不同净水处理工艺出水水质指标AOC、TOC、HPC的变化比较

发布时间：2018-01-12 00:14

本文关键词：不同净水处理工艺出水水质指标AOC、TOC、HPC的变化比较　出处：《净水技术》2015年05期 　论文类型：期刊论文

【摘要】：为了解不同净水工艺处理水中可同化有机物(AOC)、总有机碳(TOC)、异养菌数(HPC)的变化,在取自两个不同水源的三家水厂进行了从进水到出厂水及管网水的各单元工艺出水的测定。结果表明对H江、Q水库而言,TOC高其相对应AOC也高。原水经加氯杀藻或厂内预氯化处理后AOC会有所增加,经过混凝、沉淀、砂滤处理后AOC有所降低,经臭氧活性炭的出水AOC也会有所减少。深度处理工艺出厂水较原水AOC有所减少,常规处理工艺则会出现反超现象。对深度处理水厂来说,经活性炭处理后出水HPC均较进水有所增加,但经加氯胺消毒的出厂水中HPC大为减少。深度处理水厂在处理过程中TOC随工艺过程逐步降低,其中经混凝、沉淀、过滤去除的TOC较后续臭氧活性炭去除的要多。不同出厂水质所引起的管网AOC、HPC的变化规律各不相同,一般水源水质好TOC低,且出厂AOC低,管网水HPC变化就小,三个指标是相关联的。
[Abstract]:In order to understand the changes of assimilable organic matter (AOC), total organic carbon (TOC) and heterotrophic bacteria (HPC) in different water purification processes. Three water plants from two different sources of water were used to measure the effluent of each unit from the influent to the outgoing water and the pipe network water. The results show that for the H River and Q reservoir. The AOC of raw water increased after chlorination or pre-chlorination treatment, and decreased after coagulation, precipitation and sand filtration treatment. The AOC of effluent treated with ozone activated carbon will also be reduced. Compared with the raw water AOC of the advanced treatment process will decrease, while the conventional treatment process will appear the phenomenon of reverse superfluous. For the advanced treatment water plant. The HPC of effluent treated with activated carbon increased compared with that of influent, but the HPC of effluent treated with chloramines decreased greatly. The TOC of advanced treatment water plant decreased gradually with the process of treatment. The TOC removed by coagulation, precipitation and filtration is more than that by subsequent ozone activated carbon removal. The variation law of TOC in pipe network caused by different water quality is different. Generally, the water quality of water source is good, TOC is low, and AOC is low, the change of HPC in pipe water is small, the three indexes are related.
【作者单位】：上海城投水务(集团)有限公司制水分公司;
【分类号】：TU991.2
【正文快照】： 饮用水中的污染物给人类健康带来了两方面的风险:化学毒理性风险和微生物学风险。化学毒理性风险是由于饮用水中含有各种对人体有害有毒的化学物质而造成的,以总有机碳(TOC)作为出水中有机物污染的总体水质指标。微生物风险则是由于饮用水中存在的病原微生物引起的,水的生物稳

【共引文献】