硫酸盐还原菌颗粒污泥形成条件研究

A study on the forming conditions of sulfate reducing bacteria granular sludge.

在生物反应器中培养出高活性的生物相是使其稳定、高效运行的关键．在上流式厌氧污泥床反应器中，对硫酸盐还原菌颗粒污泥形成过程及形成条件进行了研究，结果表明，在中温（３５ ±１ ℃） 条件下，当进水 Ｓ Ｏ２ －４ 小于１６００ ｍ ｇ／ Ｌ、 Ｃ Ｏ Ｄ／ Ｓ Ｏ２ －４ 大于３ 时，控制反应器污泥负荷大于０ ．３ｋｇ Ｓ Ｏ２ －４ ／ｋｇ Ｖ Ｓ Ｓ·ｄ 、水力负荷为０ ．２ ｍ ３／ ｍ ２·ｈ 有利于颗粒污泥的形成和生长．

To cultivate highly active microorganism is key to stable and efficient operation of the bio-reactor. The forming conditions for and the process of sulfate reducing bacteria sludge granulation were studied in the upflow anaerobic sludge blank reactor.The results showed that the loading rate above 0.3kgSO 2- 4/kgVSS·d and hydraulic loading rate of 0.2m 3/m 2·h were beneficial to form the granular sludge, when influent SO 2- 4 was under 1600mg/L and COD/SO 2- 4 was more than 3, at 35±1℃.