Anaerobic co-digestion of different wastes in a UASB reactor

Waste Management
Khushboo KumariK Sudhakar

Abstract

Anaerobic co-digestion has made a greater impact on the biogas production from mixing different type of waste. In this research, sewage sludge (SS) and cow manure (CM), was used as a primary waste along with kitchen waste (KW), yard waste (YW), floral waste (FW) and dairy wastewater (DWW) as co-substrate for anaerobic digestion. Mixtures with a ratio of 1:2 ratio is fed into a single stage up-flow anaerobic sludge blanket (UASB) reactor. Digestion was carried out in a mesophilic temperature range for 20 days. pH and VFA were measured and ranged from 5 to 7.5 and 3500-500 mg/L, respectively, for all the mixtures throughout the digestion period. Percentage of COD removal efficiency after 20 days was found to be in the range of 76-86%. The maximum biogas production rate was found to be 4500 mL/day. Characterization of the final residue from each of the digesters was carried out by Scanning Electron microscope, Energy dispersive, thermogravimetric, FTIR Spectra, and Atomic microscope. Thermal analysis reveals that spent sludge can be potential waste energy sources.

Citations

Jul 23, 2019·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Mentore Vaccari, Francine Duarte Castro
Aug 8, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Val S FrenkelWalter Z Tang
Jul 9, 2020·Frontiers in Bioengineering and Biotechnology·Günther BochmannWolfgang Gabauer
Nov 28, 2021·Water Environment Research : a Research Publication of the Water Environment Federation·S Mariraj Mohan, T Swathi

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biofuels (ASM)

Biofuels are produced through contemporary processes from biomass rather than geological processes involved in fossil fuel formation. Examples include biodiesel, green diesel, biogas, etc. Discover the latest research on biofuels in this feed.

Related Papers

Water Science and Technology : a Journal of the International Association on Water Pollution Research
Tarek ElmitwalliRalf Otterpohl
Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
Hai-Lou XuJoo-Hwa Tay
© 2022 Meta ULC. All rights reserved