白腐真菌-活性污泥联合处理棉浆黑液的研究  

Treatment of cotton pulp black liquor by white rot fungi-activated sludge

作　　者：赵丽红[1] 金若菲[2] 孙洪军[1] 高艳娇[1] 

机构地区：[1]辽宁工业大学土木建筑工程学院,辽宁锦州121001 [2]大连理工大学环境与生命学院,辽宁大连116024

出　　处：《生态环境学报》2009年第2期422-425,共4页Ecology and Environmental Sciences

基　　金：国家自然科学基金项目(50808029)

摘　　要：棉浆黑液是一类较难处理的工业有机废水,其中含有大量木质素,木质素不仅是化纤工业废水中主要污染物,而且也是造纸工业的副产物,由于得不到充分利用,变成环境污染物,严重污染了环境。因此,迫切需要一种高效低成本的处理方法来解决这一问题。为了有效处理化纤厂棉浆黑液,采用以白腐真菌糙皮侧耳(Pleutrotus ostreatus)B1为降解菌的鼓泡塔反应器与活性污泥法联合处理棉浆黑液,初步摸索可行的处理工艺并确定相关参数。棉浆黑液经鼓泡塔反应器预处理、活性污泥法后处理,废水COD去除率为94%～97%,出水COD低于国家污水三级排放标准(1000mg·L-1)。将白腐真菌糙皮侧耳B1投加到活性污泥中,逐渐增加进水负荷,COD去除率为55%～83%,明显好于活性污泥单独处理工艺。实验结果表明了白腐真菌-活性污泥联合处理棉浆黑液是可行的。Cotton pulp black liquor is an industrial organic wastewater which is difficult to deal with. The primary contributor to the color and toxicity of black liquor is the high-molecular-weight lignin. Lignin is not only the main pollutant of chemical fiber indus- tries, but also the by-products of the pulp and paper industries. Because of underutilized in the past, lignin has become one of the major contaminants in the environment. So a high efficiency and low cost approach is urgently required to solve this problem. White rot fungi （Pleuroms ostreatus）-activated sludge process was investigated aiming to effectively treat cotton pulp black liquor in chemical fiber factories. Two treatment methods were studied. The results show that the COD removal rate of black liquor was 94%-97% after being treated by the process of white rot fungi as a pretreatment and the activated sludge as a post-treatment. The residual COD in black liquor is less than 1 000 mg.L^-1, which meets the national integrated wastewater discharge standard III. When the influent organic loads are gradually increased, the COD removal rate of activated sludge added with P. ostreatus is 55%-83%, which is higher than that using activated sludge treatment process alone. It indicates that white rot fungi-activated sludge process is feasible for application to cotton pulp black liquor.

关 键 词：白腐真菌 糙皮侧耳 活性污泥 棉浆黑液 木质素 

分 类 号：X703[环境科学与工程—环境工程]