干燥风机噪声治理

介绍了对干燥风机噪声的防治措施，效果较好，达到了国家标准     

城市街道汽车污染扩散规律模拟研究

如何简单而准确地模拟城市街区污染的扩散规律,对于城市汽车污染控制决策具有重要的意义,从大量实测数据,分析了风速风向等影响街道峡谷污染物扩散的主要因素,采用丹麦开发的街道峡谷模式ＯＳＰＭ,对汽车污染扩散规律进行模拟研究。与北京实测数据对比结果表明,该模式较好地模拟昼间风速风向对街道峡保内汽车污染扩散的影响,比较准确地反映了峡保中流场的主要特征,以及汽车排放污染物的扩散规律,污染物浓度与风速的倒数摈心     

城市污水厂污泥热干燥处理技术及其应用分析

提出采用热干燥处理技术进一步降低脱水泥饼的含水率，介绍了现行的污泥热干燥处理技术，并就该技术在污泥处理中的应用尤其是在焚烧预处理中的应用进行了分析。     

清洁生产审计在环境影响评价中的应用

在建设项目环境影响评价现状基础上,提出清洁生产的概念,并将清洁生产审计贯穿于环境影响评价工作中,同时对清洁生产下的环境影响评价程序及方法等进行了分析,指出了今后环境影响评价工作的发展方向。     

中国首批环境标志产品的研究

环境标志产品是对产品设计、生产、使用、处置全过程的环境行为进行环境评价合格的产品。通过研究产品与控制全球环境问题的关系,按照产品与人民生活的相关程度以及产品环境行为的先进程度,确定了我国首批环境标志产品的标准,做为产品评价依据。其中家用制冷器具和气溶胶(发胶、摩丝等)对禁用和替代ＣＦＣ具有重要意义;无铅汽油、水性涂料、降解地膜等对改善生态环境、保护人体健康有积极作用;再生卫生纸对废纸回收和利用具有导向意义。本文介绍的原则和方法,将做为１９９４年继续筛选环境标志产品和制订其标准的依据。      

SW型脱硫剂脱硫性能的研究

以硫酸烧渣为主要原料制备ＳＷ型脱硫剂,并对其脱硫性能进行了研究,对半水煤气、葡萄酒厂污水处理产生的沼气和焦炉煤气、水煤气中的Ｈ２Ｓ进行了工业脱硫试验,经半年以上运行证明,可使其Ｈ２Ｓ含量从３０００－５０００ｍｇ／ｍ＾３降为２０ｍｇ／ｍ＾３以下（符合国家标准）,当脱硫剂工作硫容达３０％时可返回硫酸生产中,再生周期一般为３个月,其主要性能达到国内外同类产品水平。     

PSA处理含氟矿井水的研究

研究了用聚硅酸铝混凝剂处理煤矿含氟矿井水，处理后，氟，ＳＳ和ＣＯＤ的去除率分别为８８％，９８．５％和９６．８％，处理后的水质可用于矿井除尘或生活用水。     

Bioaccumulation of heavy metals by Phragmites australis cultivated in synthesized substrates

Accumulation of heavy metals from various oxides with adsorbed cadmium by wetland plant Phragmites australis was studied to evaluate the fate of heavy metals in the sediment of constructed wetlands. Hoagland solution was used as nutrition supply, and single metal oxide with adsorbed cadmium was applied as contaminant to study the accumulation characteristics of cadmium and the substrate metals by P. australis. After 45-d treatment, the bioaccumulation degree in root followed the order: Al(OH)₃ > Al₂O₃ > Fe₃O₄ > MnO₂ > FeOOH. Heavy metals absorbed by P. australis were largely immobilized by the roots with little translocation to aboveground parts.     

Persistently elevated AFP and AChE in amniotic fluid from a normal fetus following demise of its twin

Intrauterine fetal demise (IUFD) in one of twins at 12 weeks of gestation was accompanied by markedly elevated maternal serum alpha-fetoprotein (AFP) at 17 and 18 weeks. Amniotic fluid AFP from the healthy surviving twin's sac at 18·5 and 23 weeks was also greatly increased along with a positive acetylcholinesterase (AChE) band. Persistently elevated AFP and positive AChE so long after fetal demise–-6·5 and 11 weeks post IUFD–-has not, to our knowledge, been previously described. In similar cases, high level ultrasound and careful placental examination at birth should be utilized to search for fetal abnormalities or multiple pregnancy with IUFD.