Co-treatment of fruit and vegetable waste in sludge digesters: Chemical and spectroscopic investigation by fluorescence and Fourier transform infrared spectroscopy

Provenzano, Maria Rosaria; Cavallo, Ornella; Malerba, Anna Daniela; Maria, Francesco Di; Cucina, Mirko; Massaccesi, Luisa; Gigliotti, Giovanni

doi:10.1016/j.wasman.2016.02.026

Cited by 18 publications

(5 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Organic humification has been widely considered an important index of stabilisation in the treatment of SS (Bernal et al, 2009), and can be realised in the AD of SS (Provenzano et al, 2016;Xu et al, 2020b). Therefore, the humification of SS organic matter must be explored to improve stabilisation during the HS-AD of SS.…”

Section: Organic Humification In the Hs-ad Of Ssmentioning

confidence: 99%

High-solid anaerobic digestion of sewage sludge: achievements and perspectives

Gong

Dai

2020

Front. Environ. Sci. Eng.

View full text Add to dashboard Cite

High-solid anaerobic digestion (HS-AD) has been applied extensively during the last few decades for treating various organic wastes, such as agricultural wastes, organic fractions of municipal solid wastes, and kitchen wastes. However, the application of HS-AD to the processing of sewage sludge (SS) remains limited, which is largely attributable to its poor process stability and performance. Extensive research has been conducted to attempt to surmount these limitations. In this review, the main factors affecting process stability and performance in the HS-AD of SS are comprehensively reviewed, and the improved methods in current use, such as HS sludge pre-treatment and anaerobic co-digestion with other organic wastes, are summarised. Besides, this paper also discusses the characteristics of substance transformation in the HS-AD of SS with and without thermal pre-treatment. Research has shown that the HS effect is due to the presence of high concentrations of substances that may inhibit the function of anaerobic microorganisms, and that it also results in poor mass transfer, a low diffusion coefficient, and high viscosity. Finally, knowledge gaps in the current research on HS-AD of SS are identified. Based on these, it proposes that future efforts should be devoted to standardising the definition of HS sludge, revealing the law of migration and transformation of pollutants, describing the metabolic pathways by which specific substances are degraded, and establishing accurate mathematical models. Moreover, developing green sludge dewatering agents, obtaining high value-added products, and revealing effects of the above two on HS-AD of SS can also be considered in future.

show abstract

Section: Organic Humification In the Hs-ad Of Ssmentioning

confidence: 99%

High-solid anaerobic digestion of sewage sludge: achievements and perspectives

Gong

Dai

2020

Front. Environ. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…The C content of the Ho fraction was obtained by difference between water extractable organic C (WEOC) and C concentration in the Hi fraction. Humic-like substances were obtained using the alkaline extraction as described in Ciavatta et al [22] and recently used by Provenzano et al [23] for digestates from sewage sludge and fruit and vegetable wastes. The alkaline extract was acidified to separate humic (HA) from fulvic acids (FA).…”

Section: General Chemical Analysesmentioning

confidence: 99%

Molecular characterization of digestates from solid-state anaerobic digestion of pig slurry and straw using analytical pyrolysis

Cavallo

Rosa

González‐Pérez

et al. 2018

Journal of Analytical and Applied Pyrolysis

Self Cite

View full text Add to dashboard Cite

HIGHLIGHTS • Molecular composition of solid-state anaerobic digestates of pig slurry and straw studied by Py-GC/MS • Highest OM loss found when using 2 and 4 percolate recirculation per day • Greater polysaccharides consumption found when increasing recirculation frequency • Enrichment in Lig-compounds found when increasing recirculation frequency • Positive effect of percolate recirculation on OM degradation and stabilization

show abstract

“…Concerning analytical aspect for the characterization of the composts maturity or stability, a large literature exists based on various techniques: Fourier-transform infrared spectroscopy (Carballo et al, 2008;Droussi et al, 2009;El Ouaqoudi et al, 2015), UV-Visible spectroscopy (Domeizel et al, 2004;Zhang et al, 2011;Mouloubou et al, 2016), fluorescence spectroscopy (Provenzano et al, 2001(Provenzano et al, , 2016Wei et al, 2016;Zhang et al, 2016;Fuentes et al, 2006), NMR (Nuclear magnetic resonance, Zbytniewski and Buszewski, 2005;Cozzolino et al, 2016) but few take into account the whole production process or the rapidity and feasibility on site of the measurement. Among these analytical techniques to characterize and follow the evolution of organic matter in aqueous fraction in its whole, the use of fluorescence spectroscopy (Green and Blough, 1994;Sierra et al, 1994) and UV-Visible absorbance (Chen et al, 1977;Sellami et al, 2008)), are proven methods.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, the interest is focus on organic matter state in the compost. The intensity of fluorescence can thus be used to evaluate the maturity of the compost (Henderson et al, 2009;Moral et al, 2009), especially thanks to its high instrumental sensitivity compared to other available approaches (Marhuenda-Egea et al, 2007;Provenzano et al, 2001Provenzano et al, , 2016Wei et al, 2016;Zhang et al, 2016). In this context, fluorescence excitation-emission matrices (EEM) are used to study organic compounds that exhibit fluorescence characteristics of humic, fulvic and protein type (Marhuenda-Egea et al, 2007;Tian et al, 2012;Chen et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Rapid on site assessment of a compost chemical stability parameter by UV and fluorescence spectroscopy coupled with mathematical treatment

et al. 2020

View full text Add to dashboard Cite

Sewage sludges are problematic due to the constant increase of urban population. The high level of organic matter in sludges can be valorized by co-composting with green waste. Many chemical changes occur in the compost maturation process, resulting on stabilized organic matter by humification which is recoverable as soil amendment. In this way, the knowledge of organic matter stability and maturity of compost is essential. However, estimation of chemical parameters allowing the management of compost quality usually need complex time consuming laboratory measurements. Indeed, there is not yet rapid, simple and robust method for their on site assessment at the moment. Among usual parameters used to monitor compost evolution, the C/N 2 ratio is a fundamental chemical parameter. The aim of this work is the estimation of the C/N ratio using a Partial Least Squares regression based on UV and fluorescence spectroscopic data and pH from compost water extracts at various steps of composting process and measured on site. A mathematical linear model is established based on selected data (pH, spectroscopic indices) resulting on average relative error for C/N estimation of 5.26 % (range between 0.5 % min. and 9.5 % max.). This tool leads to a rapid and simple on site estimation of the compost stabilization, allowing qualification of the end-product resulting on a global spectroscopic index of stability.

show abstract

Co-treatment of fruit and vegetable waste in sludge digesters: Chemical and spectroscopic investigation by fluorescence and Fourier transform infrared spectroscopy

Cited by 18 publications

References 44 publications

High-solid anaerobic digestion of sewage sludge: achievements and perspectives

High-solid anaerobic digestion of sewage sludge: achievements and perspectives

Molecular characterization of digestates from solid-state anaerobic digestion of pig slurry and straw using analytical pyrolysis

Rapid on site assessment of a compost chemical stability parameter by UV and fluorescence spectroscopy coupled with mathematical treatment

Contact Info

Product

Resources

About