fermentation monitor Articles

  • QIC-Biostream - exhaust gas analysis of small scale fermenters

    Summary The application of the Hiden QIC-Biostream gas analysis system is to monitor the off-gas and vapours from up to 80 small scale fermenters for yield optimisation and process screening. Introduction Biotechnology is an extremely important area for the 21st century and information relating to yield of a product is crucial to most Biotech ...


    By Hiden Analytical

  • Impact of operating history on mixed culture fermentation microbial ecology and product mixture

    Mixed culture fermentation is an alternative to pure culture fermentation for production of biofuels and valuable products. A glucose-fed, continuous reactor was operated cyclically to a central pH of 5.5 from a number of precedent pHs, from 4.5 to 7.5. At each pH, stable chemical production was reached after 2 retention times and was held for least 2 further retention times prior to the next ...


    By IWA Publishing

  • Differences in soluble COD and ammonium when applying inverted phase fermentation to primary, secondary and mixed sludge

    Primary, secondary and mixed sludge were treated by inverted phase fermentation. This treatment results in solid–liquid separation of sludge after endogenous enzymatic hydrolysis (anaerobic conditions: 42°C, 48 hours). The soluble chemical oxygen demand (sCOD) was increased in the solid phase up to 1,800%, 21,300% and 260% in primary, secondary and mixed sludge, respectively. The corresponding ...


    By IWA Publishing

  • Sorbitol-fermenting Bifidobacteria are indicators of very recent human faecal pollution in streams and groundwater habitats in urban tropical lowlands

    Sorbitol-fermenting Bifidobacteria (SFB) proved to be an excellent indicator of very recent human faecal pollution (hours to days) in the investigated tropical stream and groundwater habitats. SFB were recovered from human faeces and sources potentially contaminated with human excreta. SFB were undetectable in animal faeces and environmental samples not contaminated with human faeces. Microcosm ...


    By IWA Publishing

  • Monitoring of digesters in biogas plants

    Renewable sources of energy are gaining steadily in importance. Leading the way is the use of methane gas obtained from fermentation processes in biogas plants. Overloading such plants with excessive biomass may have drastic economic consequences and may even inactivate the biomass, necessitating a cost-intensive restart. Adding too little biomass also has financial consequences, as less ...


  • Monitoring level of wine vats

    Solid’s MonoScan takes control in Suntime Winery, China, monitoring the wine level in over 60 wine tanks. Suntime Wine Co. in Manasi city is today amongst the top 10 list of manufacturers of red wine in China. Suntime Winery produces red and white wine for both the local Chinese market and the international market. The winery aims for best performance, investing a great deal of time, care and ...

  • Case study - Biogas monitoring for upgraded biomethane

    By working with a range of partners worldwide, Geotech is involved in a range of projects at the cutting edge of biogas production and processing.  The recent landmark deal agreed between Marks & Spencer (M&S) and Future Biogas, a major biogas plant operator, is for the purchase of biomethane certificates. The deal sees M&S purchase 35,000 Mega-Watt hours (Mwh) of certificates, ...


    By Geotech

  • CO2 Monitor For Breweries: Carbon Dioxide Safety and How to Stay Safe

    Carbon dioxide is a necessary byproduct of the brewing process, yet too much CO2 can be dangerous to employee health. In Germany, two workers died at the same brewery in 2012 due to hazardous levels of CO2 present in beer mixing and pressure tanks. Learn more about how CO2 levels can get out of control during the beer brewing process and ways to protect your staff from this deadly gas.  ...

  • Why a CO2 monitor may be needed? Where carbon dioxide leaks occur

    Do you work with carbon dioxide (or CO2) in your industry? If so, then you may need a carbon dioxide monitor to check for gas leaks that could pose a hazard to your workplace safety. Learn common scenarios where carbon dioxide can leak and see how a CO2 detector can minimize your risk.  Industries Where CO2 Monitors Can Make a ...

  • Treatment plant protected by effluent monitor at major drinks factory

    The installation of a BioTector continuous TOC (Total Organic Carbon) monitor to police the front end of Cobevco’s wastewater treatment plant has enabled tight control of the treatment process. Delivering results 20 times faster than laboratory techniques, the monitor at the Elton facility in Cheshire provides advance notice of organic overload so that the plant is able to instantly divert ...


