total sulphides analyser Articles

  • Silent sentinel role for static gas analyser at United Utilities

    Biogas produced by the United Utilities anaerobic digestion sludge plant at Lancaster (Stodday) waste water-treatment runs a brand new 525kW combined heat and power (CHP) engine generating electricity and now operating 24/7. It joins an existing 325kW engine already in service for three years. In addition to biogas from the Stodday mesophilic anaerobic digester, a new enzymic hydrolyser increases ...


    By Geotech

  • Vibrational and quantum chemical investigations of 4.6–dimethyldibenzothiophene

    To study the characteristics of the thiophene sulphides in coals, the structures and properties of 4.6–DMDBT were investigated by using density functional theory (DFT) approach in the research, the following results can be illustrated, namely, the geometry parameters, vibration frequencies, total density of states and partial density of states, atomic charges, thermodynamics, Fukui functions, and ...


    By Inderscience Publishers

  • Redox conditions and groundwater quality issues of selected alluvial aquifers in Serbia

    Redox conditions are an important regulator of aqueous biogeochemistry and knowledge about them is crucial for an understanding of the fate and occurrence of nitrates, emerging substances, and organic compounds in shallow groundwater. The aim of this paper is to determine redox categories, along with prevailing redox processes, and the differences in groundwater quality between shallow ...


    By IWA Publishing

  • Retention and distribution of Cu, Pb, Cr, and Zn in a full-scale hybrid constructed wetland receiving municipal sewage

    This study was conducted to investigate the retention and distribution of Cu, Pb, Cr, and Zn in a hybrid constructed wetland (CW) that consists of both vertical baffled flow wetlands (VBFWs) and horizontal subsurface flow wetlands (HSSFs) with unique flow regimes and oxygen distribution. The heavy metal concentrations in water, sediments, and plant tissues in the hybrid CW were analysed. The ...


    By IWA Publishing

  • BiogenGreenfinch fine-tunes biogas monitoring with AEMS

    As BiogenGreenfinch builds its next, much larger and first, second-generation anaerobic digestion (AD) facility at Westwood in Northamptonshire, it is making good use of everything it has learned from the construction and operation of its pioneering, commercial food waste AD plant at Twinwoods, Bedfordshire and the new technology now available. For BiogenGreenfinch the key to successful AD ...


    By Geotech

  • Going Further with Food: The Rise of Channelling Food Waste for Biogas Production

    Almost 50% of the total amount of food thrown away in the UK comes from our homes, representing over seven million tonnes of food and drink wasted from British households annually. Wasting this food costs the average household £470 a year. In fact, if we all stop wasting food that could have been eaten, the benefit to the planet would be the equivalent of taking 1 in 4 cars off the road ...


    By Geotech

  • Going further with food: The rise of channelling food waste for biogas production

    Almost 50% of the total amount of food thrown away in the UK comes from our homes, representing over seven million tonnes of food and drink wasted from British households annually. Wasting this food costs the average household £470 a year.  In fact, if we all stop wasting food that could have been eaten, the benefit to the planet would be the equivalent of taking 1 in 4 cars off the ...


    By Geotech

  • Case study - Going further with food: The rise of channelling food waste for biogas production

    Almost 50% of the total amount of food thrown away in the UK comes from our homes, representing over seven million tonnes of food and drink wasted from British households annually. Wasting this food costs the average household £470 a year.  In fact, if we all stop wasting food that could have been eaten, the benefit to the planet would be the equivalent of taking 1 in 4 cars off the ...


    By Geotech

  • Flying High

    Operating a biogas plant without gas quality and flow instrumentation is like trying to fly a ...


    By Gas Data Ltd

  • Closures of mine a new challenge for Romania

    AbstractThe mining activity is one of the oldest activity in Romania, dating from the year 100 B.C. The gold and silver ores represented one of the riches of our country. In time the economic content of metals diminuend, and the ore mines become non profitable. Due to this situation the best option of the State was the closure and ecological rehabilitation of the mines.The steps for the ...


  • Generation using gas-fuelled engines in South Africa – an overview

    Most gas engines are Otto cycle spark ignition internal combustion reciprocating engines using natural gas as the primary fuel. Smaller models utilise stochiometric combustion while the larger engines are lean burn engines with pre-chamber ignition systems. The engines are coupled with packaged generator sets, ...


    By Clarke Energy

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