清洁生产产生经济效益

清洁生产产生经济效益ＣＬＥＡＮＥＲＰＲＯＤＵＣＴＩＯＮＭＡＫＥＳＭＯＮＥＹ￥／／ＧＯＩＮＧＧＲＥＥＮＹＩＥＬＤＳＰＲＯＦＩＴＳＦＯＲＢＵＳＩＮＥＳＳＩＮＴＨＥＵＮＩＴＥＤＳＴＡＴＥＳＳＵＳＡＮＰＯＬＬＡＣＫｒｅｐｏｒｔｓｏｎｔｈｅｍｏｎｅｙｔｈａｔＳ...     

经济手段对环境保护的作用

经济手段对环境保护的作用王奇,李庆伦（沈阳市环境保护投资公司沈阳１１０００３）（东北大学表面所）ＩＭＰＲＯＶＩＮＧＴＨＥＴＲＥＡＴＭＥＮＴＥＦＦＣＴＯＦＷＡＳＴＥＷＡＴＥＲＣＯＮＴＡＩＮＩＮＧＬＥＡＤＡＮＤＡＣＩＤＢＹＳＣＩＥＮＴＩＦＩＣＭＡＮＡＧＥ...     

THE CENTRE FOR ENVIRONMENTAL STUDIES THE CHINESE UNIVERSITY OF HONG KONG

ＴＨＥＣＥＮＴＲＥＦＯＲＥＮＶＩＲＯＮＭＥＮＴＡＬＳＴＵＤＩＥＳＴＨＥＣＨＩＮＥＳＥＵＮＩＶＥＲＳＩＴＹＯＦＨＯＮＧＫＯＮＧ￥／／ＯＢＪＥＣＴＩＶＥＳＯｖｅｒｔｈｅｙｅａｒｓ．ｐｏｐｕｌａｔｉｏｎｇｒｏｗｔｈａｎｄｉｎｄｕｓｔｒｉａｌｄｅｖｅｌｏｐｍ...     

多功能射流除尘器在燃煤锅炉上的应用

多功能射流除尘器在燃煤锅炉上的应用陈光明李东明后德强袁晓春唐雪婧李晓东（冶金工业部安全环保研究院，武汉４３００８１）ＡＰＰＬＩＣＡＴＩＯＮＯＦＭＵＬＴＩＰＬＥＦＵＮＣＴＩＯＮＡＬＦＬＵＩＤＩＣＤＥＤＵＳＴＥＲＩＮＤＵＳＴＲＥＭＯＶＡＬＦＲＯＭＣＯＡＬ...     

THE CENTRE FOR ENVIRONMENTAL STUDIES THE CHINESE UNIVERSITY OF HONG KONG

ＴＨＥＣＥＮＴＲＥＦＯＲＥＮＶＩＲＯＮＭＥＮＴＡＬＳＴＵＤＩＥＳＴＨＥＣＨＩＮＥＳＥＵＮＩＶＥＲＳＩＴＹＯＦＨＯＮＧＫＯＮＧ￥／／ＯＢＪＥＣＴＩＶＥＳＯｖｅｒｔｈｅｙｅａｒｓ，ｐｏｐｕｌａｔｉｏｎｇｒｏｗｔｈａｎｄｉｎｄｕｓｔｒｉａｌｄｅｖｅｌｏｐｍ...     

剩余混凝土的技术处理与生态环境

剩余混凝土的技术处理与生态环境徐洛屹（国家建材局技术情报研究所，北京１０００２４）ＴＥＣＨＮＩＣＡＬＴＲＥＡＴＭＥＮＴＯＦＳＵＲＰＬＵＳＣＯＮＣＲＥＴＥＡＮＤＥＣＯＬＯＧＩＣＡＬＥＮＶＩＲＯＮＭＥＮＴＸｕＬｕｏｙｉ（ＴｅｃｈｎｉｃａｌＩｎｆｏｒｍａｔ...     

