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Relevant bibliographies by topics / Calcium carbonate equivalence

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Academic literature on the topic 'Calcium carbonate equivalence'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Calcium carbonate equivalence"

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Erich, M. Susan, and Tsutomu Ohno. "Titrimetric determination of calcium carbonate equivalence of wood ash." Analyst 117, no. 6 (1992): 993. http://dx.doi.org/10.1039/an9921700993.

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Pettit, Aaron. "Summary of Calcium Carbonate Equivalence Potential in Various Poultry Litter Types." Journal of Scientific Research and Reports 15, no. 1 (2017): 1–5. http://dx.doi.org/10.9734/jsrr/2017/34557.

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Aaron, Pettit. "Summary of Calcium Carbonate Equivalence Potential in Various Poultry Litter Types." Journal of Scientific Research & Reports 15, no. 1 (2017): 1–5. https://doi.org/10.9734/JSRR/2017/34557.

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The lab experiment was to evaluate lime potential of poultry litter being applied to agriculture fields for crop nitrogen and phosphors needs. Poultry litter lime potential was not being consider by farmer, even though soil pH increases were being noted in some fields were litter was applied. The experiment was conducted on poultry litter samples submitted to North Carolina Department of Agriculture (NCDA&CS) Plant/Waste/Solution/Media lab. Samples were divided and waste analysis with CCE% test was conducted from 1/23/2014 to 2/14/2015. Samples were divide into four types (PLB – Boiler, Tu

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Park, Suck-Yong, and Sung-Up Choi. "Pharmaceutical Equivalence of Film-Coated and Chewable Tablets: A Comparative Dissolution Study Using Pulverized Chewable Tablets." Pharmaceuticals 17, no. 11 (2024): 1525. http://dx.doi.org/10.3390/ph17111525.

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Famotidine is a histamine H2 receptor antagonist used in the treatment of gastrointestinal disorders. It is available in multiple formulations, including film-coated tablets, chewable tablets, oral suspension, and injections. The purpose of this study was to develop and evaluate the film-coated tablet (FT) containing famotidine, magnesium hydroxide, and precipitated calcium carbonate, designed to be pharmaceutically equivalent to the marketed chewable tablet (CT). To achieve the pharmaceutical equivalence of two tablets, the dissolution profiles of FT should be similar to those of CT. However,

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Ohno, Tsutomu, and M. Susan Erich. "Incubation-derived calcium carbonate equivalence of papermill boiler ashes derived from sludge and wood sources." Environmental Pollution 79, no. 2 (1993): 175–80. http://dx.doi.org/10.1016/0269-7491(93)90067-x.

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Huang, Jinsheng, Paul R. Fisher, and William R. Argo. "Container Substrate-pH Response to Differing Limestone Type and Particle Size." HortScience 42, no. 5 (2007): 1268–73. http://dx.doi.org/10.21273/hortsci.42.5.1268.

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The objective of this study was to develop reactivity indices to describe the pH response for liming materials incorporated into container substrates. Three reactivity indices [particle size efficiency (PSE), fineness factor (FF), and effective calcium carbonate equivalence (ECC)] were developed based on lime particle size distribution and lime neutralizing value (NV) in CaCO3 equivalent. Six lime particle size fractions (2000 to 850, 850 to 250, 250 to 150, 150 to 75, 75 to 45, and <45 μm) separated from each of three calcitic limes and seven dolomitic limes were used to calibrate PSE, and

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Ali, Mujahid, Faisal Mahmood, Christian Magoua Mbeugang, Sunel Kumar, Jiazhen Tang, and Bin Li. "Synthesis of syngas from municipal solid waste in a fluidized bed gasifier." Thermal Science, no. 00 (2024): 83. http://dx.doi.org/10.2298/tsci231109083a.

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In this study, three representative materials, wood, paper, and cloth from municipal solid waste, were studied separately in an atmospheric fluidized bed gasifier. The effects of different feedstock, equivalence ratio, gasification temperature, and calcium carbonate presence on syngas composition, the lower heating value, and carbon conversion efficiency were investigated at different operating temperatures (800-950?C), and the equivalence ratio range from 0.2 and 0.5. As the equivalence ratio increased, the yields of syngas and its lower heating value decreased, whereas the CO2 yield and carb

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Huang, Jinsheng, Paul R. Fisher, and William R. Argo. "(70) Improved Reactivity Indices for Horticultural Limes." HortScience 41, no. 4 (2006): 1019A—1019. http://dx.doi.org/10.21273/hortsci.41.4.1019a.

