Abstract
In this study, the biochemical CH4 potential, rate, biodegradability, NaOH treatment and the influence of chemical composition on CH4 yield of yard wastes generated from seven trees were examined. All the plant parts were sampled for their chemical composition and subjected to the biochemical CH4 potential assay. The component parts exhibited significant variation in biochemical CH4 potential, which was reflected in their ultimate CH4 yields that ranged from 109 to 382 ml g(-1) volatile solids added and their rate constants that ranged from 0.042 to 0.173 d(-1). The biodegradability of the yard wastes ranged from 0.26 to 0.86. Variation in the biochemical CH4 potential of the yard wastes could be attributed to variation in the chemical composition of the different fractions. In the Thespesia yellow withered leaf, Tamarindus fruit pericarp and Albizia pod husk, NaOH treatment enhanced the ultimate CH4 yields by 17%, 77% and 63%, respectively, and biodegradability by 15%, 77% and 61%, respectively, compared with the untreated samples. The effectiveness of NaOH treatment varied for different yard wastes, depending on the amounts of acid detergent fibre content. Gliricidia petals, Prosopis leaf, inflorescence and immature pod, Tama...Continue Reading
References
Oct 1, 1991·Journal of Dairy Science·P J Van SoestB A Lewis
May 1, 1974·Applied Microbiology·T L Miller, M J Wolin
Jul 4, 2006·Bioresource Technology·V Nallathambi Gunaseelan
Apr 17, 2007·Waste Management·Mufeed SharholyR C Trivedi
Jan 20, 1984·Science·R H Atalla, D L Vanderhart
Apr 15, 2008·Bioresource Technology·Alastair J WardDavid L Jones
Apr 29, 2008·Bioresource Technology·Andrea SchievanoFabrizio Adani
Jan 1, 1983·Biotechnology and Bioengineering·M R LadischG T Tsao
Mar 1, 1985·Biotechnology and Bioengineering·S G Pavlostathis, J M Gossett
Dec 1, 1986·Biotechnology and Bioengineering·A G Hashimoto
Mar 11, 2009·Water Science and Technology : a Journal of the International Association on Water Pollution Research·I AngelidakiJ B van Lier
Mar 17, 2009·Bioresource Technology·V Nallathambi Gunaseelan
May 26, 2009·Journal of Hazardous Materials·Yunqin LinChunmin Wang
Jun 26, 2009·Bioresource Technology·M Sinan BilgiliGamze Varank
Nov 6, 2010·Bioresource Technology·Rodrigo A LabatutNorman R Scott
Feb 10, 2012·Waste Management·Ramin YazdaniGeorge Tchobanoglous
Sep 3, 2013·World Journal of Microbiology & Biotechnology·Zhikai ZhangGuangwen Xu
Jan 9, 2014·Bioresource Technology·Xiang ChenMehri Sanati
Feb 13, 2014·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Victor Nallathambi Gunaseelan