[4] [4] GILBERT K M, BLOSSOM S J. Trichloroethylene: toxicity and health risks［M］. London: Springer London, 2014.

[5] [5] SONG J X, ZHAO Q, GUO J, et al. The microbial community responsible for dechlorination and benzene ring opening during anaerobic degradation of 2,4,6-trichlorophenol［J］. Science of the Total Environment, 2019, 651: 1368-1376.

[6] [6] TSENG H H, SU J G, LIANG C J. Synthesis of granular activated carbon/zero valent iron composites for simultaneous adsorption/dechlorination of trichloroethylene［J］. Journal of Hazardous Materials, 2011, 192(2): 500-506.

[9] [9] WANG B, LI Q, KANG J F, et al. Preparation and characterization of polypyrrole coating on fly ash cenospheres: role of the organosilane treatment［J］. Journal of Physics D: Applied Physics, 2011, 44(41): 415301.

[10] [10] QUAN Y H, CHEN L. Removal of methylene blue in aqueous solution by microwave and fly ash combined process［C］//Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017). Paris: Atlantis Press, 2017, 129: 803-806.

[12] [12] ILERI B, SANLIYUKSEL Y D. Metal removal from acid mine lake using ultrasound-assisted modified fly ash at different frequencies［J］. Environmental Monitoring and Assessment, 2020, 192(3): 185.

[19] [19] HSU T C, YU C C, YEH C M. Adsorption of Cu2+ from water using raw and modified coal fly ashes［J］. Fuel, 2008, 87(7): 1355-1359.

[20] [20] BARTON R R. Response surface methodology［J］. Wiley Interdisciplinary Reviews Computational Statistics, 1999, 2(2): 128-149.

[21] [21] RICOU-HOEFFER P, LECUYER I, CLOIREC P L. Experimental design methodology applied to adsorption of metallic ions onto fly ash［J］. Water Research, 2001, 35(4): 965-976.

[23] [23] GAO H, LUO F, WEN Q L, et al. Effect of preparation conditions on mechanical, dielectric and microwave absorption properties of SiC fiber/mullite matrix composite［J］. Ceramics International, 2019, 45(9): 11625-11632.

[25] [25] MISHRA S B, LANGWENYA S P, MAMBA B B, et al. Study on surface morphology and physicochemical properties of raw and activated South African coal and coal fly ash［J］. Physics and Chemistry of the Earth, Parts A/B/C, 2010, 35(13/14): 811-814.