炼油污水处理装置恶臭气体源强估算方法的比较

Comparison of Estimation Methods for Malodorous Gas Source Intensity of Refinery Wastewater Treatment Plant

以某炼油污水处理装置为例,根据其运行现状及恶臭气体的监测结果,使用卫生防护距离反推法、源强经验估算法以及地面浓度反推法3种方法对恶臭气体源强进行估算,并利用AERMOD模式进行预测,对预测值与监测值进行方差分析。实验结果表明:在监测得到的NH3和H2S的平均质量浓度分别为0.113,0.006 mg/m3的条件下,卫生防护距离反推法得到的NH3和H2S的无组织排放源强分别为2.395,0.127 kg/h。源强经验估算法得到的NH3和H2S的源强分别为0.255,0.080 kg/h,地面浓度反推法得到的NH3和H2S的源强分别为3.120,0.250 kg/h;源强经验估算法为炼油污水处理装置气体源强估算的最优方法。

Taking a refinery wastewater treatment plant as an example and according to the malodorous gas monitoring results and the operating situation, the malodorous gas source intensity was estimated by 3 methods： health protection zone reverse calculation, source intensity experience calculation and ground concentration reverse calculation. The AERMOD model was used to forecast the results and variance analysis was carried out on the prediction values and monitoring values. The experimental results show that： When the prediction values of NH3 and H2S average mass concentrations are 0.113 mg/m^3 and 0.006 mg/m^3, the fugitive emission source intensities of NH3 and H2S are 2.395 kg/h and 0.127 kg/h by the health protection zone reverse calculation method, 0.255 kg/h and 0.08 kg/h by the source intensity experience calculation method, 3.120 kg/h and 0.250 kg/h by the ground concentration reverse calculation method. The best method for estimation of gas source intensity of refinery wastewater treatment plant is the source intensity experience calculation method.