近年来污水脱氮主要有以下几种基本方法：物理法、化学法、离子交换法、人工湿地法及生物法，生物法是目前应用最广泛的方法。
There are many ways such as physics, chemistry, ion exchange, man-made wet land and biology etc. wastewater nitrogen removal. The biological way is used widely now.
获取自然环境中的某些部分，再将它们重新组装成湿地或者草原，只是建立生态区的办法之一，生态学家们把这种办法叫做“比对”法。
Constructing a wetlands or savanna by reassembling portions of a natural one is only one method of biome building — which the ecologists call the "analog" way.
之前的Rapanos案，将几个密执安州开发者以及一大片土地卷入其中，并且提出了这样一个问题：与水域相连接的湿地，何时可纳入清洁水法的保护范围。
That matter, known as the Rapanos case, involved a Michigan developer and a large tract of land, and turned on the question of when wetlands are connected to the waters covered by the clean-water law.
用动态土柱法研究芦苇湿地土壤对苯酚的净化效果及其影响因素。
The study on the purification ability of reed wetland soil and influence factors of the phenol by dynamic method was conducted.
将灰色聚类法应用到湿地水体富营养化评价中，旨在建立起一套比较完善、适合于湿地水体富营养化的评价体系。
Grey clustering method is applied to evaluate the eutrophication of wetland water, in order to established a superior evaluation system which is suitable for wetland eutrophication evaluation.
用动态土柱法和静态降解法研究了芦苇湿地土壤对苯酚的净化效果及其影响因素。
Through experiments of static degradation and dynamic soil column, both purification efficiency of phenol and influences of reed wetland soil were studied.
结果表明：BP神经网络分类法是一种有效的湿地分类技术，能够提高分类精度。
This indicates that BP Neural Network method is an effective wetland classification method, and it can improve the classification accuracy of Remote Sensing images.
本文总结了国内外治理酸性废水的方法与研究现状，详细介绍了中和法、人工湿地和微生物法的治理方法。
This paper has summarized the development and the current situation of acid mine drainage treatments; it has introduced neutralization method, constructed wetland and microorganism method in detail.
东江湖湿地是一个具有独特性质的人工水库型湿地，运用层次分析法对东江湖湿地效益及其功能进行评价，得出东江湖湿地效益指标体系，并进行权重分析。
By using the level analytic method, we appraise the Dongjiang lake wetland benefit and its function, and obtain Dongjiang lake wetland benefit target system and weight analysis.
通过对北固山湿地芦苇的连续试验观测，将芦苇生育期划分为五个阶段，采用生长度日法建立芦苇发育进程模拟模型，并确定了各生育阶段的生长度日参数。
The developmental stage simulation model of reed is made with growing degree day method, the corresponding growing degree day parameters of each developmental stage have also been determined.
采用权变评价法探讨了人工湿地环境经济价值的评价程序和计算方法。
The contingent valuation method is introduced to study the procedure and method of assessing the environmental-economic values for constructed wetlands.
采用权变评价法探讨了人工湿地环境经济价值的评价程序和计算方法。
The contingent valuation method is introduced to study the procedure and method of assessing the environmental-economic values for constructed wetlands.
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