一体式A/O反应器中不同碳硫比对除碳脱臭效率的影响

Effect of different COD/SO_4^(2-) ratios in integrated A/O wastewater treatment systems on simultaneous organics and undesirable odor removal

在污水处理领域同步除碳脱臭研究一直是个难题,本实验开发了一种新型同步除碳脱臭一体式A/O反应器,研究了该一体式A/O反应器处理不同碳硫比有机废水时的同步除碳脱臭功能。结果表明,碳硫比为30∶1时,即进水SO24-浓度为133 mg/L,该反应器总COD去除率可达到95%。在进水SO24-浓度不大于400 mg/L时,中间产物臭气硫化氢气可以完全去除,实现了同步除碳脱臭的功能,减少了在有机废水处理过程中的大量臭气的排放。微生物学角度分析,表明污泥中含有大量的硫细菌。

The study of simultaneous carbon removal and deodorization is a challenge in the wastewater treatment field. A novel integrated anaerobic/aerobic reactor for simultaneous carbon removal and deodorization was developed. Results showed that when the COD/SO42- ratio was 30：1, which means the SO42- concentration was 133.3 mg/L, COD removal efficiency reached up to 95%. When the SO42- concentration was less than 400 mg/L, the metabolic intermediates-hydrogen sulfide was removed completely, which decreased the emission of undesirable odor and achieved simultaneous carbon removal and deodorization successfully in organic wastewater treatment process. The microbiologic analysis approved that there are amount of sulfur-oxidizing bacteria contained in the sludge.