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The changing law of reaeration is of great importance for predicting and evaluating the oxygen content in water and the selfpurification process of organic pollutants.

水体复氧规律的研究对于预测和评价水中溶解氧含量，确定有机污染水体的自净过程具有重要意义。

The reaeration process and reaeration velocity play key roles in the transfer, diffusion and purification process of organic pollutants.

在实验水槽中，通过测量水体中溶解氧浓度的变化，研究不同搅拌速度、搅拌头处于不同水深情况下的复氧过程，以及紊动水体中中性盐和有机物对复氧的影响，并在表面传质系数分析的基础上，摸拟计算复氧系数 k2与水深H的关系。

Therefore,it is feasible to treat pollutants on-site by aeration and leachate recirculation.

因此，在填埋场进行污染物原位去除是可行的。

Strengthening responsibility regulations mainly include the perfection of contract guarantee policy in the exploitation of mines, land, and other major resources, the deposit refund system for potential pollutants or reclaimable solid refuse, and overall publication of environmental information.

完善政策主要是改进价格规制激励政策，包括继续改革排污收费制度、健全与排污收费相联系的环境税收政策、加快改革环境补贴政策等；推行排放许可证交易规制政策，主要包括建立排放许可有偿取得与排污交易工作平台、加强必要的能力建设和观念培训、选择适当范围进行试点、加强污染源的排放监测等；强化责任规制政策，主要包括在矿山和土地等重大资源使用中完善履约保证政策、对具有潜在污染性或可回收利用的固体废弃物实行押金返还政策、全面推行环境信息公开等。

If the ecosan would be developed there, new industries could be promoted and 50-100 thousands of employing opportunities could be created, incidence rate of diseases could be reduced, 560 thousand cubic meters of methane could be recycled, investment of sanitary toilet could be reduced to an acceptable price, i.e., 600-750 RMB yuan per house, ecological agriculture could be developed, and pollutants discharge could be reduced while ecological security could be guaranteed.

若在该区域推广生态卫生，可能产生社会、经济及环境效益如下：带动新兴产业，增加5~10万的直接就业机会；降低疾病感染率；回收沼气56万立方公尺；卫生厕所投入控制在可接受的600~750元户^(-1)；促进生态农业循环；降低污染物排放、保障生态安全。

Experts with Environmental Law, Chang Jiwen, a researchist in the Researching Institution of Law, CASS, said to "China Financial News", work on reseaching " Green tax and fees " is gainning better cooperation of the various Ministries and progressing faster than expected by likely going public next year. By then, charges for discharging pollutants into water and air as well as tax on resources export would be raised steeply.

环境法专家、中国社科院法学研究所研究员常纪文对《第一财经日报》表示，"绿色税费"研究工作得到各部委大力配合，速度超过预期，预计可能在明年推出，届时水污染和大气污染的排放费及资源出口税将大幅提高。

In a word, according to the research of pulp wastewater treatment using pond-reed system, we discovered that the complex system can removal wastewater pollutants effectively, at the same time, the salinity of soil is dramatic decreased through wastewater washing, which bring many active results: increasing of N, P, and organic matter; enhancing of soil microbes, enzymes, MBC/TOC, and soil respire rate; increasing of reed height and yield, decreasing of weed diversity; affecting of transporting ability of Ca, Mg, K, Zn, and Mn , and improving of water shortage, salinity resistance and rhizosphere metabolized secretion conditions, all those improved the weak ecosystem.

总之，经过对生物塘-芦苇湿地系统处理造纸废水的研究，发现系统能有效去除废水中有机物，同时废水灌溉还极大的降低了土壤盐分，产生了一系列积极效应：系统内氮、磷、有机质增加；土壤微生物和酶活性增强；MBC/TOC及土壤呼吸强度提高；芦苇株高和产量增加，而杂草的多样性减少；同时也会影响系统内钙、镁、钾、锌、锰等离子迁移，改变系统受盐碱和缺水胁迫的现状和根际代谢状况，极大地改善了滨海盐碱生态系统现状。

In this thesis a novel hybrid respirometer is developed based on the principle of pollutants biochemical degradation, and the methods of ASMs influent COD characterization are studied systematically using the respirometer and the other routine analytical methods.

论文基于污染物生物化学转化的基本原理，开发了一种新的污染物好氧生物呼吸测量仪；运用所开发的呼吸测量仪，并联合应用一些常用的水质分析方法，对ASMsCOD组分表征方法进行了系统研究。

Although hydroxyl radicals are degraded by pollutants, says Rohrer, some of these same molecules also help to recycle OH.

虽然氢氧自由基因为消灭污染物而减少，Rohrer说，但是也有些相同的分子能帮助它们再生。

It could be that other types of pollutants have polluted the water, killing off the salamander and/or its eggs.

也有可能是其他种类的污染物造成了水污染，大量杀死了蝾螈和/或其卵。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。