Dynamic Adsorption Characteristics of Cr(VI) in Red-Mud Leachate onto a Red Clay Anti-Seepage Layer.

Yibo Zhang, Yue Yu, Hao Qin, Daoping Peng, Xing Chen

Abstract read

In one paragraph

Article in Toxics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

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.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Yibo ZhangSchool of Emergency Management, Xihua University, Chengdu 610039, China.ORCID 0000-0002-7520-6738

Yue YuSchool of Emergency Management, Xihua University, Chengdu 610039, China.

Hao QinSchool of Emergency Management, Xihua University, Chengdu 610039, China.

Daoping PengFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China.

Xing ChenFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China.

Funding

Natural Science Foundation of Sichuan, China 2022NSFSC0240Natural Science Foundation of Xihua University Z201046

6 · The paper itself

Abstract

Red-mud leachate from tailings ponds contains Cr(VI), which can pollute groundwater via infiltration through anti-seepage layers. This paper investigates leachate from a red-mud tailings pond in southwest China and the red clay in the surrounding area to simulate the adsorption of Cr(VI) onto clay at different pHs, using geochemical equilibrium software (Visual MINTEQ). We also performed dynamic adsorption testing of Cr(VI) on a clay anti-seepage layer. The dynamic adsorption behaviors and patterns in the dynamic column were predicted using the Thomas and Yoon-Nelson models. Visual MINTEQ predicted that Cr(VI) adsorption in red-mud leachate onto clay was 69.91%, increasing gradually with pH, i.e., adsorption increased under alkaline conditions. Cr(VI) concentration in the effluent was measured using the permeability test through a flexible permeameter when the adsorption saturation time reached 146 days. At a low seepage rate, Cr(VI) adsorption onto the clay anti-seepage layer took longer. Saturation adsorption capacity,

Indexed as

clay anti-seepage layerCr(VI)dynamic adsorptionred-mud leachateVisual MINTEQ simulation

Identifiers

PMID36287886

DOI10.3390/toxics10100606

PMCPMC9611786

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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.