The BOD value of a wastewater was measured at 2 d and 8 d and found to be 125 and 225 mg/L, respectively. Determine the 5 d BOD value using the frst order rate

Q: 2. For discrete settling, the experimental data of a wastewater settlement are as follows: the…

A: Given data- Discrete settling-Initial concentration Co=400 mg/LWater depth H=1.2 mTo Find-The…

Q: Q.5 Sedimentation Basin/Tank: Two million liters of wastewater per day is passing through a…

A:

Q: .A domestic wastewater contains 350 mg/L of suspended solids. Primary sedimentation facilities…

A: According to given data .A domestic wastewater contains 350 mg/L of suspended solids.Primary…

Q: If you are designing a monitoring program for dissolved oxygen in a stream that receives inputs from…

A: Dissolved Oxygen (DO) is a measure of how much oxygen is dissolved in water. it is the amount of…

Q: If the BOD3 of a wastewater sample is 75 mg/l and reaction rate constant k (base e) is 0.345 per…

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Q: 4. If the ultimate BOD for wastewater has been estimated as (200+X) mg/l, calculate be the 5 days…

A:

Q: Question- A circular primary clarifier processes 5005 cubic meters of municipal wastewater every…

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Q: 3. Calculate the SDI for the following samples. Determine if the water needs to be pretreatment…

A: To calculate the SDI, we use the following formula:SDI = (1 - Ti / Tf) * 100 / Ttwhere:Ti is the…

Q: Q3 (a) Describe briefly the main objective water quality and state the main parameters involved in…

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Q: Question 1 The following data pertains to a sewage sample: Initial D O. 15 mg/l Final D O. = 4 mg/l…

A: Initial DO=15 mg/L, Final DO=4 mg/L, 2% dilution factor=100/2,

Q: The average design flow at a wastewater treatment plant facility is 1.5 m3/s. The bar rack is…

A: Design Flow = 1.5 m3/s Clear spacing between bars of bar rack = 2.5 cm

Q: 4.6 Poorly treated municipal wastewater is discharged to a stream. The river flow rate upstream of…

A: We have to determine BOD concentrations

Q: rcentage remc Select ONE.

A: Given: Volume is 875 m3 Quantity to treat is 10.5 ML/d

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: 6. Design a circular sedimentation tank with a retention period of two hours for a town with a…

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Q: A 8.5 ml of sample of wastewater is diluted to 300 ml with distilled water in standard biochemical…

A:

Q: At the point of mixing of a river and a wastewater point discharge, DO is 5.5 mg/L and DOs is 10.1…

A: It is required to find critical deficit of DO and minimum DO. Critical time of DO deficit and…

Q: Wastewater from a small rural town has been estimated to have a maximum design flow of 8,200 m³/day,…

A:

Q: It takes 30 hours for water to flow from Point A to point B in a river. The flow rate and BOD5 in…

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Q: A sedimentation tank of dimensions 33m x 12m x 6m is filtering wastewater at a flow rate of 0.3…

A:

Q: The following data pertain to a sewage sample: Initial DO = 9.5 mg/l, Final DO = 2 mg/l, Dilution =…

A: Initial DO=9.5 mg/L, Final DO=2 mg/L, 1% dilution factor=100/1,

Q: A wastewater containing 300 mg/l SS and 250 mg/l BOD passes through a primary sedimentation tank of…

A: Given data- Primary Sedimentation Tank- Surface Area (S.A) = 600 m2 Flow (Q) = 15×103 m3/day Initial…

Q: A sedimentation tank of dimensions 33m x 12m x 6m is filtering wastewater at a flow rate of 0.3…

A: Given: Length, L = 33 m Width, B = 12 m Depth, H = 6 m Flow rate, Q = 0.3 m3/s Density of particles,…

Q: tream with a flow rate of 5 m³/s is having an ultimate BOD of 30 mg/litre. A wastewater discharge of…

A: According to given data  A stream with a flow rate of 5 m³/s ishaving an ultimate BOD of 30…

Q: Question- A circular primary clarifier processes 5005 cubic meters of municipal wastewater every day…

A: Given- Circular primary clarifier- Average flow rate (Q) =5005 m3/day, Over flow rate- OFR=35…

Q: A conventional activated sludge plant is to be designed to achieve a mean effluent BOD and TSS value…

A: Given: Mean BOD / TSS effluent =10 mg/l Geometric standard deviation= 1.3

Q: The Lo value just downstream from a sewage outfall is 60 mg/L. The DO saturation level at that point…

A: a) Calculation of critical distance:…

Q: Q2: For a wastewater sample at constant BOD test conditions, find the ratio of BOD10 to BOD5…

A: BOD (bio chemical oxygen demand) -  the amount of the oxygen required for the decomposition of bio…

Q: The following data pertain to a sewage sample: Initial DO = 10 mg/L Final DO = 2 mg/L Dilution to 1%

A: Given- DOi=10 mg/L,DOf=2 mg/L,DF=1%. It is needed to find the BOD of the given sample.

Q: A detention pond is designed to achieve 100% removal of 0.1 mm fine sand particles at the design…

A: Given in the Question: Fine sand particle diameter = 0.1mm Design flow rate  = Q Pond Flow rate= 2Q…

Q: 1. Calculate the volume and weight of sludge generated per day in circular primary settling tam…

A: The given data is: Flow=10000 m3/d The inlet concentration=1100 mg/l The total suspended…

Q: What is the difference between DO and BOD? Clearly explain why these 2 parameters are used in water…

A: Dissolved Oxygen (DO): It is the amount of oxygen which is dissolved in water. The solubility of…

Q: Then, you were asked to find out the biodegradability of this wastewater by conducting a 5-day…

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Q: river and the slaughterhouse wastewater is 28°C. Calculate the initial ultimate BOD after mixing.…

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Q: 3 m If a dairy processing factory produces an average of 235 of wastewater with a BOD of 1200m²t.…

A: A dairy processing factory produces discharge Q= 235 m3/d of wastewaterper capita daily sewage flow…

Q: Please solve all the choices

A: 1) surface area of tank = 2000 ft^2 Max flow rate: 500 * 2000 = 1000000 GPD = 1 MGD 2) MCRT =…

Q: The 2-day and 4-day BOD values of a sewage sample are 100 mg/L and 155 mg/L, respectively. The value…

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Q: Q2: A wastewater containing 300 mg/l SS and 250 mg/l BOD passes through a primary sedimentation tank…

A: Here removal efficiency is not given, so we go with standard efficiency value. BOD removal in…

Q: The specific gravity of particles in wastewater is 2.7 and the kinematic viscosity of water is…

A: Given: Specific gravity of particles, G = 2.7 Kinematic viscosity of water = 1.02 x 10-2 cm2/s…

Integrated Solid Waste Management

Integrated Solid Waste Management (ISWM) is a thorough waste suppression, compost, removal and recycling Program. An effective ISWM system considers how to suppress, manage and recycle solid waste in a manner that is most efficiently to protect human health and the surrounding. ISWM system requires evaluation of public wants and demands and then selecting and merging the most effective waste management activities for the proposed demands. The main ISWM activities for solid waste management are Waste prevention, Recycling and Composting, and Combustion and Removal and waste collection in a properly planned, constructed, managed and mitigated landfill areas. Each of these requires careful designing, financing, accumulation, and delivery of activities.