泥炭生物过滤器脱除复合恶臭气中的 H2S

摘要

Deodorization of hydrogen sulfide in laboratory prepared complex malodorous gas containing hydrogen sulfide, dimethyl-disulfide and toluene by peat bio-filter, and the presence of dimethyl-disulfide and toluene in the gas on the effect of hydrogen sulfide removal were studied respectively. The results showed that the hydrogen sulfide removal rate was about 100% and could be kept for a long time at an inlet load of hydrogen sulfide less than 45g/m3*h. The effect of reaction temperature on hydrogen sulfide removal was significant, the appropriate temperature was higher than 20 ℃. The malodorous gas containing dimethyl-disulfide and toluene showed little effect on hydrogen sulfide removal. The said deodorization method is proposed to purify the malodorous gas from wastewater treatment.%在实验室以配制的含 H2S 复合恶臭气为对象，研究 H2S 的生物脱除工艺及二甲基二硫化物、甲苯的存在对 H2S 脱除的影响。结果表明， H2S 入口负荷在45 g/(m3*h)以下时，H2S 脱除率可接近100%，并保持长时间的恒定，负荷波动幅度可达到30.3 g/(m3*h)。反应温度对 H2S 脱除有较大影响，适宜的反应温度为20 ℃以上；甲苯、二甲基二硫化物的存在对 H2S 的生物脱除基本没有影响。该工艺可用于净化污水处理场排放的恶臭气体。