基于OPMSE与BAT的啤酒行业排放限值仿真

以OPMSE仿真计算啤酒行业排放污水中COD,BOD,NH3-N质量浓度为研究对象,查询及调研清河流域典型啤酒行业产生污水中COD,BOD,NH3-N质量浓度范围,经BAT处理后通过OPMSE的仿真计算,得出排放污水中污染物质量浓度正态分布置信区间、最佳出水及最差出水质量浓度。结果表明:置信水平为99%时,COD,BOD,NH3-N的置信区间分别为(75.83,95.95),(19.30,25.88),(5.68,6.85);最佳出水质量浓度分别为4.14 mg/L,5.36 mg/L,2.71 mg/L;最差出水质量浓度分别为20.64 mg/L,20.70 mg/L,10.86mg/L。将仿真结果与现有排放标准对比,拟定啤酒行业的污染物直接排放限值为COD=100 mg/L,BOD=30mg/L,NH3-N=8 mg/L;间接排放限值为COD=400 mg/L,BOD=80 mg/L,NH3-N=25 mg/L。

The Simulation of Emission Limits for Beer Industries Based on OPMSE and BAT

Regarding emission concentration of COD ,BOD and NH3 -N for beer industry wastewater by OPMSE simulation calculation as the object of study ,concentrations of COD ,BOD and NH3 -N in typical beer industry wastewater along Qinghe River Basin are investigated and after treatment of BAT ,through the OPMSE simulation calculation ,it is found out the concentrations of each indexes in the discharged wastewater in conditions of pollutants concentration normal distribution confidence interval ,the optimum effluent and the worst effluent .The results show that :when the confidence level is 99%and the confidence interval of COD ,BOD and NH3 -N is(75 .83 ,95 .95) ,(19 .30 ,25 .88)and(5 .68 ,6 .85)respectively , the concentrations of the optimum effluent are COD=4 .14 mg/L ,BOD=5 .36 mg/L and NH3 -N=2 .71 mg/L respective-ly and the concentrations of the worst effluent are COD=20 .64 mg/L ,BOD=20 .70 mg/L ,NH3 -N=10 .86 mg/L .A comparison conducted between the emission standards and simulation results indicates that the direct emission limits of beer industry are stipulated as COD=100 mg/L ,BOD=30 mg/L and NH3 -N=8 mg/L and the indirect emission limits stipu-lated as COD=400 mg/L ,BOD=80 mg/L and NH3 -N=25 mg/L .