蒽醌染整废水的混凝沉淀-Fenton催化氧化处理

采用混凝沉淀-Fenton催化氧化组合工艺对蒽醌染整废水进行处理，研究了混凝剂和Fenton试剂投加量以及各种反应条件对处理效果的影响。试验结果表明，当pH值为6．2、A12（SO4）3投量为300mg／L、PAM投量为3mg／L、沉淀时间为30min时，混凝沉淀出水的COD为233～260mg／L，色度为15～20倍；后续处理采用Fenton试剂催化氧化，当FeSO4投量为200mg／L、H2O2投量为100mg／L、pH值为5．0、反应时间为30min时，出水色度≤10倍，BOD5≤10mg／L，COD≤50mg／L。     

微电解法处理三种红色染料废水的研究

以模拟染料废水为研究对象,用铁碳微电解法处理高色度的3种红色染料废水。分别考察了铁碳比、反应时间、氢氧化钙的投加量对原废水去除效果的影响;比较了微电解法与其他方法的去除效果,探索了微电解法处理染料废水的机理。实验结果表明,微电解法对染料废水有明显的去除效果,固定废水pH值为5.8左右,反应时间分别为25,30,20 min,铁碳比分别为1∶1.5,1.5∶1,2.5∶1,氢氧化钙投加量分别为0.02,0.06,0.05 g时,活性红的去除率为92.7%,直接红的去除率为91.8%,酸性红的去除率为98.9%。     

Study of Crystal Violet Hueing Dye Deposition on Fabrics During Home Laundry

The influence of hueing dye on the fabric b* value and CIE whiteness during home laundry was investigated using crystal violet dye to study the accumulation mechanism on fabric samples. Fabrics treated with the crystal violet dye had a lower b* value and a higher CIE whiteness. The dye accumulation was much higher on nylon or nylon/lycra blends than on cotton and polyester fabrics. The fabric surface charge and surface energy were also studied, and the dye-fiber interaction was investigated based on fiber and dye molecular structure. The study indicates: (1) the electrostatic adsorption is the main contributor to the deposition and accumulation of hueing dyes on fabrics; (2) fabric surface energy may play an important role in the dye-fiber interaction. The more hydrophobic the fiber surface, the less dye accumulates on the fabric during home laundry.     

罗伊斯液体还原染料

罗伊斯液体还原染料系采用美国RoycevatTM技术生产,具有优良的染色性能和环保性能。通过与传统粉体还原染料进行对比,并将液体还原染料实际应用于纯棉和涤棉织物长车轧染生产中。结果表明,液体还原染料使用简单,力分高,染料提升力好,染色效果与传统粉体染料相当;染深色时染料用量明显减少,生产成本降低;染液COD含量较粉体染料下降50%,降低了染厂污水处理负荷。     

基于核酸适配体调控噻菁染料聚集体构建铅离子检测方法

基于调控噻菁染料(Dye2)的超分子自组装性质及其与核酸适配体(T30695)特异性结合的能力,构建了Pb2+的特异性识别模块.结果表明,当体系中加入Pb2+时,T30695单链形成G-四链体,并将二聚体形式存在的噻菁染料诱导解聚为单体,引起422,445 nm处紫外吸收峰变化,仅需通过UV-vis光谱仪便可实现对Pb...     

珍珠染蓝色技术的研究

在普通实验室条件下,运用正交实验设计方法,研究珍珠染蓝色技术。详细介绍了染色工艺参数的选择与确定,经过分析和比较数据,得到其最佳的实验方案:溶剂(蒸馏水∶乙醇∶丙酮)比例为6∶3∶1,染料甲基蓝用量为1.0 g/10 ml,表面活性剂十二烷基硫酸钠用量为0.25 g/10 ml,染色温度为36°C,助渗剂碘化钾用量为1.0 g/10 ml。     

用原子力显微镜观察菁染料聚集体

对应用原子力显微镜观察菁染料聚集体的文献进行了评述 ,在此基础上采用原子力显微镜观察了 2个感绿增感染料的聚集体     

A new type counter electrode for dye-sensitized solar cells

A new type counter electrode for dye-sensitized solar cells (DSCs) was proposed which consists of substrate, aluminum film and platinum film. The new type counter electrode can obviously improve the photoelectric conversion efficiency of DSCs from 3.46% to 7.07% under the standard AM1.5 irradiation condition. Advantages and shortcomings of this new type counter electrode in terms of electrical properties, optical properties and anti-corrosive properties were analyzed. As a result, some improvements were proposed. Supported by the Key Foundation for Fundamental Research of Tianjin Municipal Science & Technology Commission in China ( Grant No. 06YFJZJC01700) and the National Basic Research Program of China (“973“ Project) (Grant Nos. 2006CB20260, 2006CB202603)     

Co3O4/4A分子筛活化PMS处理高盐AO7废水研究

采用浸渍-焙烧法制备Co₃O₄/4A分子筛复合催化剂,用于活化过一硫酸盐（PMS）处理高盐酸性橙7（AO7）废水。采用扫描电镜、X-射线衍射仪、红外光谱仪等对复合催化剂进行表征,同时考察其稳定性。考察复合催化剂活化PMS对AO7模拟废水的处理效果,结果表明,当Co₃O₄/4A分子筛投加量为0.2 g/L、PMS投加量为0.7 mmol/L、pH为9时,高盐（Na₂SO₄,10 g/L）废水中AO7浓度可在20 min内由15 mg/L左右降至接近0,去除率达99%以上,同时催化剂钴离子溶出量约为0.36 mg/L,低于《地表水环境质量标准》（GB3838-2002）中规定的1 000μg/L。     

一浴法染色新工艺的探讨

探讨了用分散／活性染料对涤／棉混纺织物进行一浴法染色的工艺条件，以及用载体法对涤／丝混纺织物进行一浴一步染色。实验表明，应用该工艺染色不仅染色效果好，色泽鲜艳，上染率高，牢度较好，而且节水、节能、省时，完全符合染整工艺的发展方向。