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The objective was to develop indices to describe reactivity of different lime particle size fractions with respect to pH change in horticultural substrates. Particle size efficiency (PSE) was calibrated from pH responses for separated six lime particle size fractions (>850, 850 to 250, 250 to 150, 150 to 75, 75 to 45, and <45 μm) from three calcitic limes, and seven dolomitic limes, based on their increase in substrate pH relative to reagent grade CaCO3 when mixed in a sphagnum peat substrate at 5 g CaCO3 equivalents per liter of peat. The fineness factor (FF) was calculated for a liming

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Fisher, Paul R., William R. Argo, and John A. Biernbaum. "Validation of a Fertilizer Potential Acidity Model to Predict the Effects of Water-soluble Fertilizer on Substrate pH." HortScience 49, no. 8 (2014): 1061–66. http://dx.doi.org/10.21273/hortsci.49.8.1061.

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Two experiments were run to validate a “Nitrogen Calcium Carbonate Equivalence (CCE)” model that predicts potential fertilizer basicity or acidity based on nitrogen (N) form and concentration for floriculture crops grown with water-soluble fertilizer in containers with minimal leaching. In one experiment, nine bedding plant species were grown for 28 days in a peat-based substrate using one of three nutrient solutions (FS) composed of three commercially available water-soluble fertilizers that varied in ammonium to nitrate (NH4+:NO3–) ratio (40:60, 25:75, or 4:96) mixed with well water with 130

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Kassim, Jabbar K. "Method for Estimation of Calcium Carbonate in Soils from Iraq." International Journal of Environment 1, no. 1 (2013): 9–19. http://dx.doi.org/10.3126/ije.v1i1.8524.

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Attempts have been made to evaluate four methods of quantitative determination of soil carbonates. Calcium carbonates equivalent were determined by the acid neutralization, calcimeter and acetic acid methods. Also, it obtains by the fourth methods when the acid neutralization method is corrected against proton adsorption. The acid neutralization method gave significantly higher estimates of total carbonates and different from each of the others. The calcimeter method gave the lower estimates of CaCO3 equivalent. The results showed that the corrected values of CaCO3 equivalent did not differ si

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Dissertations / Theses on the topic "Calcium carbonate equivalence"

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Rogovska, Natalia. "Use of precision agriculture technologies in studying the relationships among soil pH, calcium carbonate equivalent, soybean cyst nematode population density, and soybean yield." [Ames, Iowa : Iowa State University], 2006.

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Rodrighero, Maik Barbosa. "CALAGEM SUPERFICIAL COM CALCÁRIO CALCÍTICO E DOLOMÍTICO DE DIFERENTES GRANOLUMETRIAS EM SISTEMA PLANTIO DIRETO." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2012. http://tede2.uepg.br/jspui/handle/prefix/2237.

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Made available in DSpace on 2017-07-25T19:29:58Z (GMT). No. of bitstreams: 1 Maik Rodrighero.pdf: 828244 bytes, checksum: b17d81b60eaad6eff20ad64666064e48 (MD5) Previous issue date: 2012-12-21<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>To control soil acidity in no-till systems, lime is broadcast on the surface without incorporation. In order to test the hypothesis that the source and particle size of the corrective influence the soil reaction and crop response to lime on the surface in no-till system, two experiments were conducted in Tibagi (PR), one in clayey Oxisol

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Book chapters on the topic "Calcium carbonate equivalence"

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Yamin Ali, Mohammad, Cedric M. John, and Howard D. Johnson. "Diagenesis of the Central Luconia Carbonate Platforms: The Roles of Early Dolomitization and Late Hydrothermal Fluids in Enhancing Deep Reservoir Properties." In Cenozoic Isolated Carbonate Platforms—Focus Southeast Asia. SEPM (Society for Sedimentary Geology), 2023. http://dx.doi.org/10.2110/sepmsp.114.05.

