Simultaneous biofiltration of H 2 S and NH 3 using compost mixtures from lignocellulosic waste and chicken manure as pac
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WASTE AND BIOMASS MANAGEMENT & VALORIZATION
Simultaneous biofiltration of H2S and NH3 using compost mixtures from lignocellulosic waste and chicken manure as packing material Diana Vela-Aparicio 1,2
&
Daniel F. Forero 3 & Mario A. Hernández 4 & Pedro F. B. Brandão 2 & Iván O. Cabeza 3
Received: 17 April 2020 / Accepted: 10 September 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Biofiltration offers an efficient and economical alternative for the elimination of offensive odors caused by hydrogen sulfide, ammonia, and volatile organic compounds. Considering that packing materials affect the performance and represent the main installation cost, the purpose of this work was to evaluate the biofiltration of H2S and NH3 comparing three composted mixtures made from chicken manure and lignocellulosic residues (pruning waste, sugarcane bagasse, and rice husk) used as packing material. A range of gas concentrations similar to those of a municipal WWTP was used in the biofiltration of a contaminated stream performed on a laboratory scale. The results indicate that at low concentrations of H2S (6–36 ppm) and NH3 (0–1 ppm), the three biofilters showed 100% removal efficiency. Now, at the maximum levels of gas concentrations of H2S (250 ppm) and NH3 (19 ppm) while the removal efficiency of H2S remained higher than 90% in all cases, the removal efficiency of NH3 remained higher than 90% only in the sugarcane bagasse biofilter. Compost mixtures with sugarcane bagasse and rice husk are highly reliable as packing material for biofiltration at high concentration of H2S. Specifically, the sugarcane bagasse mixture had the highest removal efficiency (99% H2S and 95% NH3) and the highest elimination capacity (15 g H2S/m3h and 0.6 g NH3/m3h), making it a better option for the elimination of both gases. These results represent a contribution to the construction of a low-price elimination system of offensive odors in WTTPs and other industries. Keywords Biofiltration . Compost . Lignocellulosic wastes . Packing materials . Hydrogen sulfide . Ammonia
Introduction Wastewater treatment plants (WWTP) are considered significant sources of gaseous emissions, including offensive odors and greenhouse gases (Alfonsín et al. 2015). The main compounds that produce odor in a WWTP are volatile compounds of sulfur such as hydrogen sulfide (H2S), nitrogen compounds Responsible editor: Philippe Garrigues * Diana Vela-Aparicio [email protected] 1
Instituto de Biotecnología, Universidad Nacional de Colombia - Sede Bogotá, Bogotá D.C., Colombia
2
Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia - Sede Bogotá, Bogotá D.C., Colombia
3
Facultad de Ingeniería Ambiental, Universidad Santo Tomás, Bogotá D.C., Colombia
4
Departamento de Ingeniería Ambiental, Universidad EAN, Bogotá D.C., Colombia
such as ammonia (NH3), and volatile organic compounds (VOCs) (Easter et al. 2005; Barbusinski et al. 2017). These gases are emitted in livestocks and composting plants; they also represent a form o
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