Odor from anaerobic digestion of swine slurry: influence of pH, temperature and organic loading

Ortiz, Gerardo; Villamar, Cristina Alejandra; Vidal, Gladys

doi:10.1590/0103-9016-2013-0372

Cited by 5 publications

(4 citation statements)

References 19 publications

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“…Five brazilian publications (5% of the total) belong to authors from Italy Urbini, 2014 andRaboni et al, 2015), Chile (Ortiz et al, 2014), Argentina (Fuentes et al, 2009) andColombia (Cañon-Franco et al, 2012). This finding shows that the Brazilian journals are well-referenced, with a high impact factor and high JCR in the area of environmental sciences, since outside the country the quality of production is measured by means of these two indices.…”

Section: Resultsmentioning

confidence: 99%

Energy management: a synthesis of scientific publications on biodigestion for waste management

Andreazzi¹,

Mendes²,

Oliveira³

et al. 2017

Rev. ambiente água

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Environmentally friendly options for waste disposal and the need for expansion and diversification of the national and international energy matrix are relevant issues today. One technique that supports these goals is anaerobic biodigestion, which generates clean energy from biomass. Accordingly, our goal was to perform a quantitative and qualitative assessment of scientific publications on biodigestion in order to understand the evolution of the technique, which is essential for environmental and economic sustainability. Ninety-nine articles indexed in the Scientific Electronic Library Online between 1980 and 2015 were evaluated. The results showed a significant increase in scientific publications since 2000 which addressed, in addition to environmentally friendly waste management, the energy issue, with the use of biogas. This increase in the number of publications coincides with increased awareness on natural resource management and concern about global energy management. Most of the articles involved a general evaluation of the process, using mainly animal waste from pigs, and emphasizing biodigestion as waste management, since pig farming produces a large volume of waste and has a high environmental impact.Keywords: anaerobic fermentation, biogas, energy, brazilian scientific publications, waste management. Gestão energética: uma síntese dos indicadores quantitativos sobre biodigestão RESUMOOpções ambientalmente corretas de destinação de resíduos e a necessidade de ampliação e diversificação da matriz energética nacional e internacional são assuntos pertinentes na atualidade. Uma das técnicas capaz de atender estas premissas é a biodigestão anaeróbica, que gera energia limpa a partir de biomassa. Desta forma, o objetivo deste trabalho foi realizar uma avaliação quanti e qualitativa sobre o tema biodigestão, entendendo o comportamento científico das publicações sobre esta técnica, fundamental para a sustentabilidade ambiental e econômica. nas publicações científicas a partir de 2000, que abordavam, além da gestão de resíduos ambientalmente correta, a questão energética, com o uso do biogás. Este aumento nas publicações coincide com a maior conscientização acerca dos cuidados com os recursos naturais e a preocupação com a gestão energética mundial. A maioria dos artigos discutiu sobre a avaliação geral do processo, empregando dejetos animais, principalmente de suínos, enfatizando a biodigestão como gestão de resíduos, visto que a suinocultura gera um grande volume de dejetos e ocasiona elevado impacto ambiental.Palavras-chave: biogás, energia, fermentação aneróbica, manejo de dejetos, publicações científicas brasileiras.

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Section: Resultsmentioning

confidence: 99%

Energy management: a synthesis of scientific publications on biodigestion for waste management

Andreazzi¹,

Mendes²,

Oliveira³

et al. 2017

Rev. ambiente água

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“…In general, the low food-digestibility (<30% protein) of monogastrics (swine) and polygastrics (cattle) generates wastewater (slurries) with high organic content (2.6-24.9 g COD/L) [32][33][34]. The organic matter, upon reaching the soil during irrigation, is partially degraded (the first 5 days under incomplete anaerobic digestion), generating volatile fatty acids, which are odor precursors [35]. In addition, it favors the accumulation (A-horizon from soil) of more than 99% of pathogens and nutrients (10 7 CFU/100 mL and 2.5 g NH 4 + /L), which increases the health risk in irrigated crops [36,37].…”

Section: Livestock Wastewater Management and Recycling And Its Potenmentioning

confidence: 99%

“…Both types of irrigated cultivation support the domestic market during winter. The central zone (33)(34)(35)(36)(37)(38)(39)(40)(41)(42) • S) includes from Valparaiso to Los Lagos Regions, where there exists a medium-sized water supply (100-4000 m 3 /s) and most of the country's irrigated agriculture is located. Chile maintains its irrigated agricultural production in the central zone for internal consumption and exportation, which is based on fruit trees and cereal crops.…”

