Anaerobic biodigestion of pigs feces in the initial, growing and finishing stages fed with diets formulated with corn or sorghum

Miranda, Adélia Pereira; Lucas, Jorge de; Thomaz, Maria Cristina; Pereira, Gener Tadeu; Fukayama, Ellen Hatsumi

doi:10.1590/s0100-69162012000100006

Cited by 14 publications

(19 citation statements)

References 8 publications

(6 reference statements)

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“…The potential results of TS and VS were superior to those reported by Miranda et al (2012), who evaluated biogas yield from bench digesters loaded with excreta from initial, growing, and finishing phases of swine fed diets based on corn and sorghum with a 30-day HRT. In comparison, with no inclusion of crude glycerin, our percentage values were greater by 58, 10, and 25% for TS; and 71, 17, and 41% for VS at 10-, 17-, and 24-day HRT respectively.…”

Section: Resultsmentioning

confidence: 57%

Co-digestion of swine excreta associated with increasing levels of crude glycerin

et al. 2016

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-The objective of this research was to evaluate the performance of anaerobic co-digestion of swine excreta associated with increasing doses of crude glycerin and different hydraulic retention times (HRT). A completely randomized design was adopted in a 3 × 4 factorial arrangement composed of three HRT (10, 17, and 24 days) and four crude glycerin doses (0, 5, 10, and 15 g/100 g of total solids [TS]), with four replications per treatment. The assessed parameters were: biogas production potential, reductions of volatile solids (VS), chemical oxygen demand (COD), and most probable number of total and thermotolerant coliforms. The biogas production per added VS presented quadratic effect at 17 and 24 days of HRT, with ideal doses of 5.5 and 5.9 g of crude glycerin/100 g TS, respectively. There was no difference among glycerin doses at 10-day HRT for VS reductions; however, at HRT of 17 and 24 days, there were differences, with greater reduction of 61.1% for 5 g of crude glycerin/100 g TS at 24-day HRT. The COD reduction values showed an effect among retention times, in which the 24-day HRT provided the best results. Reductions in coliforms were greater than 99%, with no difference among treatments. Addition of 5 to 6 g of crude glycerin/100 g TS with a 24-day HRT is more effective in biogas production and reduction of VS, COD, and coliforms from co-digestion of swine excreta.

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Section: Resultsmentioning

confidence: 57%

Co-digestion of swine excreta associated with increasing levels of crude glycerin

et al. 2016

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“…Contrasting residue coefficients were reported by Orrico Junior et al (2011) and Miranda et al (2012). These values were 0.230 kg of waste per kg of body weight for growing swine and 0.470 kg of waste per kg of body weight for swine from birth to slaughter, respectively.…”

Section: Resultsmentioning

confidence: 72%

“…Total solids and volatile solids contents of 290.86 and 250.98 g kg −1 , respectively, were found by Miranda et al (2012), for the waste from growing swine. These values were similar to those found in the present study.…”

Section: Resultsmentioning

confidence: 92%

Digestible phosphorus levels for barrows from 50 to 80 kg

et al. 2016

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-This study was carried out to evaluate the levels of digestible phosphorus in diets for barrows with a high potential for lean meat deposition from 50 to 80 kg. Eighty barrows, with an initial weight of 47.93±3.43 kg, were distributed in completely randomized blocks, with each group given five levels of digestible phosphorus (1.86, 2.23, 2.61, 2.99, and 3.36 g kg −1). There were eight replicates, and two animals per experimental unit. Phosphorus levels did not significantly influence feed intake, weight gain, or feed conversion ratio. Daily digestible phosphorus intake increased linearly as levels of phosphorus in the diet were increased. Phosphorus levels did not significantly influence muscle depth, loin eye area, backfat thickness, or the percentage and quantity of lean meat in the carcass. A linear increase was observed for feeding cost as the levels of digestible phosphorus in the diet were increased, and the level of 1.86 g kg −1 cost 29.4% less when compared with the level of 2.61 g kg −1 . The dry matter, natural matter, the coefficient of the residue, and volatile solids of the waste were not significantly influenced by phosphorus levels. Conversely, it was possible to observe an increasing linear effect for total solids, total phosphorus, and total nitrogen in the waste of animals receiving diets with increased levels of digestible phosphorus. The level of 1.86 g kg −1 , which corresponded to a daily intake of 4.77 g −1 of digestible phosphorus, meets the requirements of barrows weighing 50 to 80 kg.

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“…0.254 and 0.627 m 3 ·kg·VS added -1 (Orrico et al, 2004;Xavier et al, 2010;Sakar et al, 2009;Miranda et al, 2012), respectively. Thus, manipueira incremented biogas yield in 26 ruminants and 31 % when co-digested with sheep and swine manure, respectively.…”

Section: Substratesmentioning

confidence: 99%

Produção de biogás por dejetos de ruminantes e monogástricos co-digeridos com manipueira

et al. 2016

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sUMMAryThe aim of this study was to evaluate ruminant and monogastric animal manure co-digested with 10 % of manipueira through process monitoring parameters and biogas production. In this study, eight semi-continuous digesters, with a capacity of 7.8 liters of substrate in fermentation, operated with 30 days of hydraulic retention time, were used. Monitoring analyses were performed in order to assess: pH, total ammonia nitrogen (TAN) concentration, partial alkalinity (PA), content and biogas yield (m . The highest biogas yield was obtained for anaerobic co-digestion of swine manure with 10 % (volume/ volume) of manipueira.Produção de biogás por dejetos de ruminantes e monogástricos co-digeridos com manipueira inforMAtion Cronología del artículo.Recibido

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Anaerobic biodigestion of pigs feces in the initial, growing and finishing stages fed with diets formulated with corn or sorghum

Cited by 14 publications

References 8 publications

Co-digestion of swine excreta associated with increasing levels of crude glycerin

Co-digestion of swine excreta associated with increasing levels of crude glycerin

Digestible phosphorus levels for barrows from 50 to 80 kg

Produção de biogás por dejetos de ruminantes e monogástricos co-digeridos com manipueira

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