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      Settling of bentonite in gelatine solutions

      Shamshudin, Rashid; Verbeek, Casparus Johan R.; Lay, Mark C.
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      Rashid Shamshudin Settling.pdf
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      Shamshudin, R., Verbeek, C.J.R., Lay, M.C. (2011). Settling of bentonite in gelatine solutions. Paper presented at SCENZ-IChemE annual conference in New Zealand, University of Waikato, New Zealand; 1-2 December 2011.
      Permanent Research Commons link: https://hdl.handle.net/10289/6542
      Abstract
      New Zealand has a sizeable meat by-products processing industry, associated with significant aqueous effluent called stickwater. Stickwater has a biological oxygen demand of 50-150 g O₂/l and has to be treated prior to disposal. Currently, stickwater is dried and added to meat and bone meal in some inedible meat rendering plants. In edible rendering plants, the gelatin can be removed and the remaining broth is concentrated as a flavor enhancer. Where no further unit operations are carried out on stickwater, the stickwater must be treated to reduce the BOD. A medium size meat rendering plant in NZ can produce up to 30,000 L of stickwater at 2-5% solids

      per day¹. In Hamilton, waste water treatment costs NZ$0.90 per kg solids or approximately NZ$1350 per day. In comparison, abattoir waste treatment costs NZ$ 0.23/kg in the US.²
      Date
      2011
      Type
      Conference Contribution
      Collections
      • Science and Engineering Papers [3118]
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