废水

The results show that:(1) the overall water quality in the Xiangjiang River had become worse during the 1990s and the main pollutants which caused aggravating pollution were total coliforms, total phosphorus, petroleum and total hydrargyrum ;(2) the main pollution sources were living pollution, which increased evidently in recent years, and industry pollution, of which heavy metal pollution is evident;(3) among the mainstream of the Xiangjiang River , river sections in Zhuzhou, Xiangtan and Changsha suffered from the most serious pollution;(4) it is forecasted that living pollution and agriculture pollution will become more serious in the future.

结果表明：湘江总体水质在20世纪90年代呈恶化趋势，致使污染加剧的主要因子是总大肠菌群、总磷、石油类和总汞；主要污染源为工业污染和生活废水污染，近年来生活废水污染日益突出，工业污染中重金属污染明显；在干流不同河段中，株洲、湘潭和长沙河段污染最为严重；估计未来湘江的生活污染和农业污染还会加剧。

This article submits some suggestions about the effect of the hydrophyte s on wastewater and lake treatment by summaring the hydrophyte s' purging to all kinds of pollutants such as nitrogen,phosphorus,heavy metal and deleterious organic.

随着经济的发展、工农业废水的排放，水体被大量污染。通过水生植物对氮、磷，重金属及有毒有机物等各类污染物的清除作用的了解。对水生植物在废水处理和湖泊治理方面提出了相应的建议。参4

We can use mathematical model of water quality in forecasting the infection of nature course and human activity to the water.

水质模型提供了一种预测自然过程和人类活动对河流水库系统中水的物理特性、化学特性和生物特性影响的手段，广泛应用于评价来自废水处理的废水负荷的影响，或者来自其它各种点源和非点源污染物负荷的影响。

The effects of time of baking, quantity of catalyst, light intensity, density of electric current, initial pH, and reaction time on reduction of COD and decolorization were studied.

考察了煅烧时间、催化剂用量、光辐照强度、电流密度、废水初始pH值和反应时间对废水COD和色度去除率的影响。

The results show that when the concentration of CTAMB and CPAM reached 0.6CEC and 0.5gL^(-1), within reacting time of 12h, decoloring capacity of this intercalary organo-bentonite was the best.

结果表明，CTMAB用量为0.6离子交换容量CEC和CPAM质量浓度为0.5gL^(-1)，二次插层反应时间为12.0h时，有机膨润土对模拟染料废水和实际印染废水的脱色效果最佳。

Interconversion between linear source resistivity and point source resistivity with the use of matrix method.;2. In the total discharge of point source wastewater,about 76% of nitrogen an.

对厦门市近岸海域近10年的废水和主要污染物质排放量估算的结果表明：万元产值工业废水排放量呈逐年下降的趋势，而各污染物的排放总量却逐年缓慢增长；在点源污水排放总量预测中，约76%的氮、磷来自于生活污水；在非点源污染负荷中，农业非点源中的氮、磷负荷占较大比例，城市非点源污染负荷比例最小。

The major bacteria of the activate sludge were identified to be Vorticalla convalleria and Aspidiacs spp., both were considered as responding to denitrification of high nitrate-N of lead azide wastewater.

中文摘要为了探讨含有高浓度硝基氮之叠氮化铅制程废水生物脱氮效能，本研究利用统一食品公司所提供的厌氧污泥进行脱氮菌的培养，经过了15天的培养其培养出大部份都是钟口菌属Vorticella convalleria ，和一小部份则为纤毛虫属aspidisca sp。，来进行含有高浓度硝基氮的氮化铅制程废水生物处理过程中的脱氮作用之研究。

It can be a problem if not drained away: Wastewater will stand in malodorous, stagnant pools that provide breeding places for insects, especially mosquitoes.

不能及时排掉废水则会产生问题：废水停留在恶臭的水洼中，成为滋生害虫，尤其是蚊子的温床。

The feasibility study on degradation of organic phosphorous pesticide by photocatalysis with the existence of dioxide titanium has been introduced in this paper, which signify that 90% COD can be removed and all the organic phosphorous turned into the inorganic provided that COD and organic phosphorous in the influent is 650 mg/L and 19.8 mg/L respectively and the wastewater is irradiated 4 hours with the strength of 375 W mercury arc lamp.

在TiO2粉末的存在下，研究光催化降解有机磷农药废水的可行性。结果表明，CODcr650mg／L，有机磷19.8mg／L的有机磷农药废水在375W中压汞灯照射4h，COD去除率为90％，有机磷将完全转化为无机磷。

The analysis of the samples collected from the wastewater treatment plant showed that the recycled supernatant had a pH of 7.16~8.21, a conductivity of 371.1~769.1 μmho/cm, a total dissolved solid of 193.3~399.9 mg/L, and a turbidity of 0.901~54.3 NTU. The suspended solids of the recycled supernatant was found to be 0.4~45.6 mg/L, lower than the standard value in the Effluent Standards (50 mg/L). The ammonia nitrogen (NH3-N) and the Total Organic Carbon of the recycled supernatant were found to be 0.06~1.5 mg/L and 1.533~17.437 mg/L, respectively. The analysis of the Chemical Oxygen Demand of the wastewater treatment plant showed a concentration of 12.1~128.5 mg/L in the sample of the recycled supernatant.

在废水处理单元采样分析结果方面，回收之上澄液之pH范围为7.168.21间、导电度值范围在371.1769.1 μmho/cm间、总溶解固体量范围在193.3399.9 mg/L间、浊度范围则在0.90154.3 NTU间；在悬浮固体方面，其回收上澄液之范围在0.445.6 mg/L间，且回收水之悬浮固体均小於放流水水质法规标准值50 mg/L；在氨氮（NH3-N）方面，回收上澄液之范围在0.061.5 mg/L间；在总有机碳部份，回收上澄液之浓度范围在1.53317.437 mg/L间；而在净水场废水处理单元化学需氧量分析结果上，可发现净水场在回收上澄液之样本部份其浓度在12.1128.5 mg/L间。

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。