| 总磷作为饮用水生物稳定性控制指标的研究 |
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| 引用本文： | 桑军强,张锡辉,周浩晖,王占生.总磷作为饮用水生物稳定性控制指标的研究[J].水科学进展,2003,14(6):720-724. |
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| 作者姓名： | 桑军强 张锡辉 周浩晖 王占生 |
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| 作者单位： | 1.清华大学深圳研究生院环境工程与管理研究中心, 广东, 深圳, 518057; |
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| 基金项目： | 科技部重大科技资助项目(9550610400 05 03)~~ |
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| 摘 要： | 根据国内提出的控制饮用水生物稳定性的可同化有机碳(AOC)标准,通过配制水样研究了AOC及细菌再生长潜力(BRP)同水中磷含量的关系;同时针对净水工艺试验出水水样,考察了水中的磷同其生物稳定性的关系。结果表明,对于配水水样,在一定的磷浓度范围内,磷是水中细菌生长的限制因子;在净水试验工艺出水水样中添加50μg/L的PO43--P后,AOC增加了55%,BRP增加了123%,表明水中磷是其生物稳定性的限制因子。由于常规的净水工艺对水中的磷可以有效去除,把水中总磷(TP)控制在5μg/L内来提高饮用水生物稳定性具有一定的可能性和现实性。
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| 关 键 词： | 饮用水 生物稳定性 总磷 可同化有机碳 细菌再生长潜力 控制指标 |
| 文章编号： | 1001-6791(2003)06-720-05 |
| 收稿时间： | 2002-08-22 |
| 修稿时间： | 2002年8月22日 |
Study on total phosphorus as controlling parameter of drinking water biological stability |
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| SANG Jun-qiang,ZHANG Xi-hui,ZHOU Hao-hui,WANG Zhan-sheng.Study on total phosphorus as controlling parameter of drinking water biological stability[J].Advances in Water Science,2003,14(6):720-724. |
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| Authors: | SANG Jun-qiang ZHANG Xi-hui ZHOU Hao-hui WANG Zhan-sheng |
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| Affiliation: | 1.Research Center for Environmental Engineering & Management, Shenzhen Graduate School, Tsinghua University, Shenzhen 518057, China;2.Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | The effect of phosphorus on the assimilable organic carbon (AOC) and the bacterial regrowth potential (BRP) in deionized water with necessary nutrients addition is studied.It is shown that phosphorus would become the limiting factor on bacterial regrowth when its concentration is low enough.At the same time,pilot-scale drinking water treatment processes are used to treat the raw water and the effect of phosphorus on the biological stability of the treated water was studied.It was shown that after 50μg/L PO43--P was added to the treated water,the AOC of the treated water increased 55% and the BRP increased 123%.This indicated thatphosphorus was the limiting nutrient of bacterial regrowth in the treated water.Because the conventional drinking water treatment processes could effectively remove phosphorus from raw water,the results got in the experiment indicated the possibility and feasibility of ensuring the total phosphorus(TP) in drinking water less than 5 μg/L to restrict microbial regrowth in drinking water distribution system in China. |
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| Keywords: | drinking water biological stability total phosphorus assimilable organic carbon bacterial regrowth potential controlling parameter |
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