Section: Introductionmentioning

confidence: 99%

Reuse and Recycling of Livestock and Municipal Wastewater in Chilean Agriculture: A Preliminary Assessment

Villamar-Ayala

Vera-Puerto

Rivera

et al. 2018

Water

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Chile is an agricultural power, but also one of the most vulnerable countries to climate change and water shortage. About 50% of the irrigated agriculture land in Chile is in the central zone, thanks to its agricultural-climatic characteristics that provide an adequate water supply (100-4000 m 3 /s). However, the vulnerability scenario in this zone is high due to the seasonal availability of water resources. Therefore, opportunities to use non-conventional alternative sources (e.g., wastewater) become an appealing and feasible option due to the high population and animal density (>76%) in this part of the country. Moreover, the physicochemical characteristics of the municipal and livestock wastewater suggest that there are potential opportunities to recycle nutrients for agricultural production. In Chile, wastewater reuse opportunities are noted by the wide coverage of wastewater treatment programs, with municipal and intensified livestock production taking up most of the percentage (>99%). Nevertheless, more than 70% of wastewater treatment systems reach biological secondary treatment, which suggests reuse possibilities only for non-food crops. Therefore, this paper is focused on a preliminary analysis of the potential of reusing and recycling municipal and livestock wastewater for Chilean agriculture. There is some reuse work occurring in Chile, specifically in the use of municipal and livestock wastewater for cereal crops (animal feed), forests, and grasslands. However, aspects related to the long-term effects of these practices have not yet been evaluated. Therefore, municipal and livestock wastewater in Chile could be re-valued in agriculture, but the current quality and condition of treated wastewater do not ensure its safe use in food crops. In addition, state policies are needed to provide sustainability (circular and ethic economy) to water reusing/recycling in agriculture.

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“…La implementación de tecnologías de punta en la crianza de cerdos y el impulso que recibe el sector porcino peruano desde el Ministerio de Agricultura (MINAGRI, 2011) hacen prever su crecimiento continuo. La crianza porcina intensiva reúne un elevado número de animales por área (Córdova et al, 2017), e implica la generación de grandes cantidades de residuos sólidos y líquidos, que deben ser manejados de manera apropiada (Serafine et al 2015;Córdova et al, 2017;Xu et al, 2016;Bosco et al, 2016;Amaral et al, 2014), porque de lo contrario pueden originar problemas ambientales (Cho et al, 2013;Antezana et al, 2016) asociados con su alto contenido en materia orgánica y nutrientes (Cho et al, 2013), tales como, malos olores (Xu et al, 2016;Ortiz et al, 2014), emisión de gas metano (Xu et al, 2016;Antezana et al, 2016) y contaminación del agua superficial y subterránea (Xu et al, 2016). En este contexto, investigaciones previas (Ramires y Oliveira et al, 2014;Pinto et al, 2014;Urbinati, et al, 2013;Duda et al, 2011;Santana et al, 2005;Foresti et al, 1995;Urbinati et al, 2014) presentan al reactor UASB como una tecnología eficaz en la remoción de materia orgánica de las aguas residuales derivadas de la porcicultura intensiva, con eficiencias de eliminación de DQO mayores al 55%, operando a temperaturas en el rango mesofílico y a velocidades de carga orgánica (VCO) entre 1,2 y 40 kg DQO.m -3 .d -1 .…”

Section: Introductionunclassified

Start-up of a UASB reactor for the treatment of wastewater from the intensive breeding of pigs

Tapia¹,

Vela²,

Miglio³

et al. 2018

Agroind. Sci.

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Odor from anaerobic digestion of swine slurry: influence of pH, temperature and organic loading

Cited by 5 publications

References 19 publications

Energy management: a synthesis of scientific publications on biodigestion for waste management

Energy management: a synthesis of scientific publications on biodigestion for waste management

Reuse and Recycling of Livestock and Municipal Wastewater in Chilean Agriculture: A Preliminary Assessment

Start-up of a UASB reactor for the treatment of wastewater from the intensive breeding of pigs

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