Adsorption of selected organic micro-pollutants on sewage sludge biochar

Regkouzas, Panagiotis; Diamadopoulos, Evan

doi:10.1016/j.chemosphere.2019.02.165

Cited by 127 publications

(37 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various technologies were adopted to remove TC, including biological, electrochemical, membrane, advanced oxidation process, and adsorption process (Jeong et al, 2010;Cao et al, 2019;Smyk et al, 2019). In comparison with other approaches, adsorption is outstanding for its unique advantages like easy operation, low toxicity, low energy cost, as well as high removal efficiency at low concentrations (Han et al, 2019;Regkouzas and Diamadopoulos, 2019;Shaheen et al, 2019). There are numerous effective adsorbents such as activated carbon (Xiang et al, 2019), carbon nanotubes (Xiang et al, 2019), zeolite (Wang et al, 2019), chitosan (Ahamad et al, 2019), etc.…”

Section: Introductionmentioning

confidence: 99%

Application of Biochar Derived From Pyrolysis of Waste Fiberboard on Tetracycline Adsorption in Aqueous Solution

Gao

Lin

et al. 2020

Front. Chem.

View full text Add to dashboard Cite

In this study, biochars derived from waste fiberboard biomass were applied in tetracycline (TC) removal in aqueous solution. Biochar samples were prepared by slow pyrolysis at 300, 500, and 800 • C, and were characterized by ultimate analysis, Fourier transform infrared (FTIR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET), etc. The effects of ionic strength (0-1.0 mol/L of NaCl), initial TC concentration (2.5-60 ppm), biochar dosage (1.5-2.5 g/L), and initial pH (2-10) were systemically determined. The results present that biochar prepared at 800 • C (BC800) generally possesses the highest aromatization degree and surface area with abundant pyridinic N (N-6) and accordingly shows a better removal efficiency (68.6%) than the other two biochar samples. Adsorption isotherm data were better fitted by the Freundlich model (R 2 is 0.94) than the Langmuir model (R 2 is 0.85). Thermodynamic study showed that the adsorption process is endothermic and mainly physical in nature with the values of H 0 being 48.0 kJ/mol, S 0 being 157.1 J/mol/K, and G 0 varying from 1.02 to −2.14 kJ/mol. The graphite-like structure in biochar enables the π-π interactions with a ring structure in the TC molecule, which, together with the N-6 acting as electron donor, is the main driving force of the adsorption process.

show abstract

Section: Introductionmentioning

confidence: 99%

Application of Biochar Derived From Pyrolysis of Waste Fiberboard on Tetracycline Adsorption in Aqueous Solution

Gao

Lin

et al. 2020

Front. Chem.

View full text Add to dashboard Cite

show abstract

“…In the removal of tetracycline antibiotics with sludgebased mesoporous carbons, it was demonstrated that weakly acidic conditions improved adsorption with a fit to pseudo-second-order models indicating chemical adsorption was dominant; fit was also shown to the Freundlich model (Junyu, Zefeng, & Yuesuo, 2019). Sludge-derived biochar was noted to be effective in the removal of micropollutants with removal rates in the range of 67-99% for water experiments and 35-97% in wastewater (Regkouzas & Diamadopoulos, 2019). et al (2019 utilized iron-loaded biochar from sludge to adsorb tetracycline and doxycycline with maximum adsorption amounts of 104.86 and 128.98 mg/g at 293.15 K. Ciprofloxacin removal by sludge-derived biochar was noted to be inhibited by dissolved and coated humic acid though catalytic degradation of these organics by persistent free radicals improved removal rates (Luo et al, 2019).…”

Section: Annual Literature Reviewmentioning

confidence: 97%

“…In the removal of tetracycline antibiotics with sludge‐based mesoporous carbons, it was demonstrated that weakly acidic conditions improved adsorption with a fit to pseudo‐second‐order models indicating chemical adsorption was dominant; fit was also shown to the Freundlich model (Junyu, Zefeng, & Yuesuo, 2019). Sludge‐derived biochar was noted to be effective in the removal of micropollutants with removal rates in the range of 67‐99% for water experiments and 35‐97% in wastewater (Regkouzas & Diamadopoulos, 2019).…”

Section: Product Development and Reusementioning

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

“…It has a certain adsorption effect on heavy metal ions and inorganic pollutants in water [14]. Also, the pore structure of biochar can provide favorable living conditions for aerobic microorganisms in the system to form a biofilm [15], which is beneficial to the removal of pollutants in sewage [16].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Treatment of Rural Domestic Wastewater Using the Multi-Soil-Layering System Filled with Sludge-Based Biochar

Wang¹,

Zhang²,

Guo³

et al. 2021

ACSM

View full text Add to dashboard Cite

This paper aims to improve the treatment effect of the multi-soil-layering system (MSL) on rural domestic wastewater. For this, sludge-based biochar materials were selected in the experiments to study its impacts on the treatment of rural domestic wastewater using the MSL. The comparative experiments were conducted for the three MSL systems filled with different materials: the sludge-based biochar (a), wood chips (b), and charcoal (c). The results showed that when the sludge-based biochar material was used as a filler, the removal effect of COD, NH4+-N, TN, TP is better than that of wood chips and charcoal, and the removal rates were 80%, 90%, 65% and 92%, respectively, meeting the Grade A standard specified in the Hebei Province Rural Domestic wastewater Discharge Standard (DB13/2171-2015); hydraulic loading rates (HLRs) have a great impact on the removal of pollutants, and the pollutant indicators in the system (a)re affected by the HLRs in different degrees, i.e., NH4+-N>TP>COD>TN from high to low; considering the treatment efficiency and pollutant removal effect, the HLRs should be selected between 800L/(m2·d) and 1200L/(m2·d). It’s concluded finally that the sludge-based biochar material can strengthen the removal effect of the MSL system. This study is of theoretical value for the further research on MSL system and resource utilization of the sludge.

show abstract

Adsorption of selected organic micro-pollutants on sewage sludge biochar

Cited by 127 publications

References 34 publications

Application of Biochar Derived From Pyrolysis of Waste Fiberboard on Tetracycline Adsorption in Aqueous Solution

Application of Biochar Derived From Pyrolysis of Waste Fiberboard on Tetracycline Adsorption in Aqueous Solution

Residuals, sludge, and biosolids: Advancements in the field

Experimental Study on the Treatment of Rural Domestic Wastewater Using the Multi-Soil-Layering System Filled with Sludge-Based Biochar

Contact Info

Product

Resources

About