山西省垃圾卫生填埋场运营管理研究

对山西省垃圾处理厂的建设情况进行了全面分析,对山西省垃圾卫生填埋场的建设现状、运行现状进行了深入研究,并提出了解决对策,为同类型垃圾填埋场的建设与运营管理提供参考。     

小型垃圾填埋场建设运营问题分析

近年来,我国县级城市小型生活垃圾无害化处理项目建设步伐加快,由此带来的运营监管问题应引起足够的重视.     

中山市：创新市场化模式 推进城市公用事业市场化进程

从中山市人民政府办公室获悉．中山市积极创新城市公用事业市场化模式，着力提升城市公用事业服务质量和管理水平．不断提升生活和投资环境，加快构建既适宜居住又适宜创业的和谐中山。     

深圳市龙岗区政府监管市场化运营污水处理厂的措施

“十一五”期间我国污水处理厂市场化建设项目将急剧增加，对建成设施运营环节的监管已成为各级政府的重要行业管理工作之一。深圳市龙岗区作为国内污水处理厂市场化运营的先行者之一，在项目模式和监管方面都积累了一些经验。全面系统地分析了深圳市龙岗区对污水处理厂运营的监管目的、监管体系和监管措施，旨在为全国污水处理厂的运营监管提供参考。     

生活垃圾卫生填埋场运营项目智能化管理平台的研究

渗滤液处理是垃圾场能否达标运营的关键难点,由此也使可靠性高、实时性强、成本低廉的远程监控系统得到了发展。"生活垃圾卫生填埋场运营项目智能化管理平台"是一种基于互联网移动平台(预留4G移动平台接口)的主动式技术管理模式。根据渗滤液处理工艺的不同,针对渗滤液处理工艺关键控制指标进行集成,实现渗滤液处理系统运行状态的实时调整和动态预警控制,变主观经验管理为客观量化管理,变被动应急管理为全过程主动管理,保证了渗滤液处理系统的持续稳定运行。     

垃圾填埋场喷塑覆盖技术

1 国内外概况 随着经济的发展,城市人口的增加,生活垃圾的数量不断增多。上海市每年就有300多万t垃圾需要处置。当前世界各国都面临着“垃圾包围城市”的严峻局面。 处理城市垃圾的主要方法有卫生填埋、焚烧和堆肥3种,各国的国情不同,上述处理方法所占的比重也不同,但总的来说,发达国家采用卫生填埋占60％～70％、焚烧占25％～30％、堆肥占5％～10％,发展中国家采用     

城市垃圾填埋场渗滤液处理工艺

城市垃圾填埋场渗滤液是在垃圾填埋过程中产生的一种危害较大的高浓度有机废水,对周边环境造成严重污染,且具有负荷高、成分复杂,水质水量变化大等特点,对处理工艺有较高的要求.介绍了几种常见的渗滤液处理工艺,包括厌氧生化工艺、好氧生化工艺、膜生化反应器及物化处理工艺等,并在此基础上组合出目前较为普遍接受的工艺技术路线及其特点,...     

垃圾填埋场的稳定化研究初探

上海市现每天产生生活垃圾近万吨,其数量之多、收运处理和管理难度之大众所周知。过去,由于垃圾中可燃成份少(热值不高),所以没有采用焚烧处理技术,经多年来对生活垃圾处理技术进行研究和探索认为,上海市生活垃圾处理近期应以填埋为主、焚烧为辅,还可应用堆肥技术。 上海主要依靠填埋处理垃圾,而填埋场的选址和扩大,具     

松原生活垃圾卫生填埋场工程设计

松原生活垃圾卫生填埋场工程填埋区水平防渗层和垂直防渗层采用HDPE防渗膜与天然粘土紧密相贴的复合衬层,工程投资小,防渗效果好.垃圾渗滤液采用MBR工艺/超滤/纳滤组合技术进行处理,出水水质可达到<生活垃圾填埋污染控制标准>(GB 16889-1997)中的二级排放标准.     

城市垃圾填埋场渗滤液处理工艺

城市垃圾处理极为重要,原因是生活污水、厨余垃圾、建筑垃圾、工厂废水等垃圾处理可减少生态污染对城市生态空间的不利影响.其中,自然降水、地下水以及垃圾分解的废水是渗滤液的主要组成部分,故需要重视城市垃圾填埋场渗滤液的处理技术,进而实践可持续发展的理念.基于此,文章就城市垃圾填埋场渗滤液处理工艺要点及措施进行了探讨.     

市场经济条件下工程造价改革的探讨

阐述了市场经济条件下工程造价改革的必要性,分析了目前我国投标工作与工程造价管理存在的问题,介绍了工程造价改革的具体措施,从而提高企业的造价管理水平,实现企业的效益增长。     

填埋方式对污泥填埋稳定性的影响

参考垃圾填埋场经验,采用模拟填埋场,对污泥分别进行准好氧填埋和厌氧填埋,并定期监测渗滤液水质,利用指数法对两种填埋场的稳定化进行评价.结果表明,与厌氧填埋相比,准好氧填埋方式下污泥容重、密度和孔隙度的增长速度更快;并且准好氧填埋方式更有利于填埋体中污染物的降解,渗滤液中的污染物浓度更低;准好氧填埋场的稳定化速率要大于厌氧填埋场:准好氧填埋场在封场10周后即可达到二级稳定、渗滤液水质达到二级排放标准,而厌氧填埋场在封场30周后才能达到此标准.     

