酸性预处理污泥对厌氧生物制氢的影响

Impacts of acid pretreated municipal sludge on anaerobic bio-hydrogen production

研究了在酸性条件下预处理污泥对厌氧发酵产氢的影响,从以下4个因素讨论:污泥酸处理pH、酸处理时间、污泥浓度和搅拌转速。结果表明:污泥的酸处理时间对产氢性能影响最显著;pH为3、污泥酸处理3.0 h、污泥浓度16.00 g/L和搅拌转速120 r/min为最佳预处理条件。在此处理条件下的污泥厌氧发酵产氢快、产氢速率相对稳定、产氢量最高。

This paper studies the impacts of pretreated municipal sludge on the anaerobic fermentation for hydrogen production in the acidic condition.Four factors are discussed as follow,the pH value of sludge pretreated by acid,the acid treatment time,the sludge concentration and the stirring speed.The results show that the most significant effect on the performance of hydrogen production is the acid treatment time.The best pretreated conditions are the pH value equals to 3,sludge pretreated by acid for 3 hours,the sludge concentration is 16.00 g/L and the stirring speed is 120 r/min.The speed of sludge anaerobic fermentation for hydrogen production is fast,the rate of hydrogen production is relatively stable and the hydrogen production is the highest under these conditions.