水体自净

采集发酵气体又能促进水体自净功能的提高，改善水体质量，也能减少温室效应比CO2高20倍的CH4气体逃逸到空气中，改善大气质量。

And also help water self-purification and water quality . It can reduce the smelly and harmful gas , H2S and stop CH4 , effective gas in the greenhouse , from escaping into the air . it can improve air quality .

疏浚对影响上覆水体自净能力的研究

Influence of Dredging on Self-Purification Ability of Overlying Water

分别在已疏浚和未疏浚河道底泥的影响下，考察了上覆水体自净系数&BOD减少速度系数和COD减少速度系数，以比较疏浚对于改善水体自净能力的效果。

We examined self - purifying coefficient - BOD and COD reduction coefficient in overlying water at the presence and absence of dredging sediment as well as comparison the dredging effectiveness .

BOD5是保证水体自净的指标之一，也是研究废水可生化降解和生化处理工艺设计和动力学的重要参数。

BOD is an indication of guaranteeing water self-pure , also an important parameter of researching biodegradation , biochemical process design and dynamic of waste water .

从夏季COD与Chla呈显著正相关和广西六大海湾的生物资源量分布状况可以判断，生物降解作用在该湾水体自净过程中具有重要的、直接的影响作用。

There was positive correlation between COD and chl-a in Summer and the distribution of biological resource volume of the six biggest bays in GuangXi , from that , we can say that the affection of the biodegradation in the self-purifying process of the bay was important and direct .

R（NO3-N）与Chl-a的显著正相关性以及水域中生物种类的多样性和较高的生物资源量，则显示了水体自净能力对海洋生物的重大影响作用。

The strong positive correlation of R ( NO3-N ) and Chl-a , the variety of biological lives and the higher biotic stock number in the water area show that the self-purifying ability of water body has a great effect on the marine lives .

活性污泥法是水体自净的人工化。

Activated sludge method is artificial self decontamination of water .

而生物净化技术是根据水体自净的原理而设计和开发的污染水体净化技术。

Biological purification techniques were developed according to self_purification principle .

港区污染物扩散及水体自净模拟研究

Research on Pollutant Dispersion and Self-purification in Harbors

并对建立和保持“生物&生态水体自净系统”过程中需避免和解决的问题提出独特的见解。

Opinion on how to avoid and solve problems during the process of constructing and keeping the system was proposed .

钦州湾的生态环境特征及其与水体自净条件的关系分析

The Characteristics of the Bionomical Environment in Qinzhou Bay and the Relationship Between the Characteristics and the Self-purifying Conditions of the Water Body

以河流岸边排放为例讨论了环境容量的计算问题。作者认为，对环境容量精确的计算应根据污染物在河流中的扩散过程和发展的不同特点，将排污河段水体自净容量分段进行计算。

The diffusion characteristics and formation of polluted belt have to be considered for an accurate calculation of capacity of aquatic self purification in polluted river .

根据水体自净的思想中的水体流动和沉淀的机理应用到入侵检测算法当中，实现了入侵检测模型的优化，剔除了模型中潜在的入侵数据。

Flowing and precipitation of the self - purification is applied in the intrusion detection for optimizing the detection model and eliminating the latent intrusion data .

较高的Cu2+浓度不但危害水生动植物的生长，阻碍水体自净，还将影响人类健康。

High Cu2 + concentration is not only hazardous to the aquatic plants and animals , impeding water purification , but also harmful to human health .

污水氮、磷元素排放量已经超过地表水体自净能力，使江河湖海水中逐渐形成富营养化环境。

The discharge of nitrogen and phosphorus are excess the self-cleaning ability of surface water , the eutrophication of rivers lakes and sea are more clearly .

在控制污染负荷排放的同时，也要保证河流基本流量，提高水体自净能力，改善渭河水体的污染现状。

To improve the self-purification ability and pollution situation of river water , control the pollution load and ensure the river basic flow are two important ways .

城市河道生态护岸具有滞洪补枯与调节水位、增强水体自净能力及保护生物植被的功能。

Ecological revetment of urban river course has functions of detaining flood , absorbing and storing water , regulating water level , increasing self-purification capacity of water and protecting vegetation .

低流速传热管自动清洗强化齿型扭带研究加快以提高水环境容量和水体自净能力的工程措施与生态措施的建设。

Research on the Twisted Strip with Teeth to Enhance Self-cleaning Ability of Heat Transfer Tubes at Low Flowing Velocity enhance the capability water environment and water body 's self-cleaning ability .

三峡水库正在形成，由于库区段的长江流速明显减缓，导致水体自净能力大幅度降低。

For the forming reservoir along Three Gorges , owing to current velocity of flow of Yangtze River becoming slower , the self-clean capacity of the water body would be decreased obviously .

南湖是一个较大的封闭性内陆湖泊，由于污水的长期排入，湖泊的水体自净功能已基本丧失。

The South Lake is a very big closed lake . Because the sewage is discharged into the lake in long-term , it has already lost the basic function of water body .

由于表面活性剂对水生植物、水生动物及微生物的损害比较大，影响水体自净能力并加速水体富营养化进程。

The surfactants can seriously harm the aquatic plants , the aquatic animals , and the microorganisms , impair the self-purification capacity of the water body , speed the water eutrophication process .

三峡库区蓄水后水体自净能力降低，突发水污染事故对库区水质的威胁加大。

The water self-clarification ability in the reservoir area is much lower and the risk of the emergency of water pollution is more serious after the accomplishment of water storage in Three Gorges .

通过对河道的生态改造，恢复河道生态功能，提高水体自净能力，成为深圳市的生态景观廊道，达到人与自然的和谐相处。

With the work of river ecology restoration and ecological function improvement , water self-purification enhancement , the riverbanks become the ecology landscape corridors , and the people live in harmony with the nature .

通过对太阳能、风能、生物质能等可再生能源的利用，加强水体自净能力，最大限度地体现景观水体的生态化效应。

Through the usage of the renewable energy , such as solar energy , wind energy , biomass energy etc , strengthens the possibility of water self-purification , utmost ground reflects of the ecological landscape water .

结果表明：（1）经过水体自净和红树林湿地的净化作用，随着湿地与排污口距离的加大，水体污染逐渐减轻；

It showed that : ( 1 ) water pollution status would be gradually alleviated along with the distance away from the discharge outlet owing to the water self-purification and an assimilative effect of mangrove wetlands ;

但流域水生态环境问题并未从根本上得到解决，流域水资源短缺，水体自净能力差、水生态功能下降、生物多样性降低。

But water environment problem of Huaihe River basin ( Henan section ) had not been fundamentally solved , the shortage of water resources , the poor of water purification capacity , water ecological function declined , reduction in biodiversity .

水环境容量是水体自净能力的度量，它也是一种自然环境资源，合理开发和利用这一宝贵资源可以减少污水处理费用，直接获得经济效益。

Capacity of water environment is measure of self-purification ability of water body . It is a kind of natural environmental resources , and reasonably developing and making use of the precious resources can reduce wastewater treatment expenses and get economic performance .

溪流水体自净作用对水质重金属污染具有一定的修复能力，该能力受距污染源的距离、流程长度以及水质污染程度的影响。

Self-purification of rivulet water body can somewhat do work for remediation of the contaminated water . But the remediation capacity depends upon the distance from the pollution source , scalar transport in rivulet flows and the pollution grades of the contaminated water .

要实现对水体自净容量的准确分析，首先要建立污染物与水体之间的相互关系模型，在此模型基础上分析污染物在水体中的迁移转化规律。

To accurately analyze the self-purification contents of water body , at first we need to set up the interrelation model of the pollutants and water body , and then we can analyze the migration transformation rule of the pollutants in the water body .

分析结论是，污染源水的生物法预处理是一种经济有效且无副作用的方法，其本质是水体天然自净过程的人工化，对NH3-N、酚和有机物，具有较满意的去除效率。

It showed that biological pretreatment of polluted source water was effective and without side-effect specially in removing ammonia nitrogen , phenol and organic contaminants .