Effect of the generation and physical–chemical characterization of swine and dairy cattle slurries on treatment technologies

Villamar, Cristina Alejandra; Rodríguez, D.C.; López, Daniela; Peñuela, Gustavo A.; Vidal, Gladys

doi:10.1177/0734242x13479431

Cited by 15 publications

(12 citation statements)

References 41 publications

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“…The average reported values are like the ones reported (10-60 L/animal-day) in the literature [30][31][32]. The Chilean cattle and swine population could potentially generate around 2.5 million m 3 /day of wastewater [27,32]. Table 1 describes the Chilean livestock population (cattle and swine) and its potential wastewater generation.…”

Section: Livestock Wastewater Management and Recycling And Its Potensupporting

confidence: 52%

“…Cattle production reports average values of between 25.6 (beef) to 41.1 (dairy) L/animal-day [29]. The average reported values are like the ones reported (10-60 L/animal-day) in the literature [30][31][32]. The Chilean cattle and swine population could potentially generate around 2.5 million m 3 /day of wastewater [27,32].…”

Section: Livestock Wastewater Management and Recycling And Its Potenmentioning

confidence: 89%

“…Wastewater physicochemical characteristics from livestock farms vary depending on the animal/production type and growth stage. 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].…”

Section: Livestock Wastewater Management and Recycling And Its Potenmentioning

confidence: 99%

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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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Section: Livestock Wastewater Management and Recycling And Its Potensupporting

confidence: 52%

Section: Livestock Wastewater Management and Recycling And Its Potenmentioning

confidence: 89%

Section: Livestock Wastewater Management and Recycling And Its Potenmentioning

confidence: 99%

See 1 more Smart Citation

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

Villamar-Ayala

Vera-Puerto

Rivera

et al. 2018

Water

Self Cite

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“…The DM content and concentrations of all the inorganic and organic components of the liquid manure were low (Table 1). For example, the relatively low K + concentration (Table 1) was about one-tenth of that found in Danish studies examining dairy cow liquid manure composition (Sommer and Husted, 1995) and more similar to concentrations of Spanish cattle slurries (Villamar et al, 2013). This is probably due to a large consumption of water when cleaning the resting and walking areas and because no straw material is used in the areas where the liquid manure is collected.…”

Section: Resultsmentioning

confidence: 71%

Transformation of Organic Matter and the Emissions of Methane and Ammonia during Storage of Liquid Manure as Affected by Acidification

et al. 2017

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Acidification of livestock manure can reduce emission of the greenhouse gases methane (CH) and nitrous oxide (NO), as well as ammonia (NH). We examined the relation between emission of these gases and transformation of organic matter as affected by acidification. Liquid cattle manure was acidified with sulfuric acid to pH 5.5 at a pilot scale (100 L), and we measured effects on CH, NO, CO and NH emissions and on transformation of pH buffer components and organic matter. Acidification reduced NH emissions by 62% (47 d) and emission of CH by 68% (57 d). Emissions of NO were negligible, probably due to the absence of a surface crust. Reductions in NH and CH emission were highest at the start but declined over time concomitantly with a gradual increase in the stored liquid manure pH. Acidification did not significantly affect CO emissions. Emission of CO was high, five- to ten-fold of CH emissions, until Day 16 of storage, after which the CO emission rate declined to around twice the CH emission rate; consequently, the majority of C loss during the early stages of storage was CO. Cumulative emission of C in CO and CH closely matched depletion of dissolved organic carbon (DOC), suggesting that DOC may be a predictor for CH emission from dilute slurries. volatile fatty acid and total ammoniacal nitrogen concentrations in surface layers were substantially higher than at the center of stored liquid manure, perhaps resulting from microbial activity at the surface. This pattern deserves attention when predicting NH emission from stored slurry.

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“…The nitrifying reactor achieved 100% of ammonia oxidation into nitrate. Winery wastewater treatment by electrocoagulation (EC) process using aluminum (Al) and iron (Fe) electrodes was investigated byKara et al, (2013) Villamar et al, (2013). evaluated the effect of the generation and physical-chemical characterization of swine and dairy cattle slurries on different biological treatment technologies.…”

mentioning

confidence: 99%

Chemical Waste and Allied Products

Hung

Aziz

Hassan

et al. 2014

Water Environment Research

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Effect of the generation and physical–chemical characterization of swine and dairy cattle slurries on treatment technologies

Cited by 15 publications

References 41 publications

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

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

Transformation of Organic Matter and the Emissions of Methane and Ammonia during Storage of Liquid Manure as Affected by Acidification

Chemical Waste and Allied Products

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