The application of electrodialysis for the recovery of phosphorus from wastewater sludge liquid discharge

Abstract

Abstract.The paper deals with recovery of phosphorus from the liquid discharge from dewatered wastewater treatment sludge via electrodialysis. Using electrodialysis, phosphorus was transferred into concentrate, where phosphorus concentrated to673.6 mg/l (from the original value 79.87 mg/l). This enriched concentrate may be further processed, e.g. phosphorus can precipitate into the form of struvite.

Three-Dimensional Simulation of a Small-Scale Electrodialysis Process for Domestic Use

“…Electrodialysis is a mass separation process in which electrically charged membranes and an electrical potential difference are used to separate ionic species present in an aqueous solution. This process is used today on a large industrial scale in the production of potable and industrial processed water as well as in the treatment of industrial effluents (Červenková et al 2017, Akhter et al 2018, Campione et al 2020. A small-scale electrodialysis application is one of the most promising topics to expand because these technologies will contribute to improving the living conditions of people especially in deserted and rural areas.…”