Waste Digestion Articles

  • Busting Biomethane Myths

    Over the past few years, more and more companies have woken up to the financial and environmental benefits to be gained by making the most of their organic waste streams. In fact, the anaerobic digestion (AD) industry – which converts millions of tonnes of food, sewage and farm waste into renewable energy (biogas) and biofertiliser – has been one of the UK’s biggest success ...

  • Calculating Economic Impact Of Commercial Organics Ban

    Quantitative and qualitative analysis conducted in Massachusetts indicates growth in employment and revenues after implementation of the commercial organics waste ban. Reducing disposal of food materials, and driving food to higher and better uses, are increasingly top priorities all across America and internationally. Wasting food wastes resources that could be put to a much better use, ...


    By BioCycle Magazine

  • Comparison of the methane production potential and biodegradability of kitchen waste from different sources under mesophilic and thermophilic conditions

    The methane production potential of kitchen waste (KW) obtained from different sources was compared through mesophilic and thermophilic anaerobic digestion. The methane yields (MYs) obtained with the same KW sample under different temperatures were similar, whereas the MYs obtained with different samples differed significantly. The highest MY obtained in S7 was 54%–60% higher than the lowest ...


    By IWA Publishing

  • Case study - MBT Posen

    Engineering and planning, procurement, production and delivery of machinery and materials handling as well as installation and commissioning of parts of a plant for mechanical and biological treatment. Customer: ZZO Poznan Retention: October 2014 Acceptance: June 2016 Input: Biowaste ...


    By Eggersmann Anlagenbau

  • Membranes in the Fast Lane – QUA CeraQ Featured in Water and Wastes Digest (W&WD)

    Membranes in the Fast Lane – Ceramic membranes provide solution for auto parts manufacturing process Our CeraQ™ Ceramic Membrane was recently featured in Water and Wastes Digest (W&WD)’s September 2016 Issue. In this ...


    By QUA Group LLC

  • Editorial: Going For Gold

    Production of August BioCycle overlaps with the Summer Olympic games in Rio. Watching athletes from around the world put themselves out there in hopes of winning the gold is inspiring, sometimes breathtaking. The rigor of training, the intensity of competition, the dedication and discipline — are there parallels to our world of organics recycling? First there is the obvious. Retail compost ...


    By BioCycle Magazine

  • Industry Responds To Revised European Parliament Report On Waste Legislation

    On June 9, 2016, European Bioplastics (EUBP) announced the support of a European Parliament (EP) report emphasizing the role of bioplastics in the creation of a circular bioeconomy. The report, produced by Italian MEP Simona Bonafè¨, outlines legislation that is ...


    By Bergeson & Campbell, P.C.

  • BioCycle Portals To Organics Recycling In U.S. & Canada

    Updated BioCycle FindAComposter.com and the brand new BioCycle FindADigester.com and FindOrganicsHauler.com are launched and open for listings. In April 2007, BioCycle launched FindAComposter.com®, a publicly searchable database of composting facilities in the United States and Canada. The intent was to make it easy to find composting facilities to divert organic waste streams as well as buy ...


    By BioCycle Magazine

  • Does the use of tubular digesters to treat livestock waste lower the risk of infection from Cryptosporidium parvum and Giardia lamblia?

    Worldwide, high incidences of cryptosporidiosis and giardiasis are attributed to livestock waste. Quantitative microbial risk assessment can be used to estimate the risk of livestock related infections from Cryptosporidium parvum and Giardia lamblia. The objective of this paper was to assess the occupational and public health risks associated with management of raw and ...


    By IWA Publishing

  • Evaluation of the energetic potential of sewage sludge by characterization of its organic composition

    The composition of sewage sludge and, thus, its energetic potential is influenced by wastewater and wastewater treatment processes. Higher or lower heating values (HHV or LHV) are decisive factors for the incineration/gasification/pyrolysis of sewage sludge. The HHV is analyzed with a bomb calorimeter and converted to the LHV. It is also possible to calculate the heating value via chemical ...


    By IWA Publishing

  • Semi-continuous mesophilic anaerobic co-digestion of thermally pretreated scum

    The objective of this study is to investigate the mesophilic, anaerobic, co-digestion of scum with thickened waste activated sludge (TWAS) and primary sludge (PS). Observations of the reactor waste show that higher pretreatment temperatures assist in scum integration and appear to limit coagulation and separation effects associated with digesting fats, oils and greases. The 0.40 kg VS/m3 · d ...


