Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Promoting the recovery of soil health in As and Sb-polluted soils: new evidence from the biochar-compost option

Amina Boukhatem, Oualida Rached, Alima Bentellis, Sotirios Vasileiadis, Paola Castaldi, Giovanni Garau, Stefania Diquattro

Environmental Science and Pollution Research · 2024

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Summary

This study assessed the remediation potential of biochar, municipal solid waste compost, and their mixture for soils contaminated with arsenic and antimony. The mixed treatment (biochar-compost), particularly at 10% application rate, demonstrated the most promising results for both chemical and biological soil recovery, markedly elevating dehydrogenase enzyme activity whilst altering bacterial community structure. The compost-only and mixed treatments substantially outperformed biochar alone, which showed negligible microbial impacts.

UK applicability

These findings may be relevant to UK soil remediation practice where legacy arsenic and antimony contamination occurs, particularly around former industrial and mining sites. However, the applicability depends on confirmation of the study's geographical context and whether temperature, precipitation, and soil type conditions align with UK conditions.

Key measures

Soil dehydrogenase activity, Biolog community level physiological profiles, partial 16S rRNA gene sequencing, bacterial α-diversity, catabolic activity, bacterial community composition

Outcomes reported

The study evaluated the effectiveness of biochar (BC), municipal solid waste compost (MSWC), and their mixture (MIX) in remediating soils contaminated with arsenic (As) and antimony (Sb). It measured soil enzyme activity, bacterial community composition, and catabolic function using microbial profiling and 16S rRNA sequencing.

Theme
Farming systems, soils & land use
Subject
Soil biology & microbiology
Study type
Research
Study design
Field trial or laboratory incubation study
Source type
Peer-reviewed study
Status
Published
System type
Laboratory / in vitro
DOI
10.1007/s11356-024-35650-3
Catalogue ID
SNmoqqsokf-57xufa

Topic tags

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