landfill leachate aerator Articles

  • Comparative analysis of extended aeration and Fenton process in landfill leachate treatment

    This research is undertaken to investigate various operating conditions for minimising sludge disposal and maximising chemical oxygen demand from leachate. With conventional extended aeration process the optimum removal of COD and colour were 36% and 24% respectively. In Fenton process, for optimum pH of 5 and optimum H2O2/Fe ...


    By Inderscience Publishers

  • Leachate treatment solution for council – Landfill Site, Camarthenshire

    Plant Equipment: Ocean Professional Nitrification Plant Design Data: Effluent target (NH4-N): <4 Daily flow (m3/day): 120 Ammonia load (kg/day): 6 BOD load (kg/day): n/a Situation and Problem This site comprises of six landfill cells and phase ...


    By EnSo International Ltd

  • KLa Slot Injector™ Aeration System Expands the Capacity of an SBR at a Landfill Leachate Treatment Facility

    The Challenge A landfill had an existing single basin SBR plant to process the leachate which is notable for its high nitrogen load. The original system was installed with a fine pore diffuser aeration system and due to the chemical/biological composition of the mixed liquor it was prone to diffuser fouling and premature membrane failure Over time this was detrimental to the biological process ...


    By KLa Systems, Inc.

  • Leachates: Technologies for onsite sustainable leachate management

    Municipal landfill leachate is characterized by high concentrations of recalcitrant organic compounds, ammonia, suspended material and heavy metals. As a result, leachate is difficult to manage because conventional forms of biological and chemical treatment are inefficient at dealing with such a diverse and complex waste stream. Because of widely varying practices in solid waste management, an ...


    By Waste Advantage Magazine

  • Consortia of microalgae and bacteria in the performance of a stabilization pond system treating landfill leachate

    This study treated sanitary landfill leachate and was conducted in a pilot-scale system composed of three serial ponds (P1, P2 and P3), followed by a rock filter, in order to evaluate the microbial consortium influence on system performance and to investigate microorganism dynamics in the process. The system was broken into three stages, with a continuous flow rate (Q = 200 L ...


    By IWA Publishing

  • Systematic model development for partial nitrification of landfill leachate in a SBR

    This study deals with partial nitrification in a sequencing batch reactor (PN-SBR) treating raw urban landfill leachate. In order to enhance process insight (e.g. quantify interactions between aeration, CO2 stripping, alkalinity, pH, nitrification kinetics), a mathematical model has been set up. Following a systematic procedure, the model was successfully constructed, calibrated and validated ...


    By IWA Publishing

  • Treatment of municipal landfill leachate using magnetic porous ceramsite carrier

    In this study, porous ceramsite carrier was modified using magnetic material as raw material. The magnetic porous ceramsite carrier was applied to the treatment of municipal landfill leachate. The results showed that the removal efficiency of chemical oxygen demand (COD), NH3-N and Cr6+ in the supernatant were all more than 90% after 30 days with the aeration rate of 3 ...


    By IWA Publishing

  • Case Study, Colnbrook Leachate Plant.

    Triangle Ltd was contracted in 2008 by Biffa Waste Services at Colnbrook, Heathrow to resolve the problem of the landfill leachate borehole pumping system failing to deliver acceptable volumes to the SBR leachate plant. Initially they were achieving a maximum of 110m³/month during the fill/aerate treatment ...


    By Triangle Ltd

  • Performance of Biological Powder Activated Carbon-Membrane Bioreactor (BPAC-MBR) for old-landfill leachate treatment

    This research aims to investigate the performance of the combined BPAC-MBR system for old-landfill leachate treatment. The system was operated at two different intermittent aeration modes (aeration or non-aeration) of 120-120 min and 150-150 min. It was found that the BPAC-MBR system operating at 150-150 min could give higher removal efficiencies for all parameters; COD at 83%, colour at 85%, TKN ...


    By Inderscience Publishers

  • Enso International Ltd Select Biomarble From Warden Biomedia Range For Landfill Leachate Treatment Plant At Nantycaws case study

    The existing landfill leachate treatment plant at Nantycaws was failing to meet the consent levels, and Carmarthenshire County Council was tankering on a daily basis. The Council was therefore looking for a robust treatment solution that would meet the EA consent requirements and reduce the frequency of tankering. Working in collaboration with WEBS, EnSo International Ltd was called in to offer ...


