Thermal hydrolysis of sewage sludge partially removes organic micropollutants but does not enhance their anaerobic biotransformation

Taboada-Santos, Antón; Braz, Guilherme Henrique Rodrigues; Fernandez‐Gonzalez, Nuria; Carballa, Marta; Lema, Juan M.

doi:10.1016/j.scitotenv.2019.06.492

Cited by 40 publications

(18 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They found that thermal hydrolysis resulted in a breakdown of between 5% and 20% of the compounds due to thermal instability. However, when the additional impacts of digestion were accounted for, no statistical difference was noticed in the breakdown of the compounds between the control and test configurations for almost all the compounds tested (Taboada-Santos et al, 2019). Only NPX was totally removed, and it was removed from both test and control reactors.…”

Section: Emerging Contaminantsmentioning

confidence: 92%

“…In a later work, Taboada-Santos et al (2019) studied the fate of a wide variety of xenobiotics which had been processed by thermal hydrolysis (at 170°C for 20 min) and subsequent mesophilic anaerobic digestion (MAD). Eighteen compounds were studied including: three musk fragrances, galaxolide (HHCB), tonalide (AHTN) and celestolide (ADBI); three anti-inflammatories, ibuprofen (IBP), naproxen (NPX) and diclofenac (DCF); four antibiotics, sulfamethoxazole (SMX), trimethoprim (TMP), erythromycin (ERY) and roxithromycin (ROX); four neurodrugs, fluoxetine (FLX), carbamazepine (CBZ), diazepam (DZP) and citalopram (CTL); one endocrine disrupting compound, triclosan (TCS) and three hormones, estrone (E1), 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) (Taboada-Santos et al, 2019). The authors looked at destruction both across thermal hydrolysis itself and after digestion.…”

Section: Emerging Contaminantsmentioning

confidence: 99%

See 1 more Smart Citation

Impacts of thermal hydrolysis

2020

Sludge Thermal Hydrolysis: Application and Potential

View full text Add to dashboard Cite

Impacts of thermal hydrolysis INTRODUCTIONThis chapter deals with the most significant impacts of thermal hydrolysis in more detail. That is to say, its influence on rheological properties of sludge, dewatering, production of recalcitrant compounds and concerns surrounding ammonia toxicity in digestion due to higher loading rates. Treatment of emerging contaminants is also referred to. The influence of thermal hydrolysis on biogas production is presented in Chapter 5, along with other benefits. This chapter also summarizes the various studies which have been conducted on understanding the influence of thermal hydrolysis on microbial communities and their evolvement during the digestion process. INFLUENCE ON SLUDGE RHEOLOGYRheology change due to thermal hydrolysis is arguably the most important consequence of the technology on sludge treatment as it allows higher digester loading ratesdue to increased ease of downstream transportand aids in dewatering (Stickland, 2015). In the informative review by Eshtiaghi and coworkers (2013), sludge is described as a non-Newtonian shear thinning thixotropic fluid, which behaves as a thixotropic colloidal suspension at high shear rates but exhibits polymeric behavior at low shear. The flow behavior of waste-activated sludge has been successfully modelled using the

show abstract

Section: Emerging Contaminantsmentioning

confidence: 92%

Section: Emerging Contaminantsmentioning

confidence: 99%

Impacts of thermal hydrolysis

2020

Sludge Thermal Hydrolysis: Application and Potential

View full text Add to dashboard Cite

show abstract

“…The main purpose of the sewage sludge treatment is to remove the pathogenic microorganisms so that it can be safely treated as substrate (usually fertiliser), landfilled or stored (Świerczek et al 2018 ). The overall efficiency of this hygienisation for the AD, THP and EB is 99% (2 log reduction), 99.99% (4 log reduction) and > 5 log reduction for 10 kGy EB, respectively (Chmielewski et al 1995 ; Chmielewski and Sudlitz 2019 ; Levantesi et al 2015 ; Mills 2015 ; Taboada-Santos et al 2019 ).…”

Section: Electron Beam Comparison With Other Techniquesmentioning

confidence: 99%

Application of electron beam water radiolysis for sewage sludge treatment—a review

Siwek

Edgecock

2020

Environ Sci Pollut Res

View full text Add to dashboard Cite

A review of the applicability of electron beam water radiolysis for sewage sludge treatment is presented. Electron beam treatment has been proven to be a successful approach to the disinfection of both wastewater and sewage sludge. Nevertheless, before 2000, there were concerns about the perceived high capital costs of the accelerator and with public acceptance of the usage of radiation for water treatment purposes. Nowadays, with increased knowledge and technological development, it may be not only possible but also desirable to use electron beam technology for risk-free sewage sludge treatment, disposal and bio-friendly fertiliser production. Despite the developing interest in this method, there has been no attempt to perform a review of the pertinent literature relating to this technology. It appears that understanding of the mechanism and primary parameters of disinfection is key to optimising the process. This paper aims to reliably characterise the sewage sludge electron beam treatment process to elucidate its major issues and make recommendations for further development and research.

show abstract

“…TCS was used as an indicator for the efficacy of aerobic and anaerobic digestion in removing antimicrobials with aerobic digestion proving to be more effective (555 ng/g TCS remaining after treatment) than anaerobic digestion (22,700 ng/g remaining) (Guerra et al, 2019). Thermal hydrolysis pretreatment prior to anaerobic digestion was shown to have an impact on the removal of organic micropollutants in that it improved the removal in the dissolved fraction, but did not affect the concentration of them in the solids that are not solubilized (Tab oada‐Santos, Braz, Fernandez‐Gonzalez, Carballa, & Lema, 2019).…”

Section: Analysis and Quantification Of Characteristicsmentioning

confidence: 99%

Residuals, sludge, and biosolids: Advancements in the field

Brisolara

Gentile

Puszykowski

et al. 2020

Water Environment Research

View full text Add to dashboard Cite

Advancements in the field of residuals, sludge, and biosolids have been made in 2019. This review outlines the major contributions of researchers that have been published in peer-reviewed journals and conference proceedings throughout 2019 and includes brief summaries from over 125 articles. The review is organized in sections including life cycle and risk assessments; characteristics, quality, and measurement including micropollutants, nanoparticles, pathogens, and metals; sludge treatment technologies including dewatering, digestion, composting, and wetlands; disposal and reuse including adsorbents, land application and agricultural uses, nutrient recovery, and innovative uses; odor and air emissions; and energy issues.

show abstract

Thermal hydrolysis of sewage sludge partially removes organic micropollutants but does not enhance their anaerobic biotransformation

Cited by 40 publications

References 58 publications

Impacts of thermal hydrolysis

Impacts of thermal hydrolysis

Application of electron beam water radiolysis for sewage sludge treatment—a review

Residuals, sludge, and biosolids: Advancements in the field

Contact Info

Product

Resources

About