白腐菌处理前后苇浆CEH漂白废液中氯代酚类化合物的气相色谱─质谱分析

气相色谱─质谱分析检测表明：苇浆ＣＥＨ漂白的氯化段和碱处理段废液中均含有氯代酚和氯代愈创木酚，氯化段废液中的氯代酚相对含量高于氯代愈创木酚，碱处理段废液中两类氯代酚类化合物的相对含量接近。次氯酸盐漂白段废液中的氯代酚类化合物含量极少。经过载体吸附法固定的白腐菌处理之后，苇浆ＣＥＨ漂白混合废液中的氯代酚类化合物含量大为降低。     

造纸废水的混凝-水解-接触氧化处理技术

研究了以混凝、厌氧酸化、生物接触氧化一体化反应器处理含氯漂折护望洋兴叹，水力停留时间为15h时，整个系统CODCr、BOD5、AOX、毒性值去除率分别达88.1%、81%、98.4%、92%。混凝单元主要去除大分子氯代有机物；厌氧单元通过还原脱氯及酸性水解，使氯代有机物得到了基本的去除；好氧单元对CODCr有较高的去除率。红外光谱的分析结果表明：废水中既有木素又有纤维素和半纤维素，虽然漂白废水厌氧处理技术不如好氧处理，但厌氧、好氧联合处理可有效地提高处理效果。     

纸浆漂白废水中有机氯化物的排放与控制

本文概述了纸浆漂白废水的特性，以及影响其有机氯化物发生量的因素。     

废纸造纸废水处理技术的现状与发展

分析了废纸造纸废水处理技术的现状,展望了废纸造纸废水处理技术的发展前景.     

Catalysts based in cerium oxide for wet oxidation of acrylic acid in the prevention of environmental risks

Acrylic acid is a refractory compound for the non-catalytic wet oxidation (WO) process and can seriously damage the environment when released in industrial effluents. Oxidation of acrylic acid by catalytic wet oxidation (CWO) was studied in slurry conditions in a high-pressure batch reactor at 200 °C and 15 bar of oxygen partial pressure. Several solid cerium-based catalysts prepared in our laboratory were used (Ag/Ce, Co/Ce, Mn/Ce, CeO, MnO) and evaluated in terms of activity, selectivity and stability. Mn/Ce shows the higher activity in 2 h with 97.7% reduction of total organic carbon (TOC) followed by: MnO(95.5%)>Ag/Ce(85.0%)>Co/Ce(65.1%)>CeO(61.2%). Attempts were also carried out to analyze the influence of different Mn/Ce molar ratios. High percentages of Mn lead to practically total organic carbon concentration (TOC) abatements while low ratios lead to the formation of non-oxidizable compounds. Acrylic acid was readily degraded by all the catalysts pointing out the high importance of using a catalytic process. pH was an indicator of the reaction pathway and acetic acid was found as the major reaction intermediate compound; however it is completely oxidized after 2 h with exception for Co/Ce, CeO and MnO. Carbon adsorption and leaching of metals were poorly found for Mn/Ce indicating high stability. The catalyst microstructure after the reaction was analyzed and formation of whiskers of β-MnO₂ (or less probably MnOOH) were observed at the catalyst surface. Therefore, Mn/Ce revealed to be a promising catalyst for the treatment of effluents containing acrylic acid; nevertheless, its commercialization depends on further research.     

Solar photocatalytic degradation of real textile effluents by associated titanium dioxide and hydrogen peroxide

The present work investigated the photodegradation of real textile effluents by advanced oxidative process (AOP) using TiO₂/H₂O₂/sunlight system. The procedures were carried out at ambient conditions in March 2005. The results were evaluated by COD reduction concomitant to the increase in inorganic ion concentration (mineralization) and the analysis of the effluent characteristic spectral wavelengths: 228, 254, and 284 nm (simple aromatic compounds), 310 nm (conjugated aromatic compounds), and 390, 450, and 530 (color). As this study is not restricted to the decolorization process, it allows a more reliable evaluation of effluent mineralization. The results indicate that solar radiation is as efficient as or even more efficient than artificial radiation was in previous studies and that it also allows a reduction in effluent treatment operational costs.     

我国内陆核电发展过程中水资源安全相关问题

核电作为一种清洁能源,在我国的能源结构调整和节能减排中起着举足轻重的作用,但其潜在的放射性污染会对水资源安全构成一定的威胁。由于自然环境和社会因素的巨大差异,内陆核电的水资源安全问题更加凸显。在简要介绍了核电站运行原理及安全设计后,阐述了国外内陆核电的状况。从放射性液态流出物污染、冷却水污染和硼污染三方面分析了内陆核电站运行对水资源安全的影响以及我国的控制措施。从水资源管理思路、水资源论证深度、水资源应急响应机制三个方面论述了我国内陆核电水资源管理中亟待加强的方面。     

稻草末固定白腐真菌用于染料废水处理的研究

微电解－白腐菌生物降解－絮凝沉降联合处理系统对活性染料生产废水的处理效果明显,CODCr 去除率达90％以上,色度由12800降到80,出水清亮,达到排放标准。