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Aqueous Mineral Carbonation Process via Concrete Sludge

Aqueous Mineral Carbonation Process via Concrete Sludge

Aqueous Mineral Carbonation Process via Concrete Sludge ...

Use of sludge water for concrete production [1], reuse as soil mixed with construction sludge [2], as water treatment materials [3,4], as a calcium source for a

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Aqueous mineral carbonation process via concrete sludge ...

The process consists mainly of a calcium extraction step from concrete sludge by water dilution with stirring and a calcium carbonate precipitation step by the

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Aqueous Mineral Carbonation Process via Concrete Sludge

Mar 20, 2012  Aqueous Mineral Carbonation Process via Concrete Sludge. ... Experimental data for the proposed process was obtained using real concrete sludge generated from

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(PDF) Investigation of Mineral Carbonation with Direct ...

results, the mineral carbonation process of concrete sludge was. ... Yanagisawa, Y. Aqueous Mineral Carbonation Process via Concrete. Sludge. Kagaku Kougaku

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Innovative reuse of concrete slurry waste from ready-mixed ...

Jul 15, 2016  Aqueous mineral carbonation process via concrete sludge. Kagaku Kogaku Ronbun, 38 (2012), pp. 129-134. CrossRef View Record in Scopus Google Scholar. ... Evaluation of

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(PDF) Investigation of Mineral Carbonation with Direct ...

results, the mineral carbonation process of concrete sludge was. ... Yanagisawa, Y. Aqueous Mineral Carbonation Process via Concrete. Sludge. Kagaku Kougaku Ronbunshu 2012, 38, 129.

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(PDF) CO 2 Utilization via Direct Aqueous Carbonation of ...

direct aqueous carbonation process using concrete fi nes is based on the three main steps of the reaction: (i) Ca extraction from concrete fi nes, (ii) CO 2 dissolution, and (iii) CaCO 3

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Innovative reuse of concrete slurry waste from ready-mixed ...

Jul 15, 2016  Aqueous mineral carbonation process via concrete sludge. Kagaku Kogaku Ronbun, 38 (2012), pp. 129-134. CrossRef View Record in Scopus Google Scholar. ... Evaluation of the capacity of hydroxyapaptite prepared from concrete sludge to remove lead from water. Ind. Eng. Chem. Res., 50 (2011), pp. 9564-9568. CrossRef View Record in Scopus Google ...

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Akihiro YAMASAKI Professor phD Seikei University ...

Concrete sludge is an industrial waste slurry containing hydrated cement, aggregates and water. ... (CO2) sequestration by an aqueous mineral carbonation process using waste concrete

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Recent developments and challenges of aqueous mineral ...

May 25, 2020  Aqueous mineral carbonation is the most selected ‘ex-situ’ mineral carbonation route under research scrutiny and is among the earliest routes studied on a pilot scale. This review summarises the recent advancements in aqueous mineral carbonation and discusses the current frontiers, research gaps, and future perspectives of the process. It also provides useful insights into the current ...

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(PDF) CO2 sequestration by aqueous mineral carbonation

The aim of this work was to investigate the dissolution and carbonation of olivine, pyroxene and amphibole-rich rocks using an ammonium salt pH swing mineral carbonation process. The effect of ...

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Pilot-Scale Operation of a Concrete Sludge Recycling Plant ...

Request PDF Pilot-Scale Operation of a Concrete Sludge Recycling Plant and Simultaneous Production of Calcium Carbonate A pilot-scale plant to treat concrete sludge and produce calcium ...

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Evaluation of the Capacity of Hydroxyapaptite Prepared ...

The lead removal capacity of the concrete sludge-derived HAP (506 mg/g) was comparable to that of reagent grade HAP. Lead in water was removed in the form of Pb3(CO3)2(OH)2. These results indicate that HAP prepared from concrete sludge can be applied to removal of lead ions from water. ... Aqueous Mineral Carbonation Process via Concrete Sludge ...

