The selective exchange process was used in the treatment of wastewater containing NH 3 N from catalyst production.
用铵离子选择交换工艺对催化剂生产过程排出的含氨氮废水进行处理。
This paper probes into the NH 4 + N, NO 3 - N concentration dynamics on DMPP (3,4 dimethylpyrazole phosphate) in vegetable soils under fertilized condition with aerobic cultivation.
采用好气培养法研究了新型硝化抑制剂3，4-二甲基吡唑磷酸盐（DMPP）对菜园土壤养分肥力的影响。
The effect of N forms and NO-3-N/NH+4-N ratio on iron nutrition in hydroponically grown lettuce were investigated.
研究了硝态氮与氨态氮及其不同配比对水培生菜铁素营养的影响。
Minimization of NH 3 N discharge can be realized through strengthening the steam stripping efficiency of sour water and improving the performance of the wastewater biological treatment facilities.
通过加强废水汽提效果和完善污水处理场生化处理设施，控制外排废水氨氮总量；
The result for treatment of NH 3-N wastewater by catalyst wet oxidation showed that the co-catalyst has higher activity and the good inhibition for copper dissolution.
实验结果表明，新制备的复合催化剂氧化活性显著提高，并有效地抑制铜的溶出。
The result for treatment of NH 3-N wastewater by catalyst wet oxidation showed that the co-catalyst has higher activity and the good inhibition for copper dissolution.
实验结果表明，新制备的复合催化剂氧化活性显著提高，并有效地抑制铜的溶出。
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