硫酸铵-锌试剂-Tween-80萃取分离废镍镉电池金属

以废旧镍镉电池为原料,探索盐酸溶解废镍镉电池的溶解条件,并用ICP仪检测镍镉电池溶液中金属离子含量.研究了硫酸铵-锌试剂-Tween-80体系萃取分离金属离子Ni(Ⅱ),Cd(Ⅱ),Co(Ⅱ)的行为.实验表明:Ni(Ⅱ),Co(Ⅱ)在pH 6～9范围内,与锌试剂形成的螯合物可被Tween-80相完全萃取,而Cd(Ⅱ)基本不被萃取.进而实现了镍镉电池溶液中的Ni(Ⅱ),Co(Ⅱ)离子与Cd(Ⅱ)离子的分离.     

一种废电池资源化处理方法

该发明涉及一种废电池资源化处理方法，特别针对高污染、高毒性的废弃镍镉电池。将废弃镍镉电池破开处理，经添加助燃物使加热燃烧时炉内产生压力，后经密闭炉间接加热方式使废弃镉镍电池充分氧化，镉金属在600℃气化，将气化的镉金属急速冷凝还原成金属镉回收，而未还原成金属的氧化镉则另外回收，燃烧剩下的铁镍金属再以磁性分离的方式回收。／CN1536706，2004—10-13     

从工业废物中回收重金属

介绍了用氧化－铬沉法从特殊钢酸洗废液中回收镍、铁、钼及从镉镍电池废渣中回收镉，镍等金属金属制成多种化合物的原理，工艺流程及结果。     

废锂离子电池资源化方法的分析与建议

锂离子电池以其优异性能得到广泛应用,但其废弃量也在逐年增加。如果不进行有效处理,不仅给环境带来巨大压力,也会造成资源极大浪费。介绍了锂离子电池的主要构成及回收处理要点,通过国内外现状归纳分析,以及对于各种资源化方法的优劣和效率等进行比较后,研究一种有效可行的资源化方法,并对国内废锂离子电池资源化提出若干建议。     

专利资讯

一种从含有贵金属的废催化剂中回收贵金属的方法；废宝特瓶解包脱标机；以含镍废料再生为原料制造高活性镍饼工艺；失效锂离子电池中有价金属的回收方法；含有机物和玻璃纤维铜粉的无害化处理系统及处理工艺。     

废旧锂离子电池资源化研究现状

介绍了锂离子电池的基本结构、材料组成及工作原理,阐述了回收处理锂离子电池的必要性及迫切性,综述了当前国内外废旧锂离子电池的资源化研究现状及存在问题,并预测了今后废旧锂离子电池的资源化发展趋势.     

废硫酸及含硫酸废水的治理

总结了近年来国内外废硫酸和含硫酸废的水的各种治理与资源化方法,并把这些方法归纳为回收再用,综合利用和中和处理３大类,着重介绍了废硫酸的回收再用方法。     

废聚丙烯塑料的回收利用技术

介绍了废聚丙烯塑料能源化的方法(焚烧、无氧及有氧条件下的热分解)与资源化回收利用技术(简单再利用、改性再生利用),并对国内外相关方面的研究和应用情况进行了报道。     

浅谈综合性危废处置与资源化工厂废气的焚烧协同处置

综合性危废处置与资源化工厂在实现对外来危废无害化、资源化的同时,可协同处置工厂本身的废气.在协同处置废气时,评估不同类废气的特性、安全输送方式、风量平衡等,利用焚烧系统的热分解作用有效净化废气.协同处置能带来可观的经济效益.     

铸造水玻璃废砂作水泥混合材的试验研究

为了解决铸造企业水玻璃废砂大量排放而带来的堆场困难和环境污染的问题,拓宽水玻璃废砂资源化再利用范围,研究了利用水玻璃废砂作为混合材生产水泥的可行性.试验结果表明,当白砂(处于铸模内侧,经受过高温,溃散性差)或混合砂(铸模内、外侧砂同比例混合)掺量小于10%时,可生产42.5普通硅酸盐水泥,而且该水泥的其他各项性能指标均符合水泥的国家标准要求.     

Note From the Publisher and the Editor-in-Chief

Water, Air, &; Soil Pollution: Focus -     

落实工作任务 推进农业再生资源利用工作

农业再生资源是再生资源的一个特殊而重要的组成部分,开展农业再生资源回收利用是再生资源产业向新领域的拓展,是助农增收、为"三农"服务的有效途径,是事关新农村建设的重要课题。本刊根据2009年12月18日中再生协会农业再生资源利用专业委员会成立大会暨2009年海峡两岸农业再生资源综合利用研讨会上的相关资料,刊发一组领导讲话,以使读者了解和认识实施农业再生资源回收利用的现实背景和重大意义。     

Adapting the Speciation of the VOCs Emission Inventory in the Greater Athens Area

An adaptation procedure of a new emission inventory of theGreater Athens Area is attempted, based on a sensitivityanalysis on the treatment of the VOC emissions. Throughthis procedure the impact that a more detailed treatment ofthe VOCs emissions might have on the atmospheric chemistrysimulations, is examined. For this analysis three differentchemical mechanisms were applied for two differentlocations (urban and city plume) with different VOC andNO_x mixture characteristics. Finally, this studyrecommends new carbon fractions, reflecting the localconditions in Athens basin.     

