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 results showed that the compound barrier with calcite and zeolite can not only control the ammonia release from the sediment, but also reduce the phosphorus release from the sediment effectively.
结果表明，天然沸石和方解石复合覆盖层不仅可以有效抑制底泥氨氮释放，也可以有效抑制磷的释放。
To oxidize (an ammonia compound) into nitric acid, nitrous acid, or any nitrate or nitrite, especially by the action of nitrobacteria.
通过硝化细菌的作用将氨的化合物氧化成硝酸盐的过程。
Through the leaching experiment, this paper studied on the slowly releasing characteristics of lignin compound fertilizer which was made of ammonia products of ammonia sulfite pulp black liquid.
通过肥料的沙柱淋溶性试验，研究了以亚铵法制浆蒸煮废液氨解产物为原料研制的木质素肥料的缓释特性。
A compound that contains ammonia.
含有两个氨基的化合物。
The polarographic behaviour of an azo compound produced by the reaction of Methy amine phosphorus (MAP) with 8 hydroxyquinoline (Oxin), in the ammonia medium has been studied.
研究甲胺磷(map)的水解等反应的生成物亚硝酸与8羟基喹啉合成的偶氮化合物的极谱行为。
For the fact that the present sulphuric acid price is low, it is proposed to change the production of compound fertilizer from rotary drum steam granulation to ammonia and acid granulation process.
针对当前硫酸价格低，提出了把转鼓蒸汽造粒生产复合肥工艺改为氨酸法造粒生产复合肥。
Zeolite is a natural and cheap mineral, which could be used in the removal of ammonia nitrogen, organic compound, turbidity, heavy metal and oxyanion from water.
沸石是一种天然廉价矿物，可用于去除水中氨氮、有机物、浊度、重金属离子和含氧酸阴离子。
Excess potassium chloride and ammonia are transferred into a by-product N-P-K compound fertilizer to obtain a product with high purity and high yield.
过量的氯化钾和氨转移到副产品氮磷钾复合肥中，得到的产品纯度高，收率高。
Excess potassium chloride and ammonia are transferred into a by-product N-P-K compound fertilizer to obtain a product with high purity and high yield.
过量的氯化钾和氨转移到副产品氮磷钾复合肥中，得到的产品纯度高，收率高。
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