锅炉量化管理是企业挖潜节能的重要途径

通过对辽河油田公司有关企业开展清洁生产审核,总结出了燃料锅炉量化管理的方法。在自然对流烘干室改造、碱液浓缩炉改造、燃煤锅炉设计效率核准等实例中,该方法可昭示能耗大的"瓶颈"部位,进而为企业制定节能方案、提出具体的节能改造措施提供了科学依据。实践证明:实施锅炉量化管理是企业挖掘节能潜力的重要途径。     

电解金属锰行业清洁生产审核节能减排实例分析

以广西某锰业公司清洁生产审核为实例,通过对企业生产现状现场调查,确定审核重点为制液车间,并对能耗高、污染大的生产环节开展清洁生产审核,分析方案实施后的经济效益、环境效益。结果表明,电解金属锰行业实施清洁生产是实现节能减排的重要措施之一,为电解锰行业清洁生产审核提供依据。     

烧结厂清洁生产的实践

首钢矿业公司烧结厂结合自身生产特点，开展清洁生产工艺实践，应用了小球烧结、重油乳化、余热锅炉、除尘灰制粒等节能、低污染的清洁生产技术，将原低效除尘器全部改造成高效电除尘器，在生产全过程中有效预防、控制、削减污染物的产生量，既减少了环境污染，又提高了综合经济效益，形成有矿业烧结特色的清洁生产管理方法。     

加快石油企业清洁发展的思路探索

实施清洁生产是石油企业实现"节能、降耗、减污、增效"和赢得市场的最佳选择。文章分析了清洁生产发展历程、石油企业清洁生产发展现状、发展清洁生产的保障措施、列举了长庆油田清洁生产典型案例。得出以下结论:石油企业实施的清洁生产治污观念必须由以前的末端治理变为源头和全过程控制;清洁生产纳入常规化管理,并与企业环境管理有机结合,完善奖惩激励机制,激发中低层环保管理者工作动力;转变认识、营造氛围、投入资金、创新技术、完善机制是促进清洁生产可持续发展的保障。     

9行业清洁生产评价标准将发布

工信部今年将通过开展清洁生产技术应用示范、强化清洁生产审核、加强电子信息产品污染控制等措施，推行工业领域清洁生产。近日，将发布实施《工业企业清洁生产审核技术导则》和《工业清洁生产水平评价标准编制通则》。     

井下作业清洁生产的影响因素及综合治理措施

以江苏油田为例,从油水井维修前期、维修中期、污染物后续处理等方面分析了影响井下作业清洁生产的主要因素,介绍了该油田井下作业实施清洁生产的综合措施及井下作业清洁生产新工艺、新技术的基本原理。该油田在井下作业中实施了污油污水资源化处理技术,取得了较好的效果。此项技术对于石油企业推行清洁生产具有借鉴意义与推广价值。     

企业实施清洁生产的途径与建议

清洁生产是实现企业可持续发展的基础。本文从原辅材料、产品、工艺、设备、管理等方面介绍了企业实施清洁生产的途径，分析了企业实施清洁生产中存在的问题，并提出了建议。     

基于系统动力学的推进酒精企业清洁生产政策模拟

政府补贴、资源与能源价格、排污收费等政策是影响企业实施清洁生产的重要因素。本文以某酒精企业推进清洁生产的系统动力学模型为例模拟政府的政策对于企业开展清洁生产的收益的影响，为决策者调节其政策提供科学依据。     

清洁生产审核在电子线材行业的实施

通过某电子线材企业开展清洁生产审核,考察企业详细的生产工艺流程及产排污环节,针对行业生产特点,确定清洁生产审核目标,清洁生产实施后使企业获得明显的经济效益和社会环境效益,达到了"节能降耗、减污增效"的目的,为我国同类电子线材生产行业实施清洁生产审核提供了良好的借鉴。     

油气钻井节能减排及清洁生产措施实践

从钻井作业各环节进一步采取节能减排措施,对企业环境保护极为重要。结合四川油气田钻井作业实际,从生产过程中的八个环节较详细地分析论述了节能减排清洁生产的主要措施,以龙岗10井为清洁生产示范工程,介绍了其清洁生产与节能减排所取得的绩效,处理后水质达到《污水综合排放标准》(GB8978-1996)一级标准,清洁生产主要指标达到中国石油天然气集团公司规定的钻井清洁生产指标的二级指标要求。     

炼化企业低温余热利用技术探讨＊

目前炼化企业有大量的低温余热需要回收,了解低温余热的来源、回收途径和技术,对提高低温余热利用效率十分重要。文章对炼厂低温余热的主要来源、利用途径和技术进行综合分析,提出炼厂低温余热回收利用的一些建议。     

进口废五金类加工利压定点企业管理研究

随着我国进口废物环境管理与政策的完善,进口废五金电器、废电线电缆、废电机定点加工利用企业管理逐步完善,但仍存在行业技术装备水平和管理规范性低等问题。本文详述了定点企业生产布局、生产设备、污染治理设施及管理制度的现状及存在问题,并提出相应的建议,为进1：2废五金类企业的发展提供指导依据。     

危险废物处置中心物化处理浅析

介绍了一套危险废物处置中心物化处理系统的工艺原理、工艺流程（废酸碱及重金属废液处理、废乳化液处理）,与国内类似企业物化工艺进行对比,分析了系统的优缺点。结合国内危险废物处置现状和运行管理经验,进行了优化完善,进一步提高系统的经济性和稳定可靠性,为同类企业提供参考和借鉴。     

DISTRIBUTED DISCHARGE OF COOLING WATER ALONG DIRECTION OF STREAM FLOW1

ABSTRACT. A multiple-outfall system for cooling water disposal which is distributed along the direction of stream flow is analyzed. The results provide a simple method of preliminary design of a cooling water discharge outfall system and for a quick extimate of water quality of a polluted stream. It is shown that a properly designed distributed discharge system is capable of preventing serious pollution due to localized discharge of wastes and waste heat; however, the final design of the discharge system should take into account alternative schemes of waste heat disposal and their economic consequences.     

