本文選題：再生水　切入點(diǎn)：項(xiàng)目后評(píng)估　出處：《浙江工業(yè)大學(xué)》2015年碩士論文

【摘要】：再生水是將城市污水處理廠的處理出水再經(jīng)過(guò)深度處理后,得到的可重復(fù)利用的水資源,可以滿足農(nóng)業(yè)灌溉、工業(yè)生產(chǎn)、市政雜用等不同用途。在目前我國(guó)水資源短缺的狀況下,開(kāi)發(fā)和利用再生水資源是對(duì)城市水資源的重要補(bǔ)充,是提高水資源利用率的重要途徑。隨著我國(guó)社會(huì)、經(jīng)濟(jì)的快速發(fā)展,再生水資源的開(kāi)發(fā)與利用在構(gòu)建資源節(jié)約型社會(huì)、保護(hù)水資源和實(shí)現(xiàn)社會(huì)經(jīng)濟(jì)的可持續(xù)發(fā)展上具有日益突出的地位和作用。本文在研究了國(guó)內(nèi)外有關(guān)項(xiàng)目后評(píng)估內(nèi)容和指標(biāo)的基礎(chǔ)上,通過(guò)對(duì)YD再生水廠一期工程項(xiàng)目實(shí)例分析,應(yīng)用全過(guò)程分析法,得出以下后評(píng)估結(jié)論：(1)巖東再生水廠一期工程符合國(guó)家政策和地方需求,決策科學(xué)合理,建設(shè)費(fèi)用得到有效控制,由于建設(shè)過(guò)程中天氣因素影響,工期略有延誤,但經(jīng)合理補(bǔ)救,項(xiàng)目建設(shè)質(zhì)量?jī)?yōu)秀,三個(gè)施工標(biāo)段均一次性通過(guò)竣工驗(yàn)收；(2)項(xiàng)目采用的處理工藝運(yùn)行穩(wěn)定,主要的污染物：化學(xué)需氧量、生化需氧量、氨氮、總磷、濁度等指標(biāo)的達(dá)標(biāo)率均99%以上；(3)再生水銷售水量達(dá)到6萬(wàn)噸/日以上,主要用于工業(yè)循環(huán)冷卻水,緩解了區(qū)域水資源緊缺的現(xiàn)狀；項(xiàng)目所得稅后內(nèi)部收益率達(dá)到6.21%,所得稅后投資回收期為16.95年,超過(guò)行業(yè)基準(zhǔn)收益率5%要求；(4)項(xiàng)目產(chǎn)生顯著的環(huán)境效益,減少了排入水體的污水量及污染物,使補(bǔ)水的河流水質(zhì)由劣Ⅴ類提升到Ⅳ類水質(zhì)；項(xiàng)目符合國(guó)家政策方向,可持續(xù)性較好。(5)通過(guò)成功度的綜合評(píng)估,項(xiàng)目后評(píng)估結(jié)果判定為基本成功；再生水項(xiàng)目作為污染減排和資源循環(huán)利用項(xiàng)目,通過(guò)后評(píng)估,揭示了項(xiàng)目建設(shè)過(guò)程中可能出現(xiàn)的問(wèn)題,問(wèn)題的解決,經(jīng)驗(yàn)的總結(jié),提高未來(lái)項(xiàng)目的決策水平、設(shè)計(jì)水平、管理水平和投資效率,為今后類似項(xiàng)目的建設(shè)提供可靠依據(jù)。
[Abstract]:Reclaimed water is a reusable water resource obtained after advanced treatment of the treated effluent from a municipal wastewater treatment plant, which can satisfy agricultural irrigation and industrial production. The development and utilization of renewable water resources is an important supplement to urban water resources and an important way to improve the utilization rate of water resources. With the rapid development of economy and the development and utilization of renewable water resources, it is necessary to construct a resource-saving society. The protection of water resources and the realization of sustainable development of social economy play an increasingly prominent role. Based on the study of the contents and indicators of post-project evaluation at home and abroad, this paper analyzes the case study of the first phase project of YD Recycling Water Plant. By using the whole process analysis method, the following post-evaluation conclusions are drawn: 1) the first stage project of Yandong Recycling Water Plant conforms to the national policies and local needs, the decision-making is scientific and reasonable, and the construction costs are effectively controlled, due to the influence of weather factors during the construction process. The construction period was slightly delayed, but after reasonable remediation, the construction quality of the project was excellent, and the three construction stages were all completed and accepted at one time. The treatment process adopted in the project was stable. The main pollutants were: chemical oxygen demand, biochemical oxygen demand, ammonia nitrogen, chemical oxygen demand, chemical oxygen demand, ammonia nitrogen, chemical oxygen demand, chemical oxygen demand and ammonia nitrogen. The total phosphorus, turbidity and other indexes have reached the standard rate of 99% or more) the reclaimed water has been sold more than 60 thousand tons per day, which is mainly used for industrial circulating cooling water, which alleviates the current situation of regional water resources shortage. The internal rate of return of the project income tax reaches 6.21, and the payback period of the investment after income tax is 16.95 years, which exceeds the industry benchmark return rate of 5%. The project produces significant environmental benefits and reduces the amount of sewage and pollutants discharged into the water body. The water quality of the reclaimed river was improved from inferior class V to class 鈪，

本文編號(hào)：1687447