alexa Landfill leachate treatment with a novel process: anaerobic ammonium oxidation (Anammox) combined with soil infiltration system.
Environmental Sciences

Environmental Sciences

International Journal of Waste Resources

Author(s): Liang Z, Liu J

Abstract Share this page

Abstract A novel combined process was proposed to treat municipal landfill leachate with high concentrations of ammonium and organics. This process consisted of a partial nitritation reactor (PNR), an anaerobic ammonium oxidation (Anammox) reactor (AR) and two underground soil infiltration systems (USIS-1 and USIS-2). Based on the optimum operating conditions obtained from batch tests of individual unit, the combined process was continuously operated on a bench scale for 166 days. Partial nitritation was performed in a fixed bio-film reactor (PNR, working volume=12 L). Ammonium nitrogen-loading rate (Nv) and DO were combined to monitor partial nitritation, and at T=30+/-1 degrees C, Nv=0.27-1.2 kg/(m3.d), DO=0.8-2.3 mg/L, the ratios of nitrite nitrogen (NO2--N) to ammonium nitrogen (NH4+-N) were successfully kept close to 1.0-1.3 in the effluent. Nitrate nitrogen (NO3--N) less than 43 mg/L was observed. The effluent of PNR was ideally suited as influent of AR. Sixty-nine percent CODcr from the raw leachate was degraded in the PNR. Anammox was carried out in a fixed bio-film reactor (AR, working volume=36 L). At T=30+/-1 degrees C, Nv=0.06-0.11 kg/(m3.d), about 60\% NH4+-N and 64\% NO2--N in the influent of AR were simultaneously removed. Inhibition of high-strength NO2--N (up to 1011 mg/L) should be responsible for the low removal rate of nitrogen. About 35\% aquatic humic substance (AHS) was degraded in the AR. With the same working volume (200 L), USIS-1 and USIS-2 were alternately performed to treat the effluent from AR at one cycle of about 30 days. At hydraulic loading rate (HLR)=0.02-0.04 m3/m3.d, pollutant loading rates (PLR)=NH4+-N
  • DOI: 10.1016/j.jhazmat.2007.05.068
  • This article was published in J Hazard Mater and referenced in International Journal of Waste Resources

    Relevant Expert PPTs

    Relevant Speaker PPTs

    Recommended Conferences

    Peer Reviewed Journals
     
    Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
    International Conferences 2017-18
     
    Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

    Contact Us

    Agri, Food, Aqua and Veterinary Science Journals

    Dr. Krish

    [email protected]

    1-702-714-7001 Extn: 9040

    Clinical and Biochemistry Journals

    Datta A

    [email protected]

    1-702-714-7001Extn: 9037

    Business & Management Journals

    Ronald

    [email protected]

    1-702-714-7001Extn: 9042

    Chemical Engineering and Chemistry Journals

    Gabriel Shaw

    [email protected]

    1-702-714-7001 Extn: 9040

    Earth & Environmental Sciences

    Katie Wilson

    [email protected]

    1-702-714-7001Extn: 9042

    Engineering Journals

    James Franklin

    [email protected]

    1-702-714-7001Extn: 9042

    General Science and Health care Journals

    Andrea Jason

    [email protected]

    1-702-714-7001Extn: 9043

    Genetics and Molecular Biology Journals

    Anna Melissa

    [email protected]

    1-702-714-7001 Extn: 9006

    Immunology & Microbiology Journals

    David Gorantl

    [email protected]

    1-702-714-7001Extn: 9014

    Informatics Journals

    Stephanie Skinner

    [email protected]

    1-702-714-7001Extn: 9039

    Material Sciences Journals

    Rachle Green

    [email protected]

    1-702-714-7001Extn: 9039

    Mathematics and Physics Journals

    Jim Willison

    [email protected]

    1-702-714-7001 Extn: 9042

    Medical Journals

    Nimmi Anna

    [email protected]

    1-702-714-7001 Extn: 9038

    Neuroscience & Psychology Journals

    Nathan T

    [email protected]

    1-702-714-7001Extn: 9041

    Pharmaceutical Sciences Journals

    John Behannon

    [email protected]

    1-702-714-7001Extn: 9007

    Social & Political Science Journals

    Steve Harry

    [email protected]

    1-702-714-7001 Extn: 9042

     
    © 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
    adwords