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作 者:廖晓燕[1] 程江[1] 皮丕辉[1] 文秀芳[1] 杨卓如[1] 海景[2]
机构地区:[1]华南理工大学化工与能源学院,广州510640 [2]华南环境科学研究所,广州510655
出 处:《材料导报》2008年第4期96-99,115,共5页Materials Reports
基 金:广州市科技计划项目(2006J1-C0511)
摘 要:评述了天然可降解高分子生物膜载体、聚酯类可降解生物膜载体和聚烯烃改性类可降解生物膜载体3类可降解高分子生物膜载体的国内外研究进展及其在水处理中的应用现状。系统分析了各类载体的优缺点,并针对当前该类载体使用过程中存在的不足,指出了相应的解决方法和未来研究的发展方向。天然可降解生物膜载体需进行表面改性以进一步增强载体的机械强度、提高载体的抗废水冲击性能、延长载体的使用寿命;聚酯类可降解生物膜载体需添加多种营养成分并实现这些营养的缓释以平衡微生物生长的需要,同时成本的降低也是实现该类载体推广应用的关键问题之一;将聚烯烃类载体进行改性使其具备可控的降解性、均衡的营养、低廉的价格是可降解生物膜载体今后的重点发展方向之一。The current status and development of three kinds of degradable polymer biofilm carriers for wastewater treatment are reviewed in this paper, including natural polymeric bio-degradable carriers, polyester bio-degradable carriers and modified polyolefin bio-degradable carriers. The advantages and disadvantages of current carriers are summarized and suggestions are provided to solve the problem of the current carriers. The prospective trend of these carriers is also forseen in this paper. Certain surface modification is needed to enhance the mechanical strength of the natural polymeric bio-degradable carriers. As to bio-degradable polyester carriers, multi-nutrition should be added to balance the demand of microorganism. Moreover, the reduction of cost is also significant for the application of the polyester carriers. It is considered that exploiting the modified polyolefin bio-degradable carriers with controllable degradability, balanced nutrition and high performance-price ratio is the future development direction.
分 类 号:TQ610.48[化学工程—精细化工] X703[环境科学与工程—环境工程]
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