CEST Proceedings are published under the ISSN 2944-9820.
High-rate anaerobic co-digestion of agro-industrial wastes combined with ammonia recovery and biogas purification
Eftaxias A., Georgiou D., (Corresponding) Diamantis V., Koumara A., Koskinari M., Aivasidis A.
Topic:
Environmental biotechnology and bioenergy
Screened dairy manure, pressure-sterilized animal by-products, and cheese whey were co-digested in a Plug Flow Reactor (PFR) over a period of 150 days. The mixture was characterized by TCOD = 70±8 g/L, SCOD = 26±6 g/L, NH4-N = 1.5±0.3 g/L, TSS = 20±5 g/L, VSS = 18±6 g/L, TS = 33±5 g/L, VS = 26±2 g/...Read more
Spyridonidis A., Vasiliadou I., (Corresponding) Stamatelatou K.
Topic:
Environmental biotechnology and bioenergy
The biological upgrade of biogas to biomethane (CH4 > 90%) is a popular emerging technology, since the produced CO2 is not removed but is converted to biomethane using hydrogen (H2). The initial aim of the present study is the acclimatization of a microbial population derived from a typical...Read more
Exploring the effects of static magnetic fields for the enhanced valorization of sewage sludge by anaerobic digestion
(Corresponding) Di Costanzo N., Cesaro A., Di Capua F., Mascolo M., Esposito G.
Topic:
Waste management
Anaerobic digestion (AD) is an interesting and sustainable option to handle sewage sludge (SS), as it generates a methane-rich biogas and a digestate with potential fertilizing properties. Several strategies have been proposed to enhance AD performances and the valorization of SS. Among these, the...Read more
Keywords:
static magnetic fields, sewage sludge, anaerobic digestion, biomethane, nutrient recovery.
Direct upgrading of biogas produced by anaerobic digestion: preliminary results at laboratory scale
Bonaccorsi L., Fazzino F., Fotia A., Malara A., Pedullà A., (Corresponding) Calabrò P.
Topic:
Environmental biotechnology and bioenergy
The present study investigated, at laboratory scale, the possibility of achieving biogas upgrading with a single step of treatment, namely without involving any pre- or post-treatment or multiple stage recirculation. In this respect, three commercial molecular sieves (i.e., Honeywell 13X, 4A, and...Read more
Keywords:
anaerobic digestion, biogas upgrading, biomethane, CO2 adsorption, molecular sieves
