水洗机废水的回收利用

介绍了淮北印染集团公司水洗机产生的废水经简单处理后,回收利用到部分设备和清洁卫生用水．节约了水资源,减少了污水排放量,取得了明显的经济效益和环境效益。     

膜技术在纺织印染工业清洁生产中的应用

介绍了近年来膜分离技术在纺织印染行业中的应用现状。膜技术的应用包括染料的脱盐、浓缩,印染废水的处理、回用,PVA、纤维油剂及羊毛脂的回收等方面。同时简要介绍了一些新型膜材料和其处理废水的效果。     

Decolorization of olive oil mill effluent by physical and chemical treatment prior to anaerobic digestion

Chemical and physical treatment of olive oil mill effluent (OOME) was performed using iron and lime as complexing agents, Duolite XAD 761 resin as phenolic adsorbent and hydrogen peroxide as oxidant. We have shown that 10 g dm⁻³ of ammonium iron(III) sulphate·12H₂O, or calcium dihydroxide were sufficient to precipitate more than 50% of the initial COD and remove 50% of the initial colour within a short contacting time. The aromatic adsorbent resin retained more than 50% of the colouring compounds (chromophores) corresponding to removal of more than 60% of the initial COD after treating three bed volumes of crude OOME. The efficiency depended on the volume treated. Hydrogen peroxide removed the substituents of the aromatic rings which resulted in a decrease in length of the colouring compounds in OOME. However, they were not completely degraded, leading to shorter wavelength absorption. This chemical treatment was efficient in colour removal but only 19% COD removal was possible. In all cases, simple aromatics were reduced, as determined by GPC analysis. The chemical and physical decolorization of OOME was efficient in reducing the toxic effect of recalcitrant compounds. The resultant OOME by each of these alternative treatments was readily degradable through anaerobic digestion. © 1998 Society of Chemical Industry     

Anaerobic treatment of textile effluents: A review

The treatment of textile waste water is commonly carried out using biological (mainly aerobic) and physico-chemical systems. However, anaerobic bioreactors can be used to at least partially treat these effluents and provide a number of significant advantages. The most attractive feature for the treatment of textile effluents is the decolourisation of many dyes under the reducing conditions present in an anaerobic reactor. Laboratory-scale results on this particular topic are here reviewed. A second major advantage of anaerobic processing is its ability to treat wastestreams with high organic loads such as the effluents from the desizing and scouring operations currently employed in the textile manufacturing industry. Reports on successful, full-scale and pilot-scale plants are also reviewed and some limitations are discussed. © 1998 Society of Chemical Industry     

混脂率影响混床出水水质的研究

通过模拟电厂凝结水处理运行的实验,研究不同混脂率下混床出水水质、运行周期的变化情况,并作出运行时间与电导率、混脂率与运行周期的关系图,对试验数据及相关曲线进行分析并得出结论．这对于进行现场运行失效判断和树脂分离效果的控制都有一定帮助．     

核电厂流出物排放氚的化学类别及监测方法

近年来,随着国外先进技术的引进,我国对氚监测技术进行了深入地分析和研究,使核电站氚排放监测设备、标准和方法得到了进一步完善.本文主要介绍了不同场合氚的取样和测定,以期能为相关从业人员提供参考.     

金川河水BOD_5与COD_(Cr)的关系

同步测定了金川河上不同河段河水的 CODCr(x)与 BOD5 (y) ,通过回归分析 ,发现这两种数值之间存在着线性关系 ,即 :y=0 .6 6 8x- 11.     

甘蔗糖厂酒精废液堆肥实现零排放的工程实践

报告了甘蔗糖厂的糖蜜酒精废液与蔗渣、滤泥、石灰渣、锅炉烟尘、炉渣、厂区的垃圾一道混合发酵 ,生产有机肥料 ,实现酒精废液零排放的设想、实验、中试生产 ,工程项目进行的一些情况。还报告了其有机肥料三年来的一些农业实验情况。     

UV+H2O2和UV+H2O2+Fe2+化学氧化处理CEH漂白废水研究

采用UV+H2O2和UV+H2O2+Fe2+二种高级化学氧化工艺处理硫酸盐苇浆CEH漂白废水,研究了氧化剂用量、Fe2+浓度、初始pH值、处理时间等因素与处理效果(以COD和色度为指标)的关系.研究表明,添加Fe2+可大大加速体系对有机污染物氧化降解,H2O2用量对COD和色度的去除影响显著,硫酸盐苇浆CEH漂白混合废水pH值呈较强的酸性,适合于采用UV+H2O2+Fe2+工艺氧化处理.     

天然改性高分子絮凝剂在污水处理中的应用

首先介绍了天然改性高分子絮凝剂的制备。然后,用它对活性污泥进行脱水处理,并考察了处理效果,研究发现在特性粘数为１２．５阳离子度为４０％,絮凝剂最佳用量为４０ｍｇ／Ｌ,接枝率为６０％,脱水效果最佳;在污水处理厂的带式压滤机上试验,出水和脱水污泥的相关指标达到城市污处理厂污水泥排放标准。