Characterization of organic compounds from biosolids of Buenos Aires city

Torri, Silvana Irene; Alberti, Cecilia

doi:10.4067/s0718-95162012000100012

Cited by 23 publications

(14 citation statements)

References 19 publications

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“…For example, in the city of Buenos Aires, about 29-45 % of biosolids carbon was still present 1 year after application, indicating the slow-release nature of biosolids-applied nutrients and organic matter (Torri and Alberti 2012). This will save the need to buy chemical fertilizers resulting in cost saving and preventing excessive nutrient leaching from the soil caused by the application of chemical fertilizers.…”

Section: Municipal Biosolidsmentioning

confidence: 97%

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

He¹,

Gielen²,

Bolan³

et al. 2014

Agron. Sustain. Dev.

237

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Phthalic acid esters have been used as plasticizers in numerous products and classified as endocrine-disrupting compounds. As China is one of the largest consumers of phthalic acid esters, some human activities may lead to the accumulation of phthalic acid esters in soil and result in contamination. Therefore, it is necessary for us to understand the current contamination status and to identify appropriate remediation technologies. Here, we reviewed the potential sources, distribution, and contamination status of phthalic acid esters in soil. We then described the ecological effect and human risk of phthalic acid esters and finally provided technologies to remediate phthalic acid esters. We found that (1) the application of plastic agricultural films, municipal biosolids, agricultural chemicals, and wastewater irrigation have been identified as the main sources for phthalic acid ester contamination in agricultural soil; (2) the distribution of phthalic acid esters in soils is determined by factors such as anthropogenic behaviors, soil type, properties of phthalic acid esters, seasonal variation, etc.; (3) the concentrations of phthalic acid esters in soil in most regions of China are exceeding the recommended values of soil cleanup guidelines used by the US Environmental Protection Agency (US EPA), causing phthalic acid ester in soils to contaminate vegetables; (4) phthalic acid esters are toxic to soil microbes and enzymes; and (5) phthalic acid ester-contaminated soil can be remedied by degradation, phytoremediation, and adsorption.

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Section: Municipal Biosolidsmentioning

confidence: 97%

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

He¹,

Gielen²,

Bolan³

et al. 2014

Agron. Sustain. Dev.

237

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“…According to this model, organic C added through biosolids consisted of two fractions of different degree of biodegradability: a labile fraction (53-71%) that was quickly mineralized at a constant rate ( ) and a recalcitrant fraction (28.5-45.4%), not available or resistant to soil microorganisms that remained in the soils one year after biosolids application [34]. Organic compounds of the recalcitrant fraction are mainly stable cholestane-based sterols [38] which may have a turnover rate in the order of hundreds of years [39]. The labile organic fraction has often been found to be largely dependent on the degree of biosolids stabilization [40].…”

Section: Biosolids-borne C Sequestrationmentioning

confidence: 99%

Soil Carbon Sequestration Resulting from Biosolids Application

Torri

Corrêa

Renella

2014

Applied and Environmental Soil Science

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Carbon (C) sequestration in soils through the increase of the soil organic carbon (SOC) pool has generated broad interest to mitigate the effects of climate change. Biosolids soil application may represent a persistent increase in the SOC pool. While a vast literature is available on the value of biosolids as a soil conditioner or nutrient source in agricultural systems, there is still limited knowledge on soil sequestration mechanisms of biosolids-borne C or the main factors influencing this capacity. The emerging challenges posed by global environmental changes and the stringent needs to enhance C storage call for more research on the potential of soil biosolids incorporation as a sustainable C storage practice. This review addresses the potential of C sequestration of agricultural soils and opencast mines amended with biosolids and its biological regulation.

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“…Analysis of biosolids revealed fatty acids dominated the isolated polar fraction, with smaller quantities of aliphatic acids and sterols. Stable sterols were speculated to contribute to the recalcitrant C pool (Torri and Alberti, 2012).…”

mentioning

confidence: 99%

Soil Carbon and Nitrogen Fraction Accumulation with Long‐Term Biosolids Applications

Pan¹,

Port²,

Xiao³

et al. 2017

Soil Science Soc of Amer J

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global sustainability depends on the recycling of organic wastes, containing carbon and plant nutrients, back into food production. Biosolids are capable of building total soil organic matter, but their ability to build stable organic C and n fractions is less well understood. The sequestration of stable soil C and replacement of energy-requiring commercial fertilizers both have implications for greenhouse gas mitigation. Our aim was to assess the effectiveness of biosolids amendments to store labile and stable soil C and n fractions while supplying crop n needs. Three rates of anaerobically digested biosolids were incorporated following wheat harvest every 4 yr in a wheat-fallow system over 20 yr, and compared to a no-fertilizer check and a standard commercial fertilizer treatment. Increases in total soil C and n correlated to cumulative application rates of total and acid-resistant, non-hydrolyzable (nH) C and n, with 91% of added biosolids C efficiently retained in soil. The soil accumulated light fraction (LF) C and n in biosolids treated plots, whereas the LF pools of the control plots decreased and LF pools in the commercial fertilizer plots stayed relatively constant. Total soil n correlated with cumulative biosolids n, with 35% of added biosolids n retained in the soil of which only 4% was stored in the soil nH n fraction. Anhydrous ammonia increased wheat yields by 27% over the 0-fertilizer check, without increasing soil n. Biosolids markedly elevated total, stable and LF soil C and n pools in semiarid conditions, while maintaining comparable wheat productivity to commercially fertilized wheat-fallow.

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Characterization of organic compounds from biosolids of Buenos Aires city

Cited by 23 publications

References 19 publications

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

Soil Carbon Sequestration Resulting from Biosolids Application

Soil Carbon and Nitrogen Fraction Accumulation with Long‐Term Biosolids Applications

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