本文關(guān)鍵詞：廣東某水廠水處理系統(tǒng)生產(chǎn)效能診斷研究　出處：《哈爾濱工業(yè)大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 凈水廠 生產(chǎn)廢水回用 排泥水 反沖洗廢水 效能診斷

【摘要】：水環(huán)境的不斷惡化和水資源的持續(xù)短缺是我國城市供水行業(yè)面臨的主要問題。這無疑對城市凈水廠供水水質(zhì)的提高增加了難度，部分城市由于水資源短缺甚至影響了正常的生活用水，而供水水源的污染增加了凈水廠的供水處理難度。我國城市供水行業(yè)的遠(yuǎn)期規(guī)劃應(yīng)以提高供水質(zhì)量、改善供水服務(wù)、優(yōu)化供水成本和保障供水安全為總體目標(biāo)。 因此部分水廠原有的混凝、沉淀、過濾、消毒等常規(guī)凈水處理工藝都面臨著升級改造的需要，我們需要對凈水廠水處理系統(tǒng)做出整體的生產(chǎn)效能評價，使其在水質(zhì)達(dá)標(biāo)的前提下盡量節(jié)省能耗控制生產(chǎn)運(yùn)行成本。而如何處理排泥水對于現(xiàn)代化的水廠顯得尤為重要，我國近年來一些新建的凈水廠都采用了排泥水處理系統(tǒng)，凈水廠常規(guī)水處理工藝產(chǎn)生的生產(chǎn)廢水主要包括沉淀池或澄清池的排泥水以及濾池反沖洗水，約占水廠總處理水量的4%~7%，生產(chǎn)廢水若能回用在節(jié)省水資源、降低水源污染的同時經(jīng)濟(jì)效益也會有所提高。 本課題主要研究內(nèi)容為對采用生產(chǎn)廢水回用工藝的廣東省DW水廠水處理系統(tǒng)進(jìn)行生產(chǎn)效能診斷研究，通過對DW水廠的設(shè)計資料和全年低濁度期、中濁度期和高濁度期的生產(chǎn)運(yùn)行數(shù)據(jù)研究分析后對水廠的水質(zhì)凈化常規(guī)水處理工藝和生產(chǎn)廢水回用工藝做出效能評價并根據(jù)試驗研究對各工藝單元提出相應(yīng)改進(jìn)建議以提高水處理效能，最終建立城市凈水廠水處理系統(tǒng)生產(chǎn)效能診斷模式并得出以下結(jié)論： DW水廠每日24h不同時段內(nèi)處理水量差異較為明顯，表明清水池調(diào)節(jié)能力嚴(yán)重不足，水廠的抗水量沖擊負(fù)荷能力較差，應(yīng)充分發(fā)揮清水池的水量調(diào)節(jié)能力，保證水廠運(yùn)行工況穩(wěn)定。水廠折板絮凝池和平流沉淀池運(yùn)行過程中排泥不完全無效排泥現(xiàn)象較為嚴(yán)重，V型濾池反沖洗效果不良有待改善，通過優(yōu)化絮凝池的排泥時間和沉淀池排泥機(jī)的運(yùn)行方式，排泥過程可以有效進(jìn)行的同時水資源也得到節(jié)約，與此同時通過改進(jìn)濾池反沖洗時間的分配設(shè)置，增加濾池氣沖時間，減小濾池水洗時間，不僅改善濾池的反沖洗效果，也達(dá)到了節(jié)約水資源的目的，最終在確保出廠水水質(zhì)的前提下各工藝單元的水處理效能都得以提高。 原水濁度不同時，生產(chǎn)廢水回用后的節(jié)水量有所不同，，低濁度期生產(chǎn)廢水回流量為1400m3/d~2100m3/d，回流比為1.34%~2.01%。中濁度期生產(chǎn)廢水回流量為2800m3/d~4200m3/d，回流比為2.53%~3.80%。高濁度期生產(chǎn)廢水回流量為3500m3/d~4900m3/d，回流比為3.11%~4.35%。生產(chǎn)廢水回流之后對于主體水質(zhì)凈化工藝水質(zhì)方面的影響主要表現(xiàn)為沉后水和濾后水的總固體數(shù)值相較于生產(chǎn)廢水沒有回流時而言隨著生產(chǎn)廢水回流而開始逐漸升高，濾后水的氨氮數(shù)值相較于生產(chǎn)廢水沒有回流時同樣有所提高。 DW水廠常規(guī)水處理工藝各單元通過改進(jìn)后生產(chǎn)廢水量由改進(jìn)前的149.65萬m3/a減少為改進(jìn)后的118.83萬m3/a，減少幅度達(dá)20.59%，常規(guī)工藝改進(jìn)之后節(jié)省費(fèi)用達(dá)6.762萬元/a。生產(chǎn)廢水回流之后節(jié)省費(fèi)用共計11.8589萬元/a，而其中生產(chǎn)廢水回用為水廠節(jié)省水資源費(fèi)用高達(dá)18.18萬元/a。DW水廠2013年全年運(yùn)行費(fèi)用中水資源費(fèi)用、電費(fèi)以及藥劑消耗費(fèi)用共計2663.63萬元，其中電費(fèi)占據(jù)了全年57%的費(fèi)用比例。水廠在低濁度期、中濁度期、高濁度期三種運(yùn)行工況下水資源費(fèi)用、電費(fèi)以及藥劑消耗費(fèi)用分別總計使用2396.96萬元、174.04萬元、92.63萬元。
[Abstract]:The continuous shortage of deteriorating water environment and water resources are the main problems of China's city water supply industry. This will undoubtedly increase the quality of city water supply net increased difficulty, part of the city due to the shortage of water resources and even affect the normal life of water, water and water pollution increase water treatment difficulty of waterworks. The long-term planning of our country city water supply industry should be to improve the quality of water, improve water supply services, optimize the water supply cost and ensure the safety of water supply for the overall goal.
Therefore, the original part of the water coagulation, sedimentation, filtration, disinfection and other conventional water treatment process are faced with the need to upgrade the production efficiency, we need to make the overall evaluation of the net water treatment system, the water quality standards under the premise to save energy cost. And how to control the operation for the treatment of sludge water modern water is particularly important in China in recent years, some new waterworks are used in sludge water treatment system, production wastewater purification plant to conventional water treatment process including sedimentation tank or clarifier sludge and filter backwash water, the total sewage water accounted for about 4%~7%, if can return to production wastewater to save water resources, reduce water pollution and economic benefits will be improved.
The main content of this article is to study the production efficiency of the diagnosis of wastewater reuse technology in Guangdong province DW water treatment system, through the DW plant design information and the low turbidity, the turbidity and high turbidity during production operation data of water quality of water purification and conventional water treatment process production wastewater reuse technology make effectiveness evaluation according to the test of each process unit puts forward the corresponding improvement proposals to improve the water treatment efficiency, finally establish the city waterworks water treatment system and production efficiency diagnosis mode reaches a conclusion:
DW water daily 24h in different time of water treatment are significant difference, show that the clean water tank adjustment ability of serious shortage of water, anti impact load capacity is poor, should give full play to the clear water tank water regulating capability, ensure stable running condition of water. Water flocculating sedimentation tank and operation process of mud mud is not completely ineffective the phenomenon is more serious, V type filter backwash effect side needs to be improved, operation time and through the mud sedimentation tank sludge machine optimization of flocculation tank, sludge process can be effectively carried out at the same time also to save water resources, at the same time through the improved allocation of backwash time settings, increase air filter time decreased filter washing time, not only improve the filter backwash effect, also reached the aim of saving water resource, finally in the premise to ensure the water quality of each process unit The efficiency of water treatment has been improved.
Turbidity is not at the same time, the production of wastewater reuse after using different quantity of water saving, wastewater reuse rate of 1400m3/d~2100m3/d low turbidity period production, reflux ratio of return flow rate in 1.34%~2.01%. turbidity production wastewater was 2800m3/d~4200m3/d period, the reflux ratio is 2.53%~3.80%. high turbidity production waste water flow is 3500m3/d~4900m3/d, reflux ratio for 3.11%~4.35%. wastewater for reflux the main water purification process of water quality influence mainly for numerical precipitation after total solid water and filtered water compared to the production wastewater of no return time and return with wastewater increased gradually, filtered water compared with numerical ammonia production wastewater without reflux also increased.
DW in conventional water treatment process of each unit through the improved production wastewater decreased from 1 million 496 thousand and 500 m3/a before improvement is the improved 1 million 188 thousand and 300 m3/a, reduce the rate of 20.59%, after the conventional process improvement cost savings of up to 67 thousand and 620 yuan /a. wastewater after the return of saving the total cost of 118 thousand and 589 yuan /a, and the production of wastewater reuse for the water to save water the water resource fee of up to 181 thousand and 800 yuan /a.DW water resources 2013 annual operating costs and electricity costs, pharmaceutical consumption totaled 26 million 636 thousand and 300 yuan, of which electricity accounted for 57% of the annual cost ratio. In low turbidity water, turbidity, high turbidity period in three kinds of operating conditions of water resources and electricity costs, pharmaceutical consumption total use respectively 23 million 969 thousand and 600 yuan, 1 million 740 thousand and 400 yuan, 926 thousand and 300 yuan.

