查询词典 wastewater

With a purity of 94.1% and 74% respectively, voltaite crystal and solid FeCl3 have been produced by crystallizing in a lower temperature following the vaporization of the wastewater, with 70% iron and 96.5% potassium recovered. No need of high temperature and pressure, and with high efficiency, low energy loss and less pollution, this process proves its effectiveness.

用硫酸酸浸废液蒸发结晶后，铁的回收率为70%，钾的回收率为96.5%，整个工艺无需高温，无需加压，操作简单，具有高效、低能耗、低污染的特点，表明用本项技术处理酸浸废液行之有效。

Main characteristics of W-SFCW are optimal flow-state on wastewater and domestic sewage flow wavily in W-SFCW bed.

成熟的潜流湿地系统在其填料表面和植物根系形成了生物膜，在湿地床的内

1 M,with dominant helophyte of Zantedeschia aethiopica ,one kind of fancy and economical helophyte,for low concentration agricultural wastewater treatment is reported here.

报道了以观赏性和经济性植物马蹄莲为主要植物的人工湿地中试床(5 m×1 m×1.1 m)处理低浓度农村污水的研究。

Constructed wetland pilot system (5 m×1 m×1.1 m), with dominant helophyte of Zantedeschia aethiopica, one kind of fancy and economical helophyte, for low concentration agricultural wastewater treatment is reported here.

报道了以观赏性和经济性植物马蹄莲为主要植物的人工湿地中试床(5m×1m×1.1m)处理低浓度农村污水的研究。

In the agricultural activities, heavy metals from atmosphere,mineral fertilizer, pesticide, wastewater irrigation and industrial waste materialall enter the soil directly and result in the cumulation of cuprum and zincum inlarge amounts in soil.

在农业生长中，来源于大气、矿质肥料、农药、污灌以及工业废弃物的重金属直接进入土壤，造成铜、锌在土壤中大量累积，破坏了土壤环境中的营养元素平衡，降低了农产品的产量和质量，威胁着人、畜的健康。

Seasonal variation of the distributions of microorganism in the root-zones of wetland plants (Phragmites australis, Zizania latifolia, Zizania latifolia etc.), the substrate layers of control SSPs, together with the effects of wastewater treatment were studied. The results are as follows: the numbers of microorganisms in the different plant root-zones were different; the purification effects were also different. The number of microorganisms in the substrate of the control plot becomes smaller with increasing depth. The numbers of bacteria in fall were higher than those in the summer for the three plant zones and the control, and the number of fungi and actinomyces in summer was much higher than that in the fall for control. As for fungi and actinomyces in the experimental systems, most of their difference between the summer and fall were not as big as that in the control.

通过对不同季节芦苇、茭白和香蒲等湿地系统植物根区、无植物对照基质微生物分布状况以及净化效果的研究，结果显示：（1）种植不同植物的湿地系统根区微生物数量不同，其湿地净化效果也不同；（2）对照系统微生物的数量随基质深度的增加而递减；（3）季节变化显示湿地系统秋季的细菌总数量比夏季高；但对照系统夏季的真菌和放线菌数量明显高于秋季；（4）湿地系统TP的去除率夏季高于秋季。

The overvoltage difference between oxygen evolution and chlorine evolution of optimized Ti/SnO_2-Sb_2O_3-CeO_2 electrode was the biggest,that is to say, it is more proper to be used for electrochemical oxidation of ammonia wastewater when there exist chlorin ion.

其中，经过优化的Ti/SnO_2-Sb_2O_3-CeO_2电极析氧析氯电位相差最大，反应出其性能优于其他电极，更适合用于含有氯离子情况下电氧化含氨氮废水的处理。

The result of the test shows: in the case of inexistence of chlorin ion, the effect of electrochemical oxidation of ammonia wastewater of the Ti/SnO_2-Sb_2O_3 electrode is better than the Ti/SnO_2-Sb_2O_3-CeO_2 electrodes,efficientry.When there exist 400mg/L chlorin ion,both have perfect effect.

对氨氮的电化学氧化去除试验表明，在不含氯离子的情况下，经过优化的Ti/SnO_2-Sb_2O_3电极的去除效果优于经过优化的Ti/SnO_2-Sb_2O_3-CeO_2电极，但效率不高；而在含有400mg/L氯离子情况下，二者对氨氮均有很好的去除效果。

The effect of degradation of Methyltin mercaptide production wastewater after disposed by UV/O3 is studied.

进行了UV/O3工艺对硫醇甲基锡生产废水中有机物降解效果的研究。

This dissertation includes: investigations and analysis of wastewater characteristics, acclimating and isolating bacteria which can bi...

研究内容包括：油制气废水组成分析与调查、微生物的驯化与分离、微生物降解能力及影响因素、流化床氧传递特性、优势菌种和流化床耦合工艺处理油制气废水的动态实验。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。