本文選題：城市固體廢棄物填埋場(chǎng) + 甲烷釋放　； 參考：《西安建筑科技大學(xué)》2017年碩士論文

【摘要】：垃圾填埋場(chǎng)已成為一個(gè)重要的人為甲烷排放源,在眾多的甲烷減排措施中,土壤覆蓋仍然是一種關(guān)鍵的甲烷減排策略。為了更全面地理解填埋場(chǎng)甲烷的排放及其覆蓋層氧化效率,本研究以北京市環(huán)衛(wèi)集團(tuán)某填埋場(chǎng)為研究對(duì)象,利用靜態(tài)箱法對(duì)垃圾填埋場(chǎng)甲烷排放進(jìn)行了全面監(jiān)測(cè),基于長(zhǎng)期定點(diǎn)監(jiān)測(cè)和特殊季節(jié)強(qiáng)化監(jiān)測(cè)結(jié)果,分析了甲烷釋放通量和相關(guān)影響因子的關(guān)系,闡述了北京市環(huán)衛(wèi)集團(tuán)某填埋場(chǎng)甲烷排放的時(shí)空變化規(guī)律�；趯�(shí)驗(yàn)監(jiān)測(cè)結(jié)果和調(diào)研數(shù)據(jù),利用反演模型和CH_4/CO_2比率法評(píng)估了覆土層甲烷氧化因子值。主要結(jié)論如下:(1)通過長(zhǎng)期定點(diǎn)監(jiān)測(cè)發(fā)現(xiàn),10個(gè)監(jiān)測(cè)點(diǎn)每月CH_4釋放通量值波動(dòng)范圍較大,可達(dá)3~5個(gè)數(shù)量級(jí)。但CH_4釋放通量呈現(xiàn)明顯的季節(jié)性變化規(guī)律,表現(xiàn)為高值出現(xiàn)在冬季附近,低值出現(xiàn)在夏季附近�；谙那锛竟�(jié)的強(qiáng)化監(jiān)測(cè)數(shù)據(jù),利用IDW空間插值分析發(fā)現(xiàn),夏季,CH_4釋放通量在200~800 mg m~(-2)h~(-1)的通量值占據(jù)了監(jiān)測(cè)區(qū)域的39.62%;秋季,CH_4釋放通量在3300~14200 mg m~(-2)h~(-1)的通量值占據(jù)了監(jiān)測(cè)區(qū)域的44.32%。秋季CH_4釋放熱點(diǎn)區(qū)域位置與夏季相同,但釋放通量值較夏季有顯著增加,是夏季相似區(qū)域釋放通量值的16倍左右。(2)CH_4和CO_2釋放通量保持高度的同步性,通過相關(guān)性分析發(fā)現(xiàn),CH_4和CO_2全年釋放通量具有顯著正相關(guān)(r=0.861,P0.01)。此外,通過CH_4釋放通量與相關(guān)環(huán)境因子的分析發(fā)現(xiàn),CH_4釋放通量與大氣溫度呈極顯著負(fù)相關(guān),相關(guān)系數(shù)r=-0.897,P0.01;CH_4釋放通量與大氣壓力呈極顯著正相關(guān),相關(guān)系數(shù)r=0.775,P0.01;CH_4釋放通量與大氣相對(duì)濕度無(wú)顯著相關(guān)關(guān)系(P0.05)。(3)通過反演模型分析發(fā)現(xiàn),覆土層甲烷氧化因子呈現(xiàn)出季節(jié)變化趨勢(shì),甲烷氧化因子最高值出現(xiàn)在六月,最低值出現(xiàn)在二月,夏秋季明顯高于冬春季。甲烷氧化因子全年變化范圍為0.01~0.82,平均值為0.42,該值高于IPCC的缺省值(0.1)。(4)通過CH_4/CO_2比率法分析得到不同深度CO_2/CH_4比率值變化范圍為0.90~12.64,CH_4氧化因子值變化范圍為0.16~0.88,平均值為0.55。
[Abstract]:Landfill has become an important anthropogenic methane emission source. Soil cover is still a key methane emission reduction strategy among many methane emission reduction measures. In order to understand methane emission from landfill and its oxidation efficiency of overburden, a landfill site of Beijing Sanitation Group Group was used to monitor methane emission from landfill site by static tank method. Based on the results of long-term fixed-point monitoring and intensive monitoring in special seasons, the relationship between methane emission flux and related factors was analyzed, and the temporal and spatial variation of methane emission from a landfill site of Beijing Sanitation Group Group was described. Based on the experimental monitoring results and the investigation data, the methane oxidation factor of the overlying soil was evaluated by using the inversion model and the Ch _ s _ 4 / COS _ 2 ratio method. The main conclusions are as follows: (1) through long-term fixed point monitoring, it is found that the CH4 release volume fluctuates greatly in 10 monitoring points every month, and can reach 3 ~ 5 orders of magnitude. However, CH4 emission fluxes showed a seasonal variation, with high values near winter and low values near summer. Based on the data of intensive monitoring in summer and autumn season, using IDW spatial interpolation analysis, it was found that the flux of CH4 released in summer occupied 39.62% of the monitored area at 200 ~ 800 mg / m ~ (-1), and that the flux of Ch _ 4 in autumn occupied 44.32% of the monitored area at 3300 ~ 14200 mg / m ~ (-2) h ~ (-1). In autumn, the location of CH4 release hotspots in autumn was the same as that in summer, but the emission flux increased significantly compared with that in summer, which was about 16 times of that in similar areas in summer. The emission fluxes of CH4 and CO2 kept a high synchronicity. The results of correlation analysis showed that there was a significant positive correlation between the annual release fluxes of CHS _ 4 and COS _ 2. In addition, through the analysis of CH4 emission flux and related environmental factors, it was found that CHS _ 4 emission flux was significantly negatively correlated with atmospheric temperature, and the correlation coefficient r ~ (-0.897) P _ (0.01) Ch _ S _ 4 release flux was significantly positively correlated with atmospheric pressure. There is no significant correlation between atmospheric relative humidity and the emission flux of Ch _ 4. The inversion model analysis shows that the oxidation factor of methane in overlying soil layer shows a seasonal variation trend, and the highest value of methane oxidation factor appears in June. The lowest value appeared in February and the summer and autumn were obviously higher than in winter and spring. The annual range of CH4 oxidation factor is 0.01 / 0.82 with an average value of 0.42.This value is higher than the IPCC's default value of 0.1%.) by means of Ch _ 4 / CO _ 2 ratio analysis, it is found that the ratio of CO2 / Ch _ 4 in different depth varies from 0.90 to 12.64% Ch _ 4 oxidation factor of 0.160.88, and the average value is 0.555.The results are as follows: (1) the average value of Ch _ 2 / Ch _ 4 is 0.160.88, and the average is 0.55 by means of Ch _ 4 / CO _ 2 ratio analysis.
【學(xué)位授予單位】：西安建筑科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：X705

