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Intensification of A gro and F ood I ndustry W aste B iodegradation P rocess

Intensification of A gro and F ood I ndustry W aste B iodegradation P rocess. Marina Tišma, Natalija Velić, Mario Panjičko, Bruno Zelić. Outlook. Process Intensification Modeling, Simulation and Optimization Waste Preatretment Scale-up – Mobile Pilot Plant.

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Intensification of A gro and F ood I ndustry W aste B iodegradation P rocess

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  1. Intensification of Agro and Food Industry Waste Biodegradation Process Marina Tišma, Natalija Velić, Mario Panjičko, Bruno Zelić

  2. Outlook • Process Intensification • Modeling, Simulation and Optimization • Waste Preatretment • Scale-up – Mobile Pilot Plant

  3. Process Intensification – Modeling, Simulation, Optimization B. Zelić, Đ. Vasić-Rački, Kem. Ind., 54 (2005) 241-254

  4. Process Intensification – Whey and CowManureCo-DigestionProcess Optimization (A) mesophilicconditions without alkalinity addition; (B) thermophilic conditions without alkalinity addition; (C) mesophilic conditions with alkalinity addition; (D) thermophilic conditions with alkalinity addition A. Hublin, T. Ignjatić Zokić, B. Zelić, Biotechnol. Bioproc. Eng., 17 (2012) 1284-1293

  5. Process Intensification –Whey and Cow Manure Co-Digestion Process Modeling Proposed reaction sheme 1. hydrolysis; 2. fermentation; 3. anaerobic oxidation; 4. acetogenesis; 5. acetoclasticmethanogenesis; 6. hydrogenotrophicmethanogenesis

  6. Process Intensification – Whey and CowManureCo-DigestionProcess Modeling Mass balances Kinetic model

  7. Process Intensification – Whey and CowManureCo-DigestionProcess Validation and Simulation A. Hublin, B. Zelić, Waste Manage. Res., 31 (2013) 353-360

  8. Process Intensification – Waste Preatretement Degradation of lignin in sugar beet waste by white rot fungiTrametes versicolor and Phanerochaetechrysosporium cultivated in solid state culture

  9. Process Intensification – Waste Preatretement Sugar beet waste degradationafter 30 days of solid state fermentation P. chrysosporium - 19.62 % of loss of weight - 35 % lignin conversion T. versicolor C : N = 36.8 : 1 t = 0 day - 29.33 % of loss of weight - 55 % lignin conversion

  10. Process Intensification Intensification of Heat and Mass Transport Reduced Size Large Surface to Volume Ratio (105 – 106 m2 m-3) Fast Screening of Materials, Catalyst and Processes Flexibility in Capacity and in Design Operating Robustness and Controllability Lower Cost of Transportation of Material and Energy Replacing Batch with Continuous Processes COSTS !!!!! Treatment of Waste Streams ????? Microreactor (10-5 dm3) Flask (10-1 dm3) Pilot scale bioreactor(103 dm3) Lab scale bioreactor(101 dm3)

  11. Center for Environmental Techology, Brodarski institut d.d. Aerobic Bioreactor Anaerobic Bioreactors Lab scale Pilot scale Designedby:

  12. Center for Environmental Techology, Brodarski institut d.d. Aerobic Bioreactor Anaerobic Bioreactors Lab scale Mobile Pilot Plant • - remote process control over the Internet using remote-control computing software Designedby:

  13. Mobile Pilot Plant Two Solid State Reactors - solid waste - a(na)erobic conditions -V= 200 dm3 Anaerobic Reactor - liquid waste - a(na)erobic treatment of wastewaters - stirring and pH regulation - V= 300 dm3 UASB Reactor - Upflow Anaerobic Sludge Blanket Reactor - anaerobic treatment of sludge samples - V= 40 dm3

  14. Biogas Production from Brewery Spent Grain Brewery Laško • Capacity:100,000,000 L of brewannually • Project: treatment of brewery waste streams • Wastewater – done • Yeast – done • Spent grain – development in progress • Brewery spent grain: • lignocellulosic material containing about 17% cellulose, 28% non-cellulosic polysaccharides, mostly arabinoxylans, and 28% lignin • 0.6-1.2 m3/kg dry organic matter → 120-130 m3biogas/ton • total usable biogas potential: • biogas 1,600,000-2,000,000 m3 • 50-55 % renewable in total energy (up to 1.5 mio € annual savings)

  15. Process Development - Biogas Production from Brewery Spent Grain Biogas Brewery wastewater HCl Anaerobic digestion Brewery spent grain Liquid phase Hydrolysis Biogas Wastewater Solid phase UASBR Solidresidue less than 10%

  16. Ackonwledgment

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