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作 者:刘婷婷 Liu Tingting(Tianjin Gangyuan Water Quality Monitoring Co.,Ltd.,Tianjin 300280,China)
机构地区:[1]天津市港源水质监测有限公司,天津300280
出 处:《供水技术》2022年第5期34-37,共4页Water Technology
摘 要:针对滨海新区冬季双水源供水时致嗅物质超标的情况,以Y水库原水、E水库原水为研究对象。对原水采用分段预投炭、不同比例掺混的方法进行预处理,后续模拟水厂水处理工艺进行混凝和砂滤小试,达到水厂水源切换后出厂水水质平稳的目的。结果表明对致嗅物质及其他关键指标的去除效果明显,出厂水土臭素<5 ng/L,2-甲基异莰醇为6.8 ng/L,藻类、叶绿素、耗氧量去除率分别达到97.4%、97.1%和45.9%,水质符合国家标准和企业标准。In view of the excessive odor substances caused by dual water supply in the Binhai New Area in winter, the raw water of the Y reservoir and the E reservoir are taken as the research objects. The raw water was pretreated by pre-adding carbon in sections and mixing in different proportions. The subsequent small-scale coagulation and sand filtration tests were carried out to simulate the water treatment process of the water plant, so as to achieve the purpose of stable water quality after the water source is switched. The results showed that the removal effect of odor causing substances and other key indicators was obvious. The water and soil odor was less than 5 ng/L, 2-MIB was 6.8 ng/L, and the removal rates of algae, chlorophyll and oxygen consumption reached 97.4%, 97.1% and 45.9% respectively. The water quality met the national and enterprise standards.
关 键 词:致嗅物质 水源切换 土臭素(GSM) 2-甲基异莰醇(2-MIB)
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