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Using the information in Problem 6.1, determine the design capacities for the following: a. Source (m3/d). b. Low-lift pumps (m3/d). c. Treatment plant (m3/d). d. High-service pumps (m3/d). e. Distribution system (m3/d). Problem 6.1 Estimate the water demand for a city of 100,000 people. Assume the annual average consumption rate is 647 liters per capita … Read more

A flocculator that is 100 ft long, 50 ft wide, and 20 ft deep houses four, horizontal paddle-wheels. Each paddle-wheel has four symmetrical arms with fiber glass boards, 6.5 ft from the shaft to the center of board rotating at 1.5 rpm. Paddles are 42 ft long and 8 inches wide. The water treatment plant … Read more

Wridemy Plagiarism Free Paper Writing Website. Visit us here Wridemy Steps: Download and plot (e.g. using Excel) data from 1950 to 2010 on US aggregate Output (Q, measured in $): http://www.bea.gov/national/index.htm Capital stock (K, measured in $): https://research.stlouisfed.org/fred2/series/RKNANPUSA666NRUG Labor input (L, in hours worked): https://fred.stlouisfed.org/series/B4701C0A222NBEA Using these data series, calculate and plot two additional data … Read more

Wridemy Plagiarism Free Paper Writing Website. Visit us here Wridemy What are some of the main challenges of the Web poses for knowledge discovery?Further to the above and because of its sheer size and complexity, mining the Web is not an easy undertaking by any means. The Web also poses great challenges for effective and … Read more

Wridemy Plagiarism Free Paper Writing Website. Visit us here Wridemy IntroductionBecause police interrogation of a suspect has the potential for compulsory self-incrimination, it is subject to limitations imposed by the Fifth Amendment. Determining what constitutes an interrogation and whether the individual was in custody are key inquiries that impact procedural parameters.Let’s put this into action. … Read more

Design a vertical turbine flocculator to treat 75,700 m3/d of water per day at a detention time of 30 minutes. Use three parallel treatment trains with four compartments per train. The temperature of the water is 20∘C, resulting in values of 1.002 × 10−3 kg/(m⋅s) and 998.2 kg/m3 for and ρ, respectively. The impeller diameter … Read more

Design an RO WTP to meet the following criteria. Influent feed TDS = 3000 mg/L. Finished water produced flow rate = 1.5 MGD. TDS in treated water = 300 mg/L. Temperature of the feed = 20∘C. Water recovery factor (r) = 90% and the salt rejection = 95%. Design pressure = 600 psi and water … Read more

The water content of a solids slurry is reduced from 99% to 96% by gravity thickening. Assume that the dry solids contain 20% organic matter with a specific gravity of 1.0 and 80% inorganic or mineral matter with a specific gravity of 2.0. Lime sludge thickens to 5.0% solids in a gravity thickener. Assume that … Read more

A lime softening sludge flow of 30,000 gpd is gravity thickened from 2.0% to 5.0% in a mechanical gravity thickener. The gravity thickener is to be designed using a solids loading rate of 10 lb/(ft2⋅d) and a solids capture of 85%. Assume that the thickener has a side water depth (SWD) of 10 ft, an … Read more

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 … Read more