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- The second pollution of the active sludge was discussed in municipal wastewater treatment with method of the A/O. 讨论了城市污水经过A/O工艺处理时活性污泥的二次污染问题。
- The application of its technique is determined by three factors: result of treating,cost of investment,and the possibility of second pollution. 焦化废水治理技术能否成功应用;主要受3个因素制约:处理效果、投资运行费用以及是否会造成二次污染.
- The test of operation indicates that it can get ride of the dust in flue gas and avoid the second pollution of the water. 运行测试结果表明,该装置能够有效地净化手烧燃煤锅炉的烟尘,避免除尘废水的二次污染。
- During the production of trichloroacetaldehyde , waste surfuric acid as the by-products would causes second pollution due to its high aldehyde-content. 三氯乙醛生产工序排放的废硫酸因含醛高而多次发生二次污染现象。
- No wastewater release in manufacture procedure, remaining and soil assimilate after degradation, no second pollution formed. 产品在生产过程中，无污水排出，降解后，残余物质与土壤同化，不会形成二次污染。
- Because the ashless additives had not second pollution,they became the development trend of soot suppressants and combustion aids. 无灰剂虽然效果不如有灰剂,但不会造成二次污染,是消烟助燃剂的发展方向。
- Desulfurization inside the bed of Circulating fluidized bed boiler(CFBB) has obvious advantages as high efficient, low cost, easy operation and reduce of the second pollution. 循环流化床锅炉炉内脱硫是其突出优点之一,它具有脱硫效率高、成本低、操作简单、无二次污染等优点。
- This insecticide was not accumulated and second pollution if farmers use it reasonably, but it cause toxicity to some sensitive insect and some aquatic. 在土壤和植物中合理使用,不会造成积累和二次污染,在环境中它对一些敏感昆虫或水生类动物有影响。
- Agricultural-grade dicalcium phosphate (DCP) is a by-product from the production of feed-grade DCP and most of them were not utilized yet or even resulted in a second pollution. 肥料级磷酸氢钙是用二段中和沉淀法生产饲料级磷酸氢钙的副产品。大多数饲钙厂没有利用肥钙，甚至造成二次污染。
- Polyphosphate ester, with a good thermal stability and anti-combustion capability, is an additive fire retardant without any second pollution widely used in the applied field. 摘要聚磷酸酯具有良好的热稳定性和优良的阻燃性能，是应用领域十分广泛的添加型阻燃剂，不产生二次污染。
- No second pollution and energy repeated use can be achieved in the precesses of sludge treatment by the method.Moreover, higher economic benefit can be acquired. 此法不致形成二次污染,能源可重复使用,并有较高的经济效益。
- Land application of sewage sludge not only avoiding the second pollution to the environment, also realizing the resourced, harmless, stabilization, and decreased disposal purpose. 虽然城市污泥中含有重金属等有害物质,但大量研究表明,经过无害化处理的城市污泥适量施用不会对土壤环境和作物品质造成影响。
- The inner layer is made up of poisonless polytheve with no second pollution, it is an ideal product for drink water and food pipelines tested by China Sanitation and Antiepidemic Department. 内层材料为食品级聚乙烯,卫生无毒,无二次污染,经国家卫生防疫部门检测,是最理想的饮用水和食品管道。
- ObjectiveDuring the spreading of respiratory epidemic,to change all-air central air conditioning system in order to clean dust and steri lize air,and to reduce the second pollution and cut off the way of spreading vir us. 目的 在呼吸性传染病高发时期 ,改造全空气中央空调系统 ,实现净化、消毒功能 ,减少二次污染 ,以切断病毒的传播途径。
- Based on the BET specific surface determination, it is showed that the prepared photo catalyst TSO has advantageous of large specific surface area, high dispersibility and lower second pollution. 通过BET比表面积测定发现,制得的光催化剂TSO具有比表面积大、分散性高和二次污染小等优点。
- The inner layer is made up of poisonless polytheve with no second pollution,it is an ideal product for drink water and food pipelines tested by China Sanitation and Antiepidemic Department. 内层材料为食品级聚乙烯，卫生无毒，无二次污染，经国家卫生防疫部门检测，是最理想的饮用水和食品管道。
- Microbial flocculant(MBF) is the third generation flocculant developed in late 1980s and has the properties of high efficiency,extensive application range,non-toxicity and without second pollution. 微生物絮凝剂是20世纪80年代后期开发出来的第三代絮凝剂,具有高效、应用范围广、无毒、无二次污染等特点。
- A great deal of second pollutants released during the process of landfill would heavily pollute the water, air and soil around if not treated properly. 垃圾填埋过程中产生的大量二次污染物,如不妥善处理,会对周围的水体、大气和土壤造成严重污染。
- He singled and went to second on a passed ball. 他击出一垒打，再因对方漏接而跑上二垒。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
