英语翻译Effect of PAC addition on MBR process for drinking water

英语翻译
Effect of PAC addition on MBR process for drinking water treatment
Abstract
The continual pollution of the water supply in China has resulted in shortage of sufficiently clean drinking water,which is essential to this nation’s quality of life in the 21st century.In this paper,an innovative way of evaluating the removal of micro-pollutants from lake water was studied,using MBR and MBR-PAC (powdered activated carbon) hybrid processes.Chemical analyses showed that the quality of treated water has the potential to comply with the drinking water regulations of China.In this experiment,the accumulation of inert compounds in the bioreactor was measured,and the concentration of soluble organic pollutants in the mixed liquor was recorded.Based on this data,both Am (organics accumulation factor in the mixed liquor) and Sm (membrane separation/rejection coefficient) were proposed to describe the removal of organic pollutants during the MBR process.Each has a close relationship with the removal efficiency of organic pollutants (η).As such,the η contribution by biological treatment (or combined with PAC adsorption) in the bioreactor was calculated through establishing a mass balance equation.The membrane fouling conditions were also investigated.The study resulted in the conclusion that the addition of PAC enhanced the microbial activity in the bioreactor,contributed to the increase of the η and was also found to decrease the membrane fouling.
Introduction
Membrane technology was first introduced to drinking water treatment in 1985.With the resulting high quality of treated water,membrane technology has been regarded as one of the most promising processes.Membrane technology used in drinking water production could roughly be divided into two directions.The first direction includes nanofiltration (NF) and reverse osmosis (RO) technologies.These two processes are widely used in developed countries.Although,their capability in producing high quality water is being constantly reviewed,the economical feasibility for developing countries is still prohibitive because of the significant hydrostatic pressure requirements of the process,and the cost of the membrane itself.The second direction is the unit UF,or hybrid microfiltration/ultra-filtration (MF/UF) systems in drinking water treatment.
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MBR工艺对饮用水处理的投加粉末活性炭
Abstract摘要
The continual pollution of the water supply in China has resulted in shortage of sufficiently clean drinking water,which is essential to this nation's quality of life in the 21st century.在中国的持续供水污染导致了足够清洁的饮用水,这是不可或缺的以本民族的生活质量在21世纪的短缺.In this paper,an innovative way of evaluating the removal of micro-pollutants from lake water was studied,using MBR and MBR-PAC (powdered activated carbon) hybrid processes.在此提出了一种评价的微水湖污染物去除创新的方式进行了研究,采用膜生物反应器和MBR - PAC的（粉状活性炭）混合过程.Chemical analyses showed that the quality of treated water has the potential to comply with the drinking water regulations of China.化学分析表明,处理后水质有可能符合中国饮用水规定.In this experiment,the accumulation of inert compounds in the bioreactor was measured,and the concentration of soluble organic pollutants in the mixed liquor was recorded.在这个实验中,生物反应器中的惰性物质的积累进行了测量,并在混合酒的水溶性有机污染物浓度的记录.Based on this data,both Am (organics accumulation factor in the mixed liquor) and Sm (membrane separation/rejection coefficient) were proposed to describe the removal of organic pollutants during the MBR process.根据这些数据,调幅和Sm（膜分离/拒绝系数）（有机物在混合酒积累系数）来描述,提出了在MBR工艺对有机污染物的去除.Each has a close relationship with the removal efficiency of organic pollutants (η).每个人都有一个与（η）的有机污染物去除效率的密切关系.As such,the η contribution by biological treatment (or combined with PAC adsorption) in the bioreactor was calculated through establishing a mass balance equation.因此,通过生物处理η贡献的生物反应器（或与PAC吸附相结合）,计算通过建立质量平衡方程.The membrane fouling conditions were also investigated.膜污染情况进行了研究.The study resulted in the conclusion that the addition of PAC enhanced the microbial activity in the bioreactor,contributed to the increase of the η and was also found to decrease the membrane fouling.这项研究结果是结论,即投加粉末活性炭强化生物反应器中的微生物的活动,促成了η增加,还发现,以减少膜污染.
Introduction简介
Membrane technology was first introduced to drinking water treatment in 1985.膜技术首次引入到饮用水处理于1985年.With the resulting high quality of treated water,membrane technology has been regarded as one of the most promising processes.由此造成的净化水质量高,膜技术已被视为最有前途的工艺之一.Membrane technology used in drinking water production could roughly be divided into two directions.膜技术在饮用水生产中使用可大致分为两个方向.The first direction includes nanofiltration (NF) and reverse osmosis (RO) technologies.第一个方向包括纳滤（NF）和（反渗透）技术反渗透.These two processes are widely used in developed countries.这两个过程是在发达国家广泛使用.Although,their capability in producing high quality water is being constantly reviewed,the economical feasibility for developing countries is still prohibitive because of the significant hydrostatic pressure requirements of the process,and the cost of the membrane itself.虽然,他们在生产高品质水能力正在不断审查,对发展中国家的经济可行性,因为仍然是这一进程的重要静水压力的要求太高,以及膜本身的成本.The second direction is the unit UF,or hybrid microfiltration/ultra-filtration (MF/UF) systems in drinking water treatment.第二个方向是单位用友,或混合微滤/超滤（中频/用友）在饮用水处理系统.
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