Abstract
High-efficiency resource recovery from municipal solid waste (MSW) has been a focus of attention. The objective of this research is to develop a bio-pretreatment process for application prior to the anaerobic digestion of MSW to improve methane productivity. Bacillus licheniformis was used for pretreating MSW (non-flocculated with 0.07% citric acid), followed by anaerobic digestion. Laboratory-scale experiments were carried out in semi-continuous bioreactors, with a total volume of 5 L and working volume of 3 L. Among the nine organic loading rates (OLRs) investigated, the OLR of 0.84 kg SS m(-3) reactor day(-1) was found to be the most appropriate for economic operation of the reactor. Pretreatment of MSW prior to anaerobic digestion led to 55% and 64% increase of suspended solids (SS) and volatile solids reduction, respectively, with an improvement of 57% in biogas production. The results indicate that the pretreatment of non-flocculated sludge with Bacillus licheniformis which consumes less energy compared to other pretreatment techniques could be a cost-effective and environmentally sound method for producing methane from MSW.
References
Jan 11, 2001·Applied Microbiology and Biotechnology·L BjörnssonB Mattiasson
Sep 27, 2003·Water Research·John T NovakSudhir N Murthy
Dec 3, 2005·Waste Management·Edgar Fernando Castillo MA Victor Arellano
Mar 10, 2007·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Md Wahid Murad, Chamhuri Siwar
Jun 5, 2007·Journal of Biotechnology·J WawrzynczykE Szwajcer Dey
Jul 14, 2007·Water Research·Allan Elliott, Talat Mahmood
Sep 30, 2008·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Azize AyolErsan Kuzyaka
Nov 4, 2011·Bioresource Technology·R Uma RaniJ Rajesh Banu
Nov 19, 2011·Journal of Environmental Monitoring : JEM·Richard J C Brown, Peter T Woods
Citations
Mar 22, 2014·Bioresource Technology·Minbo HuoLixiang Zhou
Dec 25, 2015·Environmental Technology·Xiao WangQi Zhou
Feb 16, 2016·Environmental Technology·Qiwei JianYin Pan
Mar 31, 2016·Environmental Science and Pollution Research International·Parvathy EswariJ Rajesh Banu
Jul 25, 2015·Waste Management·C Arun, P Sivashanmugam
Mar 25, 2015·Environmental Technology·Dongzhe LiWun Jern Ng
Mar 17, 2015·Bioresource Technology·A Vimala EbenezerJ Rajesh Banu
Oct 4, 2014·Bioresource Technology·S KavithaJ Rajesh Banu
Dec 22, 2014·Bioresource Technology·Jonathan W C WongKumarasamy Murugesan
Aug 26, 2014·Environmental Technology·Petros Gikas
Sep 2, 2014·Environmental Technology·Gopi Krishna KafleLide Chen
Mar 10, 2017·Environmental Technology·Iqra SharafatNaeem Ali
Jul 18, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Qingfang ZhangZengye Yang
Apr 28, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Liang GuoZonglian She
Feb 28, 2019·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Klaudiusz GrübelMiroslav Černík