复合藻-菌净化系统处理麦秆造纸废液初步研究  

Primary Studies on Purification Effects of Treatment Model of Alga-bacteria System on Wheat Stalk Paper-making Waste Water

作　　者：饶本强[1,2] 张列宇[2] 陈坤[1] 

机构地区：[1]信阳师范学院生命科学学院,河南信阳464000 [2]中国科学院水生生物研究所淡水生态与生物技术国家重点实验室,湖北武汉430072

出　　处：《信阳师范学院学报（自然科学版）》2009年第4期593-597,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：信阳师范学院青年科学基金资助项目(20060206);信阳师范学院青年骨干教师资助计划项目

摘　　要：在室内模拟条件下,采用正交设计法建立了一种由蛋白核小球藻(Chlorella pyrenoidosa)、鱼腥藻7120(Anabaena sp.PCC7120)、硝化细菌(Nitrate bacteria)和荚膜红假单胞菌(Rhodopseudomonas capsulata)组成的复合藻-菌净化系统去除造纸废液中有机质和氨态氮的最优化模型,确定了藻类与细菌的最优化数量配比关系为蛋白核小球藻∶鱼腥藻7120∶硝化细菌∶荚膜红假单胞菌=1∶2.17∶2.83∶5.09.比较了复合藻-菌净化系统最优化模型与单藻、单菌去除造纸废液中有机质和氨态氮的代谢速率的差异.结果显示,复合藻-菌系统代谢有机质、氨态氮的速率远高于单藻、单菌,其去除率分别为91.3%、79.2%;39.9%、22.7%;58.6%、68.9%.研究了光照强度和温度等生态因子对复合藻-菌净化系统最优化模型代谢有机质和氨态氮的影响.结果表明,在光照与黑暗条件下,复合藻-菌系统代谢有机质和氨态氮的速率存在明显差异,黑暗有利于有机质代谢而光照利于氨态氮的去除.藻-菌系统对有机质和氨态氮的代谢能力与系统的环境温度相关.Laboratory experiments were conducted to investigate a most optimized purification model of algae-bacteria system which consisted of Chlorella pyrenoidosa, Anabaena sp. PCC7120, Nitrate bacteria and Rhodopseudomonas capsulate applied to remove organic matter （COD=） and NH4＋ -N in wheat stalk paper-making waste water by means of the orthogonal test design, and most optimized ratio of algae and bacteria （i. e. , Chlorella pyrenoidosa： Anabaena sp. PCC7120： Nitrate bacteria： Rhodopseudomonas capsulate） was 1： 2.17： 2.83： 5.09. The differences of metabolic rates for removal of CODe, and NH4＋ -N between the most optimized purification model of algae-bacteria system, the single al- gae and the single bacteria were compared. The results indicated that there were higher metabolic rates for algae-bacte- ria system to remove CODcr and NH4＋ -N than those of the single algae and the single bacteria, and their removal rates were 91.3% , 79.2% , 39.9% , 22.7% , 58.6% and 68.9% , respectively. The effects of some ecological factor such as illumination intensity and temperature on the algae-bacteria system applied to remove CODcr and NH4＋ -N were investigated. It showed that there was obvious difference in the metabolic rates of CODe, and NH4＋ -N between dark con- dition and light condition when the algae-bacteria system was used to deal with wheat stalk paper-making waste water, and the condition of light was proved to avail to remove NH4＋ -N for the algae-bacteria system but the dark condition was more beneficial for the system in removing CODe,. Also, it was found in the study that the metabolic rate of the algae- bacteria system for removal of CODcr and NH4＋ -N was correlative with temperature.

关 键 词：复合藻-菌净化系统 麦秆造纸废液 藻-菌数量配比 有机质代谢 氨态氮去除 

分 类 号：S932.9[农业科学—渔业资源]