| Study on Algae Removal by Immobilized Biosystem on Sponge |
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| 作者姓名： | PEI Haiyan HU Wenrong |
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| 作者单位： | [1]College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, P. R. China [2]Shandong Provincial Engineering Center on Environmental Science and Technology, Jinan 250061, P.R. China [3]School of Environmental Science and Engineering, Shandong University, Jinan 250061, P.R. China |
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| 摘 要： | In this study, sponges were used to immobilize domesticated sludge microbes in a limited space, forming an immobilized biosystem capable of algae and microcystins removal. The removal effects on algae, microcystins and UV260 of this biosystem and the mechanism of algae removal were studied. The results showed that active sludge from sewage treatment plants was able to remove algae from a eutrophic lake＇s water after 7 d of domestication. The removal efficiency for algae, organic matter and microcystins increased when the domesticated sludge was immobilized on sponges. When the hydraulic retention time （HRT） was 5h, the removal rates of algae, microcystins and UV260 were 90%, 94.17% and 84%, respectively. The immobilized biosystem consisted mostly of bacteria, the Ciliata and Sarcodina protozoans and the Rotifer metazoans. Algal decomposition by zoogloea bacteria and preyingby microcreatures were the two main modes of algal removal, which occurred in two steps： first, absorption by the zoogloea; second, decomposition by the zoogloea bacteria and the predacity of the microcreatures.
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| 关 键 词： | 水处理 藻类脱除 驯化污泥微生物 海绵 固定化 |
| 收稿时间： | 2006-03-24 |
| 修稿时间： | 2006-08-13 |
Study on algae removal by immobilized biosystem on sponge |
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| PEI Haiyan HU Wenrong.Study on Algae Removal by Immobilized Biosystem on Sponge[J].Journal of Ocean University of China,2006,5(4):327-332. |
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| Authors: | Haiyan Pei Wenrong Hu |
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| Institution: | 1. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, P. R. China
2. Shandong Provincial Engineering Center on Environmental Science and Technology, Jinan 250061, P.R. China;School of Environmental Science and Engineering, Shandong University, Jinan 250061, P.R. China |
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| Abstract: | In this study, sponges were used to immobilize domesticated sludge microbes in a limited space, forming an immobilized biosystem capable of algae and microcystins removal. The removal effects on algae, microcystins and UV 260 of this biosystem and the mechanism of algae removal were studied. The results showed that active sludge from sewage treatment plants was able to remove algae from a eutrophic lake's water after 7 d of domestication. The removal efficiency for algae, organic matter and microcystins increased when the domesticated sludge was immobilized on sponges. When the hydraulic retention time (HRT) was 5 h, the removal rates of algae, microcystins and UV 260 were 90%, 94.17% and 84%, respectively.The immobilized biosystem consisted mostly of bacteria, the Ciliata and Sarcodina protozoans and the Rotifer metazoans. Algal decomposition by zoogloea bacteria and preying by microcreatures were the two main modes of algal removal, which occurred in two steps: first, absorption by the zoogloea; second, decomposition by the zoogloea bacteria and the predacity of the microcreatures. |
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| Keywords: | sponge microbe immobilized algae microcystin |
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