不同磷源对厌氧活性污泥产生磷化氢的影响  

Effects of Different Phosphorus Sources on Phosphine Production from Anaerobic Sludge

作　　者：孙亮[1] 张朝升[1] 张可方[1] 荣宏伟[1] 刘涛[1] 

机构地区：[1]广州大学教育部广东省珠江三角洲水质安全与保护实验室,广东广州510006

出　　处：《中国给水排水》2012年第21期89-91,共3页China Water & Wastewater

基　　金：国家自然科学基金资助项目(50878058);广东省自然科学基金重点资助项目(9251009101000001);广东省自然科学基金资助项目(9251009101000021);广州市科技计划项目(2010Z1-E051)

摘　　要：通过动态试验,研究了5种不同磷源(磷酸二氢钾、磷酸氢二钾、六偏磷酸钠、次磷酸钾、亚磷酸钠)对厌氧活性污泥产生磷化氢的影响。结果表明,以次磷酸钾为磷源时,TP浓度与磷化氢产量呈较好的负线性关系,相关系数为-0.93,且磷化氢的产量最大,达到495.36 ng/L;而当以六偏磷酸钠为磷源时,TP浓度与磷化氢产量的线性相关性最差,相关系数为-0.62,且磷化氢的产量最低,为289.65 ng/L。可见,次磷酸盐更容易被微生物利用产生磷化氢。考察了次磷酸钾浓度对磷化氢产量的影响,结果表明,次磷酸钾浓度太高会抑制磷化氢的产生,次磷酸钾浓度为50mg/L左右时,磷化氢的产量最大。The effects of five kinds of phosphorus sources （potassium dihydrogen phosphate, dipotassium hydrogen phosphate, sodium hexametaphosphate, potassium hypophosphite and sodium hypophosphite） on phosphine production from anaerobic activated sludge were studied in dynamic experiments. The results showed that when potassium hypophosphite was used as the phosphorus source, there was a strong negative linear relationship between TP concentration and phosphine production. The corre- lation coefficient was - 0.93, and the maximum production of phosphine was 495.36 ng/L. When sodium hexametaphosphate was used as phosphorus source, a weak linear relationship was observed between TP concentration and phosphine production. The correlation coefficient was - 0.62, and the minimum production of phosphine was 289.65 ng/L. Hypophosphite was more likely to be used by microorganisms for production of phosphine. The effect of different concentrations of potassium hypophosphite on phos- phine production was further investigated, and the result displayed that higher concentration of potassium hypophosphite would inhibit phosphine production. The maximum production of phosphine was achieved at potassium hypophosphite concentration of about 50 mg/L.

关 键 词：磷酸盐 磷化氢 厌氧活性污泥 

分 类 号：X703[环境科学与工程—环境工程]