    By Warden Biomedia

  • Effect of chloride concentration on nitrogen removal from landfill leachate in sequencing batch reactor after MAP pretreatment

    Leachate generated from landfill is becoming a great environmental challenge to China as it contains high concentration of COD, ammonium and some other substances. Nitrogen removal through the conventional nitrification-denitrification process is hampered by the low C/N ratio especially for the old age landfill sites and the high energy consumption for aeration. In this study, the combination of ...


    By IWA Publishing

  • Membrane Bioreactor for Sanitary Landfill

    The Problem The county of Warren NJ owns and operates a sanitary landfill in Oxford Twp, NJ. The facility generates an average of 50,000 gallons per day of leachate, with peaks to 100,000 gallons per day. The facility was discharging to a local POTW from their lagoon, but they were facing requirements for nitrogen removal from the POTW and needed a new system to provide ...


    By Dynatec Systems Inc.

  • Mechanism studies on nitrogen removal when treating ammonium-rich leachate by sequencing batch biofilm reactor

    The nitrogen removal mechanism was studied and analyzed when treating the ammonium-rich landfill leachate by a set of sequencing batch biofilm reactors (SBBRs), which was designed independently. At the liquid temperature of (32 ± 0.4)°C, and after a 58-days domestication period and a 33-days stabilization period, the efficiency of ammonium removal in the SBBR went up to 95%. Highly frequent ...


    By Springer

  • Composting Key to Meeting Landfill Organics Ban

    The Halifax Regional Municipality (HRM) in Nova Scotia took a giant leap in 1998 to reaching a 50 percent diversion goal by 2000. Between July and November, 1998, organics collection carts were distributed to almost 100,000 households in the region. In December, two new composting facilities designed to process those materials, as well as feedstocks from the commercial sector, opened their doors. ...


    By BioCycle Magazine

  • Dynatec Provides MBR System for Hazardous Landfill

    The Problem A hazardous waste landfill in Belleville, MI, owned by the Environmental Quality Company had a problem. They needed to develop a treatment process to remove COD, high TDS, heavy metals, phenol, PCB’s, Ammonia, and Molybdenum from the landfill leachate. Current treatment comprised of chlorination and activated carbon treatment was very costly. ...


    By Dynatec Systems Inc.

  • Ammonia Stripping And Integrated Fixed-Film Activated Sludge

    The Keystone Sanitary Landfill (KSL) is located at the Keystone Industrial Park in Dunmore and Throop Boroughs, Pennsylvania. The 618 acre landfill site was originally permitted for 5,000 tons of trash per day, and recently received a permit to develop more cells to extend the operation for another 25 years at 5,000 tons per day. Landfill leachate, an inevitable by-product of landfilling, is ...


  • Pure oxygen makes the grade

    The Bryn Posteg landfill site, which opened in 1982, is owned and run by Potters Waste Management and is located close to Llanidloes in mid Wales. Licensed for the disposal and treatment of household waste, the site is set in a remote area. The site has always been a full ‘containment’ site, which utilises natural impermeability and engineered systems to prevent leachate from being discharged ...


    By Air Products

  • Ecoprocess Sequencing Batch Reactor (SBR) - Waste Management, QC, Canada

    Customer: Waste Management, QC, Canada Waste Management, Inc. is the leading provider of comprehensive waste and environmental services in North America. The company is strongly committed to a foundation of financial strength, operating excellence and professionalism. Waste Management currently operates ten full-scale waste treatment landfill projects in the U.S. and Canada. ...


    By Premier Tech Aqua

  • ENVIRONMENT- Technological Innovation

    Untitled Document LuminoTox, a new easy to use tool for toxicity assessment, has been tested on various types of wastewaters to ...


    By LBi (Lab_Bell Inc.)

  • Diverting Food Residuals in Minnesota

    Untitled Document IN MINNESOTA, the land of 12,000 lakes, we are experiencing new challenges in protecting those lakes as well as our rivers ...


    By BioCycle Magazine

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