宁波市常用家电产品回收回用调查分析

通过对宁波市居民的家电产品系列问题的随即抽样问卷调查,阐述了宁波家电拥有量、使用寿命、更新原因和速率、居民购买家电和处理废旧家电时环保意识和行为,了解了本地区废旧家电的基本情况以及废旧家电处理的途径,在对调查数据进行分析的基础上,给出了结论和建议。     

A2/O除磷新工艺的研究及其微生物学原理

在除磷与脱氮的联合工艺中,由于两过程所涉及的微生物在性质及最佳代谢条件上有较大差别,在同一处理流程中很难达到协调而稳定地运行问题,在传统生物除磷工艺原理基础上,就新近发现的A2/O反硝化除磷技术新工艺及其微生物学原理特点,重点介绍A2/O反硝化除磷过程中的缺氧阶段中以NO-3作为最终电子受体时,厌氧条件下释磷规律,缺氧条件下磷的去除效果以及缺氧阶段氮的变化情况.     

我国废旧电子电器产品拆解技术、设备应用现状及改进建议

从我国废旧电子电器回收行业基本情况、专业技术人才情况、相关企业拆解技术设备情况等方面,阐述了我国废旧电子电器产品拆解技术、设备应用现状,并提出相关改进提升建议。     

WEEE and portable batteries in residual household waste: Quantification and characterisation of misplaced waste

A total of 26.1 Mg of residual waste from 3129 households in 12 Danish municipalities was analysed and revealed that 89.6 kg of Waste Electrical and Electronic Equipment (WEEE), 11 kg of batteries, 2.2 kg of toners and 16 kg of cables had been wrongfully discarded. This corresponds to a Danish household discarding 29 g of WEEE (7 items per year), 4 g of batteries (9 batteries per year), 1 g of toners and 7 g of unidentifiable cables on average per week, constituting 0.34% (w/w), 0.04% (w/w), 0.01% (w/w) and 0.09% (w/w), respectively, of residual waste. The study also found that misplaced WEEE and batteries in the residual waste constituted 16% and 39%, respectively, of what is being collected properly through the dedicated special waste collection schemes. This shows that a large amount of batteries are being discarded with the residual waste, whereas WEEE seems to be collected relatively successfully through the dedicated special waste collection schemes. Characterisation of the misplaced batteries showed that 20% (w/w) of the discarded batteries were discarded as part of WEEE (built-in). Primarily alkaline batteries, carbon zinc batteries and alkaline button cell batteries were found to be discarded with the residual household waste. Characterisation of WEEE showed that primarily small WEEE (WEEE directive categories 2, 5a, 6, 7 and 9) and light sources (WEEE directive category 5b) were misplaced. Electric tooth brushes, watches, clocks, headphones, flashlights, bicycle lights, and cables were items most frequently found. It is recommended that these findings are taken into account when designing new or improving existing special waste collection schemes. Improving the collection of WEEE is also recommended as one way to also improve the collection of batteries due to the large fraction of batteries found as built-in. The findings in this study were comparable to other western European studies, suggesting that the recommendations made in this study could apply to other western European countries as well.     

Depollution benchmarks for capacitors,batteries and printed wiring boards from waste electrical and electronic equipment (WEEE)

The article compiles and analyses sample data for toxic components removed from waste electronic and electrical equipment (WEEE) from more than 30 recycling companies in Switzerland over the past ten years. According to European and Swiss legislation, toxic components like batteries, capacitors and printed wiring boards have to be removed from WEEE. The control bodies of the Swiss take back schemes have been monitoring the activities of WEEE recyclers in Switzerland for about 15 years. All recyclers have to provide annual mass balance data for every year of operation. From this data, percentage shares of removed batteries and capacitors are calculated in relation to the amount of each respective WEEE category treated. A rationale is developed, why such an indicator should not be calculated for printed wiring boards. The distributions of these de-pollution indicators are analysed and their suitability for defining lower threshold values and benchmarks for the depollution of WEEE is discussed. Recommendations for benchmarks and threshold values for the removal of capacitors and batteries are given.     

基于PSTN网的火灾安全区域网络监控系统

随着自动电子消防报警系统的广泛使用,将现行的消防电子报警作为子系统,对其运行状况的自动统一监控和管理变得愈来愈重要。针对这种情况,笔者提出了构建区域火灾网络监控系统的新思路。即以ＰＳＴＮ（公用交换电话网）为信息传输途径,利用计算机及ＭＯＤＥＭ 卡,配合自动检测软件和通信接口技术与方法, 实现自动电子消防报警系统运行状况的监控和自动接收系统报警信号。该系统的实现,将大大提高现行消防电子报警系统的管理水平,降低火灾给人类造成的危害     

汽车电子电器零部件产品通用测试要求解析

汽车电子电器零部件性能在各种环境下的可靠性测试具有通用性,本文简单解析了国内外汽车电子电器零部件产品通用测试要求的差异,对通用测试要求中常见的微小电信号实时监控方案做出了一点探讨.     

电子废弃物再生利用产业化的问题与对策研究

分析了目前我国电子废弃物再生利用产业化过程中存在的主要问题,提出了相关的对策和措施,并结合电子废弃物的特点提出了电子废弃物处理路线的设想。     

IEC61508标准指导城市轨道交通设备安全功能指标实施

IEC61508标准提出电气／电子／叮编程电子（E／E／PE）安全相关系统的功能安全,成为了电气／电子／可编程电子（E／E／PE）安全相关系统的功能安全的基本和核心标准。城市轨道交通设备越来越多地采用了电气／电子／可编程电子系统（E／E／PES）,确保这些设备功能安全指标的落实是工程建设,以及运营安全的一个重要组成环节。     

南昌电厂210m烟囱定向爆破拆除安全技术

介绍了210 m高钢筋混凝土烟囱定向控制爆破拆除的成功经验,着重介绍了电子数码雷管起爆网络和爆破安全技术,提出了防飞石、防飞溅、减振、降尘综合防护方法。