Behavior and removal of microplastics during desalination in a lab-scale direct contact membrane distillation system

Miranda, Mariana N.; Fernandes, Ana R.; Silva, Adrián M.T.; Pereira, M. Fernando R.

doi:10.1016/j.desal.2023.116846

Cited by 3 publications

(1 citation statement)

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“…Figure 8 indicates that the highest adsorption rate of DZN (92%) was observed in distilled water, while the lowest adsorption rate (57%) was observed in municipal wastewater. These findings show that the presence of ions in aqueous environments has an inhibitory effect, reducing the adsorption rate of DZN (Miranda et al 2023).…”

Section: Field Studiesmentioning

confidence: 64%

Polyethylene microplastics as adsorbent of diazinon in aqueous environments: optimization, and modeling, isotherm, kinetics, and thermodynamic studies

Yari,

Bonyadi,

Najafpoor

et al. 2024

Appl Water Sci

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MPs have raised significant public concern due to their role as carriers of organic contaminants in aqueous solutions. DZN is a non-systemic organophosphorus pesticide that poses risks to human and environmental health. This study aimed to investigate the adsorption of DZN onto PE MPs by examining factors such as PE dose, reaction time, pesticide concentration, and pH through experimental runs based on the Box‒Behnken model. According to the Langmuir model, the maximum adsorption capacity of PE for DZN was 0.35 mg/g. The results indicated that the highest adsorption rate of DZN (92%) was observed in distilled water, while the lowest adsorption rate (57%) was observed in municipal wastewater. The ΔH° and ΔS° values were obtained as − 0.16 kJ/mol and 54.41 J/(mol K), respectively. Therefore, regarding negative ΔG° values, it can be concluded that the adsorption of DZN onto PE MPs is an exothermic, highly disordered, and spontaneous process. The findings indicate a reduction in the adsorption rate of DZN as the concentrations of interfering compounds increase. These findings offer understanding of the interaction between MPs and organic contaminants, emphasizing the need for further studies and approaches to reduce their harmful impact on human health and the environment.

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Section: Field Studiesmentioning

confidence: 64%