PVA固定化微生物方法及应用

 固定化微生物技术具有提高相对微生物浓度、增强生物污水处理效率等优势。本文系统阐述了PVA（聚乙烯醇）固定化微生物技术的特点与优势，分析了PVA包埋微生物的方法，指出了常用包埋方法（物理交联法、化学交联方法）在PVA载体应用过程中的弊端，并提出了相应的改进和优化技术。文章深入探讨了PVA固定化微生物技术在水处理过程中的应用，分析了该方法在水处理应用过程中的优势与不足，得出建立生物活性较好、机械强度较高、水溶膨胀性较低、操作相对简单的固定化优化技术的必要性和重要性，为水处理技术的可持续发展提供新的发展方向。

Methods and application of immobilized microorganism in PVA

The immobilized microorganism technology is advantageous in increasing the concentration of microorganism and improving the efficiency of the wastewater treatment in solutions. This paper reviews the characteristics and the advantages of the immobilized microorganism in the PVA and the methods of the immobilization. The shortages of common methods (the physical crosslinking method and the chemical crosslinking method) are pointed out and relevant optimization techniques are proposed. The applications of the immobilized microorganism of the PVA in the wastewater treatment are discussed, as well as the advantages and disadvantages of the PVA in this area. It is important for the sustainability of the wastewater treatment to develop a simple immobilized microorganism technology with good microbial activity, high mechanical strength, and water-absorbing and swelling behavior.