WebThe BOD is an empirical measurement which has been universally adopted to quantify the amount of oxygen (expressed in terms of mg/l or ppm) which would be consumed if the carbonaceous organic matter present in the waste water were oxidised by a population of micro organisms. WebA plastic media bio tower has vertical flow packing with n = 0.5 and k20 of 0.045 min–1. The tower is cylindrical with a diameter of 10 m. Depth of packing medium is 6 m. The primary effluent flow rate is 2500 m3/d with a soluble BOD5 of 250 mg/L. The average wastewater temperature is 16°C. Direct recirculation is practiced at a 1:1 ratio.

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http://www.engineeringfundamentals.com/BiotowersMobile/applications.html WebAssuming media with a thick biofilm of 3-4 mm( including the water) it will have a weight of above 500 kg/m³. On 6 meters the bottom layer will have to sustain a weight of 3 tonnes! … truth take: post debate prayer meetings

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WebCascade Filterpak YTH1170 is a high surface area, neutral buoyancy polypropylene media specifically developed for use in submerged reactor applications. The combination of a … WebQuestion: Principles of Water & Wastewater Treatment A plastic media biotower has the following characteristics: Q = 1.2 mgd QR = 1.2 mgd Biotower depth = 14 ft Si = 150 mg/L BOD Se = 20 mg/L BOD K = 0.0221 n = 0.5 Assuming 35% BOD removal in the primary clarifier, what is the minimum diameter of the biotower (in feet) to meet the … WebDec 27, 2001 · In the biotower, attached films of microorganisms feed on the organic material in the wastewater, removing it from the flow stream. Excess growths of microorganisms are washed off the biotower media and eventually are removed in the secondary clarifiers. The biotower reduces the organic load to the activated sludge … philips led multicolor christmas lights