化工区风险源的灰色聚类分级方法的研究

建设化工区需对企业进行合理规划布局，且化工区风险预警和防范具有优先性问题，需要对企业进行有效的风险分级。现有研究中的区域风险源分级方法上存在较大的不足。根据化工区风险源的特点，基于环境风险评价和灰色系统的基本理论，探索性的将灰色聚类分析方法应用于化工区风险源分级中。建立了一套适合化工园区的指标，对各个企业进行聚类分析，划分风险等级。以大连市某化工区为例，筛选8个指标，并选取了6个化工企业进行灰色聚类分析。将它们归为4个不同的风险级别。该方法不仅能较全面地反映化工区各个风险源的风险级别，对风险源的规划、布局和管理起到较好的决策支持作用，而且能指导预警和防范体系的建立，合理分配有限的资源。     

以循环经济理念发展钢铁强市——以迁安市为例

围绕"构建现代产业体系",迁安市依据循环经济理念,加快转变发展方式,实现资源型城市的转型。迁安市钢铁工业发展循环经济的潜力较大,采取钢铁工业重点项目建设,工业副产品、工业固体废物、余压、余热综合利用等节能减排措施后,取得了可观的经济效益。     

CH类有机废气焚烧工艺及设备的设计应用

结合某煤化工企业主装置配套的废气处理项目,设计一套有机废气焚烧处理工艺,处理企业产生的CH类废气,在保证安全可靠、焚烧产物达标排放的前提下,尽可能降低运行成本。同时利用系统产生的热量,产生副产蒸气,供厂区用气点使用,节能环保。     

Refrigeration waste heat utilization for drying applications: a review

ABSTRACT

Cold chain industry has a vast potential for waste heat recovery. It is a matter of importance for energy efficiency point of view, as global energy demand is increasing day by day. Ample amount of low-grade energy is either unutilized or underutilized. The heat rejected by a Heat pump or refrigeration system emerged as a promising solution for dehydration by utilizing low-grade waste heat despite higher investment. As compared to solar drying technology, heat pump drying evolved as a reliable method regarding better process control, energy efficiency, and quality of the product to be dried. Energy utilized through the refrigeration system’s waste/exhaust heat recovery in combination with or without renewable energy source enhances the overall efficiency of the system and also reduces the cost. This useful review investigated and compared the research findings of waste heat utilization through heat pump and from condenser of refrigeration system on laboratory, pilot as well as industrial scale for drying of various fruits, vegetables, and agro products. Various drying parameters like drying rate, moisture content, Specific Moisture Extraction Rate (SMER), Coefficient of Performance (COP), Exergy efficiency, and temperature as well as humidity conditions inside the drying chamber were also reviewed to promote the technological advancement of energy utilization by commercial cold storage waste heat recovery.     

Life cycle indicators for monitoring the environmental performance of European waste management

As widely recognised by EU legislation, Life Cycle Thinking (LCT) is a viable approach to support sound waste management choices. In this context, the Institute for Environment and Sustainability (IES) of the European Commission Joint Research Centre (JRC) has lead the development of macro-level, life cycle based waste management indicators to quantify and monitor the potential environmental impacts, benefits, and improvements associated with the management of a number of selected waste streams generated and treated in Europe.The waste management indicators developed make use of a combination of macro statistical waste management data combined with emissions/resource life cycle data for the different elements of the waste treatment chain. Indicators were initially calculated for the entire European Union (EU-27) and for Germany, covering several waste streams and a broad range of environmental impact categories.An indicator developed for a given waste stream captures the potential environmental impact associated with the generation and management of that waste stream. The entire waste management chain is considered, i.e. from generation to final treatment/disposal. Therefore, system boundaries for the selected waste streams include also the treatment or recycling of secondary waste (e.g. bottom ash from the incineration of household waste), and secondary products (e.g. recovered paper), as well as energy recovery.The experiences from the development of these life cycle based waste management indicators suggest that more detailed and quality-assured waste statistics are needed, especially covering the many different treatment operations and options. Also, it would be beneficial if waste statistics had a higher disaggregation level of waste categories, as well as more detailed information about waste composition. A further development of the indicators should include an increased number of waste streams, as well as calculation of the results for all Member States.     

Aggregate eco-efficiency indices for New Zealand--a principal components analysis

Eco-efficiency has emerged as a management response to waste issues associated with current production processes. Despite the popularity of the term in both business and government circles, limited attention has been paid to measuring and reporting eco-efficiency to government policy makers. Aggregate measures of eco-efficiency are needed, to complement existing measures and to help highlight important patterns in eco-efficiency data.This paper aims to develop aggregate measures of eco-efficiency for use by policy makers. Specifically, this paper provides a unique analysis by applying principal components analysis (PCA) to eco-efficiency indicators in New Zealand.The study reveals that New Zealand's overall eco-efficiency improved for two out of the five aggregate measures over the period 1994/1995–1997/1998. The worsening of the other aggregate measures reflects, among other things, the relatively poor performance of the primary production and related processing sectors. These results show PCA is an effective approach for aggregating eco-efficiency indicators and assisting decision makers by reducing redundancy in an eco-efficiency indicators matrix.