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Titration methodologies for monitoring of anaerobic digestion in developing countries?a review

Titration methodologies for monitoring of anaerobic digestion in developing countries?a review,10.1002/jctb.1143,Journal of Chemical Technology and Bi

Titration methodologies for monitoring of anaerobic digestion in developing countries?a review   (Citations: 8)
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An increase in volatile fattyacids (VFA) concentration (orthe proportionaldecrease in carbonate alkalinity concentration) is the first practical measurable indication that an anaerobic treatment system is in a state of stress. If the system is not rectified at this early stage, failure is likely. Current methods for VFA measurement include distillation, colorimetry, gas chromatography and various titration techniques. In terms of simplicity, speed and cost-effectiveness it is generally accepted that titration methods are superior for the purpose of on-site routine monitoring and control, particularly in developing countries. This paper reviews the methods published in the last four decades concerning on-site titration measurement of VFA and carbonate alkalinity concentrations. The review encompasses the following: aquatic chemistry related to the theory on which most of the methods are based, and a detailed description of each of the principal methods published followed by critical and comparative evaluation.  2004 Society of Chemical Industry
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    • ...Thus, alkalinity determinations are of value in anaerobic digesters and anaerobic wastewater treatment (Ward and Hobbs, 2011; Lahav and Morgan, 2004; Damasceno et al, 2007), mine drainage and associated waters (Kirby and Cravotta, 2005a, 2005b; McAllan et al, 2009), coastal seawaters (Muller and Bleie, 2008; Watanabe et al, 2004), marine aquaculture (Pfeiffer et al, 2011), estuarine waters (Gray et al, 2008), groundwater (Mapherson, 2009), geothermal waters (Verma, 2004), foods and beverages (Wen et al, 2004), and hydrogen carbonate in the presence of carboxylic acids, ie, river water and wastewater from a paper-production plant (Gross and Nemarnik, 2007), as examples of recent applications...

    Tadeusz Michałowskiet al. New Approaches in Modeling Carbonate Alkalinity and Total Alkalinity

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