本文選題：生活垃圾填埋場 + 填埋氣　； 參考：《清華大學》2015年碩士論文

【摘要】：生活垃圾填埋氣是重要的溫室氣體,也是清潔的可再生能源,對填埋氣的控制和利用研究已成為垃圾填埋處置技術的重要組成部分。無論后端對垃圾填埋氣進行何種處理,前端快速高效的收集是項目實施的關鍵,而收集方式必須適應我國生活垃圾填埋氣產(chǎn)氣速率較快,迅速到達產(chǎn)氣高峰,然后快速下降的特點。上海老港生活垃圾填埋場是典型的“灘涂型”衛(wèi)生填埋場,地勢低洼,填埋深度較淺,產(chǎn)氣及收集條件不佳。針對老港綜合填埋場,通過優(yōu)化填埋作業(yè)分區(qū)和填埋氣收集方式,設計符合實際情況的收集系統(tǒng)方案,提高填埋氣的產(chǎn)生及收集效率,具備較強的現(xiàn)實意義。本文對上海老港生活垃圾填埋場填埋氣快速收集系統(tǒng)應用的研究主要分為四個部分:一是對IPCC推薦產(chǎn)氣模型及Marticorena動力學模型進行比較,確定采用Marticorena動力學模型進行產(chǎn)氣量預測,并合理確定計算參數(shù);二是對綜合填埋場原有不合理填埋分區(qū)作業(yè)方式進行優(yōu)化,形成一個多分區(qū)的填埋和填埋氣收集的方案,大大降低氣體損失率;三是通過對比,采用橫向水平抽氣方式,并進行整個填埋庫區(qū)橫向水平抽氣系統(tǒng)詳細方案設計,為同類型的垃圾填埋氣收集項目提供設計示范;四是設計現(xiàn)場抽氣實驗詳細方案,并進行現(xiàn)場抽氣實驗,根據(jù)實驗數(shù)據(jù),進行收集率評估。根據(jù)研究,得到主要結論如下:(1)老港綜合填埋場一期工程2012年起始填埋氣體產(chǎn)量為2860.28萬m~3/a,2027年最高峰填埋氣體產(chǎn)量為15135.99萬m~3/a,2039年填埋氣體產(chǎn)量為1373.11萬m~3/a,26年總產(chǎn)氣量為246265.07萬m~3;(2)將填埋庫區(qū)劃分為18個獨立單元,各單元填埋作業(yè)完成后即刻進行整體封場并抽氣,計算優(yōu)化后的填埋分區(qū)方案作業(yè)期間的填埋氣損失率僅為24.6%;(3)多分區(qū)短填埋作業(yè)方式,配合橫向水平抽氣方式,填埋氣收集率可高于60%;(4)確定同等抽氣條件下,橫向抽氣系統(tǒng)收集率更高,填埋氣品質更優(yōu)。
[Abstract]:Landfill gas is not only an important greenhouse gas, but also a clean renewable energy. The control and utilization of landfill gas has become an important part of landfill disposal technology. No matter what kind of landfill gas is disposed at the back end, the key to the project implementation is to collect the landfill gas quickly and efficiently at the front end. However, the collection method must be adapted to the rapid gas production rate of domestic solid waste landfill gas in our country and reach the gas production peak rapidly. Then the feature of rapid decline. Shanghai Laogang Municipal solid waste Landfill is a typical "beach type" sanitary landfill with low topography, shallow landfill depth, poor gas production and collection conditions. In view of Laogang Comprehensive Landfill site, it is of great practical significance to design a collection system scheme in accordance with the actual situation by optimizing the landfill operation partition and landfill gas collection mode, and to improve the generation and collection efficiency of landfill gas. In this paper, the application of the landfill gas rapid collection system in Shanghai Laogang Municipal solid waste Landfill is mainly divided into four parts: first, the IPCC recommended gas production model and the Marticorena kinetic model are compared, and the Marticorena kinetic model is used to predict the gas production. And reasonably determine the calculation parameters; second, optimize the operation mode of the original unreasonable landfill zoning of the comprehensive landfill site, form a multi-partition landfill and landfill gas collection scheme, greatly reduce the gas loss rate; third, through comparison, Adopting horizontal air extraction mode and carrying out the detailed scheme design of horizontal pumping system in the whole landfill reservoir area to provide a design demonstration for the same type of landfill gas collection project; fourth, to design the detailed scheme of field pumping experiment, The collection rate was evaluated according to the experimental data. According to the study, The main conclusions are as follows: (1) the first phase of the Laogang Comprehensive Landfill Project started at 28.6028 million mm3 / a in 2012, the highest landfill gas output in 2027 was 151.3599 million mm2 / 3 / a, the landfill gas output in 2039 was 13.7311 million mm2 / 3 / a, and the total gas output in 26 years was 2.4626507 billion mm2 / 32respectively. The buried reservoir area is divided into 18 separate units. After the completion of each unit landfill operation, the whole field is sealed and the air is pumped. The landfill gas loss rate during the operation of the optimized landfill zoning plan is only 24.6x3) and the multi-partition short landfill operation mode is combined with the horizontal air pumping mode. The collection rate of landfill gas can be higher than that of 60%.) under the same extraction condition, the collection rate of the horizontal pumping system is higher and the quality of the landfill gas is better.
【學位授予單位】：清華大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：X799.3

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本文編號：1963372