Super-fine powdered activated carbon (SPAC) for efficient removal of micropollutants from wastewater treatment plant effluent

Bonvin, Florence; Jost, Livia; Randin, Lea; Bonvin, Emmanuel; Kohn, Tamar

doi:10.1016/j.watres.2015.12.001

Cited by 142 publications

(53 citation statements)

References 41 publications

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“…Excluding the important synthesis costs involved, uptake of DCF here by biochar was not as efficient as for activated carbons (Bhadra et al, 2017, Bhadra et al, 2016, Sotelo et al, 2014, grape bagasse (Antunes et al, 2012) and organoclays (De Oliveira et al, 2017); but was more efficient than for molecularly imprinted polymer (Madikizela and Chimuka, 2016), sericite hybrid materials (Tiwari et al, 2015), silica-based materials (Bui andChoi, 2009, Suriyanon et al, 2013) and even some carbon nanotubes (Czech and Oleszczuk, 2016). TMP uptake by macro-algae was higher than for a powdered activated carbon (Bonvin et al, 2016), biosorbents derived from sewage sludge (Nielsen and Bandosz, 2016) and montmorillonite (Vidal et al, 2015); but lower than for certain types of activated carbon (Kim et al, 2010, Liu et al, 2012. It should however be noted that a direct comparison between biosorption…”

Section: Isothermsmentioning

confidence: 97%

Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations

Taggart

McKenzie

et al. 2019

Journal of Cleaner Production

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The use of abundant natural wastes as environmentally friendly products promotes a circular green economy and cleaner production. The potential use of natural waste materials without additional processing for the removal of priority pharmaceuticals from water was investigated. Here, the performance of selected low-cost biosorbents (biochar, macro-algae and wood chippings) was evaluated using two extensively prescribed model pharmaceuticals: diclofenac (DCF) and trimethoprim (TMP). The physicochemical properties of the biosorbents were examined (to shed light on likely biosorption mechanisms) using Brunauer-Emmett-Teller (BET) measurements, scanning electron microscopy (SEM), zero point of charge (pH zpc) measurements and Fourier transform infrared spectroscopy (FTIR). Experimental data from kinetic studies fitted a pseudo-second order model, and multiple diffusion steps limited the mass transfer of analytes. Intra-partile diffusion was the rate limiting step for biochar, while macro-algae and wood chippings were limited (mainly) by adsorptive attachment. The equilibrium data for most of the studied systems best fitted a Langmuir model, while the Freundlich model provided a better fit for TMP with wood chippings. At µg•L-1 initial pharmaceutical loading levels, the maximum biosorption capacity for DCF was attained with biochar (7.25×10 3 µg•g-1), while macro-algae performed best for TMP (7.14×10 4 µg•g-1). Both chemical and physical interactions were likely responsible for the biosorption of pharmaceuticals. High removal efficiencies were achieved at the low initial loadings studied, indicating the potential application of those sustainable low-cost biosorbents at low (environmentally relevant) pharmaceutical concentrations.

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Section: Isothermsmentioning

confidence: 97%

Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations

Taggart

McKenzie

et al. 2019

Journal of Cleaner Production

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“…Superfine powdered activated carbon (SPAC), which is produced by micromilling of normal powdered activated carbon (PAC), is a new option for efficiently removing natural organic matter, disinfection byproduct precursors, organic micropollutants, and taste and odor compounds from water (Bonvin et al 2016, Dunn and Knappe 2013, Heijman et al 2009, Matsui et al 2007, Matsui et al 2004, Matsui et al 2005, Wang et al 2011. SPAC offers many advantages over PAC, such as higher adsorption capacity (Ando et al 2010, Bonvin et al 2016, faster adsorption kinetics (Dudley 2012, Matsui et al 2009a, Wang et al 2011, and the ability to attenuate the buildup of transmembrane pressure when used before microfiltration (Ellerie et al 2013, Li 2014, Matsui et al 2007, Matsui et al 2009b).…”

Section: Introductionmentioning

confidence: 99%

Effects of decreasing activated carbon particle diameter from 30 μm to 140 nm on equilibrium adsorption capacity

et al. 2017

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The capacity of activated carbon particles with median diameters (D50s) of >∼1 μm for adsorption of hydrophobic micropollutants such as 2-methylisolborneol (MIB) increases with decreasing particle size because the pollutants are adsorbed mostly on the exterior (shell) of the particles owing to the limited diffusion penetration depth. However, particles with D50s of <1 μm have not been thoroughly investigated. Here, we prepared particles with D50s of ∼30 μm-∼140 nm and evaluated their adsorption capacities for MIB and several other environmentally relevant adsorbates. The adsorption capacities for low-molecular-weight adsorbates, including MIB, deceased with decreasing particle size for D50s of less than a few micrometers, whereas adsorption capacities increased with decreasing particle size for larger particles. The oxygen content of the particles increased substantially with decreasing particle size for D50s of less than a few micrometers, and oxygen content was negatively correlated with adsorption capacity. The decrease in adsorption capacity with decreasing particle size for the smaller particles was due to particle oxidation during the micromilling procedure used to decrease D50 to ∼140 nm. When oxidation was partially inhibited, the MIB adsorption capacity decrease was attenuated. For high-molecular-weight adsorbates, adsorption capacity increased with decreasing particle size over the entire range of tested particle sizes, even though particle oxygen content increased with decreasing particle size.

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“…Mostly, color removal process is applied in the textile wastewater [5][6][7][8][9] since it generates high color waste. Organics removal in the STP effluent using activated carbon adsorption has been widely applied [10][11][12][13][14][15], but study on its color removal is still slighty done [3]. Color removal process is needed to meet the requirements of water quality set by the Ministry of Health No.…”

Section: Introductionmentioning

confidence: 99%

Study on color removal of Sewage Treatment Plant (STP) effluent using granular activated carbon

Nurfida

Widiasa

2018

MATEC Web Conf.

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Recycling of sewage treatment plant (STP) effluent is one of the attractive solutions to fulfill clean water for hotels and malls in Indonesia. STP effluent has average characteristics as follow: pH 6.8; color (true color) 107 PtCo; A254 (UV absorption) 0.36 cm-1 and COD 35.9 mg/L. Because of high color and organics contents, STP effluent needs further treatment such as activated carbon adsorption. Batch and continuous treatment of synthetic STP effluent by a commercial granular activated carbon (Filtrasorb 300) were investigated. The results show that adsorption capacity of the Filtrasorb 300 for color body of STP effluent was 184 PCU/g of carbon. Langmuir model is appropriate to describe the isotherm adsorption process in this study, with Qm: 476.2 PCU/g of carbon. The results of isotherm adsorption model evaluation, SEM photograph and FTIR analysis show that color adsorption occurred was physical adsoption.

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Super-fine powdered activated carbon (SPAC) for efficient removal of micropollutants from wastewater treatment plant effluent

Cited by 142 publications

References 41 publications

Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations

Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations

Effects of decreasing activated carbon particle diameter from 30 μm to 140 nm on equilibrium adsorption capacity

Study on color removal of Sewage Treatment Plant (STP) effluent using granular activated carbon

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