工业布局中厂址选择工作应考虑的问题

根据生产布局学和空气污染气象学等，对影响厂址选择的主要因素和选择方法进行了论述，阐明了厂址选择工作的必要作，唤起各极政府和工业企业对厂址选择工作的重新认识。     

招标信息

工程概况：该项目建设地点位于云南省,供水范围为五华区西翥片区,包括沙朗、厂口及桃园三个片区,编制范围为取水、原水输水、新建西翥自来水厂和新建至沙朗、桃园、厂口片区的三条主输水管,各片区内配水管网的建设不在本工程范围内,厂址选择在三多大村西侧空地,总设计规模8．0万m3／d,征地范围共108亩,净水厂内泵站供水量需达到8．0万m3／d,投资估算约8925.3万元,建设资金来自政府投资及企业自筹,资金来源已落实。     

建设项目环评厂址比选案例分析

从环境影响评价角度,以某省某化工企业厂址比选为例,采用"政策红线"剔除法和加权系数细化比较分析法相结合的分析方法,从产业定位及用地规划、环境敏感点、交通及配套设施、区域环境等方面进行筛选和优化,最终得到最佳厂址,并对项目环评在厂址比选中的作用进行了探讨。通过案例分析不难发现,在项目前期,积极开展项目环评厂址方案比选,不仅有助于削减项目建设对周围环境的影响,实现经济、社会、环境和谐发展,而且在获得公众支持和节省投资等方面有重要作用。     

中小城市污水处理厂设计中应注意的几个问题

针对当前中小城市污水处理厂设计中存在的厂址选择不合理、处理工艺盲目求新求变、设备选择不切合实际等问题进行探讨，结合已建成污水处理厂运行实际进行分析，提出优化厂址选择、结合当地实际选择处理工艺、根据需要选择设备等解决问题的办法。     

攀钢全面环境管理的实践性探讨

由于历史背景决定,攀钢在建设过程中缺乏生态法则的制约,不管在厂址选择、合理布局、工艺结构、原燃料组成、装备水平以及管理水平等,都在不同程程上存在着生产与生态的矛盾。近几年来,通过企业整顿,加强环保工作领导,狠抓环境管理,逐步开展污染治理和环境绿化,环境面貌发生了显著变化: 一是改善了环境质量 1976年车间岗位粉尘合格率只有     

葫芦岛龙湾新区污水厂工艺比选

本文介绍了葫芦岛市龙湾新区污水厂厂址及生物处理工艺等的选择。通过技术经济比较,选择建二处污水厂分别处理新、老城区的污水,并建两座小型地埋式污水处理站,选择SBR工艺作为新区污水处理厂二级生物处理工艺。     

健全企业环保经济责任制

我厂是一个年产六万吨合成氨、十一万吨尿素的中型氮肥企业。位于平顶山市西南郊、穿越市区的湛河上游。由于建厂时对环保工作重视不够,厂址选择不合适,又没有严格执行“三同时”原则,虽然上了一些环     

城镇污水处理厂项目环境影响评价中的重点分析

根据城镇污水处理厂项目的特点,对此类项目环境影响评价中的厂址选择、处理规模及进出水水质的确定以及地表水、恶臭环境影响预测及二次污染控制、污泥处置方案的可行性论证等重点内容进行了分析。     

水泥脱硝的个性化设计与工程实践

随着水泥窑脱硝技术从理论探讨走向实际应用,水泥生产企业在NOx减排方案的选择上,需综合考虑区域特点、炉型特性和长远环保要求,采用专业的调研检测、个性化方案设计和周全的工程实施,以有利企业发展和满足环保要求。     

水泥行业除尘设施费用函数分析

本文以乌鲁木齐市水泥行业除尘设施效益调查的数据为基础,为分析评价除尘设施的技术、经济效益指标,建立了该市水泥行业除尘设施的建设费用函数、运行费用函数和成本效益函数,对水泥行业选择除尘方案提供了方法。     

Analytic hierarchy process helps select site for limestone quarry expansion in Barbados

Site selection is a key activity for quarry expansion to support cement production, and is governed by factors such as resource availability, logistics, costs, and socio-economic-environmental factors. Adequate consideration of all the factors facilitates both industrial productivity and sustainable economic growth. This study illustrates the site selection process that was undertaken for the expansion of limestone quarry operations to support cement production in Barbados. First, alternate sites with adequate resources to support a 25-year development horizon were identified. Second, technical and socio-economic-environmental factors were then identified. Third, a database was developed for each site with respect to each factor. Fourth, a hierarchical model in analytic hierarchy process (AHP) framework was then developed. Fifth, the relative ranking of the alternate sites was then derived through pair wise comparison in all the levels and through subsequent synthesizing of the results across the hierarchy through computer software (Expert Choice). The study reveals that an integrated framework using the AHP can help select a site for the quarry expansion project in Barbados.     

