Sequential extraction of anaerobic digestate sludge for the determination of partitioning of heavy metals

Zhu, Ning; Qiang-Li,; Guo, Xujing; HuiZhang,; Yu-Deng,

doi:10.1016/j.ecoenv.2013.12.033

Cited by 85 publications

(36 citation statements)

References 41 publications

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“…However, due to the feedstock characteristics VWAS digestate showed increased heavy metal content exceeding the legislative limit and thereby preventing its use in agriculture as such, as the heavy metals can cause effects in soils and plants. For example, Cu and Zn are reported to bind with organic compounds and immobilize in soils (Otabbong et al, 1997, Zhu et al 2014, and the fertilization with sewage sludge has been reported to increase the accumulation of Cd, Zn, Pb and Cu in plants (Otabbong et al 1997), the effects of which are dependent on the chemical properties, such as solubility of metals, and by soil characteristics, such as pH.…”

Section: Heavy Metal Contentmentioning

confidence: 99%

“…Feedstocks of urban biogas plants, e.g. sewage sludge and biowastes, may contain heavy metals (Kupper et al, 2014, Odlare et al, 2008, which are concentrated in the digestate due to the mass reduction during anaerobic digestion (Govasmark et al, 2011), and possibly accumulated in the soils or in the food chain after digestate use (Otabbong et al, 1997, Zhu et al, 2014. Altogether, the characterization of the digestate organic matter, nutrient and heavy metal contents and their effects on plants and soils, i.e.…”

Section: Introductionmentioning

confidence: 99%

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Agronomic characteristics of five different urban waste digestates

Tampio

Salo

Rintala

2016

Journal of Environmental Management

118

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The use of digestate in agriculture is an efficient way to recycle materials and to decrease the use of mineral fertilizers. The agronomic characteristics of the digestates can promote plant growth and soil properties after digestate fertilization but also harmful effects can arise due to digestate quality, e.g. pH, organic matter and heavy metal content. The objective of this study was to evaluate the differences and similarities in agronomic characteristics and the value of five urban waste digestates from different biogas plants treating either food waste, organic fraction of organic solid waste or a mixture of waste-activated sludge and vegetable waste. The digestate agronomic characteristics were studied with chemical analyses and the availability of nutrients was also assessed with growth experiments and soil mineralization tests. All studied urban digestates produced 5-30% higher ryegrass yields compared to a control mineral fertilizer with a similar inorganic nitrogen concentration, while the feedstock source affected the agronomic value. Food waste and organic fraction of municipal solid * Corresponding author. Tel.: +358 29 532 6573, E-mail address: elina.tampio@luke.fi 2 waste digestates were characterized by high agronomic value due to the availability of nutrients and low heavy metal load. Waste-activated sludge as part of the feedstock mixture, however, increased the heavy metal content and reduced nitrogen availability to the plant, thus reducing the fertilizer value of the digestate.

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Section: Heavy Metal Contentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Agronomic characteristics of five different urban waste digestates

Tampio

Salo

Rintala

2016

Journal of Environmental Management

118

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“…Numerous sequential-extraction processes have been employed to assess the trace-element contents of various solid sample fractions (sediments and soils) as well as the trace-element bioavailability (Galán et al 2003;Adamo et al 2005;González et al 2007;Romaguera et al 2008;Arenas-Lago et al 2014;Zhu et al 2014;Sofianska and Michailidis 2015). This study used a strong acid mixture digestion-and-modern sequential As-extraction process (herein named the CIEMAT method) to estimate the As content and its bioavailability in sediment samples from the Santa Maria La Reforma coastal lagoon (SAMARE) (Larios et al 2012a).…”

mentioning

confidence: 99%

Strong Acid Mixture and Sequential Geochemical Arsenic Extractions in Surface Sediments from the Santa Maria La Reforma Coastal Lagoon, Mexico: A Bioavailability Assessment

Rivera-Hernández

Green-Ruíz

2016

Arch Environ Contam Toxicol

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Thirty-three sediment samples were collected from the Santa Maria La Reforma coastal lagoon and digested by way of a strong acid mixture and sequential arsenic (As)-extraction method to determine the arsenic (As) content and bioavailability. The As content was determined by atomic fluorescence spectrometry. In addition, grain-size analyses were performed, and organic carbon, carbonate, and iron (Fe) and manganese (Mn) concentrations were determined. Fe and Mn determination was performed by atomic absorption spectroscopy. A Pearson correlation matrix and As enrichment factors were calculated. Sediment concentrations from Santa Maria La Reforma ranged from 3.6 to 25 µg As g(-1) with an average of 13.4 ± 7.6 µg As g(-1). The highest values were observed in the northern (Playa Colorada), north-central (Mocorito River discharge zone), and southern zones ("El Tule" agricultural drain). Most samples were classified as exhibiting no or minor As enrichment and were lower than the threshold effect level (TEL; 7.24 µg g(-1)) for biota (MacDonald et al. in Ecotoxicology 5:253-278, 1996). Low bioavailable As values (<3 %) were measured in the majority of the sediment. The highest As percentages were associated with the oxyhydroxide fraction (F5). The results indicate that As bioavailability is negligible.

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“…After that 0.25% gluteraldehyde (in na-phosphate, ph 7.2) was added and incubated at room temperature for 30 minutes then incubated overnight. Again washed with na-phosphate buffer for 3 times then collected pellets through centrifugation and after that sample was dehydrolysed by different ethanol volumes starting; 30%, 50%, 70%, 80%, 90% and 100% and for each ethanol volume incubate for 10 minutes followed by sample incubated in 100% ethanol [26].…”

Section: Experimental Set Upmentioning

confidence: 99%

Evaluation of Consortia performance under continuous process treating municipal wastewater with low concentration of heavy metals, antibiotic (gentamicin) and diesel oil

Singh¹,

C²,

Gupta³

2017

IJET

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Abstract-Reactor performance affected through augments caused a total alkalinity diminution in the effluent; while the system buffer capacity was sufficient to overcome such instability, as the ratio of partial alkalinity/total alkalinity confirmed. Removal of COD decreased up to 15% when higher doses were added in comparison to acclimation period. Addition of lower doses in reactor influent affected adversely its performance; although, did not cause entire inhibition to anaerobic microbes..

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Sequential extraction of anaerobic digestate sludge for the determination of partitioning of heavy metals

Cited by 85 publications

References 41 publications

Agronomic characteristics of five different urban waste digestates

Agronomic characteristics of five different urban waste digestates

Strong Acid Mixture and Sequential Geochemical Arsenic Extractions in Surface Sediments from the Santa Maria La Reforma Coastal Lagoon, Mexico: A Bioavailability Assessment

Evaluation of Consortia performance under continuous process treating municipal wastewater with low concentration of heavy metals, antibiotic (gentamicin) and diesel oil

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