查询词典 wastewater

Results showed that the use of micro-electrolysis technology could remove more than 90 % of chromaticity and more than 50 % of COD and greatly improved the biodegradability of pharmaceutical wastewater.

结果表明，使用微电解技术可消除90%以上，超过50色度成大大改善了生化需氧量和制药废水。

The dyes wastewater of magenta fuchsine、acid chrome ming blue RRN and acid chrome fast red S-80 are all characterized by high COD Cr ,high colority,complication of organic components, and they are not easy to be biodegrated.

碱性品红，酸性媒介藏青RRN，酸性媒介红S—80，三种染料废水均具有高CODCr、高色度、有机物含量复杂且不易被微生物降解等特点。

The chrome tanning agent was prepared with some wastewater produced from perfume factories contained high concentration organic acid as reducing agent and masking agent by which part of glucose was replaced.

利用香料厂排放的高浓度有机酸废水部分代替葡萄糖作还原剂和蒙囿剂，制备铬鞣剂，并对制备出的鞣剂的理化性能及鞣制性能，进行综合分析。

It is feasible to take lead chrome yellow production technology to treat and reclaim the wastewater.

结论］采用铅铬黄生产工艺对废水进行回收治理是切实可行的。

The feasibility analysis of lead chrome yellow production technology showed that the concentration of total lead in the wastewater was 0.018 mg/L and the concentration of chrome was 4.160×10^(-8) nig/L, which both accorded with the discharge standards.

结果］铅铬黄生产工艺的可行性分析表明，废水中的总铅浓度为0.018 mg/L，铬的浓度为4.160×10^(-8) mg/L，均符合排放标准。

The experimental result shows that, when 200～400 g/t hydroxylapatite adsorbent is used and the stirring time is longer than 60 minutes at normal temperature, the mass density of Pb 2+ in chrome yellow wastewater is reduced to lower than 0.5 mg/L, which comes up to the standard of industrial drain water (1.0 mg/L).

羟基磷灰石吸附剂对铬黄废水中Pb2 +吸附的间歇实验结果表明：当每吨废水中吸附剂用量为 2 0 0～ 4 0 0g时，常温搅拌 6 0min后，在弱酸性或中性废水中，铅离子质量浓度由2 。74mg/L降至 0 。5mg/L以下，完全符合GB8978- 1996工业废水排放标准 1.0mg/L。

After the wastewater was treated by using lead chrome yellow production technology in fact, the concentration of hexavalent chromium was 0.361 nig/L, pH value was 6.24, the concentration of total chromium was 0.963 mg/L and CODer was 67.200 mg/L. The standard exponents of all indices were all teas than 1, so the standard-attainment discharge could be realized.

采用铅铬黄生产工艺实际治理污水后，6价铬浓度为0.361 mg/L、pH值为6.24，总铬浓度为0.963 mg/L，CODcr为67.200 mg/L，各项指标标准指数均小于1，可以实现达标排放。

The assistant materials in lead chrome yellow production such as Al2 (SO4)3, nitric acid, caustic soda and lead nitrate solution were taken as medicaments to treat the wastewater from pigment production and the treatment effect was compared with that by ferrous sulfate method.

方法］用Al2(SO4)3、硝酸、烧碱和硝酸铅溶液等铅铬黄生产原辅材料作为药剂，治理颜料生产废水，并与硫酸亚铁还原法的治理效果进行比较。

And the products are for chromium electroplating wastewater treatment and recycling.

本产品也用于电镀及含铬废水的处理和回收等。

In this paper, a new method of treating chromium containing wastewater with mixture of iron chippings and cinder is put forward.

提出用铁屑和炉渣混合处理低浓度含铬废水的新方法。

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。