CAJ | 학술논문

五氯苯酚(PCP)是一种曾被广泛使用的木材防腐剂、杀菌剂和除草剂,目前已经造成了世界范围内土壤和水体的污染.本文针对筛选的4种优势菌株NERCDT-A、NERCDT-B、NERCDT-C、NERCDT-D,通过正交实验考察不同固定化材料,溶液pH值和生物接种量,确定出适宜的菌株固定化包埋条件.分别用游离单株优势菌和固定单株优势茵对PCP进行降解实验研究,对比结果表明固定化的菌株表现出了较好的降解效果.通过固定化菌株对PCP的降解动力学研究,确定不同固定化菌株的Monod参数.
오록분분(PCP)시일충증피엄범사용적목재방부제、살균제화제초제,목전이경조성료세계범위내토양화수체적오염.본문침대사선적4충우세균주NERCDT-A、NERCDT-B、NERCDT-C、NERCDT-D,통과정교실험고찰불동고정화재료,용액pH치화생물접충량,학정출괄의적균주고정화포매조건.분별용유리단주우세균화고정단주우세인대PCP진행강해실험연구,대비결과표명고정화적균주표현출료교호적강해효과.통과고정화균주대PCP적강해동역학연구,학정불동고정화균주적Monod삼수.
Pentachlorophenol (PCP) is one of persistent organic pollutants,which is widely used as wood preservative,fungicide and herbicide.Because of its toxicity and widespread distribution,it has worldwide contaminated soil,surface water and underground water.The immobilization conditions for the PCP degradation bacteria NERCDT-A,NERCDT-B,NERCDT-C and NERCDT-D were investigated with the orthogonal method including immobilization material selection,pH of solution and amount of inoculation.The immobilized bacteria showed higher degradation efficiency for PCP than the bacteria in solution.The Monod parameters of different immobilized bacteria have been obtained from the degradation kinetics.