【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU991.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 鄒敏;;中國城市供水行業(yè)市場化改革:進(jìn)展、問題與對策[J];經(jīng)營管理者;2012年06期

2 劉海龍;王東升;王敏;湯鴻霄;;強(qiáng)化混凝對水力條件的要求[J];中國給水排水;2006年05期

3 徐勇鵬;何利;崔福義;王志軍;;回用凈水廠生產(chǎn)廢水強(qiáng)化低溫低濁水的混凝效能[J];中國給水排水;2011年07期

4 崔玉川,傅濤;我國城市給水發(fā)展現(xiàn)狀與特點[J];中國給水排水;1999年02期

5 韓宏大,何文杰;濾池反沖洗水回用試驗研究[J];工業(yè)水處理;2001年12期

6 趙洪武;;淺析我國水資源現(xiàn)狀與問題[J];才智;2012年16期

7 左玉平;;凈水廠生產(chǎn)廢水回用強(qiáng)化混凝工藝水質(zhì)安全性研究[J];甘肅科技;2013年04期

8 石穎,陳忠林,李圭白;高錳酸鉀復(fù)合藥劑(PPC)強(qiáng)化混凝除藻室內(nèi)試驗研究[J];哈爾濱建筑大學(xué)學(xué)報;2000年04期

9 黃廷林;強(qiáng)化絮凝法去除水中DBP先質(zhì)研究[J];環(huán)境科學(xué)學(xué)報;1999年04期

10 王東升;劉海龍;晏明全;余劍鋒;湯鴻霄;;強(qiáng)化混凝與優(yōu)化混凝:必要性、研究進(jìn)展和發(fā)展方向[J];環(huán)境科學(xué)學(xué)報;2006年04期

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