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The Central Luconia Miocene carbonate platform represents one of the largest regions of Liquified Natural Gas (LNG) production in the world. Although several studies have been conducted, the reservoir diagenesis of this gas-producing region remains poorly understood. To address this issue, a comprehensive and systematic diagenetic study has now been undertaken. Methodologies used included petrography, X-ray diffractometry (XRD), scanning electron microscopy (SEM), backscattered electron microscopy (BSEM), and cathodoluminescent microscopy (CL). Other technologies included elemental analysis us

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Morowitz, Harold J. "The Litmus Test." In Entropy and the Magic Flute. Oxford University PressNew York, NY, 1993. http://dx.doi.org/10.1093/oso/9780195081992.003.0036.

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Abstract IT’S DIFFICULT TO READ through a newspaper these days without encountering reference to a litmus test. Whether the article deals with appointing a Supreme Court justice or the director of the National Institutes of Health, the notion of such a test keeps working its way into the political rhetoric. To those of us who first encountered litmus in cherished childhood chemistry sets, the notion of a political litmus test impinges on the psyche in a strange way. Obviously, a more detailed understanding of litmus is called for. It begins, appropriately enough, with the 1911 edition of Encyc

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Conference papers on the topic "Calcium carbonate equivalence"

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Oddo, J. E., and M. B. Tomson. "Brine Production and Some Solutions to the Problem of Calcium Carbonate Scale Formation." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90073.

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Abstract Brine production averages seven barrels of brine per barrel of hydrocarbon equivalent and can amount to 30 - 50 barrels or more in some fields. Scale deposited within production systems associated with high volumes of produced brine can pose serious problems to the operator. Controlling scale affects the economics of the field and a scale problem left untreated can result in the total loss of production or costly replacement of facilities. Predicting potential scaling problems can be difficult and numerous saturation indexes have been developed to assist in this regard. Some of these

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Ghanbari, Elmira, Scott Lillard, and Caleb Carpenter. "The Influence of Scale Formation on the AC Corrosion of API Grade X65 Pipeline Steel under Cathodic Protection." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09809.

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Abstract In a previous investigation, AC corrosion rate data generated from weight loss experiments was compared with the results from a model for AC corrosion that was developed using a modified Butler-Volmer approach. The model considered the anodic and cathodic Tafel slopes, diffusion limited oxygen transport, interfacial capacitance and solution resistance. Both experimental and model results highlighted the importance of the interfacial capacitance on the rate of AC corrosion, especially at a frequency of 60Hz. In the present work, an extension of this finding is presented to investigate

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Ergut, Ali, and Yiannis A. Levendis. "A Low Emission Power Plant: An Integrated Technique to Remove Major Pollutants." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33203.

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This manuscript presents an integrated approach for the simultaneous reduction of major combustion-generated pollutants from powerplants. This approach combines dry-sorbent injection for SO2 concentration reduction, coal injection (reburning) for NOx reduction in conjunction, with a ceramic honeycomb filter for particulate emission capture. A succinct economic analysis was conducted to show the financial feasibility of the system, as compared with other state of the art systems. The performance of low-cost commercial sorbent, calcium carbonate [CaCO3] as well as sodium bicarbonate [NaHCO3] was

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Aljuryyed, Norah, Abdullah Al Moajil, Saeed Alghamdi, and Sajjad AlDarweesh. "Evaluation of High Dissolving-Power Retarded Acid Recipes for Carbonate Acidizing." In SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205542-ms.

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Abstract Development of retarded acid recipes that can have both adequate dissolving power and controllable reaction rate is desired to maximize the effectiveness of matrix stimulation treatments for oil and gas wells. Hydrochloric acid (HCl) has high dissolving power, however, the reaction rate with carbonate rock is uncontrollable and can cause face dissolution. Organic acids have low dissolving power and controllable reaction rate. The objective of this paper was to compare the effectiveness of three low viscosity retarded acid recipes with dissolving powers of 15 wt% and &gt;20 wt% HCl

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Yue, Zhiwei David, Qiwei Wang, Tao Chen, Tawfik Ghamdi, Yi-Tsung Alex Lu, and Ashley Ariyaratna. "Optimizing Scale Inhibitor Squeeze Performance for Chalk Reservoirs: Concept, Validation, to Treatment Design." In SPE Oilfield Scale Symposium. SPE, 2024. http://dx.doi.org/10.2118/218746-ms.