Oil Spill Modeling towards the Close of the 20th Century: Overview of the State of the Art

The state-of-the-art in oil spill modeling is summarized, focusing primarily on the years from 1990 to the present. All models seek to describe the key physical and chemical processes that transport and weather the oil on and in the sea. Current insights into the mechanisms of these processes and the availability of algorithms for describing and predicting process rates are discussed. Advances are noted in the areas of advection, spreading, evaporation, dispersion, emulsification, and interactions with ice and shorelines. Knowledge of the relationship between oil properties, and oil weathering and fate, and the development of models for the evaluation of oil spill response strategies are summarized. Specific models are used as examples where appropriate. Future directions in these and other areas are indicated     

欧盟包装废物管理和总体产生特性分析

欧盟旱在1994年就颁布了包装和包装废物的指令，提出了包装废物管理的目标和管理内容，要求各成员国采取积极的经济和法律措施，建立自由流通的公平市场秩序。通过研究评估表明，包装和包装废物指令的实施产生了多方面的积极影响。统计数据表明，历年包装废物回收总量平稳增加，处置量平稳下降，单位GDP产值产生包装废物的系数基本保持稳定，但各国包装废物人均产生量存在较大差异。     

On the Methods for the Delimitation of Seasons

It is well known that air pollution is one of the major factors affecting human health and the activities in a town. Among the various air pollutants an interesting one, especially for sunny climates, is the reactive O₃. O₃ varies significantly through the year; it is therefore very important to know the onset and the duration of the warm period of the year since at that time O₃ concentrations increase significantly. In this work, an attempt was made to determine the onset of warm season of the year as well as its duration in various sites located in Northeastern Mediterranean. For this purpose, a fuzzy clustering method is used. The method was applied on the isobaric thickness between 1000 and 500 hPa for the period from 1974 to 1997. The results were compared to conventional methods based on synoptic classification and were found to be in good agreement.     

Comparative Thermodynamic Study on the Contribution of the Autocondensation and Copolymerization Reactions for the Tannins of the Subspecies of Acacia nilotica

Autocondensation and copolymerization reactions of the Acacia nilotica subspecies tomentosa (Ant) and the subspecies adansonii (Ana) tannins extracts solutions have been studied at several pH values by thermomechanical analyzer. Results of chemical analysis of these tannins revealed that the studied tannins, Ant and Ana contained high percentages of extractable tannins (54 and 57 %) for and polyphenolic materials (78 and 80 %) respectively. Different hardeners such as paraformaldehyde, Urea and pMDI were added at different ratios and their polycondensation reactions was studied and compared with their autocondensation ones. The aim was to evaluate the tannins suitability for the production of commercially and technically viable tannin adhesives with reduced Formaldehyde emission for wood products and to study the interference between the autocondensation and the copolymerization reaction. The obtained results of autocondensation reaction for both of the tannins studied showed that the best Young’s modulus values for Ant (3,500 and 2,750 MPa) and Ana (2,650 and 2,620 MPa) were obtained at pH 5 and 7. The Young’s modulus values obtained by the tannins Ant were higher than those achieved by Ana. This indicates that the Ant is more reactive than Ana. These results were also in line with results achieved by the gel time for both of the tannins. Gel time results indicate that the reactivity of both tannins increased towards alkalinity with Ana being more reactive at alkaline pH. Addition of 8 % of paraformaldehyde was adversely affecting the autocondensation reactions, as the best Young’s modulus values were achieved at pH 4 for Ant tannins. As for Ana the higher Young’s modulus values (2,000 and 2,310 MPa) were achieved at pH 5 and 7. This indicates that autocondensation reaction was contributed to the final network of the copolymerization reaction. When smaller ratio of paraformaldehyde and Urea (5 %) was added to Ant tannins it favors the autocondensation reaction and the best Young’s modulus values were obtained at pH 5 and 7. Addition of pMDI (10–30 %) was found to decrease the temperature of copolymerization and the obtained Young’s modulus values by Ant were lower than those obtained by autocodensation reaction. Best Young’ modulus values were obtained by Ant at pH 5 and 7. Ana gave the best Young’s modulus values at pH 4 and 5 indicating that the autocondensation appears to depress the copolymerization reactions. The obtained results by both reactions were very important from technical and economical point of view as they concluded that it is very possible to produce adhesives system with zero emission depending on the tannins autocondensation reaction and pH values. Reduction of formaldehyde emission was also possible upon addition of smaller amount of paraformaldehyde and Urea.     

日本包装废物管理体系和产生特性分析

介绍了日本的资源循环法律体系和促进容器包装分类回收和再商品化的法律和有关方针，介绍了日本容器和包装的管理体制和主要措施，以及各类包装废物回收利用状况和特点。