A wastewater treatment lagoon is being designed to accommodate an input flow of 0.1m^3/s containing a non-conservative pollutant at a concentration of 25.0 mg/L. The pollutant has a reaction rate of 0.25/day. The effluent from the lagoon must have a pollutant concentration of less than 10.0 mg/L to remain within permit limits. Assuming complete mixing, how large must the lagoon be?

Q: Briefly explain the basics of how an activated sludge process removes soluble BOD from the…

A: Water is used for waste disposal. It consists of things like chemicals, oil, soap, human waste, and…

Q: Compute the required volume of the aeration tank. If the SWD is to be 15 ft and the tank length to…

A:

Q: Calculate theoretical oxygen requirement (kg/day) of a complete - mix activated sludge process…

A: To calculate the theoretical oxygen requirement, we need to consider the oxygen demand for carbon…

Q: 7-24. The town of Pittsburgh discharges 0.126 m’/s of treated wastewater into Cherry Creek. The BOD,…

A: It is given by ; LW = BOD1 - e- k t where ; BOD = 34 mg / L k = BOD rate constant = 0.222 / day t =…

Q: 2. The average wastewater flow from a community of 20,000 is 125 gpcd. The 5 day, 20 deg C BOD is…

A: Population = 20000To Find:1) Settling tank surface area2) Settling tank diameter3) BOD removal in…

Q: Raw water from Lake Limpid is treated via direct filtration and disinfection to supply 0.26 m³/s (5…

A: In order to render raw water or wastewater safe for human consumption or to safeguard the…

Q: Design a rapid mono-media sand filter for a plant that has a design flow rate of 120 MGD Filtering…

A: Design a rapid mono-media sand filter for a plant that has a design flow rate of 120 MGD Filtering…

Q: 5. The design flow (average daily flow) for a new trickling filter plant for the tri-cities is…

A:

Q: A municipal wastewater flow of 1,000 m³/d contains 400 mg/L BOD5 and is treated to be in a trickling…

A:

Q: Calculate Peak Wet Weather Flow given the following information about a wastewater treatment plant:…

A: Peak dry weather flow is given gyPDWF=Peak factor×ADWFADWF=Average Dry weather flowso,

Q: Design a trickling filter system for BOD removal without the nitrification requirement, to treat…

A: Given,Average flow of waste water=200 m3/dInfluent BOD = 200 mg/LInfluent Ammonia = 42…

Q: a) Determine the total GMF surface area required to filter a volumetric flow rate of 10.0 MGD at a…

A: Volumetric flow rate, Q = 10 MGD Filtration rate = 4.0 gallonsmin-ft2 For backwashing, Backwashing…

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: A single-stage, trickling-filter plant consists of a primary clarifier, a trickling filter 70 ft in…

A:

Q: The City of Marietta has been directed by the City Board to upgrade its primary Wastewater Treatment…

A: Given   Y = 0.5 mg VSS/mg BOD removed  Kd = 0.05 d-1 (Theta)c =SRT= 14.5 days  Effluent BOD, S = 75…

Q: The minimum temperature of the water is 5 °C, the free chlorine residual in the effluent from the…

A:

Q: ider the feasibility of treating the wastewater from the town of Nancy (Problem 12.31) in a…

A: Using high-density cross-flow media, we may compute the soluble effluent BOD and the predicted…

Q: A Reverse Osmosis treatment plant is treating salty water on a farm and operates 24 hours a day. It…

A: Data given: Capacity of treatment plant = 10000L/day Treatment capacity = 50% Rate of infiltration =…

Q: You’re working on a preliminary design for a water treatment plant expansion for Fell City.  The…

A: Given Data Discharge of water to be treated, Q=12MGD=12×10624×60=8333.33 gpmWater required for…

Q: A flowing stream has a temperature of 14°C, flow rate of 3.0 m}sec, saturated dissolved oxygen…

A: since the given question has multiple sub parts therefore as per guidelines only first three parts…

Q: The City of Marietta has been directed by the City Board to upgrade its primary Wastewater Treatment…

A: I think there is some missing data either missing in influent BOD  or in the answer although I have…

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.