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[PDF] Valorization of waste concrete through CO2 mineral ...

Abstract The use of CO2 mineral carbonation represents an attractive approach to recycling waste concrete. In this study, the effect of gas pressure, Liquid/Solid (L/S) ratio (w/w), Gas/Liquid (G/L) ratio (v/v) and reaction time for CO2 sequestration were investigated. While carbonation of such matrix is already described, this study opens new insights in concrete carbonation.

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Atsushi IIZUKA Associate professor Ph.D. Tohoku ...

A mineral carbonation process for CO2 sequestration has been developed, and its process feasibility was examined based on laboratory-scale experimental studies.

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3 Mineral Carbonation to Produce Construction Materials ...

FIGURE 3-1 The process of mineral carbonation brings alkaline reactants into contact with dilute or enriched CO 2 and results in the production of carbonate mineral aggregates, binding agents, and mixtures of the two that can be readily used as construction materials. The application of heat and pressure depends on the specific process and product requirements.

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Artículos de revistas: "Mineral carbonation" – Grafiati

The test results show that with the decrease of water-binder ratio, carbonation resistance of high performance manufactured sand concrete increase, and when the concrete compressive strength is over 55Mpa, carbonation resistance is good, and when water-binder ratio is lower than 0.38, the impact of mineral admixtures on the carbonation ...

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Anaerobic digestion - Wikipedia

Anaerobic digestion is a sequence of processes by which microorganisms break down biodegradable material in the absence of oxygen. The process is used for industrial or domestic purposes to manage waste or to produce fuels. Much of the fermentation used industrially to produce food and drink products, as well as home fermentation, uses anaerobic digestion.

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Cambridge IGCSE Chemistry Coursebook 4th Edition PDF ...

Carbon dioxide enters the air through respiration 1.7 What are the problems caused by acid ... ores are rocks that have a relatively high carbonate This activity illustrates some of the chemistry of concentration of a mineral containing ... The process can be speeded up by using The separation of a solid from a mixture of solids a ...

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Carbon dioxide sequestration of concrete slurry waste and ...

Jun 15, 2016  This paper aimed to investigate the CO 2 sequestration potential of concrete slurry waste (CSW) and its valorisation with fine recycled concrete aggregates (FRCAs) for the production of sustainable construction products by direct gas-solid mineral carbonation. Concrete slurry waste (CSW) with rich calcium and silicate phases is a by-product waste generated from concrete production in concrete ...

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Modeling and Optimization of Aqueous Mineral Carbonation ...

Jun 05, 2020  Jo H, Jang Y, Jo H (2012) Influence of NaCl on mineral carbonation of CO 2 using cement material in aqueous solutions. Chem Eng Sci 80:232–241. Google Scholar 20. Xuan D, Zhan B, Poon CS, Zheng W (2016) Carbon dioxide sequestration of concrete slurry waste and its valorisation in construction products. Const. Build. Mat. 113:664–672

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Abstract: CO2 Fixation through Carbonation of Waste Cement ...

CO 2 capturing and fixation processes with waste concrete via mineral carbonation reactions have been developed. The waste concrete is either waste concrete generated from demolished concrete buildings (waste concrete, hereafter) or concrete sludge. Waste concrete is composed of aggregates and waste (hydrated) cement, and waste cement powder of which the diameter is under about 100 μm

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Pilot-Scale Operation of a Concrete Sludge Recycling Plant ...

Sep 26, 2016  The process involved calcium extraction from concrete sludge into water, followed by reaction of the calcium with CO 2 to produce crystalline CaCO 3. The pilot-scale plant was operated for 1 week, and the mass flows, conversion of CO 2 to CaCO 3, and net CO 2 emissions of the process

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3 Mineral Carbonation to Produce Construction Materials ...

