Author : Maria LuizaVeroneze, DanielSchwantes, Affonso CelsoGonçalvesJr., AlfredoRichart, JéssicaManfrinAndréiada Paz SchillerThiago BanaSchuba

Address : (aState University of Western Paraná, Postgraduate Program in Energy Engineering in Agriculture, Campus of Cascavel, Universitária Street, 2069, Jardim Universitário, Cascavel, Paraná State, 85819-110, Brazil Educational College of Medianeira, 1820 Rio Branco Street, Downtown, Medianeira, State of Paraná, 85884-000, Brazil State University of Western Paraná, Postgraduate Program in Agronomy, Campus of Marechal Cândido Rondon, Pernambuco Street, 1777, Centro, Marechal Cândido Rondon, Paraná State, 85960-000, Brazil Pontifical Catholic University of Paraná, Agronomy, Campus of Toledo, Union Avenue, 400, Jardim Coopagro, Toledo, Parana State, 85902-532, Brazil)

Abstract : Production of biogas and biofertilizer using anaerobic reactors with swine manure and glycerin doses

Journal : Journal of Cleaner Production

Volume No. : Volume 213

Publish Year : 2019

Page No. : 176-184

Main Data : This research aims to evaluate the development of biodigestion of swinemanure with addition of glycerin doses, in order to promote a cleanerdestination for both of these wastes in agroindustry, adopting different concentrations for a better relation of biogas production and biostabilized fertilizer. For this, five anaerobic biodigestors were developed, each reactorwas fed with swine manure considering four treatments (5%, 10%, 15% and 20% vv-1 of glycerin). The physical-chemical parameters (temperature, pH, turbidity, solids series, total phosphorus, total nitrogen (Kjeldahl), and COD were evaluated every seven days, moreover the biogas production was monitored daily by a gasometer. The concentrations of Cu, Zn, Mn, Fe, Cd, Pb and Cr during hydraulic retention time (HRT) were determined by Flame Atomic Absorption Spectrometry (FAAS). Anaerobic co-digestion of swine and glycerin wastes didn't provided higher biogas production than the biodigestion without the addition of glycerin. The biogas production rates were impaired by the addition of glycerin doses higher than 5%, and the results demonstrate that the nutrient concentrations in the biostabilized waste are expressive for vegetal biofertilization, mainly for N, P, K, Ca, Mg and micronutrients such as Cu and Zn. Keywords: Renewable energy; Biofuel; Glycerin; Co-digestion; Biogas production