摘要
硫酸盐木浆厂排出的蒸发冷凝水具有高温、高浓度、营养物质含量低等特点，并含有一定浓度的挥发性恶臭硫化合物．本研究采用空气吹脱-UASB流程处理此类废水．结果表明，70％～80％的挥发性有机硫化物能够在气提过程中被去除，除硫后的蒸发冷凝水在UASB反应器中能够得到有效处理，当COD容积负荷达到30kg·（m^3·d）叫时，COD去除率仍能保持在95％左右．另一方面，试验开始时接种的颗粒污泥在反应器中破碎并逐渐被新形成的颗粒污泥代替，扫描电镜观察显示，新形成的颗粒污泥具有与接种污泥不同的微生物相．
Evaporator condensate from a kraft pulp mill is characterized by high temperature, high strength, poor nutrition, and some odor and inhibitive materials. In this study, air stripping -UASB process was developed to treat the wastewater from a kraft pulp mill. The lab scale study demonstrated that air stripping process removed 70 % - 80 % of the volatile organic sulfur compounds. After that, the UASB reactor showed high efficiency, at the organic loading rate （COD） of 30 kg· （m^3·d） 1, COD removal was retained about 95%. On the other hand, the inoculated granules were broken in the new surroundings and were replaced with the newly formed granules The scanning electronic microscope （SEM） observation showed wide difference of the predominant anaerobic microorganisms in the seed and newly formed granules.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2006年第4期681-685,共5页
Environmental Science
