Petrogenetic Significance of Spinels From Serpentinised Peridotites From the Verianaousa Ophiolite

Ρογκάλα, Αικατερίνη; Petrounias, Petros; Tsikouras, Basilios; Hatzipanagiotou, Konstantin

doi:10.12681/bgsg.11946

Cited by 5 publications

(5 citation statements)

References 17 publications

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“…Moreover, a magnesium rich sample (magnesite) has also been used to remediate pH, without being used as aggregate for industrial uses. The majority of the selected ultramafic samples were derived from the Veria-Naousa ophiolite complex, which has been intruded by Pliocene andesites [41][42][43][44]. High-quality low-carbon peat was used to adsorb heavy metals.…”

Section: Methodsmentioning

confidence: 99%

An Experimental Study for the Remediation of Industrial Waste Water Using a Combination of Low Cost Mineral Raw Materials

et al. 2019

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This paper investigates an alternative use of sterile aggregate materials which may arise from various construction applications in conjunction with other low-cost mineral raw materials to remediate the acid mine drainage phenomenon. This study is based on the combination of unprocessed mineral raw materials, as well as on the basic concept of the cyclic economy where the conversion of a waste into a raw material for another application can be achieved. In this study, in order to examine the remediation, in lab scale, of the drainage waste water of Agios Philippos mine, an experimental electrically continuous flow-driven forced device was constructed, enriching the research gap relative to this type of remediation approach. Through this experimental device, the use of certain mixes of mineral raw materials (serpentinite, andesite, magnesite, peat, and biochar) was studied. Our results focus on the impact of the studied mineral raw materials and especially on their synergy on the water purification potential under continuous water flow operation. Using the new 7-day experimental electrically continuous flow-driven forced device with certain mixes of mineral raw materials, the increase of pH values from 3.00 to 6.82 was achieved. Moreover, with use of the experimental device, the removal of toxic load was achieved, and more specifically the concentration of Fe was decreased from 6149 to 1300 ppb, Cu from 8847 to 35 ppb, and Zn from 285,458 to 50,000 ppb.

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Section: Methodsmentioning

confidence: 99%

An Experimental Study for the Remediation of Industrial Waste Water Using a Combination of Low Cost Mineral Raw Materials

et al. 2019

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show abstract

“…Moreover, a magnesium rich sample (magnesite) has also been used to remediate pH, without being used as aggregate for industrial uses. The majority of the selected ultramafic samples were derived from the Veria-Naousa ophiolite complex, which has been intruded by Pliocene andesites [38][39][40][41]. High-quality low-carbon peat was used to adsorb heavy metals.…”

Section: Methodsmentioning

confidence: 99%

An Experimental Study for the Remediation of Industrial Waste Water Using Combination of Low Cost Mineral Raw Materials

Petrounias¹,

Rogkala²,

Giannakopoulou³

et al. 2019

Preprint

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This paper investigates an alternative use of sterile aggregate materials which may arise from various construction applications in conjunction with other low-cost mineral raw materials to remediate the acid mine drainage phenomenon. This study is based on the combination of unprocessed mineral raw materials as well as on the basic concept of the cyclic economy where the conversion of a waste into a raw material for another application can be achieved. In this way, the value of mineral raw materials can be prolonged for as long as possible, waste generation and exploitation of natural resources are minimized and resources are kept as far as possible within the existing economy. In this study, an electrically continuous flow driven forced device proposed and demonstrated for the remediation of waste water in lab-scale by using certain mixes of mineral raw materials (serpentinite, andesite, magnesite, peat and biochar). Our results focus on the impact of the studied mineral raw materials and especially on their synergy on the water purification potential under continuous water flow operation. Using the proposed 7-day experimental electrically continuous flow driven forced device with the certain mixes of mineral raw materials, the increase of pH values from 3.00 to 6.82 as well as significant removal of Fe, Cu and Zn was achieved.

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“…Small bodies of pyroxenites occur within the serpentinised harzburgite, as well. This sequence is considered to be a remnant oceanic lithosphere, which has been emplaced onto Late Triassic-Jurassic platform carbonates of the Pelagonian Zone, during Upper Jurassic to Lower Cretaceous [23][24][25][26][27][28][29]. Serpentinised peridotites are least to moderately weathered and highly affected by tectonic processes, expressed by an intense network of joints.…”

Section: Geological Settingmentioning

confidence: 99%

The Influence of Alteration of Aggregates on the Quality of the Concrete: A Case Study from Serpentinites and Andesites from Central Macedonia (North Greece)

et al. 2018

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This study aims at the interpretation of the adverse effects of the secondary products in two types of rocks during their performance as concrete aggregates. Serpentinised peridotites contain serpentine, as the dominant secondary phase, which creates low microroughness on the particles and therefore unfavorable surfaces for cement paste to adequately adhere to. Moreover, its soft and platy nature contributes to the development of platy defects along the contacts of the aggregate particles with the cement paste. Poor adherence of the paste, failures along the contacts of the aggregate particles and potential propagation of the defects into the concrete during curing (and perhaps subsequently in-service) explain the poor performance of highly serpentinised rocks as concrete aggregates. Andesites show a different composition with a variety of secondary products including albite, chlorite, calcite, Fe-oxides and clay minerals. The role of all these products was investigated and it appears that only smectite is important, as even small amounts of it may be detrimental to the quality of the rocks as concrete aggregates. It is likely that abnormal hydration reactions and considerable swelling of the smectite result in the appearance of defects in the concrete, hence contributing to its low performance.

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Petrogenetic Significance of Spinels From Serpentinised Peridotites From the Verianaousa Ophiolite

Cited by 5 publications

References 17 publications

An Experimental Study for the Remediation of Industrial Waste Water Using a Combination of Low Cost Mineral Raw Materials

An Experimental Study for the Remediation of Industrial Waste Water Using a Combination of Low Cost Mineral Raw Materials

An Experimental Study for the Remediation of Industrial Waste Water Using Combination of Low Cost Mineral Raw Materials

The Influence of Alteration of Aggregates on the Quality of the Concrete: A Case Study from Serpentinites and Andesites from Central Macedonia (North Greece)

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