Inhibition of calcium carbonate crystal growth by organic additives using the constant composition method in conditions of recirculating cooling circuits

Chhim, Norinda; Kharbachi, Chams; Neveux, Thibaut; Bouteleux, Céline; Teychené, Sébastien; Biscans, Béatrice

doi:10.1016/j.jcrysgro.2017.03.004

Cited by 23 publications

(18 citation statements)

References 58 publications

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“…This effect is probably because cow manure also contains Na + , and its excessive use may go against the desired effect of improving soil chemistry. Although cow manure also contains Ca 2+ , this cation is not as available due to its adsorption to organic compounds, such as citric acid and humic acid, that are also present in the cow manure [34,35]. Thus, the addition of cow manure as a source of organic matter can improve the physical characteristics of the soil, facilitating the release of salts present in the soil solution.…”

Section: Effect On Soil Exchangeable Sodium Percentage (Esp)mentioning

confidence: 99%

Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure

Filho

Dias

Suddarth

et al. 2019

Water

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Saline-sodic soils are a major impediment for agricultural production in semi-arid regions. Salinity and sodicity drastically reduce agricultural crop yields, damage farm equipment, jeopardize food security, and render soils unusable for agriculture. However, many farmers in developing semi-arid regions cannot afford expensive amendments to reclaim saline-sodic soils. Furthermore, existing research does not cover soil types (e.g., Luvisols and Lixisols) that are found in many semi-arid regions of South America. Therefore, we used percolation columns to evaluate the effect of inexpensive chemical and organic amendments (gypsum and cow manure) on the reclamation of saline-sodic soils in the northeast of Brazil. Soil samples from two layers (0–20 cm and 20–40 cm in depth) were collected and placed in percolation columns. Then, we applied gypsum into the columns, with and without cow manure. The experiment followed a complete randomized design with three replications. The chemical amendment treatments included a control and four combinations of gypsum and cow manure. Percolation columns were subjected to a constant flood layer of 55 mm. We evaluated the effectiveness of sodic soil reclamation treatments via changes in soil hydraulic conductivity, chemical composition (cations and anions), electrical conductivity of the saturated soil-paste extract, pH, and the exchangeable sodium percentage. These results suggest that the combined use of gypsum and cow manure is better to reduce soil sodicity, improve soil chemical properties, and increase water infiltration than gypsum alone. Cow manure at 40 ton ha−1 was better than at 80 ton ha−1 to reduce the sodium adsorption ratio.

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Section: Effect On Soil Exchangeable Sodium Percentage (Esp)mentioning

confidence: 99%

Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure

Filho

Dias

Suddarth

et al. 2019

Water

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“…A temperature regulator kept working temperatures within the industrial cooling circuit operational range of 25-45 °C. A conductivity electrode monitored variation of the ionic force in solution ( Chhim et al, 2017 ). The constant composition method relies on the use of two automated burettes, controlled by Tiamo TM 2.5 software (Metrohm), filled with solutions of calcium chloride (reagent 1) and sodium carbonate (reagent 2) corresponding to concentrations of 7.08 × 10 −2 mol •L −1 of calcium and carbonate ions (calculated by PHREEC software), respectively and a sensor able to follow reagent consumption due to crystal growth.…”

Section: Constant Composition Methodsmentioning

confidence: 99%

“…This is a serious problem in industry, especially in high energy consumption equipment such as thermal and nuclear power plant cooling systems ( Neveux et al, 2016 ;Rahmani et al, 2015 ), reverse osmosis membrane desalination ( Al-Hamzah and Fellows, 2015 ;Phuntsho et al, 2014 ), distillation ( Al-Rawajfeh, 2008 ;Ghani and Al-Deffeeri, 2010 ) and petroleum production ( Heming et al, 2015 ). In electric power plant cooling systems, CaCO 3 precipitation and/or deposition depends on various factors such as circuit operating conditions (temperature range, concentration factor, water residence time) and circulating water quality (notably, concentrations of calcium and bicarbonate and of suspended matter) ( Chhim et al, 2017 ). Varying hydrodynamic regimes (turbulent in condenser tubes and laminar on the PVC packing of cooling towers) and construction materials (concrete housing, condenser material, PVC packing) also contribute to scale deposition.…”

