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2013-2015年成都市郫都區(qū)幼兒園分散式供水情況及水質(zhì)分析

發(fā)布時間:2018-06-01 04:55

  本文選題:幼兒園 + 分散式供水 ; 參考:《現(xiàn)代預(yù)防醫(yī)學(xué)》2017年13期


【摘要】:目的全面了解成都市郫都區(qū)幼兒園分散式供水現(xiàn)狀及水質(zhì)情況,為其水質(zhì)改進提供依據(jù)。方法采用統(tǒng)一調(diào)查表對郫都區(qū)使用分散式供水的幼兒園進行調(diào)查,按照GB/T 5750.2-2006和GB 5749-2006對水樣進行檢驗和評價。結(jié)果全區(qū)采用分散式供水的幼兒園水源均為地下水,2013年制定了飲用水管理制度的占82.1%(78/95),有消毒凈化設(shè)備的占76.8%(73/95),僅消毒的占52.6%(50/95),僅凈化的占24.2%(23/95),定期清洗水箱的占89.4%(85/95);2015年以上項目所占比例均有不同程度提高。2013-2015年共采集郫都區(qū)分散式供水幼兒園井水樣本251份,水質(zhì)總合格率為83.7%;各年水質(zhì)合格率分別為86.3%、78.3%、86.3%,差異無統(tǒng)計學(xué)意義(=2.59,P≥0.05);14個鎮(zhèn)中只有兩個鎮(zhèn)的水質(zhì)總合格率為100%;不合格指標(biāo)有微生物、鐵、錳、色度、渾濁度、硝酸鹽、氨氮、臭和味、總硬度。結(jié)論郫都區(qū)幼兒園分散式供水的現(xiàn)況不容樂觀,應(yīng)加強分散式供水設(shè)備的管理及水質(zhì)的凈化消毒。
[Abstract]:Objective to understand the present situation and water quality of distributed water supply in kindergartens of Yudu District, Chengdu, and to provide basis for its water quality improvement. Methods A unified questionnaire was used to investigate the kindergartens using distributed water supply, and the water samples were tested and evaluated according to GB/T 5750.2-2006 and GB5749-2006. Results the water sources of kindergartens with decentralized water supply in the whole region were groundwater. In 2013, 82.1% of the kindergartens had established a drinking water management system, 76.8 / 95% of them had disinfection equipment, 52.6% / 95% of them were only sterilized, 24.22% of them were purified, 89.4% were regularly cleaned of water tanks, 85% / 95% of water tanks were cleaned regularly in 2015. The proportion of the above projects has increased to varying degrees. In 2013-2015, a total of 251 samples of well water from decentralized water supply kindergartens in Yudu District were collected. The total qualified rate of water quality is 83.7; the qualified rate of water quality in each year is 86.3 and 78.3 respectively. There is no significant difference between them (2.59% P 鈮,

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