11家再生资源行业协会获“全国供销合作社优秀行业协会”称号

在2009年4月2日召开的全国供销合作社行业协会工作会议上，隆重表彰了54家荣获“全国供销合作社优秀行业协会”称号的单位，其中再生资源行业有11家协会获得此荣誉称号，分别是天津市再生资源行业协会、上海废旧物资回收行业协会、江苏省再生资源回收利用协会、江西省再生资源回收利用协会、河南省再生资源行业协会、广西再生资源回收利用协会、海南省再生资源行业协会、重庆市再生资源行业协会、沈阳市再生资源协会、宁波市再生资源行业协会和广州再生资源行业协会。     

建设有中国特色的再生资源回收利用体系

分析了我国再生资源回收利用工作的现状，借鉴发达国家的先进经验，提出建设我国再生资源回收利用体系的基本框架，以及发展我国再生资源产业的政策建议。指出建设具有中国特色的再生资源回收利用体系是推动再生资源产业成为新的经济增长点的前提和保障。     

石家庄市农村再生资源回收体系建设的现状、存在问题及对策

石家庄市是再生资源回收体系建设试点城市，再生资源回收利用事业扎实推进，成绩显著，但石家庄市广大农村地区再生资源回收利用网络建设事业发展缓滞。分析了石家庄市农村再生资源回收体系建设的现状和存在的问题，对如何有效地推进农村再生资源回收利用事业发展，更好地促进农村生态文明和社会主义新农村建设提出建议和对策。     

《再生资源与循环经济》稿约

《再生资源与循环经济》是由中华全国供销合作总社主管，中华全国供销合作总社天津再生资源研究所、中国再生资源回收利用协会主办，面向国内夕卜公开发行的综合性技术刊物，主要宣传国家有关再生资源回收利用和循环经济的方针、政策，着重介绍国内外再生资源回收、加工利用、垃圾资源化处理、环保产业、     

中再生协会农民回收工培训活动顺利开展

2009年9月17日，中国再生资源回收利用协会会同北京华京源再生资源回收市场，在北京市丰台区举办了农民回收工培训班。培训班邀请了北京丰台区负责再生资源管理的有关同志和天津再生资源研究所的专家、老师，就再生资源回收挑选过程中的相关法规、专业知识进行了生动、系统地讲解。     

立足资源属性 构建再生资源回收利用标准体系框架

通过对再生资源及其回收利用范围、再生资源回收利用标准体系范围的界定,提出了再生资源回收利用标准体系的基本原则,对再生资源回收利用标准体系的分类方法进行了分析研究并提出建议,在此基础上,提出再生资源回收利用标准体系的总体框架,绘制了总体框架图,为再生资源回收利用标准体系建设奠定了基础。     

再生资源回收体系建设巡礼——走进武汉

2008年3月武汉市被商务部列为全国再生资源回收体系建设26个试点城市之一；2008年又被国务院批准成为“两型社会”改革试验区。党和国家对再生资源回收利用工作的高度关注为武汉市再生资源回收行业的规范管理和加速发展提供了前所未有的机遇和动力。为贯彻落实《武汉市再生资源回收利用体系建设实施方案》，促进武汉市循环经济发展和“两型社会”建设，武汉市结合自身的具体情况，在再生资源回收体系建设方面开展了以下工作。     

再生资源进口与国际大循环经济——访环境保护部科技委员、原国家环保局副局长王扬祖

在《国务院关于加快发展循环经济的若干意见》中，明确提出要“大力开展资源综合利用，最大程度实现废物资源化和再生资源回收利用”，并将再生资源行业及再生资源回收利用体系建设作为发展循环经济的重点工作和重点环节。在2008年6月26日召开的《中国再生资源回收利用协会再生资源国际合作专业委员会筹备工作暨国际合作研讨会》上，     

试论再生资源回收利用行业标准发展之困

简要阐述了再生资源回收利用概念的演变、内涵,通过对再生资源回收利用行业发展现状、再生资源回收利用行业标准发展现状以及影响再生资源回收利用标准发展原因等方面的分析,提出再生资源回收利用标准科学分类、标准化技术委员会建设、标准制定、推广与应用、标准化人才队伍建设等的基本思路。     

“城乡再生资源回收利用网络建设”专题征稿

再生资源回收利用网络的建设和完善是促进我国再生资源产业发展的重要途径。目前我国再生资源回收网络建设仍较为滞后，尤其在广大农村地区，资源往往得不到有效回收利用，而大量废弃又造成了环境面源污染。如何将城市再生资源回收利用网络建设的经验引入农村，形成城乡互动、循环高效的回收利用网络，拉动农村资源利用和环境保护水平的提升，值得深入思考。     

Pyrolysis of virgin and waste polypropylene and its mixtures with waste polyethylene and polystyrene

A comparison of waste and virgin polypropylene (PP) plastics under slow pyrolysis conditions is presented. Moreover, mixtures of waste PP with wastes of polyethylene (PE) and polystyrene (PS) were pyrolyzed under the same operating conditions. Not only the impact of waste on degradation products but also impacts of the variations in the mixing ratio were investigated. The thermogravimetric weight loss curves and their derivatives of virgin and waste PP showed differences due to the impurities which are dirt and food residues. The liquid yield distribution concerning the aliphatic, mono-aromatic and poly-aromatic compounds varies as the ratio of PP waste increases in the waste plastic mixtures. In addition to this, the alkene/alkane ratio of gas products shows variations depending on the mixing ratio of wastes.     

