discuss in detail how coagulation and flocculation are performed
at a drinking water treatment plant. Describe how the optimum
coagulant dose can be determined to treat fresh surface waters for
drinking water supply. For removal of flocs from drinking water,
when should settling basins be used and when should dissolved air
flotation be applied? Why are GAC and PAC used in treating drinking
water
A water treatment plant has 6 settling tanks that operate in parallel (the flow gets split...
A water treatment plant has 6 settling tanks that
operate in parallel (the flow gets split into six equal flow
streams), and each tank has a volume of 600m^3. If the flow to the
plant is 10mgd, what is the retention time in each of the settling
tanks? If, instead, the tanks operated in series (the entire flow
goes first through one tank, then the second, and so on), what
would be the retention time in each tank?
Two tanks each contain 100 gal of water and tank 2 initially has 50 lbs of...
Two tanks each contain 100 gal of water and tank 2 initially has
50 lbs of salt uniformly dissolved in it. An external flow brings
adds 5 gal/min to tank 1 with 5 lbs of salt in it. Tank 1 feeds
tank 2 at 10 gal/min, and tank 2 feeds back to tank 1 at 5 gal/min.
Finally, an exit stream leaves tank 2 at 5 gal/min.
1) Use Laplace transforms to solve the system of ODEs modeling
this system...
Briefly describe each of the 5 steps of water treatment Aeration Coagulation (flocculation) Sedimentation Filtration Disinfection
Briefly describe each of the 5 steps of water treatment
Aeration
Coagulation (flocculation)
Sedimentation
Filtration
Disinfection
In a waste-water treatment plant a 1.00x103 L tank with 3.00x10-2 M Na2CO3(aq) is mixed with...
In a waste-water treatment plant a 1.00x103 L tank
with 3.00x10-2 M
Na2CO3(aq) is mixed with a
2.00x103 L tank with of 6.00x10-3 M
Na2CO3(aq). Assume sodium carbonate
behaves as a strong electrolyte.
a) How many moles of sodium ions are
in the product?
b) What is the concentration (in M) of
sodium ions in the product?
The Iowa City Water Treatment Plant and the University of Iowa Water Treatment Plant remove calcium...
The Iowa City Water Treatment Plant and the University of Iowa
Water Treatment Plant remove calcium hardness (Ca2+) by
precipitating (making) CaCO3(s). If, after establishing equilibrium
with CaCO3(s), the dissolved Ca2+ concentration is 10 mg/L and the
pH is 10.5.
a. What is the CO32- concentration in mol/L? b. What is the
HCO3- concentration in mol/L? c. What is the alkalinity in mg/L as
CaCO3?
The Water Treatment Plant and the University Water Treatment Plant remove calcium hardness (Ca2+) by precipitating...
The Water Treatment Plant and the University Water Treatment
Plant remove calcium hardness (Ca2+) by precipitating (making)
CaCO3(s). If, after establishing equilibrium with CaCO3(s), the
dissolved Ca2+ concentration is 10 mg/L and the pH is 10.5. a. What
is the CO32- concentration in mol/L? b. What is the HCO3-
concentration in mol/L? c. What is the alkalinity in mg/L as
CaCO3?
Two tanks contain a mixture of water and alcohol with tank A contain- ing 500 L...
Two tanks contain a mixture of water and alcohol with tank A
contain- ing 500 L and tank B 1000L. Initially, the concentration
of alcohol in Tank A is 0% and that of tank B is 80%. Solution
leaves tank A into B at a rate of 15 liter/min and the solution in
tank B returns to A at a rate of 5 L/min while well mixed solution
also leaves the system at 10 liter/min through an outlet. A mixture...
Two tanks contain a mixture of water and alcohol with tank A contain- ing 500 L...
Two tanks contain a mixture of water and alcohol with tank A
contain- ing 500 L and tank B 1000L. Initially, the concentration
of alcohol in Tank A is 0% and that of tank B is 80%. Solution
leaves tank A into B at a rate of 15 liter/min and the solution in
tank B returns to A at a rate of 5 L/min while well mixed solution
also leaves the system at 10 liter/min through an outlet. A mixture...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- A potential difference of 3.60 V will be applied to a 33.00 m length of 18-gauge...
- Baur Company has 21,000 shares of $10 par value, 8% preferred stock and 500,000 shares of...
- Discuss in detail how budgeting relates to variance analysis.
- If 250 g of water is heated by 6 K during the experiment and the water-mass...
- What were some of the Maya’s architectural and mathematical contributions. Be specific. What was the black...
- SWOT (strengths, weaknesses, opportunities, and threats) analysis is a framework used to evaluate a company's competitive...
- What is the modified duration of an 5% bond with 15 years to maturity that is...
ADVERTISEMENT