secondary pollution

With high total usage and no secondary pollution, its oil recovery ratio reaches 90 %.

该工艺综合利用率高,无二次污染,油的回收率可达90%,适合于小规模废乳化油的净化 、 再生.

With high total usage and no secondary pollution, its oil recovery ratio reaches 90.1 %.

实验结果表明,该工艺具有综合利用率高,成本低,无二次污染, 油的回收率可达90.1%以上.

Controlling environment pollution by biotechnology has the advantages of low cost and no secondary pollution.

应用生物技术治理环境污染,具有费用低、不产生二次污染的优点.

The method has features of convenient operation, no secondary pollution, safety security and high adaptability.

具有操作方便 、 无二次污染 、 安全可靠及适用性强等特点.

For example, in order to prevent secondary pollution, even the use of sewage is not Valve asbestos packing and gasket sealing.

例如为了防止二次污染，即使是排污阀也不采用含石棉的密封填料和垫片。

Corrosion scales could form on the pipe wall that serving for long time. Drinking water can suffered from secondary pollution, and hygeian situation directly influences supply water quality.

服务年限长的供水管道内壁会形成腐蚀物，使饮用水受到二次污染，供水管道的卫生状况将直接影响水质。

Comparing with traditional flocculant the secondary pollution wasand the bioflocculant is safe or innocuity.

与传统的混凝剂相比,生物絮凝剂具有无二次污染、安全无害等优点.

The potential problem of secondary pollution due to the decompo.

文中还探讨了修复过程中可能存在的二次污染问题.

These plant residues and sediment carrying a certain amount of pollutants, if not promptly removed from the water, may be pollutants will re-enter the water body to cause secondary pollution, thus affecting the purification of the wetland system at the same time lead to resource waste.

这些植物残体与底泥携带有一定量的污染物，如果不及时的从水体中移除，可能污染物会重新进入水体中造成二次污染，从而影响人工湿地系统的净化效果，同时造成资源的浪费。

The utility model is easy and fast to operate and saves time and effort, which can effectively prevent secondary pollution of molten steel to ensure the high cleanness of the molten steel.

本实用新型操作方便快捷，省时省力，并能够有效防止钢水的二次污染，保证钢水的高洁净度。

The Application of Wet Cyclone and Its Secondary Pollution Control

麻石水膜除尘器的应用及二次污染的防治

Heavy metal pollution, man-made chemicals pollution, such as POPs and EDCs, man-made sources of sulfur in the atmosphere are always the main research topics of environmental science. And secondary pollution and compound pollution are the frontier of environmental science.

重金属污染、POPs、DECs等有毒有害人为化学品污染，大气人为硫源污染等一直是环境化学研究的主要内容，而二次污染、复合污染是环境科学探索的前言。

For the house-hold water storage , the main factor is secondary pollution on water stored.

而在家庭储水方面, 主要是存在二次污染的风险.

This method of chemical modification is in the hydrogen terminal surface of boron-doped diamond film modified the amino, which is not produce secondary pollution, high rate of modification, low equipment demanding, simple operation and low cost method.

该方法是在氢终端的掺硼金刚石薄膜表面导入氨基，是一种不产生二次污染、修饰率高、设备要求不高、操作简单以及成本较低的化学修饰方法。

Recently, Chaohu cyanobacteria bloom outbreaks frequently, cyanobacteria salvage has become an important emergency measures for control of cyanobacteria, but salvaged cyanobacteria improper disposal can cause secondary pollution.

近些年，巢湖蓝藻频发，蓝藻打捞已成为治理蓝藻的重要应急措施，但打捞上岸的蓝藻处置不当会造成二次污染。

Titanium oxide has been widely because it is stable , efficient and has no secondary pollution.

二氧化钛具有稳定性好 、 光催化效率高和不产生二次污染等特点,有着广阔的应用前景.

Arsenic ( As) accumulation and volatilization by microorganism decreasing environmental risk of As in soil has been recognized as an economically efficient remediation method without secondary pollution.

利用微生物对砷（As）的累积与挥发来降低土壤中砷的环境风险已被认为是一种经济、有效且无二次污染的修复措施。

Control of the secondary pollution.

控制二次污染.

Studies on the waste incinerating disposal by circulating burning without secondary pollution

循环燃烧无二次污染的垃圾焚烧处理研究

High-pressure features, first to ensure the water is secondary pollution.

高压等特点, 首先确保了饮用水不被二次污染.

In the transport process, bad structure is easy to result in secondary pollution.

运输过程中, 不良机构容易造成二次污染.

Absorbing SO 2 with wastewater effluent after biological treatment is a new technology of treating waste with wastewater and without secondary pollution.

废水生化出水吸收二氧化硫是一种以废治废，不产生二次污染的新方法。

Microbial flocculent is a new kind of flocculent that has good flocculation decolourization efficiency and is characterization by safety, non-toxicity and no secondary pollution.

微生物絮凝剂是一种安全无毒、无二次污染的新一代絮凝剂，具有良好的絮凝作用和脱色性能。

Environment friendly, healthy products, completely avoid the secondary pollution and great noise of conventional vacuum cleaners.

环保 、 健康型产品, 完全避免了拖走式吸尘器造成的有害的二次污染和很大的噪声.

Without damage, dust and the secondary pollution, the use of abrasive fillers, can reduce costs, enhance profits improve apparent quality.

使用高、低猛合金丸, 无破损 、 无灰尘、无二次污染, 可见低成本, 提高效益,提高产品的外观质量.

However, because of their huge one-time investment, operation costs, easy to cause secondary pollution.

但因其 一次性 投资巨大, 运行成本高昂, 容易造成二次污染.

Physical absorption, without toxic and side effect or secondary pollution.

物理吸附, 无任何毒副作用,无二次污染.

Results indicated that UV organics analysis is advantageous over real time response and high precision without secondary pollution.

试验结果表明，紫外有机物分析法具有操作、维护简单，无二次污染，实时响应快，精密度高等优点。

The hot and cold water pipes can ensure the water quality without secondary pollution.

自来水的冷热水管,保证水质无二次污染.

Overtop energy consumption and serious secondary pollution is the distinct defects existing in the current comprehensive utilization methods of the two wastes.

目前，对于这两种污染物的综合利用仍存在能耗过高，二次污染严重等问题。