Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewedConventional

Recent developments in physical, biological, chemical, and hybrid treatment techniques for removing emerging contaminants from wastewater

Shams Forruque Ahmed, M. Mofijur, Samiha Nuzhat, Anika Tasnim Chowdhury, Nazifa Rafa, Md. Alhaz Uddin, Abrar Inayat, T.M.I. Mahlia, Hwai Chyuan Ong, Wen Yi Chia, Pau Loke Show

Journal of Hazardous Materials · 2021

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Summary

This review synthesises recent developments in wastewater treatment technologies designed to remove emerging contaminants—including pharmaceuticals, personal care products, and other persistent pollutants. The authors evaluate physical (adsorption, filtration), biological (enzymatic degradation, microbial metabolism), chemical (oxidation, photocatalysis), and hybrid approaches, assessing their relative effectiveness and applicability. The work appears positioned to inform wastewater management practice and environmental policy in the context of intensifying water reuse and agricultural nutrient recovery.

Regional applicability

UK water utilities and environmental regulators operate within strict discharge standards (Environmental Permitting Regulations, Water Environment (Water Framework Directive) Regulations) and may adopt advanced treatment techniques reviewed here, particularly for potable reuse or discharge to sensitive waters. The findings are relevant to UK agricultural wastewater management, where treated effluent is often recycled for irrigation or livestock watering.

Key measures

Treatment efficacy for emerging contaminant removal; comparative performance of physical, biological, chemical, and hybrid techniques; removal mechanisms and pathways

Outcomes reported

The study reviewed treatment techniques (physical, biological, chemical, and hybrid methods) for removing emerging contaminants from wastewater. The review synthesised evidence on the efficacy, mechanisms, and comparative performance of different treatment approaches as of 2021.

Theme
General food systems / other
Subject
Pesticides, contaminants & food safety
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Food supply chain
DOI
10.1016/j.jhazmat.2021.125912
Catalogue ID
SNmojyxtkh-4ooo10

Topic tags

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