    By IWA Publishing

  • Comparison of multi-enzyme and thermophilic bacteria on the hydrolysis of mariculture organic waste (MOW)

    Mariculture organic waste (MOW) is rich in organic matter, which is a potential energy resource for anaerobic digestion. In order to enhance the anaerobic fermentation, the MOW was hydrolyzed by multi-enzyme and thermophilic bacteria. It was advantageous for soluble chemical oxygen demand (SCOD) release at MOW concentrations of 6 and 10 g/L with multi-enzyme and thermophilic bacteria ...


    By IWA Publishing

  • Effect of sodium salt on anaerobic digestion of kitchen waste

    The effect of different sodium salt concentration on anaerobic digestion of kitchen waste was investigated. The methane production performance, the corresponding methane production model and sodium salt inhibition model were studied, and the degradation efficiency was analyzed. With the increase of sodium salt concentration, the methane yield and the maximal methane production rate decreased ...


    By IWA Publishing

  • Effect of organic loading rate on the performance of two-stage anaerobic digestion of the organic fraction of municipal solid waste (OFMSW)

    Two-stage anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) was carried out: hydrolysis and acidogenesis in a continuous anaerobic hydrolytic leach bed (AHLB) reactor loaded at different rates (Bv = 3.8–7 gVSSL−1d−1) and methanogenesis of leachates, diluted with municipal wastewater in an upflow anaerobic ...


    By IWA Publishing

  • Enhanced anaerobic digestion of waste activated sludge of low organic content in a novel digester

    A novel digester, termed an internal circulation anaerobic digester (ICAD), was developed to intensify sludge digestion. It consists of reaction zone, settling zone, thickening zone, riser and downcomer. Internal circulation in the digester is intensified by backflow biogas. The mesophilic ICAD treating thermal pretreated waste activated sludge with volatile suspended solids (VSS)/suspended ...


    By IWA Publishing

  • GTI Supplies Innovative Cover for Waste-to-Energy Digester

    The Customer: LaForge Bioenvironmental operates a waste-to-energy facility in a northwest farming community of New Brunswick, Canada. The system is located on a 1,000 acre (405 hectare) mixed farming operation, which includes the LaForge Holsteins dairy. LaForge planned to expand its 500kW combined heat and power (CHP) system to more than double the capacity by converting an existing holding ...

  • Comparison of Capacity Factors in Anaerobic Digestion of Organic Waste in the UK

    The ranking was made based on the ratio between the gross electrical production of the plant during 2014 and the registered capacity of the plant under Renewable Energy Guarantees of Origin (REGO) scheme. The data on the electrical production of the plants is publically available through Ofgem  (The Office of Gas and Electricity Markets) which is responsible for the issuance of ...

  • Two-phase anaerobic co-digestion of food waste and sewage sludge

    The feasibility and performance of food waste and sewage sludge co-digestion were investigated to gain insight into their resource utilization. In this study, two-phase anaerobic digestion (TPAD) was operated under a total solids mixing ratio of 1:1 and different sludge retention times (SRTs). Results show that an acidogenic reactor with a 5-day SRT obtained the highest acidification efficiency, ...


    By IWA Publishing

  • Operations & Experience of the Ecopro Co-digestion Plant, Norway

    ECOPRO Background 51 Norwegian municipalities formed the company Ecopro and decided to build a second generation biowaste (co-digestion) plant in Norway. The project started with a pre-qualification in early 2004 followed by a tendering process where the pre-qualified participants where invited to submit an offer. After this process Cambi was awarded the contract ...


    By Cambi Group AS

  • Optimization of Anaerobic Digestion & Bio-Organic Catalyst Compositions (BOCs)

    Abstract: Anaerobic digestion offers excellent opportunities to convert organic waste streams into environmentally safe bio-solids and generation of renewable energy through the bio-methane produced by the microbiological populations processing the wastes. Bio-organic catalyst compositions (BOCs) offer improvements in enhancing anaerobic biological activity and raising bio-methane ...


    By EcoJump LLC

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