增湿塔给水(喷雾)自控系统

由大连电子研究所开发的增湿塔给水（喷雾）自控系统，适用于水泥行业的电除尘系统。     

我国电子信息产业污染及其环境健康管理对策

20世纪90年代以来,我国电子信息产业迅速发展,但在高速增长的同时,电子信息产业在加工、制造和工厂废物处理过程中也造成了严重的环境污染和健康损害问题,不仅危害环境,也危害普通周边居民和职业工人的健康.本文通过学习借鉴发达国家电子信息产业的环境健康管理经验,结合我国国情和现状,提出了针对我国的电子信息产业环境污染及其人群健康损害的环境健康管理对策和建议.     

电子垃圾何去何从

这年代电视从黑白型已更新到数码型，IT产业也在不断扩充，电脑、手机更新一代又一代。当然，随之而来的电子垃圾也就更多，二手市场也更热闹了，在电子产物频繁地更新换代的喧闹中一片繁荣。     

保护臭氧层成绩斐然

据联合国开发计划署4月13日消息，中国陕西省西安市彩虹电子集团公司彩色显象管总厂成功地淘汰了大量的消耗臭氧层物质，成绩斐然，受到表彰。2004年4月13日星期二晚在华盛顿召开的颁奖仪式暨晚宴上，美国环境保护局授予彩虹彩色显象管总厂高级工程师兼项目主管马明清先生”2004年平流层臭氧层保护个人奖”．以表彰他对环保事业做出的杰出贡献。     

用电子辐射法使丁基橡胶再生

丁基橡胶作为一种特种合成胶，是轮胎工业中制造内胎、水胎、胶囊和垫带及建材防水制品的重要原材料。随着我国新兴支柱产业──汽车工业的快速发展，各类轮胎产量将同步增长，轮胎内胎将逐步完成向丁基比、轻量化过渡的进程，此外自行车行业在维持其巨大产量．的同时，也在积极寻求技术进步，丁基自行车内胎将会大量面市。由于美国等西方国家对丁基橡胶生产技术的垄断和一次性投入过高等原因，我国尚不能生产丁基橡胶，全部需求依赖进口。按照目前我国轮胎增长的速度，预计2000年对丁基橡胶的需求量将达到们万吨，加上国际市场丁基橡胶价格…     

论无害化处理机关事业单位电子办公垃圾

通过对现有机关事业单位办公垃圾分析,提出处理电子办公垃圾的方法及有效治理措施。     

垃圾零填埋

<正>随着人类的发展,作为人类专属产物的垃圾也伴随着人类文明,不断地挑战着我们的生存环境,污浊着我们的家园。时至今日,人类早已警觉到了垃圾处理的必要和迫切。垃圾的分类投放、回收再利用、运用垃圾发电等等,人类正在想着法子将垃圾变废为宝,但是,至今还无法从根本上改变垃圾     

电子垃圾:不需开矿的金属——选自《蓝色经济》经典案例

<正>市场美国消费者每天抛弃的电脑超过11万台。每年电子垃圾数量已增加至45000万台。美国在过去十年报废的电子设备大约为30亿台。电子垃圾是城市固体垃圾中增长最快的类别,不幸的是,这些废物的回收平均不到10%。最终进填埋场或焚烧炉。2012年,全球电脑销售量达到     

Bioavailability and tissue distribution of Dechloranes in wild frogs (Rana limnocharis) from an e-waste recycling area in Southeast China

Dechlorane Plus(DP), a flame retardant used as an alternative to decabromodiphenylether, has been frequently detected in organisms, indicating its bioaccumulation and biomagnification potential in aquatic and terrestrial species. However, little data is available on the bioaccumulation of DP in amphibians. Dechlorane Plus and its analogs(DPs) were detected in the liver, muscle and brain tissues of wild frogs(Rana limnocharis), which were collected from an e-waste recycling site, Southeast China. DP, Mirex, Dec 602 and a dechlorinated compound of DP(anti-Cl11-DP) varied in the range of 2.01–291, 0.650–179, 0.260–12.4, and not detected(nd)–8.67 ng/g lipid weight, respectively. No difference of tissue distribution was found for syn-DP, Mirex and Dec 602 between the liver and muscle tissue(liver/muscle concentration ratio close to 1, p 0.05). However, higher retention was observed for anti-DP and anti-Cl11-DP in the frog muscle relative to the liver tissue(liver/muscle concentration ratio 1, p 0.05). Additionally, the blood-brain barrier was found to work efficiently to suppress these compounds entering brain tissues in this species(liver/brain concentration ratio 1, p 0.05), and the molecular weight was a key factor impacting the extent of the blood-brain barrier. Compared to levels in the muscle and brain tissue, a preferential enrichment of syn-DP was observed in the liver tissue, suggesting the occurrence of stereo-selective bioaccumulation in the wild frog.     

Effects of cathode potentials and nitrate concentrations on dissimilatory nitrate reductions by Pseudomonas alcaliphila in bioelectrochemical systems

The effects of cathode potentials and initial nitrate concentrations on nitrate reduction in bio- electrochemical systems （BESs） were reported. These factors could partition nitrate reduction between denitrification and dissimilatory nitrate reduction to ammonium （DNRA）. Pseudomonas alcaliphilastrain MBR utilized an electrode as the sole electron donor and nitrate as the sole electron acceptor. When the cathode potential was set from -0.3 to -I.1 V （vs. Ag/AgC1） at an initial nitrate concentration of 100 mg NO~-N/L, the DNRA electron recovery increased from （10.76 ± 1.6）% to （35.06 ± 0.99）%; the denitrification electron recovery decreased from （63.42 ± 1,32）% to （44.33 ± 1.92）%. When the initial nitrate concentration increased from （29.09 ± 0.24） to （490.97 ± 3.49） mg NO3-N/L at the same potential （-0.9 V）, denitrification electron recovery increased from （5.88 ± 1.08）% to （50.19 ±2.59）%; the DNRA electron recovery declined from （48.79 ±1.32）% to （16.02 ± 1.41）%. The prevalence of DNRA occurred at high ratios of electron donors to acceptors in the BESs and denitrification prevailed against DNRA under a lower ratio of electron donors to acceptors. These results had a potential application value of regulating the transformation of nitrate to N2 or ammonium in BESs for nitrate removal.