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Removal of phenols, thiocyanate and ammonium from coal gasification wastewater using moving bed biofilm reactor

Li, Hui-Qiang ; Han, Hong-Jun ; Du, Mao-an ; Wang, Wei

Bioresource Technology, April 2011, Vol.102(7), pp.4667-4673 [Periódico revisado por pares]

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  • Título:
    Removal of phenols, thiocyanate and ammonium from coal gasification wastewater using moving bed biofilm reactor
  • Autor: Li, Hui-Qiang ; Han, Hong-Jun ; Du, Mao-an ; Wang, Wei
  • Assuntos: Coal Gasification Wastewater ; Phenols ; Thiocyanate ; Ammonium ; Moving Bed Biofilm Reactor ; Agriculture ; Engineering ; Chemistry
  • É parte de: Bioresource Technology, April 2011, Vol.102(7), pp.4667-4673
  • Descrição: ► Treatment of coal gasification wastewater adopts the MBBR process. ► High nitrification ratio is achieved although phenols remain in the effluent. ► Decreasing HRT affects MBBR action more badly than raising influent pollutant concentration. ► We investigate the performance of suspended growth biomass in the MBBR. A laboratory-scale moving bed biofilm reactor (MBBR) with a volume of 4 L was used to study the biodegradation of coal gasification wastewater. Maximum removal efficiencies of 81%, 89%, 94% and 93% were obtained for COD, phenols, SCN and -N, respectively. -N accumulation induced increase of effluent COD concentration when the hydraulic residence time (HRT) decreased. Phenols removal was not affected when the HRT decreased from 48 to 32 h. Effluent SCN and -N concentration increased with the decrease of the HRT,...
  • Idioma: Inglês

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