Biosorption Behavior of Ciprofloxacin ontoEnteromorpha prolifera:Isotherm and Kinetic Studies

Abstract

The studies aimed at the feasibility of using Enteromorpha prolifera for the removal of ciprofloxacin from aqueous solutions. Batch experiments were carried out for the biosorption of ciprofloxacin onto Enteromorpha prolifera. The factors affecting the biosorption process such as the initial concentration, dosage, pH and the contact time were studied. Enteromorpha prolifera exhibited a maximum biosorption capacity of 21.7 mg/g. The pseudo-second-order kinetic model described the ciprofloxacin biosorption process with a good fitting. The optimum pH of ciprofloxacin adsorbed by Enteromorpha prolifera was 10. Biosorption equilibrium studies demonstrated that the biosorption followed Freundlich isotherm model, which implied a heterogeneous biosorption phenomenon.

Insights into the use of metal complexes of thiourea derivatives as highly efficient adsorbents for ciprofloxacin from contaminated water

“…The initial abstraction is attributed to higher driving force resulting in faster interaction of ciprofloxacin with the available uncovered active sites on the adsorbents. As time progressed, there was a decrease in driving force and the active sites became covered and saturated therefore CPF molecules slowly diffuses into the pores of the sorbent taking a long time to reach equilibrium (Wu et al, 2015). An agitation time of 240 min was allowed in the adsorption experiment to ensure equilibrium abstraction of CPF was achieved.…”

“…Therefore, the removal of CPF from wastewater is necessary. Several techniques have been utilized for remediation of CPF and other contaminants from wastewater such as photofenton oxidation, ozonization, sonification, microbial remediation, chemical reduction and adsorption (Chen et al, 2011;Sturini et al, 2012;Li et al, 2014;Wu et al, 2015). The adsorption technique is the most commonly used and preferred due to its low cost, simplicity and effectiveness (Mao et al, 2016;Darweesh and Ahmed, 2017).…”

“…The adsorption technique is the most commonly used and preferred due to its low cost, simplicity and effectiveness (Mao et al, 2016;Darweesh and Ahmed, 2017). Therefore, several adsorbents such as clay, zeolite, activated carbon, carbon nanotubes, silica, magnetic carbon, coal fly ash, birnessite, graphene oxide, nanomaterials, calcium alginate, graphene oxide based nanomaterials, biomass materials and metal organic framework (MOF) have been utilized for the removal of various contaminants and CPF from solution (El-shafey et al, 2012;Wu et al, 2015;Sturini et al, 2016;Liang et al, 2016;Yu et al, 2016a;Darweesh and Ahmed, 2017;Khan et al, 2017;Gadipelly et al, 2018;Wu et al, 2019). However, some of these adsorbents recorded low adsorption capacity for CPF therefore the search for more adsorbents with high adsorption capacity continues (Gadipelly et al, 2018).…”

Photocatalytic degradation of cephalexin by UV activated persulfate and Fenton in synthetic wastewater: optimization, kinetic study, reaction pathway and intermediate products

“…In acidic pH, sulfate is constantly reduction, and thus free electron production will continue [30]. Due to the CPX solubility factor, with decreasing pH, CPX solubility also increases [31].…”

Removal of Phenol Contaminants from Aqueous Solution Using Pickering Emulsion Liquid Membrane Stabilized by Magnetic Nano-Fe3O4

“…A modified version of the conventional Emulsion liquid membrane technology is called PELM. When it comes to the removal and recovery of numerous valuable organic and inorganic contaminants from aqueous solutions, ELM, which was first discovered by Norman [3], is still regarded by many researchers as being more effective than other wastewater treatment techniques like chemical precipitation, ion exchange [4], ozonation and advance oxidation [5], biosorption [6], adsorption [7,8], pressure-driven membrane processes and electrochemical processes [9,10].…”