城市河流水质原位净化技术综述

城市河流普遍面临污染的困境，各种水体净化技术应运而生。城市河流周围用地紧张的特点决定了水质原位净化技术具有较大的优势，该技术在国内外城市河流水质净化中日益得到广泛应用。按照净化机理，水质原位净化技术可划分为物理方法、化学方法、生物方法及组合方法，并分别对水质原位净化技术在国内外的研究与应用进展进行了系统详细地阐述，以期为相关领域的人员把握该方向的研究动态提供参考。最后对各方法优劣势进行了比较分析，并指出原位净化技术在研究与应用上存在的问题。

A review on in-situ water purifying technologies for urban rivers

At present,the urban rivers are generally facing the adverse conditions of pollution,for which various water purifying technologies are then being developed.Among all the technologies,the in-situ water purifying technologies are more advantageous,as the land around the urban river is usually quite limited.This kind of technology is now increasingly and widely applied to the water purification of urban river at home and abroad.Based on the purification mechanism concerned,the in-situ water purifying technolo...