Noori M. Cata Saady , Adhersh Radhakrishnan, Prediction methodologies give an indication of maximum methane productivity. Biochemical Methane Potential (BMP) tests are a useful tool for determining the best substrate and co-digestion configurations, however there are some methodologies destined to save costs and time from this process by using the theoretical final methane potential of a substrate from its organic composition. Solution for In the lab, I actually produced 23.5 g of methane when my theoretical yield was supposed to be 21.1g of methane. Substrate / Gas Yield / Methane Content . Methodologies based in the elemental composition for the determination of theoretical production fit better with the experimental results and behavior, nevertheless the Gompertz model was capable of predicting the final productivity within the 7th day of experiment, selecting at the same time the co-digestion of 80% OFMSW and 20% Biological sludge as the optimum. Differences exist between the TheoMY and ExpMY because of the assumptions of the Buswell and Mueller’s equation and variation of the experimental conditions. All Published work is licensed under a Creative Commons Attribution 4.0 International License Copyright © 2020 All rights reserved. It converts various biodegradable organic materials to methane; a combustible gas, which is used as fuel. amount of methane produced during a retention time of at least 50 days. Co-digestion of OFMSW and biological sludge could improve economics and productivity. Kinetics of the co-digestion could be obtained with Gompertz and First order models. using their empirical molecular formulae, and their experimentally determined methane yield (ExpMY) as it has been published in the literature. He is specialized in bioprocesses and biotechnologies converting organic waste into biofuel and bioenergy using wet and dry anaerobic digestion. in Environmental Engineering from the University of Technology, Iraq, and Ph.D. from University of Windsor, ON. The gas yield depends on factors such as digesti-bility of the organic matter, digestion kinetics, the retention time in the digester and the digestion temperature. iMedPub LTD Last revised : November 26, 2020, International Journal of Applied Science - Research and Review, Creative Commons Attribution 4.0 International License, China National Knowledge Infrastructure (CNKI), Directory of Research Journal Indexing (DRJI). This equation gives the theoretical value of methane at laboratory conditions: (2) BMP thCOD = n CH 4 R T pVS added where BMP thCOD is the theoretical production at laboratory conditions, R is the gas constant (R = 0.082 atm L/mol K), T is the temperature of the glass bottle(308 K), p is the atmospheric pressure (1 atm), VS added (g) are the volatile solids of the substrate and n CH 4 is the … the calculated methane yield coefficient is 1 to 0.6 L CH4/ g COD removed. What is the percent error? Canada, A1B 3X5, Posters & Accepted Abstracts: Int J Appl Sci Res Rev, Biogas is produced in anaerobic digestion, a bioprocess that contributes to addressing the climate change impacts. Methane yield of any digestible organic material is of prime importance during projects development, and feasibility and economic analysis. We use cookies to help provide and enhance our service and tailor content and ads. COD removal efficiency is around 98% and by calculation, around 40 g/L COD removed (soluble COD value). Copyright © 2014 The Authors. He received prestigious scholarships including three NSERC scholarships. The purpose of this poster is to create a data-bank list of the methane yields of various organic feedstock based on their predicted theoretical methane yield (TheoMY) by Buswell and Mueller’s equation (BM Eq.) That is a given. Gompertz model determine productivities and kinetics within the 7th day of experiment. The biogas amount, methane yield and water uptake are estimated theoretically in this study from the elemental composition of biomass, using Boyle's formula.