Chen Chuan, Wang Aijie, Ren Nanqi, Deng Xuliang, Lee Duu-Jong
State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
Water Sci Technol. 2009;59(4):833-7. doi: 10.2166/wst.2009.058.
Denitrifying sulfide removal (DSR) process incorporates interactions between autotrophic and heterotrophic denitrifiers and reveals difficulty to achieve high removal rate of nitrogen and sulfur in practice. We compared the DSR performance of an expanded granular sludge bed (EGSB) reactor and an upflow anaerobic sludge blanket (UASB) reactor, both fed with wastewaters comprising sulfide, nitrate and acetate. The EGSB reactor can sustain at higher loading rates than UASB reactor, probably owing to the less elemental sulfur production rate for the latter in operation.
反硝化除硫（DSR）工艺涉及自养反硝化菌和异养反硝化菌之间的相互作用，并且在实际应用中实现氮和硫的高去除率存在困难。我们比较了膨胀颗粒污泥床（EGSB）反应器和上流式厌氧污泥床（UASB）反应器的DSR性能，这两种反应器均采用含有硫化物、硝酸盐和乙酸盐的废水进料。EGSB反应器能够比UASB反应器维持更高的负荷率，这可能是由于后者在运行中产生元素硫的速率较低。
