ArticleRSC advances2025
Thermal gradient-driven heavy metal speciation and risk evolution in municipal and industrial sludge: a 300-700 °C pyrolysis perspective.
Article in RSC advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This work investigated the effect of pyrolysis temperatures (300-700 °C) on the speciation distribution and environmental risks of heavy metals (Cu, Zn, Pb, Cd, Ni, Cr) in biochar derived from municipal sludge (MS) and industrial sludge (IS). Through analyses of characterization, heavy metal content, sequential extraction experiment, leaching experiments, and ecological risk assessment, high-temperature pyrolysis promoted the migration of heavy metals into stable forms. The stabilization mechanism primarily relied on the increased specific surface area and porosity of biochar, leading to surface adsorption and pore-filling effects. In contrast, the stabilization of Cu and Ni under low-temperature pyrolysis was closely associated with complexation involving N/O-containing functional groups. The leaching concentration of heavy metals in pyrolytic biochar exhibited a gradual decrease with increasing pyrolysis temperature, and the potential ecological risk index decreased compared to raw sludge. The results demonstrated that high-temperature pyrolysis technology can effectively achieve the stabilization and resource recovery of heavy metals in sludge.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.