A city discharges 16,000 m3/d of treated wastewater into a nearby river. The treated wastewater has...
- A city discharges 16,000 m3/d of treated wastewater into a nearby river. The treated wastewater has a BOD5 of 12 mg/L and k of 0.12 d-1 at 20oC. The river has a flow rate of 0.43 m3/s and an ultimate BOD of 5.0 mg/L. The DO of the river is 6.5 mg/L and the DO of the wastewater is 0 mg/L. Compute the DO and initial ultimate BOD after mixing.
Homework Answers
Add Answer to:
A city discharges 16,000 m3/d of treated wastewater
into a nearby river. The treated wastewater has...
O The town of Gangnam in Seoul, Korea discharges 17360 m3/day of treated wastewater in the Han River. The treated w...
O The town of Gangnam in Seoul, Korea discharges 17360 m3/day of treated wastewater in the Han River. The treated wastewater has a BOD5 of 12 mg/L and a BOD decay constant, k, of 0.12 day at 20 °C. The river has a flow rate of 0.43 m/s and an ultimate BOD, Lo, of 5 mg/L. The DO of the river is 6.5 mg/L and the D0 of the wastewater is 1.0 mg/L (a) Calculate the ultimate BOD of the...
The East Hartford WWTP discharges 150 MGD of treated wastewater into the CT river. The treated was tested in the lab and found to have aBOD5 of 17.5 mg/L and an ultimate BOD (Lo) of 92 mg/L at 20oC....
The East Hartford WWTP discharges 150 MGD of treated wastewater into the CT river. The treated was tested in the lab and found to have aBOD5 of 17.5 mg/L and an ultimate BOD (Lo) of 92 mg/L at 20oC. Find the reaction rate K, for the treated wastewater. The CT river has a flow of 250 m2/s and an ultimate BOD (Lo) of 6 mg/L. the DO of the river is 4.5 mg/L and the DO of the wastewater is0.2...
DO Sag Curve: A wWTP discharges wastewater to a nearby river and a city 2.88 km...
DO Sag Curve: A wWTP discharges wastewater to a nearby river and a city 2.88 km downstream uses the river for water supply. Data is given below. Determine the DO at the intake of the city. Paraneter Flow (m3/s) BODL (mg/L) Da (mg/L) River (after mixing) 0.3 43-4 Speed (m/s) Ka at 18°C(d-) Kr at 18° C (d-) Answer: t- 0.333 d, D0-o mg/L (cannot be a negative number) 18 0.1 1.83 2.03
Q4) A town of discharges 15,000 m'd of treated wastewater into a Creck. The treated wastewater ha...
Q4) A town of discharges 15,000 m'd of treated wastewater into a Creck. The treated wastewater has The treated wastewater has a BOD, of 10 mg/L and a ko of 0.12 d'. The creek has a flow rate of 0.6 m's and an ultimate BOD of 6 mg/L. The DO of the creek is 7 mg/L and the DO of the waste water is 1 mg/L. The creek has the temperature of 7 °C while the wastewater has a temperature...
A tannery discharges wastewater into a river under the following conditions: Parameter Wastewater River 1.148 Flow...
A tannery discharges wastewater into a river under the following conditions: Parameter Wastewater River 1.148 Flow (m/s) BOD, at 15°C (mg/L) DO (mg/L) Temperature, Speed (m/s) Depth (m) 1.00 15.0 7.222 7.66 6.00 15.0 0.300 2.92 The BOD rate constant, k, in the river/wastewater mixture is measured as 0.379 d at 20°C. Deter- mine the ultimate BOD (in kg/d) that the tannery may discharge and still keep the DO in the minimum DO in the river above 5 mg/L.
A tannery with a wastewater flow of 0.011 m^3/s and a BOD_s of 590 mg/L discharges...
A tannery with a wastewater flow of 0.011 m^3/s and a BOD_s of 590 mg/L discharges into a creek. The creek has a flow of 1.7 m^3/s. Upstream of the tannery, the BOD_s of the creek water is 0.6 mg/L. The BOD rate constants (k) are 0.115 day^-1 for the tannery and 3.7 day^-1 for the creek. Calculate the initial ultimate BOD alter mixing.
A factory is discharging wastewater containing 200 mg/L BOD into a river. The river has a...
A factory is discharging wastewater containing 200 mg/L BOD into a river. The river has a discharge of 10 m3/s and the wastewater discharge is 2 m3/s. If the upstream of this river has a BOD of 10 mg/L. Please compute BOD after wastewater is completely mixed with river (any BOD degradation is not considered)
A wastewater discharge has a flow equal to upstream flow of the river it is being...
A wastewater discharge has a flow equal to upstream flow of the river it is being discharged into. The river upstream has a DO of 7 mg/L, and negligible BOD. The wastewater discharge has an ultimate BOD of 50 mg/L, and negligible DO. It is determined that it would cost an equal amount of money to reduce the BOD to 25 mg/L or to increase the DO to 8 mg/L. Which alternative, considering DO sag, would you judge to be...
is proposed to discharge a wastewater to a small river (wastewater and river characteristics given below)....
is proposed to discharge a wastewater to a small river (wastewater and river characteristics given below). The temperature of the river and wastewater i and velocity downstream of the discharge is 1.5 m/s. Saturation DO concentr:a 25°C is 8.2 mg/L 2. It s 25°C, Wastewater 1.5 w 31.5 6.1 River Parameter Flow (m/s) BODu( mg/L) DO (mg/L) negligible 8.0 kra20c 0.41 day kd@20c = 0.26 day. Determine: a. Ultimate BOD just downstream of the point of discharge (8 pts) b....
