Summary
This 2022 narrative review examines the potential of agricultural waste streams—including crop residues, processing by-products, and manure-derived materials—to serve as catalysts and adsorbents in water and wastewater treatment. The authors synthesise evidence on how these materials can remove contaminants whilst positioning agricultural by-products within a circular economy framework that simultaneously addresses on-farm waste management and environmental remediation. The paper appears to evaluate both mechanistic efficacy and economic viability, contributing to the literature on waste valorisation in farming systems.
Regional applicability
The findings are relevant to UK farm and food processing waste streams (e.g. cereal straw, spent grain from brewing, poultry manure), which could be valorised for water treatment applications. However, implementation would require assessment of UK-specific waste composition, water quality challenges, and regulatory acceptance within water treatment infrastructure.
Key measures
As suggested by the title and scope, the paper likely reports on contaminant removal efficiency (e.g. percentage reduction of pollutants), material properties of waste-derived catalysts and adsorbents, and cost-benefit analyses of waste valorisation approaches.
Outcomes reported
The review synthesises evidence on the application of crop residues, processing by-products, and manure-derived materials as catalysts and adsorbents for removal of contaminants from water and wastewater. The paper evaluates both the mechanistic effectiveness and economic feasibility of converting agricultural waste streams into water treatment materials.
Topic tags
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