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2016 | 25 | 1 |
Tytuł artykułu

Removal of ammonia nitrogen from wastewater using modified activated sludge

Warianty tytułu
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.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
25
Numer
1
Opis fizyczny
p.419-425,fig.,ref.
Twórcy
autor
  • 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
  • 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
  • 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
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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