A township is to treat 5,00,000 litres of sewage per day which has a 5-days BOD of 150 ppm. An oxidation pond is used for the purpose. The effluent can have a BOD of 15 ppm. The loading is to be 40 kg of 5-days BOD per hectare per day. The required area of the pond is

A township is to treat 5,00,000 litres of sewage per day which has a 5-days BOD of 150 ppm. An oxidation pond is used for the purpose. The effluent can have a BOD of 15 ppm. The loading is to be 40 kg of 5-days BOD per hectare per day. The required area of the pond is

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter6: Biological Processes

Section: Chapter Questions

Problem 6.1P

See similar textbooks

Related questions

Q: From the following data estimate the unit waste generation rate for a residential area consisting of…

Q: Waste, measured as BOD, is removed according to first order kinetics at a rate constant of 0.4…

A: We knowBODt=BODY1-e-ktso for ·%BODtBODy=100-80=20%so,0.2=1-e-0.4tt=1.9348min

Q: If the BOD; for some wastewater is 220 mg/L and the ultimate BOD is 310 mg/L, find the reaction rate…

A: BOD5 = 220 mg/L BODt= 310 mg/L we know BODt = Lo (1-e-kt) 220 = 310 (1-e-5k) e-5k = 1-220310 -5k =…

Q: What is the effluent BOD5 of an activated sludge plant, given So = 150 mg/1, y = 0.5 kg biomass/kg…

Q: These re process in a water treatment plant except: a. Collection of water from watershed b.…

Q: (b) In the town of Abesim, it is determined that the per capita waste generation rate is 1.4 kg (3.1…

Q: An industrial plant generates daily 1 m³ of sewage that have a 5-daym3/d) BOD of 350 ppm. Compute…

A: given- sewage=1 m3/dayBOD=350 ppm

Q: Following are the Design data for the septic tank : Wastewater flow rate = 150 lcpd desludging…

Q: If a wastewater has a soluble orthophosphate concentration of 6.00 mg/L as P (PO:-P), what…

A: Atomic wt. Of Al=27 S=32 O=16 Phosphorus, P=30 Here, 1 mol of Al2(SO4)3 reacts with 2 mol of P to…

Q: The folowing treated effluent in a dairy factory at Mosul city is discharge to a stream; Q= 30 L's,…

Q: A lagoon having three cells, each 100,000 m2 in area, a minimum operating depth of 0.5 m, and a…

A: Given data- 3-cells with area=100,000 m2 eachDischarge (Q)=2,000 m3/dayAvg. BOD5=200 mg/L To find-…

Q: For a colony of 10000 persons having sewage flow rate of 200 1/capita/day, BOD of applied sewage is…

Q: X 1. One million gallons per day of municipal wastewater with a BOD5 of 260 mg/L and suspended…

Q: The ultimate BOD of two wastewaters is 280 mg/L but their K values are 0.1/d and 0.23/d at 20oC.…

A: Given:- Ultimate BOD =280mg/l K=0.1/d k=0.23/d T=20OC Ultimate BOD=280mg/l To find:- BOD5

Q: A cheese production facility in Winchester Ontario is having problems meeting the Provincial…

A: find S= ? Change in volume =?

Q: If the BOD of a municipal wastewater at the end of 5 days is 60 mg/liter and the ultimate BOD is 85…

Q: Еxample Treatment plant with capacity 50*10° 1/day. This treatment plant required 20 mg/l alum. If…

A: We have to find the value of quantity of alum and quantity of CaO used as coagulant yearly according…

Q: 44. A township is to treat 5,00,000 litres of sewage per day which has a 5 day BOD of 150 ppm. An…

Q: The wastewater from a manufacturing treatment plant is discharged to a municipal `treatment plant…

A: Given: From manufacturing wastewater: From domestic wastewater: The weight ratio of the mix is…

Q: One of the paper mill factories is located near by the Sg Jerangau, Pahang, and the treated…

Q: The industry plans to release 4,000 L of 0.05 M hydrochloric acid into the lake every week. Given…

A: Given : Volume of HCl i.e hydrochloric acid added = 4000 L Concentration of HCl added = 0.05 M…

Q: Answer and show complete solution. Pls don't reject A factory discharges waste water to a nearby…

Q: If the BOD of a municipal wastewater at the end of 7 days is 60 mg/liter and the ultimate BOD is 85…