Federal regulatory assessment approach at the U.S. EPA

For this presentation the data package on acrylonitrile was used as an example of the processes by which risk assessment evaluations would be performed for chemicals regulated by the Environmental Protection Agency, Office of Drinking Water. The discussion spans both regulatory and non-regulatory aspects of regulation. Developing risk assessments for EPA regulatory purposes is similar in all offices and in that context the considerations as well as the methods of assessing risks apply generally to regulatory considerations by other offices within the EPA.     

China's textbook approach to regulatory reform of the natural gas market

Natural gas, as a transition fuel, is considered essential for China's decarbonization and local air protection policy, yet the regulatory structure China relies on to promote gas use remains under-researched. China's central government recognizes the need for market-based reforms of the gas sector, but what regulatory and policy adjustments are necessary to reorganize gas supply on a market basis? The textbook approach to energy market reform, and its implementation in the European Union, provides important guidance on how to create a regulatory basis to support competition in gas supply, provided national institutional characteristics are taken into account. This article engages in a comparative analysis of China's gas market reform policies and their implementation at the provincial level, focusing on Guangdong, a laboratory of economic reforms in China. The analysis demonstrates that reforms in 2019–2021 integrated key aspects of the textbook model in China's gas regulations, including third-party access, price deregulation and ownership unbundling. However, the textbook is of limited use to address remaining institutional barriers to reform, including resistance of distribution monopolies to competition from state-owned enterprises. Guangdong's experience shows that reform is possible, but only if accompanied by institutional and pricing adjustments reconciling vested interests with competition.     

新标准下卫生填埋场垃圾渗滤液的处理对策

采用厌氧/BAF/两级AO/MBR/RO工艺处理垃圾卫生填埋场渗滤液,效果良好,对COD、氨氮和总氮的平均去除率可分别达到99.3%、99.3%和93.2%,出水水质全部达到<生活垃圾填埋场污染控制标准>(GB16889-2008).直接运行成本为12.5元/m3,远低于一般渗滤液处理技术.     

垃圾焚烧发电技术

阐述目前国内外垃圾焚烧发电工艺技术,重点介绍各种垃圾焚烧技术、垃圾焚烧发电系统及环保特性、可靠性。垃圾焚烧循环流化床锅炉是适应我国国情的环保型锅炉,应不断地完善其技术。     

A hybrid approach to building a multi-dimensional business intelligence system for electricity grid operators

This paper proposes a new methodology for building multi-dimensional data-warehousing and business intelligence systems for utility companies. The proposed approach can be used by any utility company that wishes to take advantage of the principles and recommendations gained through a critical analysis of the Kimball and ASAP methodologies. The results show that this new approach can be incorporated as a cornerstone for business intelligence systems operating in a data-rich environment. It can be successfully designed and used for various reporting purposes of various business segments of an organization. The approach was tested by applying it to electricity market analysis of the Serbian energy transmission system and market operator “Elektromreža Srbije” in the context of smart-grid technologies.     

Protecting Water Resources from the Effects of Landfill Sites: Foxhall Landfill Site

This paper describes the work carried out to protect both ground and surface waters close to the Suffolk County Council Foxhall landfill sites. Monitoring of groundwater showed that a deterioration was occurring, likely to impact adversely on water quality in the adjacent stream. The National Rivers Authority expressed their concern, and measures have been introduced to eliminate this pollution risk. Contaminated groundwaters flowing towards a local watercourse are intercepted by a 'Trammel'type geotextile cut-off drain and flow to a central collection sump. Automatic monitoring of contaminant levels at this point controls the treatment and disposal options. Where quality is unacceptable for discharge to the local watercourse, the intercepted groundwaters are treated by irrigation onto the capped surface of a restored landfill. If quality remains unacceptable for discharge, further irrigation treatment or discharge to a percolation area utilizing aquifer attenuation properties is possible.     

垃圾填埋场地基设计

通过分析垃圾填埋区地基变形可能产生的地基沉降过大,排渗系统倒坡,地基产生局部或整体剪切破坏等工程问题,指出填埋区地基设计的重点在于地基沉降计算与稳定计算。通过计算实例,总结出填埋区地基计算的关键因素及其特殊性。     

Landfill Lining for Leachate Containment

There is an increasing need for engineered liners to prevent the escape of leachate and to control the migration of landfill gas. This has been influenced by new European and UK legislation and codes of practice.
General principles of site design are explained, followed by a review of the advantages and disadvantages of different liner systems, including mineral liners (natural clay, mudrocks and soil/bentonite admixtures), geomembranes and composite liners.
The need for conservative factors of safety in site design and high standards of quality control, involving full-time supervision and independent certification of the installation works, are considered essential to ensure the effectiveness of the barrier.
There is no one ideal liner material. Composite mineral/geomembrane liners provide the highest degree of security against leakage and, as such, should be considered as 'the norm'rather than for use only in particularly high-risk situations.