FIGURE 3-1 The process of mineral carbonation brings alkaline reactants into contact with dilute or enriched CO 2 and results in the production of carbonate mineral aggregates, binding agents, and mixtures of the two that can be readily used as construction materials. The application of heat and pressure depends on the specific process and product requirements.

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Cost Evaluation for a Carbon Dioxide Sequestration Process ...

Cost Evaluation for a Carbon Dioxide Sequestration Process by Aqueous Mineral Carbonation of Waste Concrete IIZUKA Atsushi , YAMASAKI Akihiro , YANAGISAWA Yukio Journal of chemical engineering of Japan 46(4), 326-334, 2013-07-01

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CO2 sequestration using waste concrete and anorthosite ...

Mineral carbonation (MC) represents a promising alternative for sequestering CO2. In this work, the CO2 sequestration capacity of the available calcium-bearing materials waste concrete and anorthosite tailings is assessed in gas-solid-liquid and gas-solid routes using 18.2% flue CO2 gas. The objective is to screen for a better potential residue and phase route and as the ultimate purpose to ...

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CO2 Utilization via Direct Aqueous Carbonation of ...

Mar 26, 2021  2 utilization via direct aqueous carbonation of synthesized concrete fines under atmospheric pressure and low CO 2 concentration. The carbonation reaction with different solid−liquid ratios and different concentrations of introduced CO 2 was examined in detail. Under basic conditions, a CO 2 uptake of 0.19 g-CO 2 /g-concrete fines ...

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A review of carbon dioxide sequestration by mineral ...

Jun 15, 2021  Synopsis: In this review, the process of mineral carbonation of BG containing direct and indirect routes is discussed.Additionally, the carbonation kinetics and the synthesis of tunable calcium carbonate (CaCO 3) are elaborated.Furthermore, the challenge and future work of mineral carbonation of BG for CO 2 storage is proposed.. Download : Download high-res image (142KB)

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メンバー 東北大学多元物質科学研究所 中村研究室

(Atsushi Iizuka, Akihiro Yamasaki, Masato Honma, Yasuyuki Hayakawa, and Yukio Yanagisawa, Aqueous Mineral Carbonation Process via Concrete Sludge, Kagaku Kougaku Ronbunshu, 38(2), pp.129-134, 2012.)

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CO2 sequestration using waste concrete and anorthosite ...

Aug 22, 2015  Mineral carbonation (MC) represents a promising alternative for sequestering CO2. In this work, the CO2 sequestration capacity of the available calcium-bearing materials waste concrete and anorthosite tailings is assessed in gas-solid-liquid and gas-solid routes using 18.2% flue CO2 gas.

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Cost evaluation for a carbon dioxide sequestration process ...

The cost of carbon dioxide (CO 2) sequestration by an aqueous mineral carbonation process using waste concrete was estimated.We considered scenarios where the amount of waste concrete used and the conversion ratio of calcium to calcium carbonate (CaCO 3) varied in the range of 30-300 kt/y/plant and 50-80 wt%, respectively.Installation of CaCO 3 recrystallization equipment, which produces ...

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Ex situ aqueous mineral carbonation. - Abstract - Europe PMC

Apr 01, 2007  Investigation of Mineral Carbonation with Direct Bubbling into Concrete Sludge. Abe M, Tanaka S, Noguchi M, Yamasaki A. ACS Omega, 6(24):15564-15571, 08 Jun 2021 Cited by: 0 articles PMID: 34179600 PMCID: PMC8223220. Free to read use

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Dissolution rates of alkaline rocks by carbonic acid ...

May 01, 2013  Dissolution rates of alkaline rocks, including wollastonite (CaSiO 3), olivine (Mg 2 SiO 4), and phlogopite (KMg 3 AlSi 3 O 10 (OH) 2), with high pressure aqueous CO 2 solution were measured to examine the feasibility of CO 2 fixation via carbonation. Influence of solid/liquid ratio (1.0–10 g/250 mL), temperature (303–353 K), and CO 2 pressure (1.0–3.0 MPa) on the extraction

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