reed bed filter Articles

  • Performance of a system with full- and pilot-scale sludge drying reed bed units treating septic tank sludge in Brazil

    This study investigated the performance of sludge drying reed beds (SDRB) at full- and pilot-scale treating sludge from septic tanks in the city of Belo Horizonte, Brazil. The treatment units, planted with Cynodon spp., were based on an adaptation of the first-stage of the French vertical-flow constructed wetland, originally developed for treating sewage. Two different operational phases ...


    By IWA Publishing

  • Biological Cr(VI) removal using bio-filters and constructed wetlands

    The bioreduction of hexavalent chromium from aqueous solution was carried out using suspended growth and packed-bed reactors under a draw-fill operating mode, and horizontal subsurface constructed wetlands. Reactors were inoculated with industrial sludge from the Hellenic Aerospace Industry using sugar as substrate. In the suspended growth reactors, the maximum Cr(VI) reduction rate (about 2 ...


    By IWA Publishing

  • A decade of compact vertical flow constructed wetlands

    Compact vertical flow constructed wetlands (1–2 m2/pe, down-flow, single bed, >500 mm sand depth) were first installed in the UK in 1998, since when over 40 such beds have been implemented. After ten years of experience, this approach to wastewater treatment is reviewed with respect to operation and maintenance, and water quality improvement. Despite considerable accumulation of organic solids on ...


    By IWA Publishing

  • Reconstruction of a constructed wetland with horizontal subsurface flow after 18 years of operation

    The constructed wetland (CW) for 326 PE with horizontal subsurface flow at Kotenčice, Central Bohemia, Czech Republic, was built in 1994. Despite the relatively high efficiency of the CW, the filtration beds suffered from clogging, and therefore it was decided in 2011 to rebuild the whole system. The new treatment system was built as an experimental system consisting of four different ...


    By IWA Publishing

  • French vertical flow constructed wetlands: a need of a better understanding of the role of the deposit layer

    French vertical flow constructed wetlands, treating directly raw wastewater, have become the main systems implemented for communities under 2,000 population equivalent in France. Like in sludge drying reed beds, an organic deposit layer is formed over time at the top surface of the filter. This deposit layer is a key factor in the performance of the system as it impacts hydraulic, gas transfers, ...


    By IWA Publishing

  • Versatile and Reliable Bio-augmentation to Remain within Discharge Consent

    Cleveland Biotech Ltd's Baccelerator® was launched two years ago. It has been employed in a wide variety of applications and has improved the biological performance of all the treatment works to which it has been attached. Examples of some of the uses to which the ...


    By Cleveland Biotech Ltd.

  • 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

  • Wastewater Treatment Plant Optimisation PLANT C - Case Study

    Site Details:: PLANT C Wastewater Treatment Works, Co. Cavan, Ireland. Operator details: Undisclosed Description of Wastewater Treatment Facility: PLANT C is a Municipal Wastewater Treatment Facility which uses a trickling filter and RBC for treatment of the wastewater and has tertiary treatment using a reed bed before final discharge. Plant consists of an ...


  • Sacred place in Egypt saved by treating wastewater

    While investigating a wastewater problem in an Egyptian village, Alterra researcher Joop Harmsen discovered that a monastery was in danger of collapsing. This unexpected threat to a sacred place turned out to be the most important incentive for tackling this particular wastewater problem in the short term. Normally there would be no funding for such a project. The village of Deir Gebel El-Tair ...

  • Countess Wear WwTW - Biostyr BAFF, United Kingdom

    South West Water 83 week - Programme 3,570 m3/hr The Client South West Water provides water and sewerage to 1.6 million customers in Devon, Cornwall and parts of Dorset and Somerset. The region attacts over 8 million holiday makers to the 625 miles of scenic coastline and countryside. The company is part of Pennon Group ...


  • Wastewater Treatment Plant Optimisation PLANT B - Case Study

    Site Details: PLANT B, Co. Cavan, Ireland. Operator details: Undisclosed Description of Wastewater Treatment Facility: PLANT B is a Municipal wastewater treatment plant which has primary clarification followed by a splitter chamber where the flow is split between 2 trickling filters with plastic media and an RBC. These operate in parallel. The ...


  • Sydney´s Sustainable House

    Introduction Sustainability or 'sustainable development' has become a term which is frequently applied to land use and social planning and resource issues. Sustainability is a concept which draws attention to development practices which can degrade natural ecosystems and deplete natural resources. If development is defined broadly to include any cultural activity, then sustainable development may ...


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