Synergic Adsorption-Biodegradation by an Advanced Carrier for Enhanced   Removal of High-Strength Nitrogen and Refractory Organics

doi:10.1021/acsami.7b01251

CORC > 北京大学 > 环境科学与工程学院

	Synergic Adsorption-Biodegradation by an Advanced Carrier for Enhanced Removal of High-Strength Nitrogen and Refractory Organics
	Ahmad, Muhammad ; Liu, Sitong ; Mahmood, Nasir ; Mahmood, Asif ; Ali, Muhammad ; Zheng, Maosheng ; Ni, Jinren
刊名	ACS APPLIED MATERIALS & INTERFACES
	2017
关键词	iron oxide quinoline adsorption-biodegradation anammox-AOB coking wastewater COKING WASTE-WATER POLYCYCLIC AROMATIC-HYDROCARBONS ZERO-VALENT IRON HEAVY-METAL IONS PHYSICOCHEMICAL TREATMENT AQUEOUS-SOLUTIONS ANAEROBIC FILTER ACTIVATED-SLUDGE METHYLENE-BLUE MAGNETIC-FIELD
DOI	10.1021/acsami.7b01251
英文摘要	Coking wastewater contains not only high-strength nitrogen but also toxic biorefractory organics. This study presents simultaneous removal of high-strength quinoline, carbon, and ammonium in coking wastewater by immobilized bacterial communities composed of a heterotrophic strain Pseudomonas sp. QG6 (hereafter referred as QG6), ammonia-oxidizing bacteria (AOB), and anaerobic ammonium oxidation bacteria (anammox). The bacterial immobilization was implemented with the help of a self-designed porous cubic carrier that created structured micro environments including an inner layer adapted for anaerobic bacteria, a middle layer suitable for coaggregation of certain aerobic and anaerobic bacteria, and an outer layer for heterotrophic bacteria. By coating functional polyurethane foam (FPUF) with iron oxide nanoparticles (IONPs), the biocarrier (IONPs-FPUF) could provide a good outer-layer barrier for absorption and selective treatment of aromatic compounds by QG6, offer a conducive environment for anammox in the inner layer, and provide a mutualistic environment for AOB in the middle layer. Consequently, simultaneous nitrification and denitrification were reached with the significant removal of up to 322 mg L-1 (98%) NH4, 311 mg L-1 (99%) NO2 and 633 mg (97%) total nitrogen (8 mg L-1 averaged NO3 concentration was recorded in the effluent), accompanied by an efficient removal of chemical oxygen demand by 3286 mg L-1 (98%) and 350 mg L-1 (100%) quinoline. This study provides an alternative way to promote synergic adsorption and biodegradation with the help of a modified biocarrier that has great potential for treatment of wastewater containing high-strength carbon, toxic organic pollutants, and nitrogen.; National Science Foundation of China [51539001]; SCI(E); ARTICLE; 15; 13188-13200; 9
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473948]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Ahmad, Muhammad,Liu, Sitong,Mahmood, Nasir,et al. Synergic Adsorption-Biodegradation by an Advanced Carrier for Enhanced Removal of High-Strength Nitrogen and Refractory Organics[J]. ACS APPLIED MATERIALS & INTERFACES,2017.
APA	Ahmad, Muhammad.,Liu, Sitong.,Mahmood, Nasir.,Mahmood, Asif.,Ali, Muhammad.,...&Ni, Jinren.(2017).Synergic Adsorption-Biodegradation by an Advanced Carrier for Enhanced Removal of High-Strength Nitrogen and Refractory Organics.ACS APPLIED MATERIALS & INTERFACES.
MLA	Ahmad, Muhammad,et al."Synergic Adsorption-Biodegradation by an Advanced Carrier for Enhanced Removal of High-Strength Nitrogen and Refractory Organics".ACS APPLIED MATERIALS & INTERFACES (2017).