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1.
我国城市垃圾填埋场降解速率的分析   总被引:15,自引:1,他引:15  
对北京海淀区若干典型填埋场中城市垃圾的降解速率进行了实测〔1〕,指出当前垃圾堆放场的稳定周期在 1 0年左右。通过模拟实验以及理论分析 ,指出促进降解的原因在于垃圾自身组分和若干填埋条件的差异。文章并对我国未来填埋场中垃圾的降解速率提出了预测见解。  相似文献   

2.
深圳下坪填埋场渗滤液产生量预测研究   总被引:7,自引:1,他引:7  
对垃圾填埋渗滤液产生量预测模型进行了比较,选择经验-合理式模型作为填埋场渗滤液产生量的预测模型。综合下坪垃圾填埋场不同汇水面积、降雨量和渗滤液量的现场实测数据,采用线性回归确定了模型参数,通过模型预测渗滤液产生量与现场实测渗滤液产生量的对比分析了本模型的精度和可靠性,从而为填埋场渗滤液产生量的预测及收集处理系统的设计、管理提供科学依据。  相似文献   

3.
处理城市垃圾填埋场渗滤液的新工艺   总被引:3,自引:0,他引:3  
本文针对城市生活垃圾渗滤液的特点,提出了混凝-SBR法处理工艺。试验结果表明,经该工艺处理的垃圾渗滤液各项指标可达国家规定的排放标准。  相似文献   

4.
以某危险废物填埋处置项目为研究对象,在进行场地水文地质勘察的基础上,建立评价区水文地质概念模型,利用Visual MODFLOW软件模拟污染物在地下水环境中的运移规律和浓度变化,分析污染物在地下水中的迁移特征,评价其对地下水环境及敏感目标的影响程度,为项目地下水环境影响评价预测和相应污染防治措施提供技术支持。  相似文献   

5.
环境影响评价作为协调经济发展与环境保护关系的重要手段,将在西部大开发中发挥重要作用。本文从可持续发展的高度,提出进一步完善环境影响评价的具体对策,以确保实现西部大开发的可持续发展。  相似文献   

6.
分析了我国旅游开发现状及存在的环境问题,指出战略环境影响评价是有效防止旅游资源开发不当所带来生态的破坏的重要手段,进而对旅游资源开发中的战略环境影响评价进行了探讨,对评价内容、评价重点、评价指标确定及评价结论贯彻执行等方面提出了相应的建议。  相似文献   

7.
矿山开发建设项目环境影响评价的特点与方法探讨   总被引:13,自引:0,他引:13  
本文通过对矿山开发建设项目的环境问题进行分析,结合《环境影响评价技术导则》,提出该类型项目环境影响评价的方法,对矿山开发建设项目环境影响评价工作具有参考价值。  相似文献   

8.
房地产开发建设项目环境影响评价的特点与方法探讨   总被引:4,自引:0,他引:4  
刘永祺  赵雁冰 《四川环境》2002,21(4):41-42,47
本文通过对房地产开发建设项目存在的环境问题分析,结合《环境影响评价导则》,提出该类型环境评价的方法,对房地产开发建设项目环境影响评价工作具有参考价值。  相似文献   

9.
塔里木沙漠油田开发工程的环境影响评价   总被引:1,自引:0,他引:1  
塔里木是一个内陆封闭盆地,是世界第二大流动沙漠,它具有丰富的油气资源,目前正在积极开发中。在油气田开发过程中必须做环境影响评价,文中介绍了沙漠环境及生态状况,在沙漠区域必须以水域和生态环境影响评价为重点,评价结果应提出固沙、防沙和保护自然生态等一系列防治措施和对策。  相似文献   

10.
马利海  李军 《四川环境》2018,(1):138-144
伴随垃圾填埋量逐年增加,环境污染问题愈发严重,垃圾填埋场地的适宜性评价也变的更加重要。采用层次分析法,综合考虑了工程建设、运行管理、生态建设3大因素,构建了一套填埋场适宜性评价指标体系,并应用于吴忠市垃圾填埋场。实例应用表明,该方法选取的评价因素较全面,客观反映了吴忠市垃圾填埋场的实际情况,具有借鉴意义。  相似文献   

11.
环境影响评价是环境管理的重要组成部分,为我国的环境管理决策提供重要依据。但在实际工作中,我国的环境管理工作仍然存在一定的问题。本文结合采掘行业的特点,分别从法律层面、设计层面和环境影响评价层面等三个方向进行分析,结合发现的问题提出建议,力求从不同的角度完善相关制度和技术要求。从而使采掘行业的环境管理能全面涵盖采掘行业开发过程,最大程度地减少采掘行业开发过程中的环境影响,完善采掘行业环境影响评价制度,对我国采掘行业生态环境的改善及环境影响评价法制建设起到一定的借鉴意义。  相似文献   

12.
关于环境影响评价报告书编制版本的思考   总被引:1,自引:0,他引:1  
为充分发挥环境影响评价报告书的作用,提出应在环境影响报告书技术版的基础上编制一个面向领导决策者和公众的参考版。并就参考版的主要内容及编制应注意的问题进行了概述。  相似文献   

