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  • Aerators Enhance Aerobic Digester Process
    In 2003, Eden WWTP staff became aware of floating brush rotor aerators as a potential approach to providing oxygen transfer and mixing in the aerobic digester. AERATORS ENHANCE AEROBIC DIGESTION PROCESS. After installing four 20-hp aerators, the city of Eden, N.C., happy with performance, results
  • New analysis methods for digester management
    NEW ANALYSIS METHODS FOR BETTER DIGESTER MANAGEMENT Elektroniikkatie 9, FIN-90570 Oulu, Finland Kehr a am ontie 3, FIN-87101 Kajaani, Finland Lentokent ankatu 11, FIN-33100 Tampere, Finland kraft cooking (continuous/batch), alkali to wood ratio, white liquor addition, residual alkali, alkali
  • Pulp and paper facilities
    . Pulpmill. The fiberline consists of a high performance batch digester system or continuous digester system, a screen room, 2-stage oxygen delignification with displacement press washers for brown stock and post-oxygen washing, and an ECF bleaching system Some thought is being given for future
  • Pulp and Paper Industry
    The pulp and paper industry uses various chemicals to process pulp, both directly and indirectly. Hydrogen sulfide is created as a by-product of the digester process. Chlorine and chlorine dioxide are used during the bleaching process, while combustible gas detection is used during the drying
  • Implementation of an improved controller
    IMPLEMENTATION OF AN IMPROVED MODEL BASED CONTROLLER ON A BATCH PULP DIGESTER: VERIFICATION OF PREDICTIONS C. Sandrock and Philip L. de Vaal Department of Chemical Engineering, University of Pretoria, Pretoria 0001, South Africa process modelling, batch digester, digester control, kinetic
  • Pressure Control In a Biogas Generator
    White paper article describing pressure control inside anaerobic digesters. Using a precision back pressure regulator to control the pressure inside the structure surrounding an anaerobic digester allows for a uniform steady pressure to be maintained. This precision pressure control under varying
  • Case Study: Taskmaster (R) Grinder Contributes to BioFuel Production
    and processed in an anaerobic digester. Methane is released which fuels a turbine that generates electricity. Enough power is generated to meet most of the daily needs of the 159 acre dairy. Taskmaster Contributes to Biofuel Production. Home. About. Products. Industrial. Dry Processing. Wet Processing
  • Applications of physical models for control
    and steady state process model has been made, optimisation constraints have to be added. For the digester these are maximum yield at a given production rate and kappa number at lowest possible cost. In the paper machine area it may be to produce the right quality at lowest possible cost with respect

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