【摘要】 介绍了目前中国地表水的污染概况,指出地表水污染情况依然不容乐观,主要污染指标为总氮和总磷,修复受污染地表水的主要方法为生物法,论述了生物技术中的生物膜法处理地表水的原理,总结并分析了国内外相关生物膜法处理技术及其优缺点,并列举了相关应用实例,最后根据国外河道整治的发展历程,对该技术的发展趋势作了展望,因生物膜-生态联合治理技术综合了生态系统方法及生物净化技术的优点,认为生物膜-生态联合治理技术将是今后地表水处理技术发展的一大趋势。更多还原

【Abstract】 The pollution state of surface water in China at present is introduced,and it’s still poor.The main contamination indexes are TN and TP.The primary method to recover contaminated surface water is the biological treatment.The principle of treating surface water by bio-film technology is expounded.The bio-film technology and its advantages and disadvantages at home and abroad are summarized and analyzed.Some related cases are enumerated.Finally,the trend of the water treatment development of this technology is forecast according to the experience of foreign river regulation.Because the bio-film technology combined with the ecological method integrates the advantages of each other,it is considered as the tendency of surface water treatment development.更多还原