13.
本文对如何提高环境评价质量提出了一些看法。作者指出,应使环境评价工作具有针对性、实用性和科学性,并强调做好工程分析和事故评价的重要意义。  相似文献   

14.
This article critically reviews environmental assessment (EA) practices in Sri Lanka, with a particular focus on ecology. An overview is provided of the domestic and international influences which have shaped the administrative process which is currently a two-tiered scheme. An Initial Environmental Examination (IEE) provides a preliminary screening tool, prior to the requirement for a full Environmental Impact Assessment (EIA). A comprehensive survey of Sri Lankan national archives showed that 463 EAs were completed in the period 1981–2005, with the bulk of these in the more populated Western and North Western Provinces. Two-thirds were IEE surveys, while the remaining third advanced to full EIA. A representative sample of 130 EAs (both IEEs and full EIAs) spanning a broad range of project types, scales, and environmental settings was selected to evaluate the quality of the ecological investigations within the published environmental impact statements (EISs). These were assigned into five classes of “explanatory power”, on the basis of their scientific content in relation to survey, analysis, and reporting of ecological interests. Within most EISs, the ecological impact assessment (EcIA) was restricted to the lowest two categories of ecological assessment, i.e., tokenistic presentation of reconnaissance-level species lists without further analysis of the development implications for individual organisms or communities. None of the assessments reviewed provided statistically rigorous analysis, which would be required if ecological impact studies are to include quantitative and testable predictions of impact, which could then be followed up by appropriate post-impact monitoring programs. Attention to key local issues such as biodiversity or ecosystem services, which also have strong social dimensions in the developing world, was also notably underrepresented. It was thus concluded that despite the existence of a sound legislative framework in Sri Lanka, the analysis contained within EISs generally fails to convey meaningful information to the relevant stakeholders and decision makers involved in protecting ecological interests and promoting sustainable development. The introduction of strategic environmental assessment (SEA) is considered an important tool to strengthen the institutional capacity of Sri Lankan government to implement current regulations and, in particular, to combat the cumulative effects of incremental development.  相似文献   

15.
Stakeholder engagement (SE), particularly with representatives of locally affected communities, is integral to Environmental Impact Assessment (EIA) processes, so critical evaluation of SE is necessary across a range of different socio-political contexts. EIA SE practice in the Sultanate of Oman is examined using Q-Methodology, a qualitative-quantitative discourse analysis technique, in order to evaluate key-actor perspectives and policy directions. Four discourses emerge, pertaining to (1) the institutionalisation of SE; (2) business as usual; (3) rights-centred engagement; and (4) decentralisation of EIA institutions. Consensus emerges that shows support for transparency and formalisation of SE; greater citizen-centred decision-making power; transparency in government guidelines; and the elimination of developer-led consultation processes. Policy options for reforming EIA policy are discussed, including a code of participation practice and a toolkit of suitable engagement methods.  相似文献   

16.
秦艳  施介宽 《四川环境》2005,24(2):54-56,110
对某地区多年气象资料进行统计和分析,给出大气环境影响评价中典型气象日的确定方法。结合高架点源影响浓度的实例计算,可以方便地得到典型气象日条件下大气污染物的日平均浓度分布情况,能够更为真实地反映该地区的实际气象条件对大气污染物分布浓度的影响情况。  相似文献   

17.
决策支持系统应用于城市环境管理   总被引:1,自引:0,他引:1  
吴小寅  余戈  陈莉  黄梅 《四川环境》2004,23(5):104-106
南宁市环境决策支持系统集环境管理办公自动化、环境管理系统(MIS)、环境地理信息系统(GIS)、多媒体环境管理信息应用和环境管理信息辅助决策等多功能一体集成的综合性环境信息系统,为南宁市环境管理、经济发展决策提供环境信息支撑与服务。  相似文献   

18.
Environmental assessment of alternative development plans, programs, and policies may bring conflict among decision-makers, particularly when some quantitative measures for decision-making are needed and where cumulative impacts are neglected. Environmental impact assessment (EIA) and environmental economics theories, despite their usefulness, are not capable of addressing those issues and problems alone. In recent years, the decision support system (DSS) has provided some solutions, but mathematical analysis of the system to show the internal structure of the problem is not always possible. To addres the above shortcomings and ongoing problems of decision-making in Iran, a degradation model (DM) was introduced as an instrument of EIA, to act as a DSS for managers. The model is a compromise between knowledge-based decision support systems, detailed models, digested information models, and the basic theorem of environmental economics. In the present study (1996–2000), the model was applied in three provinces of Iran, representing three of four biogeographical regions of Iran. The study area was divided into a set of grids (100 km2). The degradation coefficient (H) was computed for all grids (1333), representing the degree of degradation in the grid. It is obvious that the higher the coefficient the more area is degraded and less prone to further development, and vice versa. In order to provide decision-makers with a set of quantitative measures to observe impacted areas (critical and noncritical) for resource allocation and further development, the degradation coefficients of all grids were classified into categories and criteria, using a fuzzy set theoretic approach. Accordingly, only 24% of study areas are prone to further development. The degradation model as a knowledge-based decision support system has its strengths and weaknesses, but it has solved managers' ongoing problems in Iran and it could be used elsewhere.  相似文献   

19.
生态市建设是一项系统工程,是实现可持续发展的必然途径。通过对战略环境影响评价理论、方法的探讨,开发出了针对生态市建设的战略环境影响评价技术框架,并以淮南市为例,构建了一套完整的战略环境影响评价指标体系。最后分析了淮南生态市建设SEIA的主要内容:土地利用规划、产业政策结构调整以及各项战略的环境影响评价,为生态市建设SEIA提供方法和技术支持。  相似文献   

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