发展液化石油气汽车的推进对策

结合上海３年来ＬＰＧ汽车推进工作的实践，探讨ＬＰＧ汽车发展推进对策和配套优惠政策的制定和完善。     

特非那丁格氏工序的清洁生产

采用合理工艺，使生产过程废物最少化是清洁生产的主要内容之一，在分析特非那丁格氏工序污染物产生的基础上，通过改进工艺，将过去排放的有机溶媒回收套用，减少污染物排放的同时，增加了经济效益。     

农村能源与环境保护

分析中国农村能源的构成、农村用能与生态环境,探讨农村能源的开发利用。     

厌氧水解-活性污泥法的生命周期能耗分析

运用生命周期分析技术可从全过程的视角识别和比较不同城市污水处理工艺在其生命周期各个阶段的能耗 ,并在此基础上提出改善其能效的措施。本文运用LCA方法对厌氧水解 -活性污泥法处理系统从其原材料开采和加工开始直至污水厂施工建设、处理运行以及废弃拆除的LC全过程能耗进行了识别和量化分析 ,并与普通活性污泥法进行了平行对照。研究结果表明 ,在微孔和穿孔管两种曝气条件下与普通活性污泥法相比 ,厌氧水解法的LC能耗分别节省 14.0 %和 17.6%。由于污泥产量较低 ,厌氧水解法的比能耗大幅度提高 67.7%～ 77.7%。     

Dioxin removal in “energy from waste plants” - comparison of air pollution control methods

The graph below shows the emitted dioxin - equivalents (Eadon) in grams per year in flue gas from municipal solid waste incinerators with various air pollution control methods for plants of capacity of 200 000 ton municipal solid waste (MSW) per year.

Full-size image (15K)

With optimized combustion and an effective air pollution control system the emissions of dioxins can be kept very low (concentrations below 0.1 ng/m³n).

With a very effective air pollution control system the total emission from all Swedish MSW-incinerators burning approximately 1.5 Mton/year will by 1990 be below 2 g/year - a drastic reduction from approximately 15 g today. As the total dioxin - equivalent emission to the environment in Sweden in the year 1987 was almost 500 g we see that municipal waste incineration really is on the way to solve their dioxin problem.     

粉煤灰的有效利用

介绍了我国粉煤灰利用状况及政策，结合实例分析了粉煤灰的有效利用和清洁生产对促进粉煤灰有效利用的作用。     

Cleaner industrial production practice in Ethiopia: problems and prospects

In this article, cleaner industrial production (CIP) from the Ethiopian perception, the conditions for implementation, the barriers encountered during implementation and the strategies used are discussed. In addition, the outcome of the project is highlighted.The barriers related to the implementation of Industrial CIP in Ethiopia are mainly due to:

• the lack of awareness on the part of the industrial sector;

• the lack of commitments from the high level management;

• the nature of the existing factories.

Cleaner production as a concept is not yet fully understood in Ethiopia and for this a vigorous awareness campaign has to continuously be conducted through all possible media. So far, awareness seminars, workshops and demonstration projects have been held and proved to be effective in facilitating the implementation of National Cleaner Industrial Production Project of Ethiopia (NACIPPE 1 and 2). It was, however, sad to note that at the time of the campaign, government promulgated a decree to the effect that state-owned factories were going to be privatized any time, which, to a considerable extent lowered the management's commitment towards the CIP projects.The first and second phases of NACIPPE 1 and 2 were implemented in 1997 and 1998 respectively. Forty industries from public and private sectors participated in the training and waste audit exercises and a total of 61 audit experts and 156 audit assistants were trained. The package was divided into three technical training components and three waste audit practices. The technical support was extended by hiring a private enterprise, Chem. Tech. Center Sh. Co.     

建设项目清洁生产能力评估方法

清洁生产能力评估将清洁生产概念引入建设项目环境影响评价，对实现经济与环境可持续发展具有重要意义。探讨清洁生产能力评估的必要性，可能性及方法，并对前景进行展望。     

建设项目环境影响评价的清洁生产分析

根据目前建设项目环境影响评价中的清洁生产分析存在的实际问题,提出了一种比较完善的清洁生产分析方法。即原材料指标，产品指标，资源指标和污染物产生指标定性，定量分级综合评价法，并用3种生活垃圾处理方法为对象进行了实例验证。对在环境影响评价中开展清洁生产分析工作提出了进一步的建议。