odour control ventilation Articles

  • A dynamic ventilation model for gravity sewer networks

    To implement any effective odour and corrosion control technology in the sewer network, it is imperative that the airflow through gravity sewer airspaces be quantified. This paper presents a full dynamic airflow model for gravity sewer systems. The model, which is developed using the finite element method, is a compressible air transport model. The model has been applied to the North Head ...


    By IWA Publishing

  • A sewer ventilation model applying conservation of momentum

    The work presented herein was completed in an effort to characterize the forces influencing ventilation in gravity sewers and to develop a mathematical model, based on conservation of momentum, capable of accounting for friction at the headspace/pipe interface, drag at the air/water interface, and buoyancy caused by air density differences between a sewer headspace and ambient. Experiments were ...


    By IWA Publishing

  • Case study - Odor treatment in a ventilation shaft of a sewage tunnel

    Bioconservacion’s distributor for municipal biogas and odor applications in Turkey, Biotek Ltd, has recently won a tender for Izmir’s municipal authority IZSU to supply equipment and media for odor abatement coming from a ventilation shaft of a sewage tunnel. These shafts, also known as airshafts or vent shafts, are passages used in different applications such as mines ...


    By Bioconservacion SA

  • Reduction of ammonia emissions during composting by Uncoupling of oxygen demand and heat removal

    Intensive pig production systems result in high emissions of ammonia, odour and greenhouse-gases (methane and laughing gas) by exhaust ventilation air. Moreover, large amounts of manure (faeces and urine) are produced with insufficient nearby land for applications (Imbeath, 1998). These outputs lead to environmental problems related to ...


    By ORBIT e.V.

  • WPL supplies Farne Salmon and Trout with a substantial new effluent treatment plant case study

    A new effluent treatment plant designed by WPL is ensuring that Farne Salmon and Trout Ltd in Berwickshire - one of Europe's largest smoked salmon facilities - complies with tighter local trade effluent discharge regulations, whilst significantly reducing its sewer discharge costs. WPL worked with Farne and Scottish Water from an early stage to design ...


    By WPL Ltd

  • WPL supplies Farne Salmon and Trout with a substantial new effluent treatment plant

    A new effluent treatment plant designed by WPL is ensuring that Farne Salmon and Trout Ltd in Berwickshire - one of Europe's largest smoked salmon facilities - complies with tighter local trade effluent discharge regulations, whilst significantly reducing its sewer discharge costs. WPL worked with Farne and Scottish Water from an early stage to design and supply a substantial, energy efficient ...


    By WPL Ltd

  • Gas detector communication technology for offshore oil and gas platforms

    In few applications is safety as important as on offshore oil and gas platforms. Explosive hazards from hydrocarbon gases and vapours are an ever-present risk, whilst toxic hydrogen sulphide gas and depleted oxygen environments can pose significant risks to personnel. Gas detectors are therefore essential to provide dependable early warning of gas hazards. Gas detectors are permanently installed ...

  • Embalmers risk dangerous exposure to Formaldehyde

    Embalmers can be at risk of dangerous exposure to Formaldehyde. ...


    By PPM Technology

  • Huge increases at thermophilic AD plant in Switzerland - Case Study

    Biogas volume increase of 30% at a thermophilic digester in Switzerland. The Germanier SA plant in Lavigny, Switzerland was regarded as one of the best performing AD plants. The field trial has become a project which has been successfully running for the last 3 years. Listed below is the current data: Biogas output has increased from 5545 to over 7201m3/day, an increase of ...

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