Environmental behavior of waste rocks based concrete: Leaching performance assessment

Taha, Yassine; Benarchid, My.Y.; Benzaazoua, Mostafa

doi:10.1016/j.resourpol.2019.101419

Cited by 23 publications

(10 citation statements)

References 22 publications

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“…The specific gravity of iron tailing obtained by Xingfong et al [6] is about 3.51 ± 0.4; that of gold mine tailing obtained by Ceren Ince is 3.46 [13]. The specific gravity of gold mine waste rock reported by Youssef Bernachid et al [9] and Y. Taha et al [14] is approximately between 2.7 and 3.5. Several researchers have reported the specific gravity as shown in Table 2.…”

Section: ) Particles Gradationmentioning

confidence: 85%

“…The bulk density of some mining wastes obtained by some researchers is mentioned in Table 2. Y. Taha et al [14] mention that the bulk density of gold miningrock waste is 1.56 -1.65 while R. Argane et al [15] have a bulk density between 1.380 and 1.56.…”

Section: ) Bulk Densitymentioning

confidence: 99%

“…Xingdong et al [6] observed that iron tailings consists of 31% of Quartz, 26.1% of Albite and 15.8% of Chamosite. Y. Taha et al [14] observed that gold mining waste consists of 37.6% quartz, 27.1% albite and 15.3% albite. Mustapha Amrani et al [16] observed that phosphate miningrock waste consists of 41% quartz and 40.89% dolomite.…”

Section: Mineralogic Compositionmentioning

confidence: 99%

See 2 more Smart Citations

Recovery of Mining Wastes in Building Materials: A Review

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Manjia²,

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Section: ) Particles Gradationmentioning

confidence: 85%

Section: ) Bulk Densitymentioning

confidence: 99%

Section: Mineralogic Compositionmentioning

confidence: 99%

See 1 more Smart Citation

Recovery of Mining Wastes in Building Materials: A Review

Ally¹,

Manjia²,

Nana³

et al. 2021

OJCE

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“…In addition to steel slag, natural quarry rock that is also traditionally applied for dike reinforcement in the Oosterschelde was tested in the same way. Quarry rock can also leach heavy metals (Taha et al 2019 ) into the water column. Pebbles were used as reference material, assuming that they do not leach heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Leaching of Metals from Steel Slag and Their Ecological Effects on a Marine Ecosystem: Validating Field Data with Mesocosm Observations

Foekema

Tamis

Blanco

et al. 2021

Enviro Toxic and Chemistry

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Steel slag is being used worldwide for a variety of applications, among which underwater dyke reinforcement. In this study the leaching and bioaccumulation of 18 inorganic compounds from Basic Oxygen Furnace (BOF) steel slag, was monitored in marine experimental ecosystems (mesocosms) for 12 weeks. Triplicated mesocosms were installed at two refreshment rates, one reflecting the situation in the Oosterschelde estuary where BOF steel slag was applied, the other at a 35 times lower rate. Vanadium in both water and biota turned out to be the best tracer for the presence of BOF steel slag in the mesocosms. The mesocosm data helped to interpret the results This article is protected by copyright. All rights reserved. Accepted Articleof a 4 year field sampling program in the Oosterschelde estuary where no elevated levels of vanadium in water or biota were found near locations where steel slag was applied. Also no ecological impact could be established in the field, which was in line with the observations in the mesocosms. This study shows the added value of a tailor made mesocosm study for realistic risk assessment, and provides support for applying this tool as a basis for designing efficient field monitoring programs.

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“…However, the traditional one-step calculation methods are usually based on the leaching contents of heavy metals released under strong acid conditions, such as those involving a specific pH of 2-3, and thus represent only the short-term leaching risk of the remediated soil. It is difficult to characterize the long-term release risk of heavy metals under complex environmental pH conditions, and the environmental risk may be underestimated by simply considering the leaching content as the risk value (Taha et al, 2019). In addition, these methods focus only on the effect of the remediation technology and do not extensively consider the ecological and human health risk implications of these remediated soils in the reused environment.…”

Section: Introductionmentioning

confidence: 99%

Two-step calculation method to enable the ecological and human health risk assessment of remediated soil treated through thermal curing

Xie

Ning

et al. 2021

Soil Ecol. Lett.

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The centralized utilization of heavy-metal-contaminated soil has become the main strategy to remediate brownfield-site pollution. However, few studies have evaluated the ecological and human health risks of reusing these remediated soils. Considering Zn as the target metal, systematic pHdependent leaching and the Community Bureau of Reference (BCR) extraction were conducted at six pH values (pH = 2, 4, 6, 8, 10, 12) for the remediated soil treated through thermal curing. The pHdependent leaching results showed that with the formation of ZnCr 2 O 4 spinel phases, the remediated soil exhibited strong inherent resistance to acidic attack over longer leaching periods. Furthermore, the BCR extraction results showed that the leaching agent pH value mainly affected the acid-soluble fraction content. Moreover, a strong complementary relationship was noted between the leaching and acid-soluble fraction contents, indicating that the sum of these two parameters is representative of the remediated soil risk value. Therefore, we proposed a two-step calculation method to determine the sum of the two heavy metal parameters as the risk value of remediated soil. In contrast to the traditional one-step calculation method, which only uses the leaching content as the risk value, this two-step calculation method can effectively avoid underestimating the risk of remediated soil.

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Environmental behavior of waste rocks based concrete: Leaching performance assessment

Cited by 23 publications

References 22 publications

Recovery of Mining Wastes in Building Materials: A Review

Recovery of Mining Wastes in Building Materials: A Review

Leaching of Metals from Steel Slag and Their Ecological Effects on a Marine Ecosystem: Validating Field Data with Mesocosm Observations

Two-step calculation method to enable the ecological and human health risk assessment of remediated soil treated through thermal curing

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