Removal of ammonia nitrogen from wastewater using modified activated sludge

• Autorzy: Yunnen C. , Changshi X. , Jinxia N.
• Języki publikacji: EN

Abstrakty

EN

The removal of medium-low N-NH4 on activated sludge modified by ferric hydroxide suspension (FHMAS) in batch studies was conducted as a function of pH, concentration of modifier, contact time, and initial concentration. The kinetics study showed that the sorption behavior fit well the pseudo second-order equation. An adsorption isotherms study indicated that FHMAS had a higher adsorption capacity for N-NH4 than other adsorbents. The mechanism of removal of N-NH4 by FHMAS was coexistence of adsorption and cation exchange. Initial N-NH4 concentration being 116 mg/l in metallurgical wastewater was reduced to 11 mg/l after adsorption treatment.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2016
• Tom: 25
• Numer: 1
• Opis fizyczny: p.419-425,fig.,ref.

Twórcy

autor

Yunnen C.

• Jiangxi Key Laboratory of Mining and Metallurgy Environmental Pollution Control, School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Hongqi Ave. 86, Ganzhou Jiangxi 341000, P.R. China

autor

Changshi X.

• Jiangxi Key Laboratory of Mining and Metallurgy Environmental Pollution Control, School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Hongqi Ave. 86, Ganzhou Jiangxi 341000, P.R. China

autor

Jinxia N.

• Jiangxi Key Laboratory of Mining and Metallurgy Environmental Pollution Control, School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Hongqi Ave. 86, Ganzhou Jiangxi 341000, P.R. China

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Identyfikatory

DOI

10.15244/pjoes/60859