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Anaerobic digestion of chicken manure by a leach-bed process coupled with side-stream membrane ammonia separation
Alper Bayrakdar1, Recep Önder Sürmeli2, Baris Çalli3
1Environmental Engineering Department, Marmara University, 34722 Kadikoy, Istanbul, Turkey; Environmental Engineering Department, Necmettin Erbakan University, 42140 Meram, Konya, Turkey.
Abstract:
This study pioneered the use of a single-stage methanogenic leach bed reactor (LBR) for high-solids (total solid content: 14%-16%) anaerobic mono-digestion of chicken manure. Chicken manure was loaded into the LBR in cloth sachets without adding any bulking agents. Ammonia was separated and recovered by placing a hydrophobic gas diffusion membrane in a leachate collection chamber. Methane production in the membrane-integrated LBR was 0.272 m3/kgVS and 2.3 times higher than that in the control LBR. The results revealed that using membrane-integrated LBR for anaerobic digestion is a simple and cost-efficient technology for the mono-digestion of chicken manure and ammonia removal.
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