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Abstract One of the largest oilfields experienced calcite scale depositions on downhole tubing and surface equipment. The incumbent solution is a conventional precipitation-type scale inhibitor squeeze. However, the chalk reservoir features calcium-rich formation waters and strong binding affinities to the selected inhibitor. Such factors often challenge the squeeze design with brine incompatibility, water-loading, and low inhibitor return concentrations in the flowbacks, leading to higher frequency of treatments especially when higher inhibitor MECs are required. This study details four squee

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Sheridan, Trisha. "Effects of Calcareous Deposits on Water-Lubricated Propeller Shaft Operations." In SNAME Propeller and Shafting Symposium. SNAME, 2023. http://dx.doi.org/10.5957/pss-2023-003.

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Calcareous deposits in some locations are an ongoing problem in water-lubricated propeller shaft applications causing accelerated bearing wear. Literature has shown deposit formation is correlated to Impressed Current Cathodic Protection (ICCP) system operations, but as ICCP is an essential system for corrosion control of marine vessels, alternative solutions must be found to eliminate the issue. Testing at Thordon Bearings Inc. included 5 metals – CuSn12 bronze (CC483K equivalent), PN-91 bronze (C90500 equivalent), Inconel 625®, 316L SS and Duplex 2205 and two applied voltage settings represe

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Li, Jiang, Stewart Suzanne, and Abbott Jonathan. "New Formulation for High Temperature Acidizing Treatment Using Sustainably Sourced Additives." In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213608-ms.

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Abstract Calcite reservoir represents a significant portion of hydrocarbon resources in subterranean formations. Most mineral acid based stimulation treatments to carbonate and sandstone reservoirs under high temperature encounter a fundamental problem, i.e., the etching rates are too fast and the treatment fluid is fully spent before it has the opportunity to be transported deeper into the formation, resulting in ineffective matrix treatment. The materials and compositions described herein are able to modulate the critical etching rate so that it can penetrate deep into the formation, generat

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Van Steene, Marie, Shouxiang Ma, and Sherif Ghadiry. "Rigless Mineralogy Logging- A Reality for Improved Evaluation of Complex Formations." In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213525-ms.

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Abstract A new slim pulsed neutron (nPN) logging technology has recently been introduced in the industry. Although the technology's main deliverables aim at reservoir saturation monitoring, the technology has seen substantial improvements in quantitative mineralogy logging. It is now capable of providing mineralogy data quality on par with openhole measurements, thus filling the gap where mineralogy data are required but not acquired during openhole logging. The main objective of this paper is to assess this nPN technology for formation mineralogy, with discussions of advantages, sensitivities

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Phukan, Madhujya L., Saad A. Siddiqi, Abdulla Alblooshi, et al. "Sedimentology, Geochemistry, and Reservoir Potential of the Organic-Rich Tuwaiq Mountain, Hanifa and Jubaila Formations, Abu Dhabi, UAE." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/208097-ms.

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Abstract Objectives/Scope: The late Callovian to early Kimmeridigian deposited Tuwaiq Mountain, Hanifa and Jubaila Formations are among the most prolific source rocks in the middle east. These sediments have recently been considered as potential unconventional gas reservoir in UAE. This study integrates sedimentological, structural, geochemical and pore-scale datasets to provide a better understanding of the depositional framework and its effects on the reservoir properties. Methods, Procedures, Process: Dunham Classification (1962) which was later modified by Embry & Klovan (1971) is the

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Deshmukh, Sufyan, Marcelo Dourado Motta, Sameer Prabhudesai, et al. "Use of Micronized Weighting Agents for High Density Completion Fluids: A Case Study." In IADC/SPE Asia Pacific Drilling Technology Conference. SPE, 2021. http://dx.doi.org/10.2118/201065-ms.

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Abstract A unique invert emulsion fluid (IEF) weighted up with treated micronized weighting agent (MWA) slurries has been developed and successfully implemented in the field as a completion and testing fluid. The utilization of this unique IEF by design allowed the fluid properties to be lower on viscosity and superior suspension characteristics, which allowed for thermally stable fluid and provided excellent downhole hydraulics performance. Much of the earlier development and deployment of this type of IEF was focused on drilling for sections in narrow mud weight and fracture gradient windows

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