Ammonia Recovery from Wastewater as a Fuel: Effects of Supporting Electrolyte on Ammonium Permeation through a Cation-Exchange Membrane.

ABSTRACT: Electrodeionization (EDI) is used to recover ammonia from wastewater as a fuel, but how its performance for ammonia recovery is affected by the supporting electrolyte is not very clear. This study involved experimental tests and theoretical calculations on NH₃ recovery, NH₄ ⁺ permeation, and NH₄ ⁺ and Na⁺ interacting with the functional groups in a cation exchange membrane (CEM) using Na₂SO₄ as the supporting electrolyte. The results demonstrated that a low concentration (≤0.250 mol L^-1 of Na₂SO₄) was conducive to NH₄ ⁺ permeation, while the a concentration (0.750 mol L^-1 of Na₂SO₄) hindered NH₄ ⁺

SUBMITTER: Xu L 

PROVIDER: S-EPMC9219067 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature