英语翻译造纸废水排放量大、污染物浓度高,是工业污染治理的重点和难点.中国水体污染和水资源短缺的现状将在未来十年内进一步加

英语翻译
造纸废水排放量大、污染物浓度高,是工业污染治理的重点和难点.中国水体污染和水资源短缺的现状将在未来十年内进一步加剧.新的法规的制定对造纸业用水及排污都是一个挑战.目前国内造纸厂一般采用絮凝沉淀法对废水进行处理,将两种或两种以上絮凝剂按一定比例投加于污水中可以提高处理的效果,其中研究和应用较多的有壳聚糖絮凝剂[1]、淀粉改性絮凝剂[2]、聚合氯化铝、聚丙烯酰胺和微生物絮凝剂[3]等,聚丙烯酰胺(PAM)为常用的助凝剂.另外也有采用聚硅酸铝絮凝剂处理非化学法制浆造纸废水,虽然上述处理技术在造纸业已经相对成熟,但是仍然存在着排污色度较大、CODcr相对较高等问题.文中通过对絮凝沉淀技术的研究,试图找出技术可行、效果明显、经济合理的处理方法,能在经济可承受范围内使得造纸废水达标排放.

Papermaking wastewater discharge a large amount, high concentration of pollutants, is the difficulty and key industrial pollution control. The status quo of China's water pollution and water shortage will further intensify in the next ten years. Develop new regulations will be a challenge for the paper industry water and sewage. At present, the domestic paper mills using flocculation effluent of sedimentation, two or more than two kinds of flocculants according to a certain proportion and added sewage can improve the treatment effect, the research and application of chitosan flocculant [1], modified starch flocculant [2], polymerization aluminum chloride, polyacrylamide and microbial flocculant [3], polyacrylamide (PAM) as coagulant used. There is also the polymer processing non chemical pulping and papermaking wastewater of aluminum silicate flocculant, although the processing technology in the paper industry has been relatively mature, but there are still large sewage chroma, CODcr is relatively high. Study on the flocculation precipitation technology through, trying to find out the feasible technology, effect is obvious, the economic and reasonable treatment method, can in the affordable range makes the discharged wastewater.
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再问： 在冶金、石化、造纸、钢铁、纺织、印染、食品、酿造等多种行业的工业处理领域，絮凝沉淀技术约占55%~75%的市场份额。而且，絮凝沉淀技术反应迅速、操作简单、易于控制、污水净化效果较好。本文旨在对絮凝沉淀法处理造纸废水技术做出了介绍，综合论述了造纸废水处理技术的发展概况，阐述了降低废水污染指标方面的研究和新进展，。关键词 造纸废水的性质 絮凝沉淀技术 净化效果 发展概况
再答： In the field of metallurgy, petrochemical industrial processing, paper making, iron and steel, textile, printing and dyeing, food, brewing and other industries, flocculation technology about 55%~75% market share. Moreover, flocculation technology rapid response, simple operation, easy control, sewage purification effect is better. This paper aims to precipitation on the flocculation treatment of papermaking wastewater technology introduced, discussed the development of papermaking wastewater treatment technology, decreasing and new progress in the research of wastewater pollution indicators,. Effect of development of purification technology of papermaking wastewater flocculation sedimentation properties of keywords 望采纳