Question
In: Civil Engineering
Please show all work and formulas used. Thanks! The following data are given for an activated...
Please show all work and formulas used. Thanks!
The following data are given for an activated sludge process:
Q = 5 MGD
BOD5 (influent) = 250 mg/L (soluble)
BOD5 (effluent) = 20 mg/L (soluble)
MCRT = 10 days
MLSS in the aeration tank = 2500 mg/L
Concentration of SS in the recycle line = 10,000 mg/L
Concentration of SS in the effluent = 30 mg/L (70% biodegradable)
BOD5/BODu = 0.75, No nutrient limitations.
Yield co-efficient, Y = 0.65
Endogenouse decay coefficient, kd = 0.06/day
Determine:
(a) Find soluble BOD5 (in mg/L) in the effluent, BOD5 treatment efficiency (in %) and overall efficiency (in %).
(b) Find hydraulic detention time (in hours) and the volume of tank (in MG).
(c) Yobs and biomass production (in lb VSS/day)
(d) Qw (in MGD) when the wasting from the AT and from recycle line.
(e) Recirculation ratio
(f) Find Specific Utilization rate (U) and food to microorganism (F/M) ratio
(g) Calculate volumetric loading rate (lb BOD5 /1000 ft3)
Solutions
Ally Wells answered 5 months agoRelated Solutions
Please show all calculations and formulas. If using Escel, please show data/formulas. practice 10: Show the...
Please show all calculations and formulas. If using Escel,
please show data/formulas.
practice 10:
Show the effects of these transactions on the balance sheet
equity accounts. Presently the stock price is $20 per share. You
started with: common stock ($1 par value) $10,000, capital surplus
$100,000, retained earnings $200,000:
a. 12% stock dividend
b. repurchased 1,000 shares (repurchase price is PV of 20)
Please show all work and formulas Please use the following information to answer this question. State ...
Please show all work and formulas
Please use the following information to answer this
question.
State
Probability
A
B
C
Boom
.3
-10%
5%
0%
Normal
.4
5
3
2
Bust
.3
10
-5
2
Find the expected return and variance of the portfolio if an
investor spent $5000 on A, $8000 on B and $7000 on C.
Please show all work and formulas Please use the following information to answer this question. State ...
Please show all work and formulas
Please use the following information to answer this
question.
State
Probability
A
B
C
Boom
.3
-10%
5%
0%
Normal
.4
5
3
2
Bust
.3
10
-5
2
Find the expected return and variance of the portfolio if an
investor spent $5000 on A, $8000 on B and $7000 on C.
Show all work/formulas used: 1) Based on the following data: Genotype: AA Aa aa Relative fitness:...
Show all work/formulas used:
1) Based on the following data:
Genotype: AA Aa aa
Relative fitness: WAA= 1 WAa= 1 Waa= 0.5
Number of young: 100 100 800
1a) Estimate the frequency of 'aa' young individuals after 5 and
10 generations
2b) Show (graph) how the frequency of the alleles 'A' and 'a'
change for 20 generations
2) If the initial Frequency of a lethal recessive allele is 10%,
how many generations are needed to reduce it to 5%? (assume...
PLEASE SHOW ALL WORK IN EXCEL!!!!!!! SHOW CALCULATIONS / FORMULAS IN EXCEL!!!!!!!! Voters arrive at a...
PLEASE SHOW ALL WORK IN EXCEL!!!!!!!
SHOW CALCULATIONS / FORMULAS IN
EXCEL!!!!!!!!
Voters arrive at a polling station at an average of 4 per minute
(Poisson) where the service rate is 50 per hour (Poisson).
a. What is the average number of voters in the system with 5
voter booths? (10 pts)
b. What is the minimum number of voting booths needed to keep
the average time in the system under three minutes? (10 pts)
PLEASE SHOW ALL WORK IN...
Please answer the problem below for all parts. Please show all work and write clearly. Thanks....
Please answer the problem below for all parts. Please show all
work and write clearly. Thanks.
(Apply total probability and Bayes’ rules)
A large industrial firm uses three
local motels to provide overnight accommodations for its clients.
From past experience it is known that 22% of the clients are
assigned rooms at the Ramada Inn, 50% at the Sheraton, and 28% at
the Lakeview Motor Lodge. If the plumbing is faulty in 5% of the
rooms at the Ramada Inn,...
Please use excel and show all work and formulas. (I will give your work a like...
Please use excel and show all work and formulas. (I will give
your work a like if you do this)
Size (1000s sq. ft)
Selling Price ($1000s)
1.26
117.5
3.02
299.9
1.99
139.0
0.91
45.6
1.87
129.9
2.63
274.9
2.60
259.9
2.27
177.0
2.30
175.0
2.08
189.9
1.12
95.0
1.38
82.1
1.80
169.0
1.57
96.5
1.45
114.9
What are the p-values of the t test (for the
slope estimate) and F test?
What is the coefficient of determination?
What is...
14. PLEASE SHOW EXCEL WORK THANKS! Based on the following financial data, calculate the ratios requested....
14. PLEASE SHOW EXCEL WORK THANKS!
Based on the following financial data, calculate the ratios
requested. (Round your answers to 4 decimal
places.)
Liabilities
$
7,800
Net worth
$
58,000
Liquid assets
$
4,600
Current liabilities
$
1,300
Monthly credit payments
$
640
Take-home pay
$
2,575
Monthly savings
$
130
Gross income
$
2,850
a.
Debt ratio
b.
Current ratio
c.
Debt-payments ratio
d.
Savings ratio
Show your work, the formulas used, and the substitutions to answer the questions about the following...
Show your work, the formulas used, and the substitutions to
answer the questions about the following data:
Can your high school GPA predict your college GPA? To try to
answer this, the following data were collected:
High School GPA:
1.72 3.51
2.45 2.85
2.84 3.46
1.97
3.47
College
GPA:
2.61 3.66
3.25 3.23
3.46 3.07
2.88
3.16
Create a scatter plot of the data
Find the equation of the regression line
Calculate the correlation coefficient.
Is there a significant correlation...
Show all work in Excel With formulas used in cells Question Set 2. A manufacturing operation...
Show all work in Excel With formulas used in
cells
Question Set 2.
A manufacturing operation must periodically purchase bulk
quantities of washers. The washers are purchased in boxes of 1000
and are consumed at a constant rate. The operation expects to
purchase 20,000 boxes over the coming year. Each box costs $120,
the annual holding cost per box is $15, and the cost of placing an
order is $120 (regardless of the quantity ordered). For the
following questions, use...
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