MATHEMATICAL MODELS FOR ESTIMATING METHANE PRODUCTION IN COVERED LAGOON BIODIGESTERS TREATING PIG MANURE

Lopes, Juciara O.; Rosa, André P.; Sousa, Izabelle de P.; Oliveira, Nathalia S.; Borges, Alisson C.

doi:10.1590/1809-4430-Eng.Agric.v41n4p438-448/2021

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Scientific Papers, Energy Systems • Eng. agríc. 41 (4) • Jul-Aug 2021 • https://doi.org/10.1590/1809-4430-Eng.Agric.v41n4p438-448/2021 copy

MATHEMATICAL MODELS FOR ESTIMATING METHANE PRODUCTION IN COVERED LAGOON BIODIGESTERS TREATING PIG MANURE

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Covered lagoon biodigesters (CLB) have been widespread in Brazil in the treatment of pig manure. However, the quantification of biogas production in CLB using mathematical models is still limited and scarce. This study aimed to evaluate and compare six mathematical models—Chen-Hashimoto (Chen, 1983), CETESB (2006), COD Conversion (Chernicharo, 2016), IPCC (2006), Deng (Deng et al., 2014), and modified Stover-Kincannon (Yu et al., 1998)—usually used to estimate methane (CH ₄ ), and propose improvements to the models, if necessary. The results were compared with the monitored production (P _actual ) in a farm with CLB using the t-test (α = 5%). The Chen-Hashimoto, IPCC, Deng, and modified Stover-Kincannon models showed no statistical difference compared to P _actual (405.0 m ³ CH ₄ d ⁻¹ ), whereas the CETESB and COD Conversion models presented no statistical difference after the proposed improvements. All models can be considered reliable for estimating volumetric methane production after the adaptations, being relevant tools for diagnosis and decision-making regarding the energy recovery of biogas with CLB operation in pig farms.

biogas; pig manure; anaerobic digestion; modeling

	Chen-Hashimoto (Chen, 1983)	COD Conversion ( Chernicharo, 2016Chernicharo CA ( 2016 ) Reatores anaeróbios . Belo Horizonte , Editora UFMG , 2 ed ampl. 379 p. )	CETESB (2006)CETESB - Companhia de Tecnologia de Saneamento Ambiental ( 2006 ) Manual do usuário do programa de computador Biogás: geração e uso energético - efluentes e resíduo rural - versão 1.0. Secretaria Do Meio Ambiente, Ministério Da Ciência e Tecnologia , São Paulo , CETESB , p. 1 – 61 .	IPCC (2006)IPCC – Intergovernmental Panel on Climate Change ( 2006 ) Emissions from Livestock and manure management . In: Hongmin Dong , Joe Mangino , A R ( Russian F. Jerry L. Hatfield , Donald E. Johnson , Keith R. Lassey , Magda Aparecida de Lima ( Eds .) , IPPC Guidelines for National greenhouse gas inventories . Hongmin Dong , p. 10.1 - 10.87 .	Deng ( Deng et al., 2014Deng L , Yang H , Liu G , Zheng D , Chen Z , Liu Y , Lei , Y ( 2014 ) Kinetics of temperature effects and its significance to the heating strategy for anaerobic digestion of swine wastewater . Applied Energy 134 : 349 – 355 . DOI: https://doi.org/10.1016/j.apenergy.2014.08.027 . https://doi.org/10.1016/j.apenergy.2014.... )	Modified Stover-Kincannon ( Yu et al., 1998Yu H , Wilson F , Tay J ( 1998 ) Kinetic analysis of an anaerobic filter . Water Research 32 ( 11 ): 3341 – 3352 PII: S0043-1354(98)00102-X . )
Mathematical principle	Kinetic	Mass balance	Conversion of consumed energy	Conversion of consumed energy	Kinetic	Kinetic
Effluent source	Pigs	Domestic sewage	Pigs, cattle, horses, poultry, and urban sewage	Pigs, buffalo, and cattle	Pigs	Soybean wastewater
Reactor	Anaerobic biodigester	UASB	–	–	Anaerobic sequencing batch digester	Anaerobic filter
Temperature	30–60 °C	³ 15 °C	–	10–28 ° C (average annual room temperature)	15–35 ° C	34–36 ° C
Organic concentration	13–65 kg VS m ⁻³	–	–	–	–	4.60–9.27 kg COD m ⁻³
Loading	–	2.5–3.5 kg COD m ⁻³ d ⁻¹	–	–	1.21–3.87 kg TS m ⁻³ d ⁻¹	4.41–22.25 kg COD m ⁻³ d ⁻¹
Methane yield	0.32–0.52 m ⁻³ CH ₄ kg ⁻¹ VS	–	–	0.29–0.48 m ³ CH ₄ kg ⁻¹ VS (variable with country or region)	–	–
Solid production	–	0.11–0.23 kg COD _sludge kg ⁻¹ COD _applied	–	–	–	–
Design/applicability	Laboratory and pilot experiment	Pilot and full scale	Inventory of CH ₄ emissions generated by anaerobic waste degradation in Brazil	Inventory of CH ₄ emissions generated by anaerobic waste degradation	Laboratory experiment	Laboratory, pilot, and full-scale experiment