丹麦Haldor Topsoe A／S环保技术简介

丹麦ＨａｌｄｏｒＴｏｐｓｏｅＡ／Ｓ环保技术简介ＩＮＴＲＯＤＵＣＴＩＯＮＯＦＨＡＬＤＯＲＴＯＰＳＯＥＡ／ＳＴＥＣＨＮＯＬＯＧＹＩＮＤＥＮＭＡＲＫ￥／／ＨａｌｄｏｒＴｏｐｓｏｅＡ＄公司成立于１９４０年，主要从事催化剂和化工工艺的开发。在化肥、重化工、石油...     

城市地下空间资源的类型与特点

城市地下空间资源的类型与特点李相然（烟台大学土木工程系山东烟台２６４００５）关键词地下空间，地下空间资源，地下空间资源类型，地下空间资源特点ＴＹＰＥＳＡＮＤＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＵＲＢＡＮＵＮＤＥＲＧＲＯＵＮＤＳＰＡＣＥＲＥＳＯＵＲ...     

沈阳市铁西区大气环境质量状况及变化趋势的分析

沈阳市铁西区大气环境质量状况及变化趋势的分析许志霞，王天玉，姜海英，于季红，许志环（沈阳市铁西区环保局）（水新一沈阳化工厂有限公司）ＴＨＥＡＩＲＱＵＡＬＩＴＹＳＴＡＴＵＡＮＤＴＨＥＣＨＡＮＧＥＴＲＥＮＤＡＮＡＬＹＳＩＳＩＮＴＩＥＸＩＤＩＳＴＲＩＣＴＳ...     

一种新型海上溢油凝油剂的研制

一种新型海上溢油凝油剂的研制曾德芳（武汉交通科技大学轮机学院，湖北４３００６３）ＰＲＥＰＡＲＡＴＩＯＮＯＦＡＮＯＶＥＬＣＯＮＤＥＳＩＮＧＯＩＬＲＥＡＧＥＮＴＯＦＴＨＥＯＶＥＲＦＬＯＷＥＤＯＩＬＯＮＴＨＥＳＥＡＺｅｎｇＤｅｆａｎｇ（ＣｏｌｅｇｅｏｆＭａ...     

萃取法预处理含α-氯代乙酰丁内酯制药废水的研究

在萃取实验中选择二氯甲烷作为萃取剂,考察了萃取振荡时间、萃取次数、油水比、pH值、萃取温度等因素对CODCr去除率的影响,获得最佳的萃取效果。结果表明:萃取出水CODCr为30420mg/L,去除率为49.3%。出水的BOD5/CODCr的比值达到0.34,符合生化处理条件。在萃取剂的回用中选择洗料—蒸馏方法回收,实验结果表明回收的二氯甲烷对废水进行萃取处理,能够达到良好的处理效果。     

土壤中胡敏酸提取方法的优化

以国际腐殖质协会(IHSS)推荐的胡敏酸提取方法为基础,以去有机质土壤中添加胡敏酸所配制的土壤为研究对象,引入超声作为胡敏酸提取的辅助条件,采用批次试验优化了土壤中胡敏酸的提取方法。结果表明,基于胡敏酸提取回收率和精密度,在室温下获得的优化提取方法为:液土比为8:1、提取次数为3次、Na OH溶液浓度为0.05 mol/L、超声功率为120 W、超声时间为30 min;在此优化条件下,胡敏酸的回收率为94.73%±1.50%,显著大于IHSS推荐方法的回收率64.76%±0.28%,变异系数CV为1.59%、小于10%。相对于IHSS提取法,此优化提取法具有胡敏酸提取回收率高、资源节约、胡敏酸变性小、提取时间短等优点。     

萃取法处理高浓度含酚废液的试验研究

本试验针对工厂排放的高浓度含酚废液（浓度１００００ｍｇ／Ｌ）利用化学萃取法进行处理，对常用的萃取剂进行了筛选试验，并研究了萃取剂含量、油水比、萃取时间等对萃取的影响．     

