本文選題：中小城鎮(zhèn)污水處理 + 中水回用�。� 參考：《西北農(nóng)林科技大學(xué)》2015年碩士論文

【摘要】：隨著我國(guó)經(jīng)濟(jì)的飛速發(fā)展和城鎮(zhèn)化建設(shè)的加快,水資源短缺的問(wèn)題日漸嚴(yán)重,在我國(guó)很多地方水資源短缺已經(jīng)嚴(yán)重阻礙和制約著國(guó)民經(jīng)濟(jì)的持續(xù)發(fā)展。水資源的利用問(wèn)題在我國(guó)中小城鎮(zhèn)表現(xiàn)的尤為突出,這些地區(qū)的環(huán)境保護(hù)工作滯后、污染防治措施匱乏、公眾環(huán)保意識(shí)薄弱,再加上該地區(qū)中小城鎮(zhèn)污水處理技術(shù)相對(duì)落后,工藝流程設(shè)計(jì)達(dá)不到預(yù)期效果,使水環(huán)境質(zhì)量受到嚴(yán)重威脅。因此,研究和應(yīng)用污水回用技術(shù)對(duì)于我國(guó)中小城鎮(zhèn)而言,不僅有利于保障了水資源的循環(huán)有效利用,而且更有著降低工業(yè)生產(chǎn)成本,維護(hù)和促進(jìn)整個(gè)中小城鎮(zhèn)經(jīng)濟(jì)社會(huì)和持續(xù)發(fā)展的現(xiàn)實(shí)性要求。本研究針對(duì)我國(guó)中小城鎮(zhèn)污水排放量小,氮、磷含量高等特點(diǎn),結(jié)合污水處理廠傳統(tǒng)生物處理工藝運(yùn)行中存在的問(wèn)題,通過(guò)對(duì)中水回用處理工藝—水解酸化+MSBR+絮凝反應(yīng)+活性砂濾的研究分析,主要取得了以下成果:1)通過(guò)對(duì)我國(guó)中小城鎮(zhèn)污水排放特征研究和各中水回用生物處理工藝特點(diǎn)的比對(duì),以水解酸化為預(yù)處理過(guò)程,絮凝反應(yīng)和活性砂濾為深度處理方法,MSBR為處理核心的中水處理工藝,適用于中小城鎮(zhèn)中處理污水處理量小、占地面積小、脫氮除磷能力要求高的中水回用處理工藝。2)通過(guò)對(duì)秦皇島市青龍縣污水處理廠中水回用工藝分析,輔以大量的污水進(jìn)、出口監(jiān)測(cè)數(shù)據(jù),論證了以MSBR為核心的中水回用工藝,處理效果達(dá)到預(yù)期排放標(biāo)準(zhǔn),從技術(shù)要求上是可行的。并通過(guò)投資估算,經(jīng)濟(jì)、利潤(rùn)、敏感性、盈虧平衡等經(jīng)濟(jì)效益分析,結(jié)果顯示其具有很好的應(yīng)用前景。本研究為我國(guó)中小城鎮(zhèn)污水處理系統(tǒng)的規(guī)劃和設(shè)計(jì)提供可靠的技術(shù)支持,同時(shí)也為秦皇島周邊中小城鎮(zhèn)中水回用技術(shù)發(fā)展提供了很好的借鑒,對(duì)構(gòu)建全新的中水回收處理工藝,促進(jìn)中小城鎮(zhèn)自身的水資源循環(huán)利用,改善城鎮(zhèn)水資源污染狀況帶來(lái)深遠(yuǎn)的影響。
[Abstract]:With the rapid development of our economy and the acceleration of urbanization, the problem of water shortage is becoming more and more serious. In many places in our country, the shortage of water resources has seriously hindered and restricted the sustainable development of the national economy. The utilization of water resources is particularly prominent in small and medium-sized towns in China. The environmental protection work in these areas is lagging behind, the pollution prevention measures are scarce, the public awareness of environmental protection is weak, and the sewage treatment technology of the small and medium-sized towns in this area is relatively backward. The design of technological process can not achieve the expected effect, and the quality of water environment is seriously threatened. Therefore, the research and application of wastewater reuse technology for small and medium-sized towns in China is not only conducive to ensuring the effective use of water resources, but also reduces the cost of industrial production. To maintain and promote the economic and social development of the whole small and medium-sized towns and the reality of sustainable development requirements. In view of the characteristics of small sewage discharge, high nitrogen and phosphorus content in small and medium-sized towns in China, the problems existed in the operation of traditional biological treatment process of sewage treatment plant were studied in this study. Through the research and analysis of reclaimed water treatment process-hydrolytic acidification MSBR flocculation reactive sand filtration, The main achievements are as follows: (1) through the study of sewage discharge characteristics of small and medium-sized towns in China and the comparison of the characteristics of each reclaimed water reuse biological treatment process, the hydrolysis and acidification is taken as the pretreatment process. Flocculation reaction and activated sand filtration are advanced treatment methods. MSBR is the core process of reclaimed water treatment. It is suitable for small amount of sewage treatment and small area of land in small and medium-sized cities and towns. By analyzing the reclaimed water reuse process of Qinglong sewage treatment Plant in Qinhuangdao City, supplemented by a large amount of monitoring data on the import and export of sewage, the reclaimed water reuse process with MSBR as the core was demonstrated. The treatment effect reaches the expected emission standard, which is feasible from the technical requirements. Through the economic analysis of investment estimation, economy, profit, sensitivity, profit and loss balance, the results show that it has a good application prospect. This study provides reliable technical support for the planning and design of sewage treatment system in small and medium-sized towns in China, and also provides a good reference for the development of water reuse technology in the small and medium-sized towns around Qinhuangdao. Promoting the recycling of water resources in small and medium-sized towns and improving the pollution of water resources in cities and towns bring far-reaching influence.
【學(xué)位授予單位】：西北農(nóng)林科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：X703

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