银铜复合废料回收工艺研究

针对银铜复合废料回收的必要性，及国内外对银铜复合废料分离回收现状，实验研究了一套完整的银铜分离回收工艺，该工艺具有高效、简便、低成本、少污染等优点，铜回收率达99．7％，银回收率大于99．9％，回收铜、银的纯度高于99．9％。     

Enhanced photoelectrocatalytic decomplexation of Ni-EDTA and simultaneous recovery of metallic nickel via TiO2/Ni-Sb-SnO2 bifunctional photoanode and activated carbon fiber cathode

In order to enhance Ni-EDTA decomplexation and Ni recovery via photoelectrocatalytic (PEC) process, TiO₂/Ni-Sb-SnO₂ bifunctional electrode was fabricated as the photoanode and activated carbon fiber (ACF) was introduced as the cathode. At a cell voltage of 3.5 V and initial solution pH of 6.3, the TiO₂/Ni-Sb-SnO₂ bifunctional photoanode exhibited a synergetic effect on the decomplexation of Ni-EDTA with the pseudo-first-order rate constant of 0.01068 min⁻¹ with 180 min by using stainless steel (SS) cathode, which was 1.5 and 2.4 times higher than that of TiO₂ photoanode and Ni-Sb-SnO₂ anode, respectively. Moreover, both the efficiencies of Ni-EDTA decomplexation and Ni recovery were improved to 98% from 86% and 73% from 41% after replacing SS cathode with ACF cathode, respectively. Influencing factors on Ni-EDTA decomplexation and Ni recovery were investigated and the efficiencies were favored at acidic condition, higher cell voltage and lower initial Ni-EDTA concentration. Ni-EDTA was mainly decomposed via ·OH radicals which generated via the interaction of O₃, H₂O₂, and UV irradiation in the contrasted PEC system. Then, the liberated Ni²⁺ ions which liberated from Ni-EDTA decomplexation were eventually reduced to metallic Ni on the ACF cathode surface. Finally, the stability of the constructed PEC system on Ni-EDTA decomplexation and Ni recovery was exhibited.     

含铵,钠和铁盐废水处理的方法

介绍了国内外处理不同浓度含铵、钠和铁盐废水的实用技术与动态。力求为废水处理和资源回收提供参考。     

聚丙烯酰胺(PAM)在水厂排泥水处理中的应用研究

介绍了水厂排泥水处理浓缩污泥投加ＰＡＭ的重要性、ＰＡＭ絮凝机理，实验室ＰＡＭ筛选及ＰＡＭ在水厂排泥水处理中应用效果。     

我国胭脂鱼资源现状及其资源恢复途径的探讨

胭脂鱼为我国特有鱼类 ,已知仅分布于长江和闽江。目前胭脂鱼在长江水系中的资源量明显减少 ,数量已较国家一类水生野生保护动物中华鲟和达氏鲟为少 ;闽江胭脂鱼种群几近绝迹。造成胭脂鱼资源下降的原因主要与其自身繁殖力低 ,发育时间长 ,以及过度捕捞和水域污染等因素有关。人工放流是恢复长江胭脂鱼资源的重要手段。     

Post-disaster recovery dilemmas: challenges in balancing short-term and long-term needs for vulnerability reduction

Following disasters, governments often clamor to quickly reduce risk, rebuild communities and restore permanence. The pressure to urgently address complex, difficult decisions can result in reactive policies that may increase long-term vulnerability of affected populations. Sri Lanka in the aftermath of the 26 December 2004 tsunami represents such an example: a hastily designed coastal buffer zone policy has incited massive relocation of affected populations and resulted in social, economic and environmental problems that threaten the well-being of poor coastal communities. We review the impacts of this policy from its inception, days after the tsunami hit the island, until its revision, approximately 10 months following the disaster. We then apply a framework to conceptualize the components of vulnerability within Sri Lanka's coastal, human–environment system and to identify where post-disaster policies should focus to reduce vulnerability of coastal populations more effectively. From this analysis, it is apparent that the buffer zone policy gave disproportionate attention to reducing exposure to future tsunamis and, subsequently, did not address the critical social, economic and institutional factors that influenced sensitivity to the hazard. Post-disaster policies aimed at sustainable re-development should be informed by an analysis of the components of vulnerability that comprise a system and how these can be most effectively influenced during the separate short-term and long-term phases of rebuilding.     

稠油采油污水回用于热采锅炉用水的研究

利用曝气除油、引气气浮、化学除硅、树脂吸附和软化的方法对稠油污水进行处理，出水完全达到热采锅炉用水指标，可用于热采锅炉给水，为解决污水排污染环境和热采生产供水不足的矛盾提供了可行的技术工艺。     

活性艳红X-3B染料清洁生产工艺研究

提出了活性艳红X -3B染料生产中盐析滤液减压蒸发回收工业盐循环利用的清洁生产工艺 ,并通过试验 ,得出盐析滤液温度 80℃、真空度 0 .0 8MPa、冷凝器出水温度 40℃为最佳操作条件组合     

阴离子交换萃取体系对废旧电子线路板中铜的提取

主要研究了三异辛胺(N235)的阴离子交换萃取体系对废旧电子线路板中铜的提取。萃取体系的组成为N235(40％)-异辛醇(20％)-煤油(40％)，在HCI介质中对铜进行萃取，在实际样品的应用中，有较为满意的结果。得到了99．06％的硫酸铜晶体。     

以次磷酸钠工业生产废渣为原料回收亚磷酸

讨论了以次磷酸钠工业生产废渣为原料，回收制得亚磷酸钠，再采用电渗析法制备亚磷酸。详细研究了此方法的相关工艺和最佳条件，在最佳条件下，可回收相当于废渣总质量35％的有用产品，工厂将收到明显的经济效益和环境效益。