Organic matter and pH affect the analysis efficiency of P-NMR

Solution ³¹P nuclear magnetic resonance spectroscopy (³¹P-NMR) is a useful method to analyze organic phosphorus (Po), but a general procedure for the analysis method is lacking. The authors used solution ³¹P-NMR, which was found to be an effective method for analysis of Po in Haihe River sediment, to analyze the Po in the surface sediment in Eastern China at the regional scale, and found that the NaOH-ethylenediaminetetraacetic acid (EDTA) extraction rate was affected by environmental factors. At the regional scale, the extraction rate showed a positive relationship with loss on ignition, when the extraction rate was lower than 60%. The extraction rate had no relationship with the loss on ignition when the extraction rate was higher than 60%. The extraction rate showed a negative relationship with pH, which means that the extraction rate was higher in acidic sediment and lower in alkaline sediment. The ratio of TC/TN (the ratio of total carbon to total nitrogen) was considered to represent the origin of organic matter in the sediment. The extraction rate was high when the TC/TN ratio was lower than 20, meanwhile the extraction rate decreased as the TC/TN ratio increased. The results show that the origin of organic matter in sediment significantly affects the NaOH-EDTA extraction rate. This study will give theoretical support for building an effective and general solution ³¹P-NMR analysis method.     

用萃取法处理含苯胺废水的研究

本文介绍了以甲苯做萃取剂萃取硫化橡胶促进剂生产废水中苯胺类物质的方法,确定了萃取级数、萃取剂配比 和萃取时间等工艺参数。经过萃取,废水中的苯胺类物质与化学需氧量的去除率分别达95％和88％以上,萃取后的废水 可以进行生化处理。     

颗粒物质金属形态逐级提取技术问题的探讨

本文综述了国内外对颗粒物质中金属形态逐级提取测定技术方面的研究情况，重点阐述了颗粒物质金属形态分离方法，并对各相态的浸取技术和金属总量提取方法进行了讨论．从而为开展颗粒物质的金属化学形态的分析和研究，提出几点认识．     

环烷酸脱油工艺的实验研究

以锦州化工二厂生产的２＃环烷酸为原料，采用减压蒸馏──初馏分皂化萃取脱油工艺，可制得中性油含量分别低于１０％和５％的一级品环烷酸．该工艺具有流程简单、物料消耗少、产品收率高等优点．通过实验，初步探讨了蒸馏真空度、氢氧化钠浓度及用量、乙醇用量、萃取剂用量等工艺条件对脱油效果及产品质量的影响。     

萃取法处理DSD酸氧化工序废水的研究

本文对萃取法处理ＤＳＤ 酸氧化工序废水进行了研究，确定了废水Ｈ２ＳＯ４三辛胺（ＴＯＡ） － 煤油的萃取体系，并探讨了萃取相比、水相酸度、稀释比、萃取温度、反应搅拌时间、搅拌强度和反萃投碱浓度、反萃温度等一系列处理参数。实验结果表明，经萃取处理后ＤＳＤ 酸氧化工序废水中的ＣＯＤ 及色度去除率分别达９４ ．３ ％ 和９９ ．６ ％ 。     

高位阻叔胺(N_(3418))自盐酸溶液中萃取铂的研究

本工作以高位阻叔胺萃取剂N34 18自盐酸溶液中对铂 (Ⅳ )的萃取进行了研究。对萃取时间、水相的酸度、水相的 pH值、萃取剂的浓度、稀释剂等影响因素进行了较全面的分析。用NaOH作为反萃剂对反萃率进行了研究。应用连续变换法、饱和法 ,斜率法确定了萃合物的组成 ,萃合物的组成为 1 4。     

Critical review of EPS production, synthesis and composition for sludge flocculation

Extracellular polymeric substances(EPS) produced by microorganisms represent biological macromolecules with unfathomable potentials and they are required to be explored further for their potential application as a bioflocculant in various wastewater sludge treatment. Although several studies already exist on biosynthetic pathways of different classical biopolymers like alginate and xanthan, no dedicated studies are available for EPS in sludge. This review highlights the EPS composition, functionality, and biodegradability for its potential use as a carbon source for production of other metabolites. Furthermore, the effect of various extraction methods(physical and chemical) on compositional, structural, physical and functional properties of microbial EPS has been addressed. The vital knowledge of the effect of extraction method on various important attributes of EPS can help to choose the suitable extraction method depending upon the intended use of EPS. The possible use of different molecular biological techniques for enhanced production of desired EPS was summarized.