Phosphorus recovery from phosphonate-contaminated wastewater by nonthermal plasma treatment prior to adsorption on granular iron-coated sand

Chen, Changtao; Ma, Chuanlong; Yang, Xuetong; Demeestere, Kristof; Nikiforov, Anton; Hulle, Stijn Van

doi:10.1016/j.cej.2023.142753

Cited by 3 publications

(1 citation statement)

References 51 publications

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“…In recent years, eutrophication has become the most serious water pollution problem in many natural water bodies [24][25][26]. The primary cause of this issue is the massive discharge of phosphorus-containing wastewater from phosphorus chemical enterprises [27][28][29]. Eutrophication will directly change the physical and chemical characteristics of rivers and lakes, affect the living environment of aquatic organisms, and finally destroy the stability of aquatic ecosystems [30,31].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Removal Characteristics and Mechanism of Phosphorus from Simulated Wastewater Using a Novel Modified Red-Mud-Based Adsorption Material

Liu,

Zhang,

Shen

et al. 2023

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In this work, a common third-generation environmentally friendly quaternary ammonium salt disinfectant, dimethyl dioctadecyl ammonium chloride (DDAC), was used as the modifier to achieve one-step rapid preparation of the modified red-mud-based adsorption material under the condition of microwave assistance, and applied it to the adsorption phosphorus in solutions. After the process of this modification, the structure of the red mud (RM) was not changed, and the DDAC modification could provide more adsorption active sites. The adsorption experiments indicated that the novel modified red mud (NMRM) exhibited a good adsorption performance for phosphorus. The adsorption capability of NMRM for phosphorus was significantly enhanced, and was about eight times higher than that of the initial RM. The kinetics model of the pseudo-second-order, which implied that phosphorus was chemically adsorbed on the surface of the NMRM, could accurately represent the adsorption procedure of NMRM. The adsorption equilibrium of NMRM could be better depicted using the isotherm model of Freundlich. It was speculated that the ion exchange might be responsible for the adsorption mechanism of NMRM for phosphorus. Thus, the NMRM is a potential material for the treatment of phosphorus-containing wastewater due to its outstanding adsorption capability.

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