Nano/submicrometer-emulsion oily wastewater treatment inspired by plant transpiration

Zubin Wang, Pu Guo, Liping Heng, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

101 Citations (Scopus)

Abstract

Oily wastewater treatment has attracted considerable attention because the wastewater poses a serious threat to the safety of drinking water, the ecological environment, and human health. Although significant progress has been made with regard to the development of superwettable separation membranes, there is a need for addressing the challenges that arise with the treatment of nano/submicrometer-emulsion oily water, oily seawater, and acid-base-corrosion oily wastewater. Herein, inspired by plant transpiration, a solar-driven device is developed that is based on wood, poly(vinyl alcohol), and hydroxylated multiwalled carbon nanotubes; this device demonstrates a purification efficiency of up to 99.7% toward various nano/submicrometer-emulsion oily wastewaters. Remarkably, owing to the outstanding desalination capacity and robust acid-alkali tolerance, the prepared device achieved a one-step production of fresh water from oily seawater and acid-base-corrosion oily water. Therefore, the development of this device provides a method for treating oily wastewater to produce fresh water.

Original languageEnglish
Pages (from-to)1274-1286
Number of pages14
JournalMatter
Volume4
Issue number4
DOIs
Publication statusPublished - 7 Apr 2021
Externally publishedYes

Keywords

  • MAP4: Demonstrate
  • nano/submicrometer-scale oily wastewater
  • plant transpiration
  • solar driven
  • water purification

Cite this