| 管网水限制性营养元素对微生物再生长的影响 |
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| 引用本文： | 齐枝花,赵阳,陈海棠,邬卓颖,于鑫.管网水限制性营养元素对微生物再生长的影响[J].环境科学与管理,2012,37(10):109-112. |
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| 作者姓名： | 齐枝花 赵阳 陈海棠 邬卓颖 于鑫 |
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| 作者单位： | 1. 台州市环境科学设计研究院,浙江台州,318000
2. 中国科学院城市环境研究所中国科学院城市环境与健康重点实验室,福建厦门,361021 |
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| 基金项目： | 浙江省台州市软课题社会发展类重点项目 |
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| 摘 要： | 考察C、N、P等饮用水中的限制性营养元素对微生物再生长的影响。结果表明,磷是管网中细菌生长的主要限制因子,饮用水最适合细菌生长的最佳C∶P为100∶5。另外,对于管网微生物而言,乙酸碳等易降解有机物是一种更容易被利用的有机物。因此,在饮用水处理过程中应尽可能地去除原水中磷,使出厂水TP控制在5μg/L以下,同时要防止饮用水被一些有机物特别是小分子易降解有机物污染,以确保饮用水安全。
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| 关 键 词： | 生物可同化有机碳 生物可利用磷 管网 生物稳定性 |
Restrictive Nutrients in Pipe Network and Their Impacts on Biofilm Formation |
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| Qi Zhihua,Zhao YangI,Chen Haitang,Wu Zhuoying,Yu Xin.Restrictive Nutrients in Pipe Network and Their Impacts on Biofilm Formation[J].Environmental Science and Management,2012,37(10):109-112. |
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| Authors: | Qi Zhihua Zhao YangI Chen Haitang Wu Zhuoying Yu Xin |
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| Institution: | 2 ( 1. Taizhou Academy of Environmental Science Research ＆ Design, Taizhou 318000, China; 2. Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China) |
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| Abstract: | The impacts of C, N and P on bacteria regrowth in pipe networks were studied. The results showed that P acted as the major restrictive factor for bacteria growth in pipe network; while the drinking water was most suitable for bacterial growth when the C ：P ratio is 100：5. In addition, easily biodegradable organic compounds, such as acetic acid carbon were adaptable to the network micro - organisms. Therefore, P in raw water should be removed as much as possible in a bid to keep the total P to less than 5 μg/L in the drinking water treatments process. In order to ensure drinking water safety, drinking water should be pre- vented from contamination by organic compounds, especially easily biodegradable micro -organic compounds. |
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| Keywords: | bio -assimilable organic carbon bio -available phosphorus pipe network biological stability |
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