You have collected water samples of the influent (raw sewage) and effluent (treated sewage) at Houston Wastewater Treatment Plant. You plan to conduct the BOD5 test to determine the BOD rate constant,...
You have collected water samples of the influent (raw sewage) and effluent (treated sewage) at Houston Wastewater Treatment Plant. You plan to conduct the BOD5 test to determine the BOD rate constant, k. A. Would you expect the rate constants to be the same or different in these two samples? If different, which would be higher and why? B. If the BOD5 for the raw sewage sample is 600 mg/L, and the ultimate BOD is 650 mg/L at 20oC, find...
O The town of Gangnam in Seoul, Korea discharges 17360 m3/day of treated wastewater in the Han River. The treated wastewater has a BOD5 of 12 mg/L and a BOD decay constant, k, of 0.12 day at 20 °C. The river has a flow rate of 0.43 m/s and an ultimate BOD, Lo, of 5 mg/L. The DO of the river is 6.5 mg/L and the D0 of the wastewater is 1.0 mg/L (a) Calculate the ultimate BOD of the...
DO Sag Curve: A wWTP discharges wastewater to a nearby river and a city 2.88 km downstream uses the river for water supply. Data is given below. Determine the DO at the intake of the city. Paraneter Flow (m3/s) BODL (mg/L) Da (mg/L) River (after mixing) 0.3 43-4 Speed (m/s) Ka at 18°C(d-) Kr at 18° C (d-) Answer: t- 0.333 d, D0-o mg/L (cannot be a negative number) 18 0.1 1.83 2.03
Q4) A town of discharges 15,000 m'd of treated wastewater into a Creck. The treated wastewater has The treated wastewater has a BOD, of 10 mg/L and a ko of 0.12 d'. The creek has a flow rate of 0.6 m's and an ultimate BOD of 6 mg/L. The DO of the creek is 7 mg/L and the DO of the waste water is 1 mg/L. The creek has the temperature of 7 °C while the wastewater has a temperature...
A tannery discharges wastewater into a river under the following conditions: Parameter Wastewater River 1.148 Flow (m/s) BOD, at 15°C (mg/L) DO (mg/L) Temperature, Speed (m/s) Depth (m) 1.00 15.0 7.222 7.66 6.00 15.0 0.300 2.92 The BOD rate constant, k, in the river/wastewater mixture is measured as 0.379 d at 20°C. Deter- mine the ultimate BOD (in kg/d) that the tannery may discharge and still keep the DO in the minimum DO in the river above 5 mg/L.
A tannery with a wastewater flow of 0.011 m^3/s and a BOD_s of 590 mg/L discharges into a creek. The creek has a flow of 1.7 m^3/s. Upstream of the tannery, the BOD_s of the creek water is 0.6 mg/L. The BOD rate constants (k) are 0.115 day^-1 for the tannery and 3.7 day^-1 for the creek. Calculate the initial ultimate BOD alter mixing.
A wastewater discharge has a flow equal to upstream flow of the river it is being discharged into. The river upstream has a DO of 7 mg/L, and negligible BOD. The wastewater discharge has an ultimate BOD of 50 mg/L, and negligible DO. It is determined that it would cost an equal amount of money to reduce the BOD to 25 mg/L or to increase the DO to 8 mg/L. Which alternative, considering DO sag, would you judge to be...
is proposed to discharge a wastewater to a small river (wastewater and river characteristics given below). The temperature of the river and wastewater i and velocity downstream of the discharge is 1.5 m/s. Saturation DO concentr:a 25°C is 8.2 mg/L 2. It s 25°C, Wastewater 1.5 w 31.5 6.1 River Parameter Flow (m/s) BODu( mg/L) DO (mg/L) negligible 8.0 kra20c 0.41 day kd@20c = 0.26 day. Determine: a. Ultimate BOD just downstream of the point of discharge (8 pts) b....
Most questions answered within 3 hours.
-
The factory method and the abstract factory pattern use
different object oriented
mechanisms are used to...
asked 43 minutes ago -
Given the data below for the monthly sales data at each branch in
your region for...
asked 1 hour ago -
Blossom Company owns 10000 of the 50000 outstanding shares of
Taylor, Inc. common stock. During 2018,...
asked 2 hours ago -
Calculate the following: ***SHOW ALL WORK!!!! Or
NO CREDIT*** Circle your answers. 8pts
each
In the...
asked 4 hours ago -
Bank Z is currently advertising interest rates on its checking
account. They claim to pay an...
asked 3 hours ago -
List two ways of transformation on the response variable that
can be used to deal with...
asked 5 hours ago -
If a 2000 ohm resistor has a -3.90 mA current going through it.
What is the...
asked 5 hours ago -
Please comment on the sentences.
Some types of jobs require more training than others. Some
companies...
asked 6 hours ago -
The )G01 for the hydrolysis of phosphorarginine
reaction depicted below is –32 kJ mol-1.
Phosphoarginine ...
asked 6 hours ago -
Cross a heterozygous blue-eyed goat with a homozygous brown-eyed
goat. Be sure to indicate which kids...
asked 7 hours ago -
Use the following information to answer the next two
questions.
Please refer to question 9-90. A...
asked 7 hours ago -
A solution containing 0.050 g of an unknown electrolyte in 2.50
g of cyclohexane was found...
asked 7 hours ago