Q: A dairy plant processing about 133000 kg of milk daily produces an average of 246 cubic meter per…

Q: Que. If the average sewage from a city is 95 × 1061/day and the average 5 day BOD is 300mg/l against…

Q: The wastewater from a manufacturing treatment plant is discharged to a municipal 'treatment plant…

A: Given: From manufacturing wastewater: From domestic wastewater: The weight ratio of the mix is…

Q: It is required to remove 140 mg/1 of BOD from a waste water discharge of 0.5 MLD. Determine the…

A: Given: BOD to be removed, BODremoved = 140 mg/l Discharge rate of waste water, Q = 0.5 MLD = 0.5 x…

Q: if Determine the value of kafor wastewater and stream, the conditions are as follows: Wastewater: k…

A: K = .032 d-1 H = 4m v = 2.5 m/sec n = 0.6

Q: The wastewater from a manufacturing treatment plant is discharged to a municipal 'treatment plant…

A: Given: For manufacturing wastewater: For domestic wastewater: The weight ratio of the mix is…

Q: A water treatment plant (WTP) in Pulai Jaya Baru has a design water flow of 3.8 x 103 m/d. The rapid…

A: Designed Water flow = 3.8 × 103 m3/day Alum dosage /liter = 30mg

Q: The waste water of a city has a five day BOD value equal to 160 ppm whereas the allowable vahue for…

A: Given: Quantity of waste water = 0.75 MLD = 75 x 105/day BOD…

Q: A factory discharges waste water to a nearby river. The concentration of dissolved oxygen (DO) a few…

Q: 0.5 MLD of waste water is to be treated per day that has 5 day BOD of 150 ppm. The permissible…

A: Given: Quantity of waste water = 0.5 MLD = 5 x 105/day BOD of…

Q: A wastewater treatment facility needs to install a sedimentation tank as part of their operations.…

A: Part A Water supply= 1500 m3/d After evaporation loss= 1125 m3/d Volume of the tank required= 1125…

Q: Q- A certain waste has a BOD of 180 mg/L and its flow is 2000 cubic metres/day. If the domestic…

A: Given- waste BOD=180 mg/L,flow Q=2000 m3/day,domestic BOD=100 gm/capita/day. It is needed to find…

Q: A city has a population of 10,000 with an area of rapid filter as 20 m² and an average filtration…

A: Given data: Population of city = 10,000 Area pf rapid filter = 20 m2 Average filtration rate = 4000…

Q: A food plant discharge of BOD causes oxygen sag curve to have a minimum of 6.5 mg / L. If the BOD…

A: The given data is shown below: Minimum DO=6.5 mg/LSaturated DO=9 mg/LInitial oxygen deficit=0 mg/L

Q: Example Treatment plant with capacity 50*106 l/day. This treatment plant required 20 mg/l alum. If…

A: Given: The capacity of plant is 50×106 l/day. The amount of alum required by the treatment plant is…

Q: Design an oxidation pond to treat waste water from a community of 10,000 people with a per capita…

Q: A well‐mixed sewage lagoon is receiving 430 m^3/d of untreated sewage. The lagoon has a surface area…

A: Solution: Given data: Area=10 hectaredepth=1 mQin=430 m3/dayCin=180 mg/LReaction rate constant=0.70…

Q: A community has an estimated population 20 years hence equal to 30,000 the present population is…

Q: A trickling filter plant treats 1500 cu m per day of sewage with a BOD, of 220 mgA and SS of 250…

Q: The design flow of sewage is 3.8 million litres per day, and the BOD of the raw sewage is 300 mg/l.…

Q: A lagoon with a volume of 1200 m3 has been receiving a steady flow Q = 100 m3/day of a…

A: The given data is shown below:

Q: A city of 200,000 people deposits 37 cubic feet per second (cfs) of sewage having a BOD of 28.0 mg/L…

A: I have solved your whole problem.

Concept explainers

Mechanical Processes

In civil engineering, the materials have to undergo a series of manufacturing processes before using them in construction and structural applications. These manufacturing processes form the foundation stone of mechanical processes. Some of the civil engineering materials such as bars, metallic beams, metallic columns, surveying equipment, earthmovers, overhead cranes, structural and construction components, and even cement that is the most fundamental construction component need to undergo different manufacturing processes before they are ready to use. These processes are mechanical.

