waste digestion Articles

  • Reasonable waste digestion plants

    During the last years it became quite clear that in the area of utilisation of organic waste the anaerobic digestion has developed a leading position. This is not only based on its well known advantages:- abhigh rate degradation of organics- abcontained process- ablow emissions- abhigh yield of CO2-neutral produced biogas and high quality compost as its productsbut also on the fact that customers ...


    By ORBIT e.V.

  • An asymptotic observer-based monitoring scheme for a class of plug flow reactors

    In this paper a monitoring tool is designed for a class of plug flow reactors whose mathematical model is described by a set of first-order partial differential equations with different coefficients in the convective terms. The infinite dimensional structure of such a tool is derived according to the methodology established in the design of the well-known asymptotic observer. As a consequence, it ...


    By IWA Publishing

  • Anaerobic Digestion technologies for the treatment of Municipal Solid Waste

    Anaerobic Digestion (AD) of Municipal Solid Waste (MSW) is used in several regions worldwide and systems span a range of design options including wet, dry, thermophilic, mesophilic, batch, continuous, single-stage, and multi-stage configurations. This paper reviews a number of commercial and emerging solid waste digestion systems discussing performance and costs. Systems yield 250?710 m³ of ...


    By Inderscience Publishers

  • Sequencing Batch Reactors - Case study

    H2flow supplied the SAM SBR for treating this high strength wastewater. The wastewater is generated from dewatering wasted anaerobic digestion solids. In addition it supplied the glass fused to steel tanks as an integrated package. The tanks are covered with roofs and are 12m diameter by 7.4m tall. There is one equalization tank and two reactor tanks. There were a total of eight tanks ...


    By H2Flow Equipment Inc.

  • Energy Recovery Solution from the Wasted Grey Water - Case Study

    Energy Recovery Solution from GREY Wasted Water in Large Condos or Hotels, or in WTP or from City Sewage pipes flowing under the street. The Energy Recover Solutions are Patented Technology with Major Benefits in different markets A practical solution to save Wasted energy. Return On Investment possible within 1 year. INNOVATIVE APPROACH IN HEAT RECOVERY USING DDI Patented ...


    By DDI Heat Exchangers Inc.

  • 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 article, we detail a recent ceramic membrane solution QUA provided for an automotive parts manufacturer in Italy that was having trouble successfully removing ...


    By QUA Group LLC

  • Carbon offsets from organic waste conversion projects

    The Climate Act ion Reserve (the Reserve) has long had a protocol to give credit for the capture and destruction of methane emissions from organic waste in landfills, but they have now opened up the possibility of credits for projects that prevent that waste from entering landfills in the first place. In October 2009, the Reserve adopted the Organic Waste Digestion Project Protocol, covering both ...


    By Waste Advantage Magazine

  • Application of LCA to support solid waste management policy in Phuket

    Life Cycle Assessment (LCA) is employed to evaluate the environmental performance of the existing Municipal Solid Waste (MSW) management system in Phuket and compared with different possible alternative Integrated Waste Management Systems (IWMSs). The results show that the scenario comprising source separation of waste for anaerobic digestion and recycling plus incineration (with energy recovery) ...


    By Inderscience Publishers

  • 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 / Green waste -> Digestate / Loppings Throughput: 12.000 Mg/a 12.000 Mg/a 22.000 Mg/a 6.000 Mg/a ...


    By Eggersmann Anlagenbau

  • Synergistic application of advanced primary and secondary wastewater treatment systems

    Published in Water and Waste Digest membrane issue, November 2008 Miroslav Colic; Chief Scientist, Clean Water Technology Inc., Los Angeles, CA To be published in Water and Waste Digest later this year The increased regulatory pressures and demand for reused water stimulated development of several new wastewater technologies in the last decade. Advanced treatment systems are characterized by ...

  • Producing green energy from post-consumer solid food wastes at a wastewater treatment plant using an innovative new process

    ABSTRACT More than 246 million tons of municipal solid waste (MSW) was generated in the United States in 2005, and this tonnage is expected to increase every year. The third highest component of MSW is food waste, but less than 3% of food waste is recycled. In an effort to meet the U.S. Environmental Protection Agency’s national 35% MSW recycling goal, and many states’ and local governments’ ...

