Removal Effect of Atrazine in Co-Solution with Bisphenol A or Humic Acid by Different Activated Carbons

Abstract

Activated carbons (ACs) based on apricot shells (AS), wood (W), and walnut shells (WS) were applied to adsorb atrazine in co-solutions. To study the effect of Bisphenol A (BPA) on the adsorption behavior of atrazine, the adsorption performance of ACs for BPA in single solution was studied. The results demonstrated that the adsorption kinetics of BPA fitted the pseudo-second-order model, the adsorption isotherms of BPA followed the Langmuir model. Meanwhile, the adsorption kinetics of atrazine fitted the pseudo-second-order kinetics model and the isotherm was consistent with the Freundlich model both in single solution and co-solution. In addition, competitive adsorption was observed when atrazine coexisted with BPA or humic acid. For the adsorption capacity, the adsorption amount of ASAC, WAC, and WSAC for atrazine obviously decreased by 18.0%, 30.0%, and 30.3% in the presence of BPA, respectively, which was due to the π−π interactions, hydrophobic interactions, and H-bonds, resulting in the competitive adsorption between atrazine and BPA. This study contributes to the further understanding of the adsorption behavior for atrazine in co-solution.

Adsorption of Bisphenol A on Peanut Shell Biochars: The Effects of Surfactants

“…is result was comparable with the previous studies [11][12][13]. is also indicated that the adsorption affinity of biochars to BPA was following the order as BC700 > BC500 > BC300.…”

“…Previous studies found that biochars showed strong adsorption affinities to BPA [11][12][13]. For example, Wu et al [11] have reported that wood, walnut, and apricot shell biochars all showed strong adsorption affinity to BPA. Choi et al [12] showed that the maximum adsorption capacity of BPA to alfalfa biochar prepared at 650°C was as high as 38 mg/g.…”

Treatment of Gaseous Ammonia Emissions Using Date Palm Pits Based Granular Activated Carbon

“…Adsorption and activated carbon based technologies have also been widely used for several environmental applications [19][20][21][22][23][24]. To that end, the conversion of agricultural wastes into granular activated carbon (GAC) and its use for pollution control applications, has also attracted much attention, considering its multi-faceted and inherent economical, and environmental advantages.…”

Competitive adsorption of naphthalene and phenanthrene on walnut shell based activated carbon and the verification via theoretical calculation

“…[3][4][5] Among the various treatments, adsorption based on several types of porous materials, such as activated carbon (AC), activated alumina, ion exchange media, and iron-based media, has been regarded as a promising green technology due to its simple operation, remarkable economic applicability, low-energy demand, and environmental friendliness. [6][7][8] Actually, the types of adsorbent are vital for the adsorption performances towards specic contaminants. Generally, AC is considered to be a good adsorbent owing to the developed porosity, large surface area and high adsorption capacity.…”

“…Generally, AC is considered to be a good adsorbent owing to the developed porosity, large surface area and high adsorption capacity. [7][8][9] Recently, due to the low-cost and wide availability, a wide variety of biomass resources have been deployed as precursors to achieve target AC materials. [9][10][11] As reported, Cabal et al 12 prepared AC from bean pods to remove naphthalene (NAP) from solution via physical adsorption.…”