管网水限制性营养元素对微生物再生长的影响  

Restrictive Nutrients in Pipe Network and Their Impacts on Biofilm Formation

作　　者：齐枝花[1] 赵阳[1] 陈海棠[1] 邬卓颖[2] 于鑫[2] 

机构地区：[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

出　　处：《环境科学与管理》2012年第10期109-112,共4页Environmental Science and Management

基　　金：浙江省台州市软课题社会发展类重点项目(2010A432000)

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。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.

关 键 词：生物可同化有机碳 生物可利用磷 管网 生物稳定性 

分 类 号：X523[环境科学与工程—环境工程]