废水

The preparation of inorganic membrane and it' s application and progress in wastewater treatment were introduced in this paper .

本文综述了无机膜的制备和无机膜在废水处理中的应用及研究，并讨论了其以后的应用研究方向和发展前景。

Extracellular and intercellular polymeric substance play an important role in biological wastewater treatment.

胞外和胞内两种细胞聚合物均在废水的生物处理中起着重要作用。

Rare earth\ H\-2O\-2\ Oxidative coupling process\ Dye\|intermediator wastewater

稀土；双氧水；氧化耦合；染料中间体废水

The influence of various factors on the efficiency of separation on ammonia nitrogen was investigated, including the surfactant dosage, the value of pH in the external phase, the concentration of sulfuric acid in the internal phase, the ratio between the volume of oil phase and the volume of water phase and so on.

用ME表面活性剂制作的乳液萃取冶金废水中的氨氮，考察了表面活性剂用量、外相水pH值、膜内相硫酸浓度、油内比、乳水比等因素对氨氮去除率的影响。

This method has been applied to the determination of sulfite in waste water samples. The results are consistent with those obtained by iodometry.

该法用于废水中亚硫酸盐的测定，所得结果与碘量法测得的结果相符。

Chromic trioxide and chromium hemitrioxide are determined with iodometry, the coefficient of variation of chromic trioxide is 0.056%, and the recovery of marked compound is 99.82-99.83%; the coefficient of variation of chromium hemitrioxide is 1.45%,and the recovery of marked compound is 98.55-99.26%; iron is determined by complexometric titration, the coefficient of variation of iron is 1.73%, and the recovery of marked compound is 99.12-99.23%;sulfate is determined by complexometric titration, the coefficient of variation of sulphate is 0.16%, and the recovery of marked compound is

Analysis Of The Chromium Electroplating Wastewater By Oxidation-reduction And Complexometric Titration-化学工程与工艺-本文采用氧化还原滴定法与络合滴定法对镀六价铬的废水中铬酸酐，三氧化二铬，铁和硫酸根的含量进行了测定：铬酸酐和三氧化二铬用碘量法测定，铬酸酐的变异系数为0.056%，加标回收率为99.82-99.83%，三氧化二铬的变异系数为1.45%，加标回收率为98.55-99.26%；铁用络合滴定法测定，其变异系数为1.73%，加标回收率为99.12-99.23%；硫酸根用络合返滴定法测定，其变异系数为0.16%，加标回收率为

It consists of ten parallel cells containing a total of 914,000kg of iron filings, all purchased locally.(The iron lasts about two years before it has to be replaced.) Some 80% of the water treated is industrial discharge.

之后有开始了真正的试处理，分为十个平行组，共用去914，000千克本地采购的铁屑，（这批铁屑用了近两年后才被替换掉）其中80%处理的都是工业排放废水。

The experiments of treating dyeing wastewater have been finished using filtration with iron filings and Sequencing Batch Reactor method.

该工艺具有投资少、运行费用低、处理效果稳定等特点，尤其适合中小型印染厂的废水治

An iron filings microelectrolysis-coprecipitation process has been used to treat vanadium-containing wastewater.

采用铁屑微电解—共沉淀法处理含钒废水。

Degradation of indole by an indole degrading methanogenic consortium enriched from sewage sludge proceeded through a two step hydroxylation pathway yielding oxindole and isatin.

产甲烷条件下从废水污泥中驯化的细菌对吲哚的降解包括两步羰基化反应，生成中间产物氧化吲哚和靛红。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。