Effects of enzyme-induced carbonate precipitation on the heavy metals immobilization and hydraulic properties improvement of contaminated humus soil from municipal solid waste landfill

Plot‑Scale Assessment of Sewage Sludge and Biochar Effects on Soil Properties, Soil Erodibility, and Runoff in Contrasting Textural Soil

Analysis of Soil Heavy Metal Absorption with the Application of Biochar Based on Oil Palm (Elaeis guineensis Jacq.) Frond Waste

Soil contamination by heavy metals such as cadmium (Cd) and lead (Pb) is an environmental issue that degrades soil quality and poses risks to the health of living organisms. One strategy to reduce heavy metal mobility in soil is the use of biochar derived from biomass waste. This study aimed to analyze the uptake of Cd...

Remediation of Heavy Metal-Contaminated Soils in Alpine and Arid Mining Regions: Synthesis and Performance of a Multifunctional Amendment

Heavy metal (HM) contamination, freeze–thaw (F-T) cycling, and dry, nutrient-poor conditions jointly degrade the soils of lead–zinc mining areas on the Qinghai–Tibet Plateau (QTP) and severely inhibit plant growth. To address these problems, a multifunctional inorganic–organic composite amendment was developed from loc...

Bio-cementation boosts organic carbon sequestration in coastal saline soils via aggregation, humification, and chemoautotrophs enrichment.

Formation of soil aggregates is crucial for coastal saline soils, as it improves the physicochemical characteristics of soil, and significantly influences the stability of soil organic carbon (SOC) and soil ecological functions. Applying organic fertilizer is a common way to improve these soils, but its exclusive use o...

Holding Water: A Review of Biochar and Hydrochar for Soil Amendment

Biochar (BC) and hydrochar (HC) have attracted increasing attention as sustainable soil amendments for improving soil water retention and mitigating agricultural water stress. This review synthesizes and compares the current state of knowledge on the production, physicochemical properties, and hydraulic performance of...

Building waste sludge as nutrient adsorbents for improving soil quality

This study investigates the potential use of waste building sludge (WBS) as soil improvement additives after enrichment with nutritionally attractive ions (NH4+ and PO43− ). Two types of sludge were tested: (i) the concrete sludge (B) and, (ii) the sludge from the production of artificial stone (TS), both enriched with...