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城市生活固体废弃物已成为重要环境污染问题之一,地质环境工作应为废弃物的填埋选址,防治污染提供服务。北京地质环境部门受北京市主管部门委托开展了全市生活固体废弃物填埋场地适宜性区划,卫生填埋场地环境地质影响评价,其成果已为市规划、环境行政部门所利用。 相似文献
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人与环境的和谐共处是当今社会可持续发展的重要内容,面对城市固体废弃物激增所带来的人与环境之间的各种问题,卫生填埋法作为最广泛也是最彻底的固体废弃物处理方法得到了越来越多的关注和研究。卫生填埋场的建设与环境岩土工程领域内的诸多方面密切相关,针对卫生填埋场的建设中涉及到的环境岩土工程问题,在依据已有资料概括介绍国内外相关发展现状的同时,结合西安地区的特点,在填埋场场址和类型选择、废弃物工程性质指标、填埋场防渗处理、填埋场沉降计算和边坡稳定这5个方面对西安地区城市固体废弃物卫生填埋场建设中的环境岩土工程问题进行了论述,提出了相应建议,展望了研究方向。 相似文献
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区域水资源与社会经济协调程度评价研究 总被引:8,自引:1,他引:8
基于陈守煜多级多目标模糊模式识别模型,提出了区域水资源与社会经济协调程度评价模型。该模型利用级别特征值解决了多层多级多目标系统区域水资源与社会经济协调程度的评价,给出了多个目标隶属函数的计算公式。经分析比较,方法可行,结果合理。 相似文献
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地下水质量的优劣是影响水资源可利用性的一个重要方面,因此对地下水水质进行合理评价是水资源开发利用、保护的依据。本文根据水质评价的特殊性,就模糊模式识别模型进行了改进,将改进的模糊模式识别模型应用于江阴市地下水水质综合评价,将评价结果与基于熵权法赋权的模糊综合评价及传统模糊综合评价结果进行了对比分析。研究表明:模糊模式识别方法对地下水水质评价问题具有较高的数值稳定性和适用性,模糊模式识别法评价的水质级别趋于平均化、中间化,本文提出的模糊模式识别理论模型应用于典型案例地区地下水水质评价是有效可行的。 相似文献
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During the last decades, growth of urbanization and industrialization led to an increase in solid waste generation. Landfilling is the most prevalent ultimate disposal method for the municipal solid wastes in developing countries. The rapid municipal solid waste generation in Markazi province (central part of Iran) causes the need for precision in finding a suitable landfill site selection. In the present study, 12 factors (environmental and socioeconomic factors) have been applied to select the landfill site in Markazi province, Iran. The different methods including the analytic network process (ANP) combined with fuzzy linguistic quantifier, ordered weighted average (OWA), and weighted linear combination (WLC) approach in geographic information system was applied to find an appropriate landfill site. The OWA operator function permits the evaluation of the wide spectrum of consequences (with different scenario) obtained from different management strategies. Results revealed that integration of fuzzy logic, ANP, and OWA provides flexible and better ideas compared to the Boolean logic and WLC to select a suitable landfill site. 相似文献
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Landfill site selection using integrated fuzzy logic and analytic network process (F-ANP) 总被引:2,自引:2,他引:0
Locating a suitable place to dispose the municipal solid wastes hygienically (sanitary landfill) is one of the fundamental subjects relating the environmental stability of cities and, in general, the human settlements. This final stage of solid waste management requires observance of a series of principles and criteria mainly including environmental, social, economical, and general acceptance criteria. The set of these criteria along with their sub-criteria causes some complexities in decision making for landfill site selection. Considering effective parameters and criteria, we developed an integrated fuzzy logic and analytic network process (i.e. F-ANP) to locate a suitable location for landfilling municipal solid wastes generated in Kahak Town, Qom, Iran. Our findings revealed that integration of fuzzy logic and ANP can give better idea compared with other models like AHP, fuzzy logic, and ANP (individually). Therefore, this model can be applied in site selection for landfill of other similar places. 相似文献
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城市生活垃圾填埋场沉降监测与分析 总被引:3,自引:0,他引:3
2006年9月起于上海老港填埋场开展了示范工程沉降监测项目。该生活垃圾填埋场占地面积约为200 m×125 m,共填埋了约15×104 t来自上海城区的生活垃圾,最大填埋厚度约为9 m。通过填埋期间埋设的水平沉降管,监测到该填埋场不同埋深处的沉降值。介绍了沉降监测系统的工作原理,分析了2006年底至2008年底为期两年的沉降数据。填埋场底部沉降管监测数据表明,场底地基沉降较小,两年的平均沉降为 ~ cm;中部沉降管监测数据表明,该沉降管下方生活垃圾在上方垃圾填埋后产生了较大的压缩,从上方垃圾开始填埋至填埋完毕3个月内的压缩应变约为0.197~0.242;顶部沉降管和中部沉降管监测数据表明,该填埋场垃圾主压缩完成时间约为3个月;由于填埋垃圾有机物含量较高,其修正次压缩指数较大,约为0.066~0.070。 相似文献
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A good prediction of solid waste landfill settlement is important for landfill design and rehabilitation. A one-dimensional model which accounts for mechanical settlement and biodegradation processes is developed to simulate the settlement behavior of municipal solid waste landfill. The derivation of analytical solutions for specific conditions is introduced. The numerical approach, capable of coping with more general conditions, is also presented to estimate the spatial and temporal distribution of landfill settlement. The proposed model can simulate typical features of short- and long-term landfill settlement behaviors. With proper selection of parameter values, field measurements are well simulated by this model. The effects of some design parameters on the settlement behavior of municipal solid waste landfills are also examined with the help of this model. 相似文献
