混凝沉淀-酸化水解-接触氧化工艺处理聚苯乙烯生产废水

采用混凝沉淀酸化水解生物接触氧化工艺处理聚苯乙烯生产废水,通过治理工程实际运行,结果表明:当废水CODCr平均浓度为1160mg/L时,CODCr去除率为882%,出水水质稳定,能达到设计要求。     

阜新市工业废水污染现状及防治对策

文中对阜新市的水环境现状和存在的主要环境问题进行了系统分析，提出了解决城市工业废水污染问题和措施。并针对水资源严重匮乏地区的经济与环境协调发展问题，进行了研究和探讨。     

电厂锅炉清洗废水治理工艺

电厂锅炉清洗废水中，含有高浓度的柠檬酸和丙酮肟等有机污染物。经试验，采取原水作适当稀释后，进行好氧曝气－活性炭生物膜法二级处理，ＣＯＤｃｒ总去除率可达８８％－９０％；ＢＯＤ５去除率为９０％。经两经处理后的出水，ＣＯＤｃｒ＜１００ｍｇ／ｌ，ＢＯＤ５＜５０ｍｇ／ｌ，可达到较好的处理效果。     

UV/TiO_2/H_2O_2法对高浓度有机废水降解的应用研究

用UV TiO2 H2 O2 法对高浓度有机废水降解的实验表明 ,当TiO2 、H2 O2 的投加量分别为 2 0g与 1% ,反应时间为3h时 ,CODCr、Oil、Ar OH、NH3 N、S2 - 的平均去除率分别达到 73 %、83 %、86%、5 0 %、10 0 %。此处理工艺具有除臭、除色、快速高效、不产生污泥等优势。实验过程探索了TiO2 、H2 O2 的用量对各污染物降解率的影响 ,并设计了有实用意义的反应器     

湄洲湾海水环境质量和水产业发展的关系

通过１９９５ 年１２ 月～１９９６ 年１ 月湄洲湾渔业资源调查和生物体内残毒分析，结合１９８８ ～１９９６ 年的生态环境综合调查资料，探讨以石化工业为主体的开发对湄洲湾水产业的影响。结果表明，工业发展中污染物的排放对湄洲湾生态环境和生物的不良影响正在显现，并对水产业的发展构成威胁，但在严格控制污染物排放，保护并发展水产业的情况下，湄洲湾仍能较长期保持现有的各种使用功能，维护湾内海域的生态平衡。     

世界银行贷款项目中的滇池流域工业污染控制

世界银行贷款项目对滇池流域重点工业污染源控制十分重视，把其列为贷款的重点。本文在对大量基础资料分析研究的基础上，通过对滇池流域重点工业污染源的深入研究，就其治理工艺、技术进行了深入的探讨，提出了一套完整而合适的控制方案，通过实施本项目，可以在相当程度上控制住排入滇池的工业污染物，从而为改善滇池水质作出巨大的贡献。     

试论海南岛经济开发战略构想

海南岛是我国最大的热带宝岛,自然资源丰富,天时地利优势突出,经济开发潜力大,在我国国民经济建设中具有特殊的战略地位。海南岛地处我国开放前哨,应充分利用世界经济中心转移亚太地区的有利形势,发展同外部世界的经济联系,进一步发挥内地的后盾和依托作用。明确经济开发的战略目标,研究对策和措施,加强宏观控制。严格控制人口增长,重视人才培养。设立省级体制。调整产业结构,加强基础建设。引进先进技术。改善交通和通讯。大力开发农业资源、矿产资源和能源。实行比特区更特殊的政策,海南岛的战略蓝图必将实现。     

Verification of carrier status for Becker muscular dystrophy from analysis of a blighted ovum

The polymerase chain reaction (PCR) was used on material from a blighted ovum to confirm indirectly the carrier status of a woman with a family history of Becker muscular dystrophy. Conventional testing including creatine kinase levels, muscle biopsy, and EMG had been inconclusive, and on the basis of one elevated creatine kinase level, the woman had been designated a possible carrier. Ultrasound examination at 10 weeks of pregnancy indicated a blighted ovum, from which DNA was subsequently extracted and subjected to PCR testing for determination of sex and genotypic status with respect to the known familial deletion of the dystrophin gene. The blighted ovum was found to have a Y chromosome and also to be deleted for at least exon 6 of the dystrophin gene, indirectly indicating that the mother most likely carried the family mutation for Becker muscular dystrophy.     

妨碍国有工业企业推行清洁生产的几个问题

分析不利于国有工业企业推行清洁生产的六方面问题：认识偏差，缺乏激励机制，缺乏足够的资金，技改中新技术含量低，缺乏人才和政府执行力度不够，结合实际情况初步探讨解决办法。     

DNA polymorphism and globin chain analysis in the prenatal diagnosis of β-thalassaemia major in Taiwan

Thirty-six pregnancies in 25 families at risk of β-thalassaemia major received prenatal diagnosis. Chorionic villus sampling or amniocentesis was done in 35 pregnancies to obtain fetal cells for DNA linkage study, for which Southern blotting and DNA hybridization were used to detect seven restriction fragment length polymorphisms (RFLPs) within the β-globin gene cluster: ϵ-HincII, ^Gγ-HindIII, ^Aγ-HindIII, Φβ-HincII, 3′Φβ-HincII, β-AvaII, and 3′β BarnHI. β-Thalassaemia major was diagnosed in seven and excluded in 22 pregnancies. In the remaining six cases, β-thalassaemia major could not be excluded. In these six pregnancies and another one with late booking, ultrasound-guided cordocentesis was performed at the 22nd to 27th week of gestation. Globin chain composition was determined with urea-acetic acid-Triton X-100-12 per cent polyacrylamide gel electrophoresis. β-Thalassaemia major was diagnosed in two fetuses and excluded in the other five. Eleven fetuses (in which β-thalassaemia major was excluded) have been delivered and are healthy at more than 5 months old DNA linkage analysis coupled with globin chain electrophoresis provides an effective way for prenatal diagnosis of β-thalassaemia major, although these methods are being replaced by more direct detection techniques using oligonucleotide probes.