	Chen-Hashimoto (Chen, 1983)	COD Conversion ( Chernicharo, 2016Chernicharo CA ( 2016 ) Reatores anaeróbios . Belo Horizonte , Editora UFMG , 2 ed ampl. 379 p. )	CETESB (2006)CETESB - Companhia de Tecnologia de Saneamento Ambiental ( 2006 ) Manual do usuário do programa de computador Biogás: geração e uso energético - efluentes e resíduo rural - versão 1.0. Secretaria Do Meio Ambiente, Ministério Da Ciência e Tecnologia , São Paulo , CETESB , p. 1 – 61 .	IPCC (2006)IPCC – Intergovernmental Panel on Climate Change ( 2006 ) Emissions from Livestock and manure management . In: Hongmin Dong , Joe Mangino , A R ( Russian F. Jerry L. Hatfield , Donald E. Johnson , Keith R. Lassey , Magda Aparecida de Lima ( Eds .) , IPPC Guidelines for National greenhouse gas inventories . Hongmin Dong , p. 10.1 - 10.87 .	Deng ( Deng et al., 2014Deng L , Yang H , Liu G , Zheng D , Chen Z , Liu Y , Lei , Y ( 2014 ) Kinetics of temperature effects and its significance to the heating strategy for anaerobic digestion of swine wastewater . Applied Energy 134 : 349 – 355 . DOI: https://doi.org/10.1016/j.apenergy.2014.08.027 . https://doi.org/10.1016/j.apenergy.2014.... )	Modified Stover-Kincannon ( Yu et al., 1998Yu H , Wilson F , Tay J ( 1998 ) Kinetic analysis of an anaerobic filter . Water Research 32 ( 11 ): 3341 – 3352 PII: S0043-1354(98)00102-X . )
Mean (m ³ CH ₄ d ⁻¹ )	470.8	166.7	1504.2	498.2	560.9	558.6
t _calc	−0.1 ^ns	−6.2 ^*	5.8 ^*	0.4 ^ns	1.2 ^ns	−1.7 ^ns
BIAS (m ³ d ⁻¹ )	65.9	−238.3	1099.2	93.2	156.0	153.3

	Chen-Hashimoto (Chen, 1983)	COD Conversion ( Chernicharo, 2016Chernicharo CA ( 2016 ) Reatores anaeróbios . Belo Horizonte , Editora UFMG , 2 ed ampl. 379 p. )	CETESB (2006)CETESB - Companhia de Tecnologia de Saneamento Ambiental ( 2006 ) Manual do usuário do programa de computador Biogás: geração e uso energético - efluentes e resíduo rural - versão 1.0. Secretaria Do Meio Ambiente, Ministério Da Ciência e Tecnologia , São Paulo , CETESB , p. 1 – 61 .	IPCC (2006)IPCC – Intergovernmental Panel on Climate Change ( 2006 ) Emissions from Livestock and manure management . In: Hongmin Dong , Joe Mangino , A R ( Russian F. Jerry L. Hatfield , Donald E. Johnson , Keith R. Lassey , Magda Aparecida de Lima ( Eds .) , IPPC Guidelines for National greenhouse gas inventories . Hongmin Dong , p. 10.1 - 10.87 .	Deng ( Deng et al., 2014Deng L , Yang H , Liu G , Zheng D , Chen Z , Liu Y , Lei , Y ( 2014 ) Kinetics of temperature effects and its significance to the heating strategy for anaerobic digestion of swine wastewater . Applied Energy 134 : 349 – 355 . DOI: https://doi.org/10.1016/j.apenergy.2014.08.027 . https://doi.org/10.1016/j.apenergy.2014.... )	Modified Stover-Kincannon ( Yu et al., 1998Yu H , Wilson F , Tay J ( 1998 ) Kinetic analysis of an anaerobic filter . Water Research 32 ( 11 ): 3341 – 3352 PII: S0043-1354(98)00102-X . )
t _calc	−0.6 ^ns	0.4 ^ns	1.5 ^ns	0.2 ^ns	−1.5 ^ns	−0.9 ^ns

	COD Conversion	CETESB
Original model

Mean (m ³ CH ₄ d ⁻¹ )	166.7	1,504.2

Improved model

Mean (m ³ CH ₄ d ⁻¹ )	345.2	417.2
t _calc	1.7 ^ns	0.4 ^ns
BIAS (m ³ CH ₄ d ⁻¹ )	−59.8	12.2

Associação Brasileira de Engenharia Agrícola SBEA - Associação Brasileira de Engenharia Agrícola, Departamento de Engenharia e Ciências Exatas FCAV/UNESP, Prof. Paulo Donato Castellane, km 5, 14884.900 | Jaboticabal - SP, Tel./Fax: +55 16 3209 7619 - Jaboticabal - SP - Brazil
E-mail: revistasbea@sbea.org.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] 1* Corresponding author. Universidade Federal de Viçosa/ Viçosa - MG, Brasil. E-mail: andrerosa@ufv.br