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This paper presents a GIS-based multi-criteria site selection for municipal solid waste landfilling in Ariana Region, Tunisia. Based on the regional characteristics, literature related to disposal sites and waste management, local expert, data availability and assessments via questionnaires, 15 constraints, and 5 factors were built in the hierarchical structure for landfill suitability by multi-criteria evaluation. The factors are divided into environmental and socio-economic groups. The methodology is used for preliminary assessment of the 20-year most useful lifetime suitable landfilling sites by combining fuzzy set theory, weighted linear combination (WLC) and analytic hierarchy process (AHP) in a GIS environment. The criteria standardization is undertaken by application of different fuzzy membership functions. The fuzzy membership functions shape and their control points are chosen through assessment of expert opinion. The weightings of each selection criterion are assigned depending on the relative importance using the AHP methodology. The WLC approach is applied for alternative landfill sites prioritization. The results of this study showed five potential candidate sites, which are generated when the environmental factors are valued higher than socio-economic factors. These sites are ranked in descending order using the ELECTRE III method. However, the final decision will require further detailed geotechnical and hydrogeological analyses toward the protection of groundwater as well as surface water. 相似文献
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Engineering geological aspects of replacing a solid waste disposal site with a sanitary landfill 总被引:1,自引:0,他引:1
Kamil Kayabali 《Engineering Geology》1996,44(1-4):203-212
The current solid waste disposal site in the Mamak district of Ankara is being engulfed by the growing city. All varieties of solid wastes, including medical wastes, are stored at the present site in an irregular manner. Topographical and geological conditions at Mamak waste site are favorable for constructing a sanitary landfill. Located at the edge of a topographical depression, the site is underlain by the natural hydraulic barriers such as clay and metagreywacke. The terrestrial clay has a permeability of 10−7 to 10−8 cm/s and low to moderate values of CEC. The proposed sanitary landfill to replace the present solid waste site has a capacity of storing solid waste over 50 years. The details of base liner, final cover, toe embankment, and drainage of leachate and gas are presented in the paper. 相似文献
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Site selection in municipal solid waste management with extended VIKOR method under fuzzy environment 总被引:2,自引:2,他引:0
Hu-Chen Liu Jian-Xin You Yi-Zeng Chen Xiao-Jun Fan 《Environmental Earth Sciences》2014,72(10):4179-4189
Nowadays, selection of the suitable disposal site in municipal solid waste (MSW) management has become a challenge task for the municipal authorities, especially in fast-growing areas. Site selection can be viewed as a complicated multi-criteria decision-making (MCDM) problem requiring consideration of multiple alternative solutions and conflicting quantitative and qualitative criteria. In this paper, linguistic variables, which can be expressed as trapezoidal fuzzy numbers, are used to assess the ratings and weights for the selection criteria. The ordered weighted averaging operator is utilized to transform the fuzzy decision matrix into crisp values considering the decision maker’s attitudinal character. For selecting the best site, the extended VIsekriterijumska optimizacija i KOmpromisno Resenje (VIKOR) method is applied to determine the priority ranking of alternatives. As a result, a hierarchy MCDM model based on fuzzy set theory and VIKOR method is proposed to deal with the site selection problems in the MSW management system. An empirical study in Shanghai, China, is provided and comparison with the existing approach is conducted to illustrate the applicability and benefits of the proposed method. 相似文献