工信部：2014年将培育资源再生龙头企业提升行业节能环保水平

2014年1月8日,工业和信息化部节能与综合利用司副司长高东升说,2014年,工信部将着力提高再生资源回收利用行业技术标准,提高准入门槛,培育行业龙头企业,以应对我国再生资源行业存在的企业规模小、技术水平和资源能源利用效率不高等问题,最大限度地促进节能减排和资源高效和高值化利用。     

工信部节能司召开生产者责任延伸制度模式研讨会

为有效推动工业领域生产者责任延伸制度建立与实施，探索符合我国行业发展的生产者延伸责任的管理与运行模式，促进工业资源循环利用制度建设，2014年3月6日．工业和信息化部节能与综合利用司组织召开了工业领域生产者责任延伸制度模式研讨会。来自中国家电研究院、俐通集团、     

新疆天业循环经济产业链之废渣综合利用项目

介绍了新疆天业(集团)循环经济产业链中的废渣综合治理情况,重点论述了干法乙炔配套干法水泥工艺、粉煤灰蒸压制砖工艺和电石渣烟气脱硫工艺。这些废渣综合利用技术不仅解决了长期困扰电石法聚氯乙烯装置废渣处理问题,更为企业带来了较好的经济效益和环保效益,使新疆天业循环经济、节能减排工作得到更全面的发展,同时也为电石法聚氯乙烯循环经济模式的建立提供全方位的示范。     

2012年工业节能与综合利用工作要点

各省、自治区、直辖市及计划单列市、新疆生产建设兵团工业和信息化主管部门,有关行业协会、中央企业,相关单位： 为深入推进工业节能和综合利用工作,按照中央经济工作会议、全国工业和信息化工作会议和2011年全国工业系统节能减排电视电话会议精神,我部研究提出了《2012年工业节能与综合利用工作要点》。现印发你们,请结合本地区、本行业和本单位实际参照执行。     

双河联合站污水热能的回收利用

污水热能是一种可回收利用的清洁能源,弃之浪费,用之为宝。污水热能的回收利用,可节省能源(如煤、石油、电能等),有效降低CO2、NOx、SOx及粉尘等污染物的排放量,既节能又环保。据国外资料报道,日本利用此种能源与其他热能供给系统相比,大约可节约热能34％左右;污染物排放量可消     

工业和信息化部召开京津冀及周边地区工业资源综合利用产业协同发展行动计划启动会

<正>为贯彻落实《中共中央国务院关于加快推进生态文明建设的意见》、《京津冀协同发展规划纲要》,探索资源综合利用产业区域协同发展新模式,2015年7月24日,工业和信息化部在唐山市召开京津冀及周边地区工业资源综合利用产业协同发展行动计划启动会。工业和信息化部有关司局,北京、天津、河北、山西、内蒙古、山东等6省市工业和信息化主管部门相关负责同志,重点园区、企业和科研机构代表150余人参加了会议。工业和信息化部节能与综合利用司高云     

区域静脉产业发展路径及保障体系研究——以定西市为例

基于资源短缺和环境污染的现实,以节约资源与保护环境为目的的静脉产业发展具有重要意义。以定西市为案例,从再生资源回收体系、城乡生活垃圾综合利用体系、工业固体废弃物综合利用体系、农业废弃物综合利用体系4个方面阐述区域静脉产业发展路径,并为路径的优化建立政策保障、评价保障、技术保障、信息保障等保障体系,帮助政府、企业和公众等实现对区域静脉产业发展的系统认知,加快区域静脉产业发展。     

合同能源管理在火电企业应用策略分析

合同能源管理是一种基于市场运作的全新的节能机制,其能弥补能源用户节能技术改造资金的不足、转移节能项目实施的风险等,具备推广的条件。主要从火电企业经营压力日益增大引出话题,研究了火电企业常规的节能改造技术,并分析出节能改造特点,提出将合同能源管理模式应用到火电企业技术改造中去,并结合火电企业投产年限对合同能源管理模式的影响,构建出合同能源管理在火电企业应用中的投资模型,对火电企业节能投资有一定的指导作用。     

再生资源综合利用行业规范条件培训班在大连举行

<正>为宣贯再生资源综合利用行业规范条件,推动再生资源产业健康发展,工业和信息化部节能与综合利用司于2015年9月17—18日在大连举办了再生资源综合利用行业规范条件培训班。来自全国各省市工业和信息化主管部门、相关协会代表共60名学员参加了培训。本次培训邀请了财政部、中国社会科学院、同济大学有关专家、学者以及行业代表,讲授了生态文明建设与循环经济、国内外再生资源产业发展态势与政策、资源综合利用增值税政策、再生资源综合利用行业规范条件、典型企业案例等内容。本次培训还组织学员赴当地资源综合利用企业进行     

节能与综合利用司组织召开“十三五”工业资源综合利用发展思路座谈会

<正>2015年7月2日,节能与综合利用司在北京组织召开了"十三五"工业资源综合利用发展思路座谈会。尾矿联盟、中国物资再生协会、中国家用电器研究院等多家协会和科研机构专家以及部分行业内重点企业负责人参加会议并发言。会议在分析总结"十二五"期间行业发展态势基础上,重点围绕当前存在的主要问题和"十三五"工业资源综合利用发展思路进行了座谈交流。节能与综合利用司高云虎司长在讲话     

