Work

Sustainable sorbents for phosphorus and pathogen removal from wastewater and their potential reuse

Year: 2025

Type: conference-paper

Abstract: Excessive phosphorus from agricultural runoff and wastewater discharge is a major contributor to eutrophication in aquatic ecosystems, highlighting the urgent need for effective removal strategies in wastewater treatment. This study evaluates the dual functionality of calcium and iron oxide composites (CaFeOxide) for removing pathogens and phosphorus from wastewater, aiming to mitigate environmental pollution and promote sustainable reuse of spent sorbents. Phosphorus adsorption tests demonstrated that a 2 g/L dosage of CaFeOxide achieved an average removal efficiency of 84%. The composite also exhibited antimicrobial properties comparable to ferric sulphate, reducing Bacillus subtilis spore concentrations. When applied to soil, CaFeOxide improved pH levels and enhanced nutrient availability, underscoring its potential for integrated environmental benefits.

Source: IOP Conference Series Earth and Environmental Science

DOI: 10.1088/1755-1315/1474/1/012017

Authors: Līga Irbe Mikosa, Kamila Gruškeviča, Jūlija Karasa, Rūta Ozola Davidāne

Institutions: Riga Technical University, University of Latvia, Latvia University of Life Sciences and Technologies

Language: English

Topic: Phosphorus and nutrient management

Subfield: Waste Management and Disposal

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: diamond

Funder: Latvijas Zinātnes Padome