Question
e) Estimate the size of equalization tank for the wastewater treatment plant that can hold the...
e) Estimate the size of equalization tank for the wastewater treatment plant that can hold the raw sewage for 4 hours. Take the depth as 3 m. What would be the size of the smallest particle size with specific gravity 2.0 that can be 100% removed by this tank? Assume that the water temperature is 20°C
Homework Answers
Answer #1
I have considered the average value of discharge to find the dimension of tank.
Not the answer you're looking for?
Similar Questions
A rectangular horizontal-flow sedimentation basin in a conventional water treatment plant has been designed to treat...
A rectangular horizontal-flow sedimentation basin in a
conventional water treatment plant has been designed to treat a
flow of 50,000 m3 /day. It has a length = 80 m, width = 20 m, and
depth = 3.6 m. For this problem, assume temperature = 20 °C
(density of water = 103 kg/m3 and viscosity = 10-3 kg/m·s) and
laminar flow.
a. What is the hydraulic detention time? Does this meet the
typical criteria for this type of sedimentation basin?
b....
Design high-rate sedimentation tank(s) for a water treatment plant using plate settlers. 1. Design the rectangular...
Design high-rate sedimentation tank(s) for a water treatment
plant using plate settlers.
1. Design the rectangular sedimentation tank(s), including
launders and sludge collection mechanism.
2. Design the countercurrent plate settlers, including length,
angle, and distance between plates (to achieve 100% removal of the
target particle described below).
3. Draw a cross-section of the sedimentation tank with
dimensions, indicating the concrete walls, main pipes, launders,
plate settlers.
4. Quantify/discuss the improvement(s) that may result from
installing the plate settlers.
Inputs:
Design...
A trickling filter plant consists of a primary sedimentation tank, a trickling filter 21 m in...
A trickling filter plant consists of a primary sedimentation
tank, a trickling filter 21 m in diameter and 2 m depth, and a
secondary sedimentation tank. The primary effluent BOD is 100 mg/L,
the plant final effluent is 25 mg/L and the recirculation flow is
0.5 of the wastewater flow entering the plant. The temperature of
the water is 15oC. The constants for the random plastic
media are n = 0.5 and k20 = 0.055
min-1. Calculate the hydraulic loading.
Problem #3: Biochemical Oxygen Demand (BOD) and Stream Quality A wastewater treatment plant designed for a...
Problem #3: Biochemical Oxygen Demand (BOD) and Stream
Quality
A wastewater
treatment plant designed for a community of 45,000 people has a
flow of 100 gal/person/day and a BOD5 loading of 0.2
lb/person/day. The upstream characteristics of the receiving waters
are:
stream flow rate =
20 cfs and BOD5 = 2 mg/L
The water quality
standards require the in-stream BOD5 to be less than 7
mg/L in this stretch of the river.
The minimum BOD
removal efficiency that the treatment...
The town of Camp Verde has been directed to upgrade its primary Waste Water Treatment Plant...
The town of Camp Verde has been directed to upgrade its primary
Waste Water Treatment Plant (WWTP) to a secondary plant that can
meet an effluent standard of 25 mg/L BOD5 and 30 mg/L suspended
solids. They have selected a completely mixed activated sludge
system for the upgrade. The existing primary treatment plant has a
flow rate of 0.029 m3/s. The effluent from the primary tank has a
BOD5 of 240 mg/L. Using the following assumptions, estimate the
required volume...
You have been retained to design a wastewater treatment plant using a conventional activated sludge process...
You have been retained to design a wastewater treatment plant using
a conventional activated sludge process for a town of 40,000
people. The industrial flow contribution to the sewer system is
300,000 gallons per day. Effluent discharge standards require
effluent BOD5 and total suspended solids concentration of <10
mg/l.
Assume the following design criteria are applicable:
Domestic sewage flow = 100 gal/cap/day (including I/I)
BOD loading = 0.18 lbs/cap/day
TSS loading = 0.20 lbs/cap/day
BOD removal in primary = 33%...
When is a hypothesis considered scientific? a. when it is based on something other than observation...
When is a hypothesis considered scientific?
a. when it is based on something other than observation
b. when it can be tested and is refutable
c. when it relies on anecdotal evidence
d. when it relies on mystical explanations
e. All hypotheses are considered scientific until experiments
determine otherwise.
3.
Of the following, which is the earliest step in the scientific
process?
a. generating a hypothesis
b. analyzing data
c. conducting an experiment
d. drawing a conclusion
e. developing a...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 8 minutes ago
asked 17 minutes ago
asked 23 minutes ago
asked 36 minutes ago
asked 37 minutes ago
asked 39 minutes ago
asked 51 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago