水质污染

In addition, the costs of municipal and industrial wastewater disposal for water quality protection and pollution abatement are increasing.

此外，城市和工业废水处理费用的水质保护和污染控制日趋活跃。

No combined exploitation of paretic water and artesian water already polluted may be permitted.

第四十三条在开采多层地下水的时候，如果各含水层的水质差异大，应当分层开采；对已受污染的潜水和承压水，不得混合开采。

Based on the previous studies and combined with the national important scientific special item—the projection of water environment improvement and comprehensive demonstration in Suzhou city. The influence to water quality melioration under different conditions of packing types, stuffing rate, air supply and hydraulic loading using water of Miaojia river as experiment water sample; the water contaminate removal ability by the absorption and interception of charcoal filling and the research of the denitrification rate of charcoal filling were discussed in the paper. Furthermore, the activity of the biofilm on savageness and artificialness filling surface in the projection demonstration riverway were also analyses.

本人在总结前人研究的基础上，结合国家重大科技专项——苏州城市水环境质量改善与综合示范项目，研究了不同填料基质、填充率、曝气量、水力负荷条件下生物填料对苏州城市重污染河道水质的改善效果；木炭填料吸附、截留作用对水体污染物去除能力及其反硝化脱氮能力；分析了项目示范区河道内天然填料及人工填料挂膜成熟的生物膜活性。

With the land use change and the enhancement of human activity, the groundwater pollution index rises from the indirect recharge area via the direct recharge area to the discharge area. The same variation happens from upper reaches to lower reaches in Daxin river basin, a typical karst area in the east of Jinan spring basin where the patterns of land use and human activity changes apparently. There is a close relationship between the groundwater and land use change and human activity.

伴随土地利用方式的改变和人类活动强度的空间变化，地下水质从间接补给区、直接补给区到泉水排泄区，单项污染指数和综合污染指数依次升高；具有典型代表性的泉域东部大辛河流域，从上游、中游到下游，地下水污染物的浓度也渐次升高，且愈往下游污染物浓度增幅愈大，显示出与土地利用方式和人类活动的密切相关性。

To prevent the environmental pollution, protect the water quality of the ground water body, and to exert enough the productive potentialities of resources, it is important to control nonpoint pollution in the protection zone of headwater area of a reservoir at present.

为防治环境污染，保护水库水源地水体的水质，充分发挥资源的生产潜力，对水库水源地保护区进行面源污染控制尤显重要。

The jeopardy and ponderancy of NPS is rising with the developing capability of point source pollution control. It comprehensively introduces the current situation of NSP research at home and abroad, analyzes and compares the exploration methods of NSP.

非点源污染直接影响人类生存的环境质量，污染饮用水源，引起水体的富营养化，破坏水生生物的生存环境，造成土壤生产能力和水质的下降，严重影响人民生产、生活质量和福利水平的高低[1-3]。

Through pot cultivation of different sewage irrigation, we know that potherb mustard would be turning color in nerve and drying out and without green in Cd-contaminated soil. And in the Pb-contaminated soil, the potherb mustard would be wilt and lost greenand leaves appeared reddish-brown patchs and new leaavs curls.

通过不同水质污水灌溉的生物盆栽试验，可知雪里蕻受镉污染的受害症状主要表现为沿叶脉变色，失水失绿，受铅污染的受害症状主要表现在失绿萎蔫，有红褐色斑块，新叶卷曲。

The removal of micro-organic pollutants in the polluted water sources by the bio-nitrification process of oxygen enrichment with the elastic filling and micropore aerators has been studied for raw water in the polluted river.

为提高微污染水源水的饮用水质安全性，采用弹性填料微孔曝气富氧生物接触氧化工艺处理受污染的某水源原水，进行了除微量有机化学污染物的比较研究。

Because sheet of the known that the leakage will bring the environment problems in early days the power station constructed, generally not adopt technical measure of defending seeping, the groundwater environment changed obvious influence by the ash water leakage, the paper take the ash field of JiNing Power Station as an example, through the data contrast of the plain ash field water level and water quality in the time and on the apace, expresses that the groundwater of ash field district has already suffered pollution, generally, the scope of the pollution is in 1 kilometer.

由于早期电厂建设时对灰场渗漏引起的环境问题缺乏认识，一般不采以专门的防渗措施，灰水渗漏对地下水环境产生了明显的影响。论文以济宁某电厂灰场为例，通过对平原灰场水位、水质在时间和空间上的数据对比表明灰场区地下水已遭受污染，其污染影响范围一般小于1km。

Based on investigation and assessment of heavy metal pollution in water, mud and creature samples of Jilin Songhua River and its upstreams, it is found that mercury pollution tended to be worse, which had ever been controlled efficiently in the early 1980's.

通过对吉林松花湖及其上游入湖河流水质、底泥、动植物样品中重金属污染的调查和评价，发现20世纪80年代初开始基本得到控制的汞污染现象又呈加重趋势。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。