查询词典 ammonia nitrogen

The results showed that the compound microorganism preparation improved water quality and decreased significantly the ammonia nitrogen in water.

试验表明，复合微生物制剂对改善水质，降低水体中的氨氮具有明显作用。

The research aimed to provide basis for solving the problemof ammonia nitrogen contaminationin culture water.

为解决养殖水体的氨氮污染问题提供依据。

A new method to determine the concentration of ammonia-nitrogen by ammonium ion selective electrode has been introduced in this paper.

摘要本文介绍一种新型的测量氨氮浓度的方法―铵离子选择电极分析法。

The high ammonia-nitrogen to be discharged from the kidneys, so eat dead crabs is very detrimental to the kidneys.

高氨氮是由肾脏排出，所以吃死螃蟹是非常有害的肾脏。

This study examined the impact of the pH and ratio of chlorine to ammonia-nitrogen(Cl2:N ratio) on the formation of trihalomethanes and haloacetic acids(HAA5)in water system with chloramine,under two-day simulated pipeline system.

本试验模拟管网，取典型的停留时间2d，考察了氯胺消毒时，pH和Cl2：N对管网中的消毒副产物浓度的影响。

Evaluation index of industrial water pollution are defined based on industrial wastewater emission standards and the emphasis of water control, according to industrial water pollution emissions data of 31 provinces in China impact of water pollution is calculated by the improved entropy method, lead, cyanide and ammonia nitrogen are in the top three on the impact of water pollution, water pollutant index are divided into heavy metals index and composite index by variable cluster.

根据我国工业各行业的排放标准和水污染控制重点，确定了我国工业水污染状况评价指标，采用改进熵权法对我国31个省区工业水污染物的排放数据进行计算，得到工业废水中铅、氰化物、氮氨对水污染影响居于前三位，应用变量聚类将水污染物分成重金属指标和复合指标，通过熵值对全国各地区工业水污染总体状况、重金属指标、复合指标进行排序，得到东部、中部地区是我国工业水污染较严重地区，但两个地区工业水污染原因有较大区别。

Total bacterial count, total coliform group, residual chlorine and ammonia nitrogen were detected respectively.

细菌总数和总大肠菌群数测定所用水样严格按照无菌操作的基本要求进行采样。

The influence of various factors on the efficiency of separation on ammonia nitrogen was investigated, including the surfactant dosage, the value of pH in the external phase, the concentration of sulfuric acid in the internal phase, the ratio between the volume of oil phase and the volume of water phase and so on.

用ME表面活性剂制作的乳液萃取冶金废水中的氨氮，考察了表面活性剂用量、外相水pH值、膜内相硫酸浓度、油内比、乳水比等因素对氨氮去除率的影响。

Through the comparison and balance of the treatment effects and economic rationality, the thesis put forward a series of treatment techniques of anaerobic digestion-ANAMMOX -SBR, with consideration of the the high concentration of organic substance , ammonia nitrogen and malodor characteristic of swine wastewater.

通过比较和权衡处理效果及经济合理性，并针对养猪场废水有机物和氨氮浓度高、恶臭严重等特点，提出了厌氧-厌氧氨氧化-SBR的处理工艺。

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。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失