The main problems of applying recycled ammonia-nitrogen containing wastewater to circulating water systems are analyzed.

The parameters needed to measure are Oxidation-Reduction Potential ORP, Dissolved Oxygen ( DO ) , content of ammonia nitrogen.

测量的参数指标主要包括:氧化还原 电位, 溶解氧 、 氨氮总量.

After cultivated, the ammonia-nitrogen and sulphide content in it were determined.

培养接入菌种的臭液, 测定其 氨氮 含量和硫化物含量.

This avoid ammonia nitrogen loss in the measurement and distillation steps.

避免了称量时易造成的样品损失及蒸馏过程的氨氮损失.

Frequent failure are analyzed for 3 W-A 1 type ammonia pump failure.

分析了3W-A1型液氨泵故障频繁的原因.

EMFRIG N 32 with excellent chemical and thermal stability is suitable for ammonia refrigerant systems.

EMFRIGN32是一种具有极其优异的热氧化安定性与化学安定性以及更低的流动点的高级冷冻机油,尤其适用于液氨冷媒系统.

In this paper , the production process of synthetic ammonia medium pressure was studied.

以中压合成两级分氨流程为研究对象, 给出了合成氨工序的危险性分析方法.

The larger the company is the production of synthetic ammonia and nitrogen fertilizer businesses.

公司是国内较大的合成氨和氮肥生产企业之一.

A method was developed for the determination of diphacinone ammonium salt by HPLC.

采用高效液相色谱法测定双氯敌鼠铵盐的含量.

The problem in the ammonium sulphate process and the reconstruction in our corporation were proposed.

提出了我公司硫铵生产中存在的问题及相应的改造方案.

Calculate the percentage by mass of nitrogen in urea and ammonium sulphate.

试计算氮在尿素及硫酸氨的质量百分率.

About six tons of ammonium sulphate daily extraction, sale as a by-product .

每日提取硫酸铵约6吨,作为 副产品 出售.

Ammonia can be removed from wastewater by forming magnesium-ammonium-phosphate ( MAP ) precipitate with magnesium salt phosphate.

铵根离子可以和镁盐、 磷酸根 在适当的条件下生成磷酸铵镁沉淀,利用这一反应可以去除水中的氨氮.

The water content of ammonium phosphate is an important quality index.

磷铵产品的水分含量是重要的质量指标.

Some acid is added and part of the solution withdrawn for ammonium sulfate recovery.

添加一些硫酸,而部分溶液被收回用于硫化铵的回收.

Furthermore, the influence of ammonium sulfate on the separation of amino acids mixture was investigated.

还考察了在混合物中含有硫酸按时的情况.

Ammonium sulfate can be substituted during the cooler months as a nitrogen source.

在寒冷月份硫酸铵可以作为氮的替代品.硫酸铵也有利于病害控制.

This paper is concerned with preparation method of nano-sized magnesium oxide from ammonium carbonate and chloride.

研究了由碳酸铵和氯化镁制备纳米氧化镁的方法.

Water-soluble single-walled carbon nanotubes were prepared by successive ammonium persulfate oxidation and ammonium sulfamate chemical modification.

通过过二硫酸铵氧化和氨基磺酸铵化学修饰两个步骤,制备了在水中有较大溶解度的单壁碳纳米管.

Under ultrasonic polyacrylic acid was synthesized with ammonium persulfate as initiator.

以过硫酸铵为引发剂,在超声波辅助下引发丙烯酸单体聚合.

Substitute for ammonium persulfate to avoid environment pollution problems in applications.

代替过硫酸铵,以避免应用中的环境污染问题.