Dissertation > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization

Study on MOCO Process for Brewery Wastewater Treatment

Author GeLiPing
Tutor GaoJunFa
School Chang'an University
Course Municipal Engineering
Keywords MOCO process Nitrogen and phosphorus removal Beer Wastewater Sludge load Optimum operating parameters
CLC X703
Type Master's thesis
Year 2009
Downloads 107
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The MOCO process is a new type of nutrient removal process . On the basis of the OCO process , test analysis and improvement , the addition of a diversion wall to form an effective oxygen gradient , to further improve the efficiency of nitrogen . Of beer wastewater is also the source of water pollution , the higher concentration of organic pollutants , water quality and quantity fluctuations . For stable operation of the test process , the thesis the artificial simulation beer wastewater for the study. By the system of research and practice , and find the regularity of things , and thus be able to guide the optimization of the brewery wastewater treatment plant design and application . The primary research content : MOCO process analysis of the effect of organic matter , ammonia nitrogen and total nitrogen place ; determination of the optimum operating parameters ; the MOCO process to remove organics kinetics model . Drawn through the experimental study : MOCO reactor flow pattern function E (t) = 0.69e - 0.69t , F (t ) = 1- e - 0.69t ; the MOCO process HRT 8h, N s the 0.41kg BOD 5 / the ( kgMLSS · d ) the N v 1.00kgBOD < sub> 5 / (m 3 · d); sludge concentration MLSS maintained at a higher concentration of 4500mg / L and hydraulic retention time over 8h when the influent CODcr concentration varies between 1000-2000mg / L , organics removal is able to achieve more than 95% this shows that the the MOCO process has a strong impact ; even by a low temperature , when the hydraulic residence time not less than 8 hours , the the MOCO process NH 3 -N , the average removal rates of TN maintained at more than 79% and 64% treated effluent can meet the beer industry emission standards ( GB19821 -2005 ) . This shows that the application of the Process beer wastewater is feasible . On an experimental basis , through the analysis of a large number of test data derived : sludge age in higher processing efficiency can be achieved in the 8-12d ; combination of the Monod equation ( ?) , The establishment of the dynamic model of the the MOCO handling beer wastewater for ( ? ) , the relevant coefficient R 2 = 0.9735 .

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