what is the wastewater treatment principal and layout? Discuss how to design a sedimentation tank

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gladiator answered 1 year ago

A wastewater treatment plant that treats wastewater to secondary treatment standards uses a primary sedimentation process...

A wastewater treatment plant that treats wastewater to secondary treatment standards uses a primary sedimentation process followed by an activated sludge process composed of aeration tanks and a secondary clarifiers. This problem focuses on the activated sludge process. The activated sludge process receives a flow of 15 million gallons per day (MGD). The primary sedimentation process effluent has a BOD5 concentration of 180 mgBOD5/L (this concentration is often referred as S). Before flowing into the activated sludge process, the primary...

Design an aeration tank for activated sludge wastewater treatment designed to meet an effluent standard of...

Design an aeration tank for activated sludge wastewater treatment designed to meet an effluent standard of 10 mg/L BOD5. The flow from the primary effluent is 10 m3/min with a primary effluent BOD5 of 250 mg/L. The design calls for the suspended solids to equal 3500 mg/L for an SRT of 5 days. The decay rate constant is 0.03 day-1 and the yield is 0.75 mg/mg. Determine: the tank volume required to meet these specifications, the resulting mass of sludge...

How can sewage treatment that combines both aeration and sedimentation in the same tank can be...

How can sewage treatment that combines both aeration and sedimentation in the same tank can be improve to treat high concentration of ammonia?

What is wastewater treatment? what is the process of wastewater treatment? why is wastewater treatment important?...

What is wastewater treatment? what is the process of wastewater treatment? why is wastewater treatment important? No Plagiarism. Please Print essay format question

A mass balance is performed for a treatment process consisting of a sedimentation tank followed by...

A mass balance is performed for a treatment process consisting of a sedimentation tank followed by a mixing tank. First, 25097 m3/d of raw wastewater with solids concentration of 180 mg/l flows into the sedimentation tank. 97% of the incoming solids end up in the sludge. The effluent flows at a rate of 1040 m3/hr. Next, the effluent of the sedimentation tank enters the mixing tank where it is mixed with pure filtered water. Assume that the density is the...

Sedimentation basins are employed both in filter plants for drinking water treatment and in municipal wastewater...

Sedimentation basins are employed both in filter plants for drinking water treatment and in municipal wastewater treatment plants. Briefly explain what solids are removed in each of these sedimentation basins.

How can I design a rectangular sedimentation tank? Inputs: Average Flowrate , Peak Flowrate ,Number of...

How can I design a rectangular sedimentation tank? Inputs: Average Flowrate , Peak Flowrate ,Number of tanks, W:L ratio , Launder width, Sidewall depth ,Bottom slope, MLSS concentration ,Recycle ratio (R) Outputs: Length , Width ,Surface loading (for Qave and Qpeak) ,Weir type (one-sided, two-sided, 1/3 of length, corrugated) Weir loading (for Qave and Qpeak) ,Solids loading (for Qave and Qpeak) ,Retention time (for Qave and Qpeak) ,Horizontal velocity (for Qave and Qpeak) (if it is rectangular)

Sketch the layout for a typical conventional wastewater treatment plant. Label each process. Briefly describe pretreatment,...

Sketch the layout for a typical conventional wastewater treatment plant. Label each process. Briefly describe pretreatment, primary treatment, and secondary treatment and their basic functions.

Consider the design of a wastewater treatment plant (WWTP) for a community with average daily and...

Consider the design of a wastewater treatment plant (WWTP) for a community with average daily and peak hourly wastewater design flows of 7570 m3/day and 18925 m3/day. The raw sewage has an average of 240 mg/L BOD5 and 270 mg/L of suspended solids. (a) Assume that the primary sedimentation process removes 55% of the suspended solids and 35% of the BOD5 of the raw sewage. Determine the SS and BOD5 concentrations in the primary sedimentation effluent flow. (1 mark) The...

how is sludge treated differently in water treatment vs wastewater treatment?

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