浅议碳排放与废钢铁的节能减排功效

二氧化碳是导致全球气候变暖、人类生存环境恶化的主要原因。简要介绍世界钢铁工业二氧化碳排放情况,针对我国钢铁工业碳排放的具体情况,提出发展我国废钢产业,提高废钢铁的供应能力,是我国钢铁工业摆脱危机,实现低碳发展、绿色发展的主要途径。     

资源循环科学与工程专业课程体系优化与教学内容创新实践的探索

针对资源循环科学与工程本科专业课程教学,以西安建筑科技大学该专业课程体系为案例,通过对毕业生和专业研讨会调研,分析了课程体系建设的现状和存在的问题。借鉴其他高校资源专业的课程体系和教学内容,通过梳理各门专业课程的教学内容和相互联系,构建了资源专业课程体系课程群,探索了课程体系优化的方法和增加创新实践环节的具体措施。     

Synthesis and identification of graft copolymers of wood pulp and styrene

Based on the graft copolymerization reactions of lignin and vinyl monomers, a series of graft copolymers of wood pulp and styrene (1-phenylethene) has been synthesized. The wood pulps used in this research are unbleached products produced by chemical, thermal, and mechanical pulping. All of them contain a high content of lignin (25–29 wt%). The grafting reaction is a free radical polymerization coinitiated by calcium chloride, hydrogen peroxide, and wood pulp in dimethylsulfoxide at 30°C. The effect of reaction temperature, reaction time, and the amount of the reactants on the conversion of monomer, yield of product, weight increase of pulp, and grafting efficiency of monomer has been studied. The grafted wood pulp was separated from homopolystyrene formed during the reaction by extraction of the reaction product with benzene in a Soxhlet apparatus for at least 48 h. The results show that after the reaction, the weight of all wood pulps was significantly increased and the weight increase of very high yield sodium bisulfite pulp (VHYS) was 333%. This proves that a part of the polymerized styrene was chemically bound to the wood pulp. The Fourier transform infrared (FTIR) spectra of the extracted products show absorbance peaks characteristic of both wood and polystyrene and, thus, provide strong proof of grafting. Grafting has completely changed the surface properties of the starting wood pulp from hydrophilic to hydrophobic, and under ordinary thermal compression conditions, thermoplastic composite objects of good uniformity can be made directly from reaction products which contain up to 52 wt% wood pulp.     

Fate and effect of linuron and metribuzin on the co-composting of green waste and sewage sludge

The fate and effect of the herbicides linuron and metribuzin on the co-composting of sewage sludge and green waste were addressed in this work. The experiments were conducted in metal cubic containers of 1.0 m³ volume simulating a windrow composting system. A mixture of sludge and green waste was prepared at a ratio of 1:5 v/v. The mixture was split in four equal parts and the two herbicides were added, using a pressure sprayer, as sole or mixed pollutant in each of the three mixtures. The forth mixture was composted without any addition of herbicide, to serve as control. Temperature, physicochemical characteristics, herbicide concentration, carbon dioxide emission, methane emission and microbiological parameters were measured either daily or every time the mixtures were turned, for a period of 80 days. Both herbicides’ concentration decreased significantly resulting in removal efficiencies of 99.1–99.7% and 95.8–96.0% for linuron and metribuzin, respectively. Incubation of microbiologically inactive mixtures at a temperature schedule following the spontaneous temperature evolution in the composters resulted in very little (1–11%) decomposition for both herbicides. Comparison of the variation of physicochemical parameters and microbial populations during composting indicated that both herbicides did not affect the composting process.     

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.     

我国废旧电子电器产品拆解技术、设备应用现状及改进建议

从我国废旧电子电器回收行业基本情况、专业技术人才情况、相关企业拆解技术设备情况等方面,阐述了我国废旧电子电器产品拆解技术、设备应用现状,并提出相关改进提升建议。     

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.     

硫磺回收装置扩能改造及效果分析

介绍了回收酸性气体生产硫磺的工艺原理与工艺流程,论述了影响硫磺回收装置生产能力的诸多因素与扩能改造的情况。扩能改造后,该装置的酸性气体处理量平均为976m^3／h,瞬时处理量可达1200m^3／h,硫磺的生产能力从4450t／a提高到7500t／a,生产能力提高了68．5％,装置总硫回收率达到93．5％。     

电子废弃物的再循环利用:企业、政府与公众的角色和责任

电子废弃物不仅种类繁多,而且成分复杂,含有多种有毒、有害物质,已成为固体废物中最大的重金属污染源.长期以来,由于对电子废弃物问题缺乏足够认识和有效管理,电子废弃物对人体健康及生活环境可能构成的危害常常被忽视.实现电子废弃物的再循环利用,关键是明确企业、政府和公众在电子产品设计、生产、消费、回收、处置和再利用整个过程中的相关责任.因此,解决电子废弃物的问题,首先要对相关行为主体的角色进行准确定位.     

TEMPO-Mediated Oxidation of Norway Spruce and Eucalyptus Pulps: Preparation and Characterization of Nanofibers and Nanofiber Dispersions

This study deals with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-mediated oxidation of cellulose. Softwood and hardwood pulp fibers were suspended in water and oxidized to various extents at pH 10 and 22 °C using sodium hypochlorite in the presence of TEMPO radical and sodium bromide. This reaction system is known to be the most efficient one for the introduction of both surface carboxyl and aldehyde groups. Important relationships between formation of these functional groups and the fibrillation yield, light transmittance of the water dispersions and degree of polymerization of the oxidized softwood and hardwood pulps were established in the present study. A birefringence test confirmed the presence of nanofibers which according to atomic force microscopy analyses had diameters in the 1.6–3.8 nm range.