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A complete-mix activated sludge process (CMAS) is to be designed to treat 5.0 million gallons per day (MGD) of primary effluent having a BOD5 of 180 mg/L. The NPDES permit requires that the effluent BOD5 and TSS concentrations should be 20 mg/L or less on an annual average basis. The following biokinetic coefficients obtained at 20∘C will be used in designing the process: Y = […]

Wridemy Plagiarism Free Paper Writing Website. Visit us here Wridemy Each answer must be in a paragraph format of at least 75 words or more. 1. Describe some ways that psychologists provide services to jail inmates. 2. Discuss the benefits of Multisystemic Therapy (MST) in the treatment of juvenile offenders. 3. .Suppose you are the judge responsible for sentencing Jason Miller, a 20 year-old man […]

Given the following information for an oxidation ditch activated sludge process: Q = 11,400 m3/d, influent soluble BOD5 = 250 mg/L, Y = 0.6 g VSS/g BOD5, kd = 0.06d−1, KS = 70 mg/L BOD5, k = 6 d−1, MLVSS = 0.70 MLSS, TKN0 = 40 mg/L, MLSS = 3,500 mg/L, DO = 2 mg/L. = 0.88, and = 0.95. Assume the biokinetic coefficients have […]

Design a fine-bubble diffused aeration system to meet an oxygen demand of 5,000 kg/d. The plant is located at an elevation of 610 meters (2,000 ft). There are two aeration basins with a total volume equal to 5,400 m3. Assume the alpha and beta coefficients for the diffusers are 0.35 and 0.95, respectively and use a temperature correction factor () of 1.024. The dissolved oxygen […]

A two-stage high-rate trickling filter with 200% recycle will be used to treat 5.0 million gallons per day (MGD). The influent BOD to the primary clarifier is 225 mg/L and the primary removes 30% of the incoming BOD. The effluent BOD should be 20 mg/L or less. Assume that the design BOD loading to the trickling filter system is 40 lb BOD/(d⋅1,000 ft3) and a […]

A two-stage high-rate trickling filter with 100% recycle will be used to treat 5,000 m3/d. The influent BOD to the primary clarifier is 220 mg/L and the primary removes 33% of the incoming BOD. The effluent BOD should be 20 mg/L or less. Assume that the design BOD loading to the trickling filter system is 1.0 kg BOD/(d ⋅ m3), and a depth of 1.83 […]

Two biotowers operating in parallel are to be designed to treat a flow of 16,000 m3/d. The BOD5 in the influent to the primary clarifier is 200 mg/L and the clarifier removes 35% of the BOD5. The minimum wastewater temperature is expected to be 14∘C. The value of k is assumed to be 0.210 (Lps)0.5/m2 at 20∘C and an effluent BOD5 concentration of 20 mg/L is to […]

Design a multi-stage RBC WWTP to treat the following wastewater for BOD removal. Influent flow = 6,000 m3/d, influent BOD5 = 260 g/m3, primary clarifier removes 35% of BOD5, total effluent BOD5 and effluent TSS = 20 g/m3, effluent soluble BOD5 (sBOD5) = 10 g/m3, and T = 10∘C. Determine: a. The number of stages and number of trains. b. The soluble BOD5 in the […]

An aerobic digester is to be designed to stabilize 600 kg/d of primary sludge at 5% solids and 75% volatiles, along with 400 kg/d of waste-activated sludge at 1% solids and 75% volatiles. The volume of the combined sludge that will be fed to the digester is 104 m3/d. The minimum design operating temperature is 18∘C. A temperature correction coefficient () of 1.06 should be […]

Assignment Content To better understand criminal behavior, we must also understand the elements of the crimes that are being committed. From this we can correlate crime and behavior while working toward predicting outcomes. Review the theories presented in Weeks 1-3. Choose three different crimes: one crime against persons, one crime against property, and one drug-related crime. Create a 10- to 12-slide Microsoft® PowerPoint® presentation on […]