【摘要】 用海藻酸钠作包埋剂固定优势菌种(枯草芽孢杆菌、白曲霉菌、葡萄球菌)处理NH3和H2S。考察了气体流量、NH3和H2S气体浓度、循环液喷淋量对NH3和H2S去除效果的影响。固定化生物滴滤反应器最佳运行条件为:气体流量1.0m3/h、循环液喷淋量8.88L/h、进气H2S质量浓度低于51.85mg/m3、进气NH3质量浓度低于57.21mg/m3。处理NH3和H2S的最大容积负荷分别为634.1g/(m3·d)和699.6g/(m3·d)。处理后出气中的NH3和H2S的质量浓度分别达到GB14554—93《恶臭污染物排放标准》中的一级排放标准和二级排放标准。更多还原

【Abstract】 Malodorous gas containing NH₃ and H₂S was treated by immobilized dominant bacteria including Bacillus subtilis,Aspergillus sp.and Staphylococcal sp.using sodium alginate as entrapping agent.The effects of gas flow,concentrations of NH₃ and H₂S and spray flow of circulating liquid on the removal efficiency of NH₃ and H₂S were investigated.The optimum running conditions of the bio-trickling filter are as follows:gas flow 1.0m3/h,spray flow of circulating liquid 8.88L/h,the mass concentration of NH₃ in the inlet gas below 51.85mg/m3 and that of H₂S below 57.21mg/m3.The maximum volumetric loadings for NH₃ and H₂S treatment are 634.1g/（m3·d）and 699.6g/（m3·d）respectively.The mass concentration of NH₃ and H₂S in the outlet gas can meet the first and second grade of the National Emission Standards for Odor Pollutants GB 14554—93,respectively.更多还原