caa a22 4500 605502161 CHVBK 20210128100604.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00253-015-6486-4 doi (NATIONALLICENCE)springer-10.1007/s00253-015-6486-4 Effects of feedstock carbon to nitrogen ratio and organic loading on foaming potential in mesophilic food waste anaerobic digestion [Elektronische Daten] [Musa Tanimu, Tinia Mohd Ghazi, Mohd Harun, Azni Idris] Foaming problem which occurred occasionally during food waste (FW) anaerobic digestion (AD) was investigated with the Malaysian FW by stepwise increase in organic loading (OL) from 0.5 to 7.5g VS/L. The FW feedstock with carbon to nitrogen (C/N) ratio of 17 was upgraded to C/N ratio of 26 and 30 by mixing with other wastes. The digestion which was carried out at 37°C in 1-L batch reactors showed that foam formation initiated at OL of 1.5g VS/L and was further enhanced as OL of feedstock was increased. The digestion foaming reached its maximum at OL of 5.5g VS/L and did not increase further even when OL was increased to 7.5g VS/Ld. Increase in the C/N ratio of feedstock significantly enhanced the microbial degradation activity, leading to better removal of foam causing intermediates and reduced foaming in the reactor by up to 60%. Springer-Verlag Berlin Heidelberg, 2015 Organic loading nationallicence Anaerobic digestion nationallicence Foaming nationallicence Carbon to nitrogen ratio nationallicence Biogas methane nationallicence Tanimu Musa Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia aut Mohd Ghazi Tinia Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia aut Harun Mohd Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia aut Idris Azni Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia aut Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/10(2015-05-01), 4509-4520 0175-7598 99:10<4509 2015 99 253 https://doi.org/10.1007/s00253-015-6486-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-015-6486-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tanimu Musa Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia aut NATIONALLICENCE 700 1- Mohd Ghazi Tinia Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia aut NATIONALLICENCE 700 1- Harun Mohd Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia aut NATIONALLICENCE 700 1- Idris Azni Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/10(2015-05-01), 4509-4520 0175-7598 99:10<4509 2015 99 253