查询词典 wastewater

The treatment of car-washing wastewater by using membrane bioreactor was investigated. The influences of operating pressure and environmental factors on the membrane's filtration function were analyzed combining with theoretical calculations. In the meiobar range, membrane resistance was the dominant role, independent of operating terms. In the middle pressure range, concentration difference-polarized resistance was the dominant role, depending much on operating terms. In the high pressure range, gelatin resistance was the dominant role. The influences of the operating pressure was small on the membrane flux, and the membrane's separating characteristics were related much with mud concentration, membrane flow velocity and etc.

通过膜生物反应器处理某车辆厂洗车废水的实验研究，结合理论计算，分析了操作压力及环境因素对膜过滤性能的影响研究结果表明，在低压区，膜本身阻力占主导地位，它与操作条件无关；在中压区，浓差极化阻力占主导地位，它与其他操作条件关系密切；在高压区，凝胶层阻力占主导地位，操作压力增加对膜通量影响不大，在此阶段膜分离特性还与污泥浓度、膜面流速等操作条件有关。

It has generally accepted that the predominant bacteria used in wastewater treatment are mesophilic bacteria, which highly effective and active in normal temperature.

但是在我国北方地区，冬季污水温度一般为5～10℃，此时，污泥中的中温菌代谢活性降低甚至丧失活性，对污水中有机物的降解能力大大下降，造成污水处理效率低下，出水无法达标。

In this research, we consider that the predominant bacteria in low temperature wastewater treatment in winter were cold-adapted microorganisms, the number of which increased as the temperature dropped more and more, but rarely high up to the number of mesophilic bacteria in normal temperature due to its low growth rate and the restriction of ecological factors, so that the total number and activity level of microorganism in activated sludge decreased.

随着污水温度的降低，污泥中冷适应微生物的数量逐渐增加，但由于冷适应微生物的生长速率相对较低，且容易受到各种生态因子的抑制作用，其数量无法达到常温下中温微生物的水平，使得污泥中微生物的总体数量和活性降低。

The result of anaerobic baffled reactor treating low strength wastewater on mesophilic condition indicates that on the condition of influent CODCr concentration of about 500 mg/L,HRT 3～12 h,the reactor was efficient in the removal of CODCr,viz above 84%,effluent CODCr concentration of 75 mg/L.

对厌氧折流板反应器在中温条件下处理低浓度废水的试验结果表明：在进水CODCr浓度为500mg/L、水力停留时间为3～12h时，CODCr的平均去除率可达84%，出水CODCr浓度可降至75mg/L。

The mechanism of organic wastewater treatment by using the thermophilic anaerobic microbe and the influences of temperature, pH value, loading rate, volatile fatty acid and the microbic carrier on the degradation process were discussed.

探讨了使用高温厌氧微生物处理有机废水的机理以及温度、pH值、有机负荷、挥发性脂肪酸、微生物载体等对有机废水处理工艺过程的影响。

The relationships of microbiologically sulfur producing and dissolved oxygen,volumetric loading rate were studied in detailed during biological treatment for wastewater containing sulfide.

采用接种排硫硫杆菌纯种的升流式生物填料塔法，重点研究了含硫化物废水生物处理过程中溶解氧以及容积负荷与单质硫形成的关系。

It was proved that alkali wastewater can be treated by microelectrolysis.

这为微电解法在碱性废水预处理中的应用奠定了基础。

He combined techniques of ferric-carbon microelectrolysis and Fenton reagent for treating Oxytetracycline wastewater were studied.

研究了铁炭微电解/Fenton试剂法工艺对高浓度难生化处理的土霉素废水预处理效果。

The combined techniques of ferric-carbon microelectrolysis and Fenton reagent for treating high concentration and refractory organic wastewater were studied.

研究了Fenton试剂法强化铁炭微电解工艺对高浓度难生化有机废水的预处理效果。

The microelectrolysis -biomembrane process has been applied to treat Ba2+-bearing organic wastewater.

采用微电解—生物膜复合工艺进行了处理含Ba2+有机废水的实验研究。

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。