Section: Introductionmentioning

confidence: 99%

“…In a previous study ( Chhim et al, 2017 ), the constant composition method, was adapted for calcium carbonate precipitation, in order to replicate experimentally the operating conditions of recirculating cooling water systems, especially with respect to the supersaturation range, presence of suspended matter (such as illite, silica, calcite) and the temperature range encountered. Determination of the thermodynamic driving force (supersaturation) was based on the relevant chemical equilibria, total alkalinity and calculation of the activity coefficients, using PHREEQC software.…”

Section: Introductionmentioning

confidence: 99%

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Performance of green antiscalants and their mixtures in controlled calcium carbonate precipitation conditions reproducing industrial cooling circuits

et al. 2020

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“…The importance of the solution stoichiometry, i.e. achievement of a ratio close to one between metal cation and carbonate anion for mono-mineralic carbonate growth has been investigated in multiple studies (Chhim et al, 2017;Hong and Teng, 2014;Larsen et al, 2010;Nehrke et al, 2007;Perdikouri et al, 2009;Zuddas and Mucci, 1994). Hellevang et al (2017) proposed that (strong) deviation from stoichiometry might have been behind the absence of carbonates in some of their supersaturated experiments that only yielded smectites.…”

Section: The 315 Millimolal Ammonium Bicarbonate -Seawater Experimentmentioning

confidence: 99%

Flow-through reactor experiments on basalt-(sea)water-CO 2 reactions at 90 °C and neutral pH. What happens to the basalt pore space under post-injection conditions?

Wolff-Boenisch

Galeczka

2018

International Journal of Greenhouse Gas Control

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Recent publications on the successful mineralisation of carbon dioxide in basalts in Iceland and Washington State, USA, have shown that mineral storage can be a serious alternative to more mainstream geologic carbon storage efforts to lock away permanently carbon dioxide. In this study we look at the pore solution chemistry and mineralogy of basaltic glass and crystalline basalt under post-injection conditions, i.e. after rise of the pH via matrix dissolution and the first phase of carbonate formation. Experimental findings indicate that further precipitation of carbonates under more alkaline conditions is highly dependent on the availability of divalent cations. If the pore water is deficient in divalent cations, smectites and/or zeolites will dominate the secondary mineralogy of the pore space, depending on the basalt matrix. At low carbonate alkalinity no additional secondary carbonates are expected to form meaning the remaining pore space is lost to secondary silicates, irrespective of the basalt matrix. At high carbonate alkalinity, some of this limited storage volume may additionally be occupied by dawsonite-if the Na concentration in the percolating groundwater (brine) is high. Using synthetic seawater as a proxy for the groundwater composition and thus furnishing considerable amounts of divalent cations to the carbonated solution, results in massive precipitation of calcite, magnesite, and other Ca/Mgcarbonates under already moderate carbonate alkalinity. More efficient use of the basaltic storage volume can thus be attained by promoting formation of secondary carbonates compared to the inevitable formation of secondary silicate phases at higher pH. This can be done by ensuring that the pore water does not become depleted in divalent cations, even after carbonate formation. Using seawater as carbonating fluid or injection of CO 2 into the basaltic oceanic crust, where saline fluids percolate, can reach this goal. However, such an approach needs sophisticated reactive transport modelling to adjust CO 2 injection rates in order to avoid too rapid carbonate deposition and clogging of the pore space too close to the injection well.

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Inhibition of calcium carbonate crystal growth by organic additives using the constant composition method in conditions of recirculating cooling circuits

Cited by 23 publications

References 58 publications

Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure

Reclaiming Tropical Saline-Sodic Soils with Gypsum and Cow Manure

Performance of green antiscalants and their mixtures in controlled calcium carbonate precipitation conditions reproducing industrial cooling circuits

Flow-through reactor experiments on basalt-(sea)water-CO 2 reactions at 90 °C and neutral pH. What happens to the basalt pore space under post-injection conditions?

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