| 污泥酸性发酵获取碳源的研究 |
| |
| 引用本文： | 宋秀兰,刘涛,李亚新.污泥酸性发酵获取碳源的研究[J].北京工业大学学报,2012,38(3):462-466. |
| |
| 作者姓名： | 宋秀兰 刘涛 李亚新 |
| |
| 作者单位： | 太原理工大学环境科学与工程学院,太原,030024 |
| |
| 基金项目： | 国家自然科学基金资助项目，山西省科技攻关项目 |
| |
| 摘 要： | 城市污水生物脱氮除磷过程中普遍存在碳源不足的问题,拟采用城市污水处理厂产生的污泥进行酸性发酵以开发碳源.试验考察了序批式反应器半连续运行时进料ρ(VS)、水力停留时间(HRT)、pH值和温度对污泥酸性发酵的影响.推荐污泥酸性发酵获取碳源的工艺条件:温度38℃、HRT为3 d、pH6.0、进料ρ(VS)20 g/L.在此工况下,挥发分为67.97%时,污泥产酸率为0.133～0.156 gVFA/(gVS.d),容积产酸速率为0.805～0.948 gVFA/(L.d),VS去除率为32.53%～45.60%;系统运行稳定,污泥的减量化效果好.
|
| 关 键 词： | 污泥 酸性发酵 碳源 产酸率 |
Gaining Carbon Source From the Sludge Acidogenic Fermentation Process |
| |
| SONG Xiu-lan,LIU Tao,LI Ya-xin.Gaining Carbon Source From the Sludge Acidogenic Fermentation Process[J].Journal of Beijing Polytechnic University,2012,38(3):462-466. |
| |
| Authors: | SONG Xiu-lan LIU Tao LI Ya-xin |
| |
| Affiliation: | (College of Environment Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China) |
| |
| Abstract: | Carbon source insufficiency is a common problem in the biological nutriemt removal of municipal wastewater.In this paper,sludge from a municipal wastewater treatment plant is used for gaining carbon source through anaerobic acidogenic fermentation.Effects of feed VS concentration,hydraulic residence time(HRT),pH,and temperature on the sludge acidogenic fermentation process are investigated in the sequencing batch reactor with a semi-continuous operation mode.Recommendation conditions of sludge acidogenic fermentation to gain carbon source are the temperature of 38 ℃,HRT of 3 d,pH6.0,and feed ρ(VS) of 20 g/L.When the volatile solid content is 67.97%,the acid yield rate of sludge is 0.133-0.156 gVFA/(gVS·d),total acid productivity is 0.805-0.948 gVFA/(L·d),and the removal ratio of VS is 32.53%-45.60%.The stable acidogenic fermentation process can be kept in this condition,and the effect of sludge reduction is significant. |
| |
| Keywords: | sludge acidogenic fermentation carbon source acid yield rate |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