北京市居民衣服消费处置及对其回收利用认识调查与分析

首先对北京市居民每年购买新衣服的数量、支出、穿着时间、淘汰原因,以及闲置衣服的处理方式、数量等进行了调查与分析,然后对北京市居民对旧衣物回收利用的认识、回收形式及其处理方式,对旧衣物如何处理回收、再利用的担忧,对希望旧衣物回收箱摆放的场所等进行了调查与分析。其研究结果对废旧纺织品回收体系建设、制度及政策制定具有一定的参考价值。     

Photo-oxidation and Photo-toxicity of Crude and Refined Oils

The fate and effects of an oil spill are effected by solar radiation through the action of photo-oxidation and photo-toxicity. Photo-oxidation, an important process in the weathering of oil, produces a variety of oxidized compounds, including aliphatic and aromatic ketones, aldehydes, carboxylic acids, fatty acids, esters, epoxides, sulfoxides, sulfones, phenols, anhydrides, quinones and aliphatic and aromatic alcohols. Some of these compounds contribute to the marine biota toxicity observed after an oil spill. Photo-toxicity occurs when uptake of certain petroleum compounds, e.g. certain polycyclic aromatic hydrocarbons and benzothiophenes, is followed by solar exposure which results in much greater toxicity than after dark uptake. The mechanism of PAH photo-toxicity includes absorbance of solar radiation by the PAH which produces a free radical and this free radical in turn reacts with oxygen to produce reactive oxygen species that can damage DNA and other cellular macromolecules. While most studies on photo-toxicity have been carried out in the laboratory, there are studies showing that water from an oil spill is photo-toxic to bivalve embryos for at least a few days after the spill. Other studies have found that oil contaminated sediments are photo-toxic to several marine invertebrates. More studies are required to determine if marine fauna at an oil spill site are effected by the action of photo-toxicity and photo-oxidation.     

Synthesis and Characterization of Polyols and Polyurethane Foams from PET Waste and Crude Glycerol

In this study, polyethylene terephthalate (PET) waste from post-consumer soft-drink bottles and crude glycerol from the biodiesel industry were used for the preparation of polyols and polyurethane foams. PET waste was firstly depolymerized by the glycolysis of diethylene glycol. The glycolyzed PET oligomers were then reacted with crude glycerol at different weight ratios to produce polyols via a series of reactions, such as esterification, transesterification, condensation, and polycondensation. The polyols were characterized by titration, viscometry, gel permeation chromatography (GPC), and differential scanning calorimetry. Subsequently, polyurethane (PU) foams were made via the reaction between the produced polyols and polymeric methylene-4,4′-diphenyl diisocyanate and were characterized by mechanical testing, scanning electron microscopy, and thermogravimetric analysis. Polyols from crude glycerol and their PU foams were also prepared to compare properties with those of polyols and PU foams from PET and crude glycerol. The influence of aromatic segments existing in glycolyzed PET and glycerol content on the properties of the polyols and PU foams was investigated. It was found that aromatic segments of polyols from glycolyzed PET helped increase their molecular weights and improve thermal stability of PU foams, while high glycerol content in polyols increased the hydroxyl number of polyols and the density and compressive strength of PU foams.     

电厂建设运行中的水土流失预测与水土保持设计

在燃煤电厂建设运行的同时,将引起一系列的水土流失问题.以四川国电金堂电厂二期扩建工程为例,简要说明项目区水土流失预测的内容和方法,并在其基础上对可能产生的水土流失和危害进行了分析,同时介绍了建设期和运行期采取的综合防治措施,为类似工程的水土保持提供借鉴.     

磷对环境的污染及防治对策

我国水体富营养化严重，其主要控制因子是磷。在分析磷污染的污染状况，污染源的基础上，介绍了防治对策，采用低磷循环冷却水处理剂，减少磷排放，是防止工业磷污染的有效方法。     

Novel and innovative pyrolysis and gasification technologies for energy efficient and environmentally sound MSW disposal

Within the context of European Union (EU) energy policy and sustainibility in waste management, recent EU regulations demand energy efficient and environmentally sound disposal methods of Municipal Solid Waste (MSW). Currently, landfill with its many drawbacks is the preferred option in the EU and many other industrialised countries. Within the waste management hierarchy thermal disposal especially incineration is a viable and proven alternative. But, the dominating method, mass-burn grate incineration has drawbacks as well particularly hazardous emissions and harmful process residues. In recent years, pyrolysis and gasification technologies have emerged to address these issues and improve the energy output. To keep the many players in the field comprehensively informed and up-to-date, novel and innovative technology approaches emphasising European developments are reviewed.     

微生物絮凝剂及其在水处理中的应用

近年来对微生物絮凝剂的研究不断深入，新的高效菌种不断被发现。简要介绍了微生物絮凝剂的絮凝机理、分关、絮凝效果及影响因素，重点介绍了新型微生物絮凝剂在水处理中的应用。     

Laboratory Experiments and Estimation of Cumulative Infiltration and Sorptivity

Soil water cumulative infiltration affects the environment by controlling the irrigation rate and consequently the water and pollutants movement through the ground. In order to study the cumulative infiltration in a sandy soil sample, experiments were performed in the laboratory. The sample was placed uniformly in a transparent column with an inner diameter of 6 cm. A constant head boundary condition of a 2 mm height was applied on the surface of the sample and the cumulative volume of the incoming water was measured. Soil moisture at four locations of the column was measured, by using the TDR method in order to obtain the moisture profiles. By comparing the values of the infiltrated water volumes with those calculated by the integration of the moisture profiles, a good agreement was found out. Also the Parlange theoretical model fitted very well with the infiltration experimental points.