Dataset for characterization of dissolved organic matter extracted from organic wastes and their effects on the transport of titanium dioxide nanoparticles in acidic saturated porous media in the presence of monovalent electrolyte

Ruichang Zhang,Haibo Zhang,Chen Tu,Yongming Luo

doi:10.1016/j.dib.2019.105021

Abstract

This dataset is related to the research article in Chemosphere, entitled ‘The limited facilitating effect of dissolved organic matter extracted from organic wastes on the transport of titanium dioxide nanoparticles in acidic saturated porous media’ [1]. The data summarised the characterization of dissolved organic matter (DOM) extracted from organic wastes and their effects on the transport of titanium dioxide nanoparticles (TiO2 NPs) in acidic saturated porous media in the presence of monovalent electrolyte. Three types of dissolved organic matter were extracted from organic materials, including swine manure, sludge, and sediment, using deionized water, and were characterized with UV–Vis, FTIR and elementary analysis. The adsorption of DOM onto TiO2 NPs was evaluated in the presence of NaCl, and zeta potentials of TiO2 NPs were also determined. Breakthrough column experiments were conducted to quantify the effects of the extracted DOM on the transport behaviours of TiO2 NPs in acidic porous media compared with humic acid. Moreover, the interaction energy between nanoparticles and between nanoparticles and quartz media was calculated according to the classical DLVO theory. The dataset could be used as a reference for the evaluation and prediction of the environmental fate and subsequent risk of engineered nanomaterials.

Highlights

Article history: Received 24 November 2019 Accepted 11 December 2019 Available online 20 December 2019. This dataset is related to the research article in Chemosphere, entitled ‘The limited facilitating effect of dissolved organic matter extracted from organic wastes on the transport of titanium dioxide nanoparticles in acidic saturated porous media’ [1]
Breakthrough column experiments were conducted to quantify the effects of the extracted dissolved organic matter (DOM) on the transport behaviours of TiO2 NPs in acidic porous media
DOM derived from three natural organic materials were extracted by deionized water using certain dry solid/water ratios of 1:20, 1:20 and 1:10 for swine manure, sludge and sediment respectively in a rotating shaker at 180 rpm at 25 C for 12 h

Summary

Materials

The nanoparticles, quartz sand and HA used in this study were identical to those used in our previous work [1,2]. Stocking suspension of TiO2 NPs was prepared by adding 250 mg TiO2 NPs to 1.0 L deionized water. C. Quartz sand (40e70 mesh) with an average diameter of approximately 350 mm was purchased from Sinopharm Chemical Reagent Co., Ltd. The sand was purified according to the method of Litton and Olson [3]. HA was obtained from Sigma-Aldrich Chemical Co., Ltd. Stocking solution of HA was prepared at 1 g/L in deionized water with a small amount of NaOH as hydrotropic agent, and was stored no longer than 2 d at 4 C. Other analytical grade chemicals used in this study were purchased from Sinopharm

Extraction of DOM

Preparation of TiO2 NPs suspensions

Findings

Column transport experiments