  • Specificity of a defined substrate method used to monitor balneability of tropical coastal waters impacted by polluted stormwater

    Defined substrate (DS) is an alternative technique to monitoring the water quality based on species-specific enzyme activity. Although more sensitive and more specific than traditional media, there is some controversy over use in the warmer waters of tropical and subtropical environments, rich in organic matter and microorganism groups capable of interfering with results. The aim of this study ...


    By IWA Publishing

  • Determination of Trace Lead, Poly-Phenols and Tannins in Wines Using a Single Analytical Instrument

    The manufacturing of wine and other fermented beverages has typically been a fairly simple process. Historically, the expertise of the sage wine-master was used to gauge the quality of the product. Today, many environmental concerns, health factors, and government rules, prompt the producers of fine wines to monitor several important components in the grape, the fermentation vats, and in the ...


    By Buck Scientific Inc

  • Dreyer & Bosse deliver renewable energy CHP project to Sofia in Bulgaria

    The Sofia council decided to invest in renewable energy to make use of the many tons of biowaste (vegetative material),  20,000 tons per annum, from the waste removal collections that take place daily in Sofia and surrounding area. To make this possible it was decided to go for wet fermentation where the substrate or raw material ferments and the biogas is collected. After three weeks the ...

  • Differences in soluble COD and ammonium when applying ultrasound to primary, secondary and mixed sludge

    Ultrasound treatment is often applied to enhance the anaerobic digestion of sludge. Optimal conditions for organic matter solubilisation of primary, secondary and mixed sludge were assessed by implementing ultrasound disruption at different specific energies (from 3,500 to 21,000 kJ/kgTS). The variation in soluble chemical oxygen demand (sCOD) and ammonium nitrogen (NH4+-N) was ...


    By IWA Publishing

  • Biohydrogen production by anaerobic co–digestion of press mud and domestic sewage

    Anaerobic fermentation of press mud and sewage for biohydrogen production was conducted in six batch reactors for various total solid concentrations between 5–8.5%. Chemical oxygen demand, pH, total solid % for biohydrogen produced were monitored regularly. The experiments were conducted for 40 days to optimise the total solid content of the feed for maximum biohydrogen production. Effect of ...


    By Inderscience Publishers

  • Hess Collection (Winery) WWT Paper

    Winery wastewater treatment at Hess Collection Winery (Napa, CA) features floating horizontal brush aerators, data logging, and computer monitoring and control to simplify required water quality reporting. Since installation in 2001, Hess Collection Winery has never been out of compliance with state discharge limits. Wineries generate a strong organic wastewater that is highly depending on ...


    By S & N Airoflo, Inc.

  • Latest analytical technology ensures biogas efficiency

    Anaerobic Digestion (AD) relies on the ability of specific micro-organisms to convert organic material into a gas that can be used to generate electricity. However, these bacteria require specific conditions if they are to function effectively and instrumentation specialist company HACH LANGE has developed a range of online, portable and laboratory instruments that have enabled a large number of ...


  • Two Novel Methods for Enhancing Source Zone Bioremediation: Direct Hydrogen Addition and Electron Acceptor Diversion

    ABSTRACT: Two novel methods for enhancing bioremediation in DNAPL source zones are now being developed. The first method, direct hydrogen addition (i.e., electron donor addition without the use of fermentation substrates), is now being tested in the field by the Technology Transfer Division at the Air Force Center for Environmental Excellence (AFCEE). This approach permits the direct delivery of ...


  • Improved Wastewater Treatment at Hess Collection Winery

    Winery wastewater treatment at Hess Collection Winery (Napa, CA) features floating horizontal brush aerators, data logging, and computer monitoring and control to simplify required water quality reporting. Since installation in 2001, Hess Collection Winery has never been out of compliance with state discharge limits. Wineries generate a strong organic wastewater that is highly depending on ...


    By S & N Airoflo, Inc.

  • Start up study of UASB reactor treating press mud for biohydrogen production

    Anaerobic digestion of press mud mixed with water for biohydrogen production was performed in continuous fed UASB bioreactor for 120 days. Experiment was conducted by maintaining constant HRT of 30 h and the volume of biohydrogen evolved daily was monitored. Various parameters like COD, VFA, Alkalinity, EC, Volatile solids, pH with respect to biohydrogen production were monitored at regular ...

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