Work

New Disinfectant for Greywater Systems: Evaluation of Antibacterial Activity

Year: 2025

Type: article

Abstract: In favourable environments, micro-organisms can persist or proliferate within biofilms that coat the insides of pipes in greywater systems over extended periods. This study aimed to develop an innovative disinfectant that adheres strongly to poly(vinyl chloride) (PVC) pipes and exhibits superior antibacterial properties. Standard tests and protocols were used to evaluate its effectiveness against biofilms during and before formation. The results showed that the new disinfectant was highly effective against Staphylococcus aureus, Enterococcus hirae, Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa on PVC surfaces. Notably, its performance surpassed that of commonly used disinfectants. These results suggest that the new disinfectant could effectively and sustainably disinfect greywater system piping, reducing the need for excessive usage of disinfectants.

Source: Journal of Hospital Infection

DOI: 10.1016/j.jhin.2025.11.038

Authors: D. Castro, I. Ferreri, M. Henriques, I. Carvalho

Institutions: Success Gadget Nanotecnologia e Novos Materiais (Portugal), University of Minho, Labbels

Language: English

Topic: Antimicrobial agents and applications

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDGs: Clean water and sanitation, Good health and well-being

Open Access status: hybrid

Estimated APC paid: $4,000