advanced anaerobic digestion Articles

  • Use of an elemental balance over primary and secondary anaerobic digestion of sewage sludge to determine its carbon impact

    This paper details how a mass balance, which was conducted for all of United Utilities’ anaerobic digestion plants, was used to calculate emission factors for various types of anaerobic digestion processes to enable calculation their carbon footprint. The mass balance showed average volatile solids destruction rates of 45% and 11% over primary and secondary digestion respectively. The calculated ...


    By Cambi Group AS

  • Trends in biosolids handling technologies: economics and environmental factors

    Changes in activated sludge technology, with a much greater focus on nutrient removal instead of removal of organics, together with relatively long sludge mean that the primary sludge stream has been lost, and the sludge produced is less degradable. At the same time with the growing importance of sustainable solutions, beneficial agricultural use is being increasingly used. This changes quality ...


    By Cambi Group AS

  • Advances in Thermophilic Anaerobic Digestion

    ABSTRACTSignificant advances have been made in the knowledge base and practical options for improving thermophilic anaerobic digestion over the past 10 to 15 years. Today, more options exist that promise to enhance the degree of stabilization achieved and finished product quality in new and retrofitted existing processes. In parallel, the body of knowledge regarding pathogen inactivation in these ...

  • Thick sludge digestion - research design and validation of key process unit operations

    ABSTRACTAdvances in the design of anaerobic digesters have seen a trend towards digestion of thicker sludges in the US, UK and elsewhere. This includes a number of new facilities using bolt on technologies to mesophilic anaerobic digestion such as Cambi Thermal Hydrolysis, Prepasteurisation and Biological Hydrolysis. Cambi Thermal hydrolysis utilises thickenedsludge and the digestion process is ...


    By Cambi Group AS

  • Waterschap De Dommel - Tilburg - Case Study

    Client: Waterschap De Dommel Solution: CambiTHP - B12 Tilburg Waterboard De Dommel (WDD) is responsible for water management and wastewater collection and treatment in the South-Eastern part of the Netherlands, covering approx. 151.000 ha and collecting wastewater from approx. 900.000 inhabitants. WDD operates in total 8 ...


    By Cambi Group AS

  • Maximizing Energy Recovery through Digester Gas Management System Enhancement

    ABSTRACTAdvanced anaerobic digestion practices and maximum energy recovery call for a digester gas system that reliably allows for complete biogas collection and utilization. This paper will describe the planning, design, and construction of a new digester gas management system at the East Bay Municipal Utility District’s (District) Main Wastewater Treatment Plant. The need for an upgraded ...

  • Comparison of sidestream treatment technologies: post aerobic digestion and Anammox

    Post aerobic digestion (PAD) and anaerobic ammonium oxidation (Anammox) are sidestream treatment technologies which are both excellent options for the reduction of nitrogen recycled back to the liquid stream without the need for supplemental carbon or alkalinity. However, the achievement of this goal is where the similarities between the two technologies end. PAD is an advanced digestion ...


    By IWA Publishing

  • Milton Keynes, UK - Case Study

    Milton Keynes Waste Recovery Park: putting Circular Economy thinking into practice. Background Milton Keynes Waste Recovery Park is a world-class waste treatment facility, which is due to be fully operational in 2016. The facility aims to deal with Milton Keynes’ black bag waste in a sustainable way by incorporating three different types of treatment on one ...


    By TOMRA Sorting GmbH

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