| Title: | Performance of semi-continuous anaerobic co-digestion of poultry manure with fruit and vegetable waste and analysis of digestate quality: A bench scale study |
| Author(s): | Bres P; Beily ME; Young BJ; Gasulla J; Butti M; Crespo D; Candal R; Komilis D; |
| Address: | "Instituto Nacional de Tecnologia Agropecuaria (INTA), Instituto de Microbiologia y Zoologia Agricola (IMYZA), Castelar, Buenos Aires, Argentina. Instituto Nacional de Tecnologia Agropecuaria (INTA), Instituto de Ingenieria Rural (IIR), Castelar, Buenos Aires, Argentina. Universidad Nacional de San Martin (UNSAM), Instituto de Investigacion e Ingenieria Ambiental (3IA), CONICET, San Martin, Buenos Aires, Argentina. Department of Environmental Engineering, Democritus University of Thrace, Xanthi, Greece. Electronic address: dkomilis@env.duth.gr" |
| DOI: | 10.1016/j.wasman.2018.10.041 |
| ISSN/ISBN: | 1879-2456 (Electronic) 0956-053X (Linking) |
| Abstract: | "Poultry manure (PM) can contain ammonium and ammonia nitrogen, which may inhibit the anaerobic process. The aim of this work was to evaluate the performance of anaerobic digestion of PM co-digested with fruit and vegetable waste. Two semi-continuous bench scale (19L) stirred tank reactors were used. The operating conditions were: 34.5?ª+ degrees C, 2 gVS/L.d (organic load rate), 28 d of hydraulic retention time and 100 revolutions per m (1?ª+h?ª+x?ª+3 times by day) for the agitation. The reactors were fed PM and a mixture of PM and fruit and vegetable waste (FVW) at equal proportions (based on wet weight). The performance of the anaerobic process was assessed through biogas and methane yields, reduction of organic matter, release of nitrogen compounds and the monitoring of stability indicators (pH, volatile fatty acids (VFA), total (TA) and partial (PA) alkalinity). Moreover, the digestate quality was evaluated to determine potential risk and benefits from its application as biofertilizer. Toxicity was assessed using Daphnia magna immobilization tests. Results showed that biogas and methane yields from PM-FVW were 31% and 32% higher than PM alone, respectively. Values of organic matter, pH, alpha (PA/TA) and VFA revealed that stability was approached in PM and PM-FVW. The co-digestion of PM with FVW led to the highest methane and biogas yields, lower FAN and TAN concentrations, and a better digestate quality compared to mono-digestion of this manure" |
| Keywords: | Anaerobiosis Animals Biofuels Bioreactors Fruit *Manure Methane Poultry *Vegetables Ammonia Anaerobic digestion Fruit waste Toxicity Vegetable waste manure; |
| Notes: | "MedlineBres, Patricia Beily, Maria Eugenia Young, Brian Jonathan Gasulla, Javier Butti, Mariano Crespo, Diana Candal, Roberto Komilis, Dimitrios eng 2018/12/05 Waste Manag. 2018 Dec; 82:276-284. doi: 10.1016/j.wasman.2018.10.041. Epub 2018 Oct 30" |