Question

A township is to treat 5,00,000 litres of
sewage per day which has a 5-days BOD
of 150 ppm. An oxidation pond is used
for the purpose. The effluent can have a
BOD of 15 ppm. The loading is to be 40
kg of 5-days BOD per hectare per day.
The required area of the pond is

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Calculate the ultimate BOD of a waste that has a measured 5-day BOD of 20 mg/L, assuming aBOD rate coefficient of 0.15/day.
i) The Abesim Stone Works employs six people. Assuming that the density of uncompacted waste is 480 kg/m³? , determine the annual volume of solid waste produced by the stone works assuming a waste generation rate of 1 kg/cap^-1.day.
Qy Waste water has a 5 - day BoD of 600 ppm Cingle) and the k value a 2006 is 0.2 per day. Find the Ultimate BoD of the waste. What would be the 5 day. BOD if the value of t dropped to al per day?
The discharge from the Renenutet sugar beet plant causes the DO at the critical point to fall to 4.0 mg/L. The Meskhenet Stream has a negligible BOD and the initial deficit after the river and wastewater have mixed is zero. What DO will result if the concentration of the waste(L_w) is reduced by 50%? Assume that the flows remain the same and that the saturation value of DO is 10.83 mg/L in both cases.
THIS IS NOT GRADED QUESTION. Environmental Engineering-2 PLZ, SOLVE THIS PROBLEM AT EVERY PART. • Calculate the total load at the end of the day. • Calculate the capita (per home), if the no of residences in the locality (from which the whole waste generates) is 5395
For the following wastewater and biomass characteristics: Q0 = 50 m3/d S0 = 60 mg NH4+-N/l Xi0 = 20 mg/l k= 2.5 mg NH4+-N/mg VSS-d K = 1 mg/l Y = 0.34 g VSS/g NH4+-N b = 0/day Calculate the volume of the CSTR required for 50 and 98% removal of ammonia by oxidation to nitrate.
Discharge of waste water from a pulp mill results in an oxygen sag minimum value of 3.2 mg/L. At the point of discharge the river has a saturated DO value of 9 mg/L. The pulp mill isthe only source of BOD to the river. Given a river velocity of 2 m/s, an average depth of 5 m and kd of 0.22/day, calculate: the percent reduction of the BOD in the waste water to ensure a healthy river with > 5mg / L everywhere. the downstream distance that the DO minimum occurs the ultimate BOD of the river waste water mixture at discharge point so that DO minimum si 5 mg/L.
The folowing treated effluent in a dairy factory at Mosul city is discharge to a stream; Q= 30 L's, DO-2 mg/L, 5-day BOD-40 mg/L, ka= 0.1/day, and T-20°C. Upstream from the outfall the watercourse has the following characteristics: Q= 0.27 m/s, DO-8 mg/L, 5-day BOD=2 mg/L, and T=20°C. The stream has a k= 0.2/day. Calculate the critical dissolved oxygen concentration downstream, and the distance from the outfall to this point assuming a mean velocity of 0.6 m/s in the river. The saturation value of DO at the temperature of the stream is 9.17 mg/L
A landfill that is 12 ha in area has a liner of thickness 0.9 m. Each year 1700 m3 of leachate is collected. The hydraulic conductivity ofthe liner is 3.9 × 10-10 m · s-1. What is the head of water above the liner? Select one: a. 2 m b. 3 m c. 1 m d. 4 m
1) a)Calculate f and L of a rotary dryer for a kaolin plant to dry 20 tph pressure filtered kaolin containing 22% H2O. Dry kaolin moisture content must not be more than 5% H2O. b)Estimate the energy consumption as kWh and its cost (1 kWh = 14 ¢)
(b) In the town of Abesim, it is determined that the per capita waste generation rate is 1.4 kg (3.1 lb) per person per day. The collection is conducted once per week by the municipality. If the density of MSW in a typical trash container is 150 kg/m³, how many 120 L (30 gal) containers would be needed for a family of four? (c) From (b), collection trucks have a capacity of 11.5 m³(15 yd³), which can compact the waste to a density of 420 kg/m³. How many customers can a truck handle in a single run, before departing for the transfer station?
A waste has an ultimate BOD of 1,000 mg/L and a kL of 0.1/day. What is its 5-day BOD?