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李文濤;高慶先;王立;馬占云;劉俊蓉;李崇;張艷艷;;我國(guó)城市生活垃圾處理溫室氣體排放特征[J];環(huán)境科學(xué)研究;2015年07期

2 馬占云;李海玲;岳波;高慶先;董路;;生活垃圾填埋場(chǎng)覆蓋層溫室氣體CH_4和CO_2釋放規(guī)律及其相關(guān)性研究[J];環(huán)境工程技術(shù)學(xué)報(bào);2014年05期

3 CAI Bo-Feng;LIU Jian-Guo;GAO Qing-Xian;NIE Xiao-Qin;CAO Dong;LIU Lan-Cui;ZHOU Ying;ZHANG Zhan-Sheng;;Estimation of Methane Emissions from Municipal Solid Waste Landfills in China Based on Point Emission Sources[J];Advances in Climate Change Research;2014年02期

4 馮俊熙;陳多福;;垃圾填埋場(chǎng)甲烷排放監(jiān)測(cè)方法研究進(jìn)展[J];環(huán)境科學(xué)與技術(shù);2014年03期

5 陳操操;劉春蘭;李錚;王海華;張妍;王璐;;北京市生活垃圾填埋場(chǎng)產(chǎn)甲烷不確定性定量評(píng)估[J];環(huán)境科學(xué);2012年01期

6 張艷艷;景元書;高慶先;馬占云;;我國(guó)城市固體廢物處理情況及溫室氣體減排啟示[J];環(huán)境科學(xué)研究;2011年08期

7 張英民;尚曉博;李開明;張朝升;張可方;榮宏偉;;城市生活垃圾處理技術(shù)現(xiàn)狀與管理對(duì)策[J];生態(tài)環(huán)境學(xué)報(bào);2011年02期

8 岳波;林曄;王琪;黃澤春;黃啟飛;楊雪;張維;;填埋場(chǎng)覆蓋材料的甲烷氧化能力及其影響因素研究[J];環(huán)境工程技術(shù)學(xué)報(bào);2011年01期

9 岳波;林曄;黃澤春;黃啟飛;王琪;張維;劉學(xué)建;;垃圾填埋場(chǎng)的甲烷減排及覆蓋層甲烷氧化研究進(jìn)展[J];生態(tài)環(huán)境學(xué)報(bào);2010年08期

10 趙由才;趙天濤;韓丹;王莉;梅娟;;生活垃圾衛(wèi)生填埋場(chǎng)甲烷減排與控制技術(shù)研究[J];環(huán)境污染與防治;2009年12期

相關(guān)博士學(xué)位論文 前1條

1 張桂玲;中國(guó)近海部分海域溶解甲烷和氧化亞氮的生物地球化學(xué)研究[D];中國(guó)海洋大學(xué);2004年

相關(guān)碩士學(xué)位論文 前1條

1 李海玲;我國(guó)典型城市生活垃圾填埋場(chǎng)溫室氣體甲烷排放特征研究[D];蘭州大學(xué);2014年

，

本文編號(hào)：2031423