Economic comparison of recycling over-ordered fresh concrete: A case study approach

Recycling of construction material helps save the limited landfill space. Among various types of materials, concrete waste accounts of about 50% of the total waste generation. Current off-site practices for ready mixed concrete batching plant generate a significant quantity of fresh concrete waste through over-order from construction sites. The use of concrete reclaimer is one of the methods to reclaim these concrete wastes, which separates coarse aggregate, sand and cement from fresh concrete. Although there are some concrete producers in Hong Kong providing concrete reclaimers in their plants, they are only used to flush and dilute the cement slurry from the concrete, which will still be ultimately send all to dumping areas. The reluctance of most concrete producers in reclaiming aggregate from the concrete waste is due to its high cost of treatment and lack of space around the plant. Therefore, this paper puts forth a scheme of economical considerations in recycling over-ordered concrete by concrete reclaimer. A comparative study on costs and benefits between the current practices and the proposed recycling plan is examined. The study shows that the costs of the current practices in dumping over-ordered fresh concrete waste to landfill areas are double that of the proposed aggregate recycling plan. Therefore, the adoption of concrete reclaimer in recycling the over-ordered fresh concrete can provide a cost-effective method for the construction industry and help saving the environment.     

污染底泥掩蔽材料筛选综述

随着经济的高速发展,水体底泥污染已成为世界性的一个环境问题。掩蔽修复是一种修复效果明显,且工程造价较低的水体底泥修复技术,而掩蔽技术的关键在于掩蔽材料的选择。本文主要介绍了水泥、粉煤灰、沸石、方解石、铝盐等研究较为成熟的且具有应用前景的掩蔽材料,分析其各自的原理及优缺点。同时作者在文章中提出了一种新的掩蔽剂——净水厂改性污泥,对其的可行性进行了分析。并就掩蔽材料的选择的技术要求以及原则作出分析。     

新型干法水泥回转窑废气产生量与产量的关系浅谈

本文通过对四川省采用新型干法水泥生产企业回转窑废气监测数据进行统计分析,建立了新型干法水泥回转窑废气产生量与水泥熟料产量的关系数学模型,并对模型进行了验证,该模型既可以用于监测人员现场核查企业填报生产量真实性,也可以用于判断实测废气量的合理性。     

企业可持续发展评价指标体系的选定原则及构建框架

为了制定企业可持续发展的战略决策,须制定可持续发展的指标体系,并依据这一体系对数据和资料进行收集、整理和分析,从而确定可靠而有效的政策方针。文中论述了可持续发展指标体系的定义、选定标准、原则和可持续发展的评价指标体系,提出了压力-状态-响应框架模型以及不同层次的指标体系框架。该指标体系分为总体层、系统层、状态层、变量层和要素层五个等级。对于持续发展的表征指标及对目前发展的可持续性评估,还需要长时间和切合实际的探讨。     

浅析宁夏水泥行业清洁生产水平现状及对策

水泥行业是宁夏自治区重要的经济支柱之一,同时也是一个污染极严重的产业,给当地环境质量带来了严重影响。通过对宁夏自治区内部分水泥企业进行清洁生产水平调研,从企业的生产规模、生产装备及资源能源利用情况等方面,与《清洁生产标准水泥工业》（HJ/T467-2009）进行对比分析,总结了区内水泥行业清洁水平存在的共性问题,并依此提出了相应的对策建议。     

如何改进污水处理厂的BOT服务模式

如何更好地让BOT模式服务于污水处理事业？本文提出三条建议：第一,BOT模式不仅适合城市污水处理厂，也适合市政管网的建设；第二，用BOT模式时，应尽可能地选择具有设计污水厂能力的企业；第三，政府要树立让企业盈利、服务和监督企业的观念。     

Energetic valorization of SRF in dedicated plants and cement kilns and guidelines for application in Greece and Cyprus

A debate is still open on issues of waste to energy methodologies aiming to answer to questions of particular relevance, such as whether the concept of SRF/RDF production can be applied directly to MSW through the Mechanical–Biological Treatment (MBT) process, when selective collection acts as a virtual pre-treatment of the same, or if the use of SRF/RDF as alternative fuel in cement kilns is the most sustainable solution. In this study, two scenarios were analyzed and compared: (a) the use of SRF in a new dedicated thermal plant for electricity production and (b) the use of SRF as an alternative fuel in an existing cement plant. The comparative assessment was based on principles of Sustainable Waste Management embracing technical and cost issues, environmental protection, industrial ecology and symbiosis. The application of SWOT analysis showed that the use of SRF in cement kilns is more sustainable compared to its use in a new dedicated plant for electricity production.     

生态文明背景下的环保企业文化

文章从企业文化的视角，论述了企业发展与生态文明建设并重是历史发展的客观要求，是促进社会与企业和谐的重要内容，是可持续协调发展的战略需要。环保企业只有将生态文明意识与环境保护责任全面地融入企业文化建设，才能更好地增强企业的凝聚力和竞争力。     

不同种植方式对水生植物生长的影响

水生植物恢复是水体生态恢复与重建的一个关键,而人工快速大面积恢复沉水植物存在较大的难度。在淀山湖318国道近岸水域生态带内,运用水泥涵管覆土种植、箩筐覆土种植、纱布包裹覆土种植、编织袋覆土种植和竹签扦插法对水生植物进行种植。通过实验得出,运用水泥涵管覆土种植的芦苇存活率比用箩筐覆土种植的存活率高;运用水泥涵管覆土+竹签扦插法种植的狐尾藻存活率比其他几种种植方法的存活率高,几种种植方式下的生物量无显著差异。