  • Recovery of volatile fatty acids (VFA) from complex waste effluents using membranes

    Waste effluents from anaerobic digesters of agricultural waste were treated with a range of membranes, including microfiltration and nanofiltration (NF), to concentrate volatile fatty acids (VFA). Microfiltration was applied successfully to produce sterile, particle-free solutions with a VFA concentration of 21.08 mM of acetic acid and 15.81 mM of butyric acid. These were further treated using ...


    By IWA Publishing

  • Bio hydrogen production from kitchen waste

    The hydrogen producing organisms such as Escherichia coli (E.Coli), Enterobacter cloacae, Hafnia alvei, Citrobacter freundii, Serratia marcescens and Clostridium acetobutylicum strains were isolated from the sludge of biogas plant. The hydrogen producing efficiency of isolated organisms from kitchen waste were examined under anaerobic conditions. Lab scale studies were conducted under controlled ...


    By Inderscience Publishers

  • 10 Industry Resources for Engineers

    An integral part of being an engineer is staying up to date on new discoveries, developments, trends and news in your particular field. The ever-evolving nature of the job makes staying ahead of the curve a challenge, but necessary. Finding a good source of relevant information amongst the plethora of available resources can be difficult and time consuming. That’s why we’ve rounded ...


    By Oil Skimmers, Inc.

  • Quantifying the impacts of co-digesiton of waste streams with sewage sludge

    In order to slow down the impending impacts of global climate change due to consumption of fossil fuels, governments are looking at ways to develop and incentivise alternative renewable energy sources. Subsequently, the UK has imposed renewable energy targets of 15% of all energy consumption by the year 2020, but admit that – in order to meet carbon dioxide reductions of 20% by 2020 – renewable ...


    By United Utilities

  • The mathematical modelling of biomethane production and the growth of methanogenic bacteria in batch reactor systems fed with organic municipal solid waste

    A mathematical model was developed and validated for an anaerobic digestion system of the Organic Fraction of Municipal Solid Wastes (OFMSWs) by using a laboratory-scale system of two Packed Bed Reactors (PBRs). The equations were obtained by the mass balances of methanogenic bacteria of affluent and effluent lixiviated, as well as the interior in each reactor. The methane rate was obtained by ...


    By Inderscience Publishers

  • HydroThane T&C case study

    Application in Dairy Industry Technology & Contracting On January 2011 HydroThane has been awarded with a contract to supply design and the anaerobic hardware but also all auxiliary equipment and project management/supervision services for the dairy of TYRAS in Greece. Having the aim to achieve the required quality standard, the local civil work and electromechanical installation teams were ...


    By HydroThane STP BV

  • Rest or mixed waste sorting-digestion-separation for the recovery of recyclables and energy

    Source separate collection of biowaste has been implemented in many countries in Europe, especially in the German- speaking countries and the Benelux. By separating the biowaste fraction, a waste fraction called rest waste or grey waste is left over. This fraction is in most instances landfilled or incinerated. However, rest waste still contains a considerable amount of organics (up to 65%) which ...


    By ORBIT e.V.

  • Performance study for anaerobic digestion of municipal solid waste in a single phase reactor

    Anaerobic Digestion (AD) has been up to now essentially applied to wastewater. However, anaerobic treatment of organic solid waste fits well with the new requirements for waste management. A batch study of vegetable market waste composed at various solid concentrations was studied in a single phase anaerobic reactor. Prior to this, studies were also carried out in aspirator bottles of different ...


    By Inderscience Publishers

  • An efficient method to improve the production of methane from anaerobic digestion of waste activated sludge

    Methane production from waste activated sludge (WAS) anaerobic digestion is always low due to slow hydrolysis rate and inappropriate ratio of carbon to nitrogen (C/N). In this work, a novel approach, i.e., co-digestion of WAS and tobacco waste (TW) using ozone pretreatment, to greatly enhance the production of methane is reported. Experimental results showed the optimal C/N and ozone dosage ...


    By IWA Publishing

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