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2007•Hebei Journal of Industrial Science and TechnologyRequires access

Study on toluene-oxidized wastewater treatment with UASB reactor

Feng Han

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Abstract

Wastewater from oxidizing toluene is treated by using UASB reactor and seeded with granular sludge.When the UASB influent ρ(COD) is 6 000 mg/L,and the volumetric COD loading rate reaches 6 kg/(m3·d),COD removal rate reaches 84%,and the effluent COD is 853～985 mg/L.The optimum conditions are that the pH value of influent is 5～6,the influent ρ(COD) is 5 000～6 000 mg/L,HRT is 24 h and the volumetric COD loading rate is 5～6 kg/(m3·d).The result is that through cultivating the anaerobic sludge and controlling performance parameters,inhabiting effect of toluene on anaerobic digestion is almost elimilnated.

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What this paper is about

Wastewater from oxidizing toluene is treated by using UASB reactor and seeded with granular sludge.When the UASB influent ρ(COD) is 6 000 mg/L,and the volumetric COD loading rate reaches 6 kg/(m3·d),COD removal rate reaches 84%,and the effluent COD is 853～985 mg/L.The optimum conditions are that the pH value of influent is 5～6,the influent ρ(COD) is 5 000～6 000 mg/L,HRT is 24 h and the volumetric COD loading rate is 5～6 kg/(m3·d).The result is that through cultivating the anaerobic sludge and controlling performance parameters,inhabiting effect of toluene on anaerobic digestion is almost elimilnated.

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Available abstract

Wastewater from oxidizing toluene is treated by using UASB reactor and seeded with granular sludge.When the UASB influent ρ(COD) is 6 000 mg/L,and the volumetric COD loading rate reaches 6 kg/(m3·d),COD removal rate reaches 84%,and the effluent COD is 853～985 mg/L.The optimum conditions are that the pH value of influent is 5～6,the influent ρ(COD) is 5 000～6 000 mg/L,HRT is 24 h and the volumetric COD loading rate is 5～6 kg/(m3·d).The result is that through cultivating the anaerobic sludge and controlling performance parameters,inhabiting effect of toluene on anaerobic digestion is almost elimilnated.

Key concepts: Effluent, Toluene, Wastewater, Pulp and paper industry, Oxidizing agent, Chemistry, Anaerobic digestion, Bioreactor

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