查询词典 waste water

Using diesel and paraffin chloride as disperse phase, the hydrophobic polymeric flocculant as flocculating agent, adding wetting reversed agent and frother to disperse phase, mixing those materials, the flotation agent, which is used to disposal oily waste water effectively is obtained.

用合成出来的疏水性高分子絮凝剂与表面活性剂（包括润湿反转剂和起泡剂），以及0#柴油和氯化石蜡-52复配叶轮气浮用浮选剂。

GIM（1）; GIPM（1）; Discharge quantity of waste-Water from ten thousand yUan output value hotal amount control ; Nomonotony system ; Step longitude index Transforynation ; Medelling method ; Forecasting.

GIM（1）； GTPM（1）；万元产值废水排放量；总量控制；非单调系统；步长指数变换；建模方法；预测

But hexavalent chromium is primary pollutant of the environment, and is generally recognized as carcinogenic substance, and a large number of waste water containing chromium is raised in industry every year.

而六价铬则是环境的主要污染物，是公认的致癌物，工业上每年产生大量的含铬废水。

The recent advancement of the relevant study on hexavalent chromium pollution in electroplating waste water is reviewed.

Cr主要被吸附在固体物质上面而存在于沉积物中；Cr多溶于水中，而且是稳定的，只有在厌氧的情况下，才还原为Cr。

The hydrolyzation Process has been widely applied in industrial waste water treatment but comparably less used in urban sewage treatment .

以新会龙泉污水处理厂为实例，对水解工艺在城市污水处理中的应用和特点进行介绍

The basic task of sewage pipe net is to ingather and transport waste water to sewage managing equipment in due course, security and without any block.

污水管网的基本任务就是及时、安全、通畅地收集、输送污水到污水处理设施。

The results show that the optimal parameters of esterification are as follows: 4% of SO42-/ZrO2, molar ratio of methanol to litsea cubeba kernel oil 101, 68 ℃ of reaction temperature and 4 h of reaction time, the acid value decreases to 2.52 mg/g. Compared with the traditional acidic-catalyzed method, this method has the advantages of no acid proof equipment, easy to recycle catalyst and no acidic waste water emission. The optimal parameters of transesterification are as follows: 25 ℃ of reaction temperature, 0.5% of hexadecyl-trimethyl-ammonium bromide, 1% of NaOH, molar ratio of methanol to the oil 61 and 15 min of reaction time. The ester exchanging rate is 97.6%. This method adopts phase transfer catalyst and produces industry prospect, which has many advantages such as energy-saving and time-saving under room temperature.

研究结果表明，固体酸SO42-/ZrO2催化酯化反应的最佳条件为：油重4%的SO42-/ZrO2，醇油摩尔比为101，温度为68 ℃，反应时间为4 h，原油酸值降到2.52 mg/g；该法相对浓硫酸催化酯化法具有不需耐酸设备、催化剂易回收、无废水排放等优点；相转移催化酯交换反应的最佳条件为：温度为 25 ℃，0.5%的十六烷基三甲基溴化铵，油重1%的NaOH，醇油摩尔比为61，反应15 min，原油酯交换率达到97.6%；采用相转移催化技术，反应在常温下进行，大大减少了能耗，缩短了反应时间，具有的产业化前景。

The technology of calcium-removing in the production of high-purity manganese carbonate is studied in which the manganiferous waste water from the production of 1,4-dihydroxy benzene is as raw material.

研究了以对苯二酚生产中副产含锰废水为原料，生产高纯碳酸锰的除钙工艺。

In a word, with the manganiferous waste water produced from the manufacture of 1 ,4-dihydroxy benzene as raw material, preparation of high-purity manganese ~ carbonate is feasible in technicality, reasonable in process and considerable inAeconomic benefit.

总之，以对苯二酚生产中副产的含锰废水为原料，生产高纯度碳酸锰在技术上是可行的，工艺上是合理的，经济效益是可观的。

Preliminary experiment for organic waste water treatment illustrated that the COD removal efficiency for methanol,toluene and metanilic acid was 91.3%,89.28% and 84.53%,respectively.

在初步处理有机废水的实验中，甲醇、甲苯、间氨基苯磺酸COD的去除率分别达到91.3％、89.28%和84.53%。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。