Optimization for simultaneous removal of NH3-N and COD from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by RSM method

The present work demonstrated preparation of coal-based electrode materials (CEM)-derived low-rank coal for simultaneous removal of ammonia nitrogen (NH3-N) and chemical oxygen demand (COD) from coking wastewater by a three-dimensional electrode system (3DES). The influence of important parameters i...

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Autores principales:	Su Ting, Gao Wenwen, Xing Xiangdong, Lan Xinzhe, Song Yonghui
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	nh3-n and cod simultaneous removal rate three-dimensional electrode system coal-based electrode materials response surface method Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/271c09b2f20b43afbf8b7fdc1c134e8f
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spelling	oai:doaj.org-article:271c09b2f20b43afbf8b7fdc1c134e8f2021-12-05T14:10:50ZOptimization for simultaneous removal of NH3-N and COD from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by RSM method2191-955010.1515/gps-2021-0072https://doaj.org/article/271c09b2f20b43afbf8b7fdc1c134e8f2021-11-01T00:00:00Zhttps://doi.org/10.1515/gps-2021-0072https://doaj.org/toc/2191-9550The present work demonstrated preparation of coal-based electrode materials (CEM)-derived low-rank coal for simultaneous removal of ammonia nitrogen (NH3-N) and chemical oxygen demand (COD) from coking wastewater by a three-dimensional electrode system (3DES). The influence of important parameters in 3DES such as processing time, applied voltage, electrode plate spacing, mass of commercially activated carbon (CAC), and initial pH were investigated. Based on the central composite design, the response surface method (RSM) was employed in order to optimize the variable parameters in removal process of pollutants. From the analysis of RSM, the optimum conditions for 3DES were 4.5 h of processing time, 5.5 V of applied voltage, 17 mm electrode plate spacing, 4.5 g CAC, and pH of 3 with higher simultaneous removal rate of COD (74.20%) and NH3-N (51.48%). Besides, the content of N element (4.9%) and N containing groups were traced by SEM-EDS and FTIR analysis in order to verify the removal effect. The experiment results showed the capability of CEM for electrode system removal of pollutants from coking wastewater and obtained considerable simultaneous removal rate of NH3-N and COD.Su TingGao WenwenXing XiangdongLan XinzheSong YonghuiDe Gruyterarticlenh3-n and codsimultaneous removal ratethree-dimensional electrode systemcoal-based electrode materialsresponse surface methodChemistryQD1-999ENGreen Processing and Synthesis, Vol 10, Iss 1, Pp 756-767 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	nh3-n and cod simultaneous removal rate three-dimensional electrode system coal-based electrode materials response surface method Chemistry QD1-999
spellingShingle	nh3-n and cod simultaneous removal rate three-dimensional electrode system coal-based electrode materials response surface method Chemistry QD1-999 Su Ting Gao Wenwen Xing Xiangdong Lan Xinzhe Song Yonghui Optimization for simultaneous removal of NH3-N and COD from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by RSM method
description	The present work demonstrated preparation of coal-based electrode materials (CEM)-derived low-rank coal for simultaneous removal of ammonia nitrogen (NH3-N) and chemical oxygen demand (COD) from coking wastewater by a three-dimensional electrode system (3DES). The influence of important parameters in 3DES such as processing time, applied voltage, electrode plate spacing, mass of commercially activated carbon (CAC), and initial pH were investigated. Based on the central composite design, the response surface method (RSM) was employed in order to optimize the variable parameters in removal process of pollutants. From the analysis of RSM, the optimum conditions for 3DES were 4.5 h of processing time, 5.5 V of applied voltage, 17 mm electrode plate spacing, 4.5 g CAC, and pH of 3 with higher simultaneous removal rate of COD (74.20%) and NH3-N (51.48%). Besides, the content of N element (4.9%) and N containing groups were traced by SEM-EDS and FTIR analysis in order to verify the removal effect. The experiment results showed the capability of CEM for electrode system removal of pollutants from coking wastewater and obtained considerable simultaneous removal rate of NH3-N and COD.
format	article
author	Su Ting Gao Wenwen Xing Xiangdong Lan Xinzhe Song Yonghui
author_facet	Su Ting Gao Wenwen Xing Xiangdong Lan Xinzhe Song Yonghui
author_sort	Su Ting
title	Optimization for simultaneous removal of NH3-N and COD from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by RSM method
title_short	Optimization for simultaneous removal of NH3-N and COD from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by RSM method
title_full	Optimization for simultaneous removal of NH3-N and COD from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by RSM method
title_fullStr	Optimization for simultaneous removal of NH3-N and COD from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by RSM method
title_full_unstemmed	Optimization for simultaneous removal of NH3-N and COD from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by RSM method
title_sort	optimization for simultaneous removal of nh3-n and cod from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by rsm method
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/271c09b2f20b43afbf8b7fdc1c134e8f
work_keys_str_mv	AT suting optimizationforsimultaneousremovalofnh3nandcodfromcokingwastewaterviaathreedimensionalelectrodesystemwithcoalbasedelectrodematerialsbyrsmmethod AT gaowenwen optimizationforsimultaneousremovalofnh3nandcodfromcokingwastewaterviaathreedimensionalelectrodesystemwithcoalbasedelectrodematerialsbyrsmmethod AT xingxiangdong optimizationforsimultaneousremovalofnh3nandcodfromcokingwastewaterviaathreedimensionalelectrodesystemwithcoalbasedelectrodematerialsbyrsmmethod AT lanxinzhe optimizationforsimultaneousremovalofnh3nandcodfromcokingwastewaterviaathreedimensionalelectrodesystemwithcoalbasedelectrodematerialsbyrsmmethod AT songyonghui optimizationforsimultaneousremovalofnh3nandcodfromcokingwastewaterviaathreedimensionalelectrodesystemwithcoalbasedelectrodematerialsbyrsmmethod
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Optimization for simultaneous removal of NH3-N and COD from coking wastewater via a three-dimensional electrode system with coal-based electrode materials by RSM method

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