PMID- 31530251 OWN - NLM STAT- MEDLINE DCOM- 20210323 LR - 20210323 IS - 1479-487X (Electronic) IS - 0959-3330 (Linking) VI - 42 IP - 9 DP - 2021 Apr TI - Degradation of 2,4-dichlorophenol contaminated soil by ultrasound-enhanced laccase. PG - 1428-1437 LID - 10.1080/09593330.2019.1669723 [doi] AB - In this paper, ultrasound was used to enhance the degradation effect of laccase for 2,4-dichlorophenol (2,4-DCP) in soil. The degradation effect and mechanism of the ultrasound-enhanced laccase were investigated. From the results, the degradation rate of 2,4-DCP can reach as high as 51.7% under the following conditions: reaction period was 21 h, pH = 5.5, ultrasound power was 240 W, duty cycle was 50%, and moisture content was 50%. Using the ultrasound-enhanced laccase, the degradation rate of 2,4-DCP was significantly higher than that using only laccase or only ultrasound. In addition, when ultrasound was used, the optimum pH for the degradation of 2,4-DCP using laccase was increased, making the degradation technology more practical. The analysis results from high-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) revealed the degradation pathway of 2,4-DCP in soil: first, 2,4-DCP gradually became phenol through dechlorination, then the small molecular organic matter was generated from the hydroxyl radical or laccase reaction. FAU - Zhuang, Mengjuan AU - Zhuang M AUID- ORCID: 0000-0001-7900-5426 AD - College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei, People's Republic of China. AD - Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Hubei, People's Republic of China. FAU - Ren, Dajun AU - Ren D AUID- ORCID: 0000-0003-0752-4184 AD - College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei, People's Republic of China. AD - Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Hubei, People's Republic of China. FAU - Guo, Huiwen AU - Guo H AD - College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei, People's Republic of China. AD - Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Hubei, People's Republic of China. FAU - Wang, Zhaobo AU - Wang Z AUID- ORCID: 0000-0002-8949-1373 AD - College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei, People's Republic of China. AD - Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Hubei, People's Republic of China. FAU - Zhang, Shuqin AU - Zhang S AD - College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei, People's Republic of China. AD - Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Hubei, People's Republic of China. FAU - Zhang, Xiaoqing AU - Zhang X AD - College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei, People's Republic of China. AD - Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Hubei, People's Republic of China. FAU - Gong, Xiangyi AU - Gong X AD - College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei, People's Republic of China. AD - Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Hubei, People's Republic of China. LA - eng PT - Journal Article DEP - 20190927 PL - England TA - Environ Technol JT - Environmental technology JID - 9884939 RN - 0 (Chlorophenols) RN - 0 (Phenols) RN - 0 (Soil) RN - EC 1.10.3.2 (Laccase) RN - R669TG1950 (2,4-dichlorophenol) SB - IM MH - *Chlorophenols MH - *Laccase MH - Phenols MH - Soil OTO - NOTNLM OT - 2,4-DCP OT - Laccase OT - soil OT - ultrasound-enhanced laccase EDAT- 2019/09/19 06:00 MHDA- 2021/03/24 06:00 CRDT- 2019/09/19 06:00 PHST- 2019/09/19 06:00 [pubmed] PHST- 2021/03/24 06:00 [medline] PHST- 2019/09/19 06:00 [entrez] AID - 10.1080/09593330.2019.1669723 [doi] PST - ppublish SO - Environ Technol. 2021 Apr;42(9):1428-1437. doi: 10.1080/09593330.2019.1669723. Epub 2019 Sep 27.