發(fā)布時(shí)間：2018-01-07 04:13

  本文關(guān)鍵詞：小型水廠原水pH值異常升高的應(yīng)對(duì)策略　出處：《中國(guó)給水排水》2016年17期 　論文類型：期刊論文

  更多相關(guān)文章： 小型水廠 原水 pH值 二氧化碳

【摘要】：某水廠采用"混凝/沉淀/過(guò)濾/加氯消毒"常規(guī)處理工藝,混凝劑采用液態(tài)聚合氯化鋁(PAC),消毒劑采用次氯酸鈉溶液。自2015年6月下旬,該地區(qū)一直持續(xù)高溫少雨,原水p H值異常升高,不僅影響到混凝沉淀效果,增加了出廠水鋁含量超標(biāo)的風(fēng)險(xiǎn)(0.20 mg/L),同時(shí)還會(huì)影響后續(xù)消毒效果和消毒副產(chǎn)物生成量,給水廠生產(chǎn)帶來(lái)了嚴(yán)峻挑戰(zhàn)。通過(guò)向原水池通入CO2氣體,調(diào)節(jié)原水p H值至7.20~7.60,使后續(xù)混凝沉淀效果得以改善,并將出廠水濁度和鋁含量控制在較低的水平,達(dá)到了《生活飲用水衛(wèi)生標(biāo)準(zhǔn)》(GB 5749—2006)的要求。
[Abstract]:A conventional treatment process of "coagulation / sedimentation / filtration / chlorination and disinfection" was adopted in a water plant. The coagulant was treated with liquid polyaluminium chloride (PAC) and disinfectant with sodium hypochlorite solution. Since late June 2015. In this area, high temperature and little rain have been sustained, and the pH value of raw water has been increasing, which not only affects the effect of coagulation and precipitation, but also increases the risk of water aluminum content exceeding the standard by 0.20 mg / L). At the same time, it will affect the disinfection effect and the amount of disinfection by-products, which brings a severe challenge to the production of water plant. Through the introduction of CO2 gas to the original pool, adjust the pH value of raw water to 7.20 ~ 7.60. The effect of subsequent coagulation and precipitation was improved, and the turbidity and aluminum content of the water were controlled to a lower level, which reached the requirement of "Sanitary Standard of drinking Water" (GB 5749-2006).
【作者單位】： 深圳市深水光明水務(wù)有限公司;
【分類號(hào)】：TU991.2
【正文快照】： 碧眼水庫(kù)位于深圳市光明新區(qū),始建于1958年,初期以農(nóng)業(yè)灌溉為主,隨著經(jīng)濟(jì)的發(fā)展,功能逐漸轉(zhuǎn)變?yōu)橐怨┧疄橹?目前與上游的禾槎澗、鵝頸水庫(kù)連通互相調(diào)配運(yùn)行。光明新區(qū)某水廠原水主要由鵝頸水庫(kù)流經(jīng)碧眼水庫(kù)提供,生產(chǎn)工藝為“穿孔板反應(yīng)池+斜管沉淀池+普通濾池”,設(shè)計(jì)規(guī)模為2.6

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 狄春華;施學(xué)峰;;尚湖原水pH異常原因分析及應(yīng)對(duì)[J];中國(guó)衛(wèi)生檢驗(yàn)雜志;2011年10期

2 芮e，

本文編號(hào)：1390927