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生态学杂志 ›› 2012, Vol. 31 ›› Issue (07): 1882-1886.

• 方法与技术 • 上一篇    

固定化微生物处理模拟污染地表水

魏小娜1,2,李刚1**,吴波1,郭书海1,郑涛3   

  1. (1中国科学院沈阳应用生态研究所, 沈阳 110016;2中国科学研究生院, 北京 100049; 3沈阳市北部污水处理厂, 沈阳 110016)
  • 出版日期:2012-07-10 发布日期:2012-07-10

Using immobilized microorganism to treat synthetic polluted surface water.

WEI Xiao-na1,2, LI Gang1**, WU Bo1, GUO Shu-hai1, ZHENG Tao3   

  1. (1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3Shenyang Northern Sewage Treatment Plant, Shenyang 110016, China)
  • Online:2012-07-10 Published:2012-07-10

摘要: 以聚乙烯醇和海藻酸钠为包埋剂、驯化后的活性污泥为包埋菌剂,制备固定化微生物颗粒,其中包埋剂与包埋菌剂的比例为2∶1。将该固定化微生物颗粒按20%的填充率装填到自制反应器中,用于处理模拟污染地表水,研究该固定化微生物的性能特点及其对模拟污染地表水的净化效果。结果表明:固定化微生物反应器的最佳水力停留时间为10 h,最佳进水COD负荷为1.15~1.85 g·L-1·d-1。在水温为20~29 ℃、溶解氧为3~4 mg·L-1、水力停留时间为10 h的条件下,当进水COD浓度为70.58~91.76 mg·L-1、铵氮浓度为13.68~17.82 mg·L-1时,COD去除率>62.3%,铵氮去除率>90.6%,表明固定化微生物能够有效地去除污染地表水中的COD和铵氮。

关键词: 大麦,  , 磷高效基因型,  , 根系形态,  , 磷素吸收

Abstract: Taking the polyvinyl alcohol and sodium alginate as embedding agent and the domesticated activated sludge as embedding microbial agent, immobilized microbial granules were prepared with the embedding agent and embedding microbial agent in a ratio of 2∶1. The prepared granules were loaded into a homemade reactor in a filling rate of 20%, and the reactor was used for treating synthetic polluted surface water. The performance of the immobilized microbial granules and their pollutant removal efficiency were investigated. The results showed that the optimum hydraulic retention time (HRT) and influent COD loading rate were 10 h and 1.15-1.85 g·L-1·d-1, respectively. At water temperature 25-29 ℃, DO concentration 3-4 mg·L-1, and HRT 10 h, and when the influent COD and NH4+-N were 70.58-91.76 mg·L-1 and 13.68-17.82 mg·L-1, respectively, more than 62.3% of the COD and more than 90.6% of the NH4+-N were removed. It was suggested that the immobilized microbial granules could effectively remove the COD and NH4+-N from polluted surface water.

Key words: barley, phosphorus efficient genotype, root morphology, phosphorus uptake.