摘要
利用厌氧污泥对有机废水进行了发酵产酸试验，考察了一次进料、多次进料和调节系统pH值为酸性等培养方式对系统产酸效果的影响，并确定了产乙酸效果最佳时的pH值。结果表明，在进水COD约为25000mg／L、温度为（36±1）℃、控制系统pH值在4．0—4．5的条件下，采用多次进料的培养方式，厌氧污泥的产酸效果较好，乙酸为主要末端发酵产物，且pH=4．3时系统的产乙酸效果最佳。
Acidogenic fermentation of organic wastewater by the anaerobic activated sludge was studied. The influence of single feedings, multiple feedings, adjusting the pH to acid level and other cul- tivation modes on the acidogenic result was investigated, and the optimal acidogenic pH value was determined. The results show that under the conditions that the temperature is （36 ± 1 ） ℃, influent COD is 25 000 mg/L and pH is between 4.0 and 4.5, a high production capacity of acetic acid is achieved in the anaerobic activated sludge when using multiple feedings and pH of 4.3.
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第3期64-66,共3页
China Water & Wastewater
关键词
活性污泥
厌氧
发酵产酸
activated sludge
anaerobic
acidogenic fermentation
