scholarly journals Consumption of Ion Exchange Resin Waste in Concrete

2019 ◽  
Vol 8 (3) ◽  
pp. 6852-6855
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Ion Exchange Resin ◽  
Strength Test ◽  
Target Strength ◽  
Partial Replacement ◽  
Split Tensile Strength ◽  
Compressive Strength Test ◽  
Softening Process

This project deals with the investigation of strength property of concrete made by partial replacement of cement using ion exchange resin waste. Ion exchange resin waste is readily available at free of cost in various industries. We are using the cation exchange resin waste from water softening process. This waste material is collected from a local place in Chennai In recent years, ion exchange resin is used in concrete for corrosion resistant purpose. The percentage replacements of cement by using ion exchange resin waste are 10%, 20% and 30% by weight. The results indicate The selected concrete grade is M30 and water cement ratio is 0.45. Cubes and cylinders are casted with the specified replacement of cement by using ion exchange resin waste. The strength has been checked at 7 days, 14 days and 28 days curing for the specimens made with specified partial replacement of cement by using ion exchange resin waste. Cubes are subjected to compressive strength test and cylinders are subjected to split tensile strength test. It has been concluded that the reasonable strength of 31.76 N/mm2 (Target strength of M20 grade concrete) may be attained in M30 grade mix ratio while adding ion exchange resin waste as 10% replacement of cement. So the optimum percentage of replacement of cement is 10% for both cubes and cylinders.

Ion Exchange Resin Separation of Metals Occurring in Plant Material

1966 ◽  
Vol 49 (2) ◽  
pp. 298-305
Author(s):  
Eugene A Breault
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Ion Exchange Resin ◽  
Acid Solutions ◽  
Uniform Particles ◽  
Hydrochloric Acid Solutions ◽  
Ion Exchange Separation ◽  
Resin Separation ◽  
Unified Method

Abstract The study of the separation of metallic chlorides on Amberlite CG-120 (200–400 mesh) cation exchange resin was continvied. Na, K, Mo, Al, Ca, and Fe have been separated by hydrochloric acid solutions and determined by polarography or flame photometry. Semimicro quantities of these metals can be separated from each other with a minimum of eluting agent, small resin beds, and simple equipment. Mechanical grading of the air-dried resin was used to obtain more uniform particles. The ion exchange separation scheme offers advantages over present official procedures, and it should provide a unified method for the analysis of metals in mixtures. Further study is recommended.

scholarly journals Removal of lead, cadmium and copper ions from aqueous solutions by using ion exchange resin C 160

2016 ◽  
Vol 32 (4) ◽  
pp. 129-140 ◽  
Author(s):  
Agnieszka Bożęcka ◽  
Monika Orlof-Naturalna ◽  
Stanisława Sanak-Rydlewska
Keyword(s):  
Ion Exchange ◽  
Aqueous Solutions ◽  
Sorption Capacity ◽  
Exchange Resin ◽  
Copper Ions ◽  
Exchange Process ◽  
Cation Exchange Resin ◽  
Ion Exchange Resin ◽  
Adsorption Model ◽  
Ion Exchange Process

Abstract Industrial waste solutions may contain toxic Pb, Cu, Cd and other metal ions. These ions may also be components of leachates in landfills of ores. The toxicity of the ionic forms of these metals is high. For this reason the paper presents the results of studies on one of the methods to reduce their concentration in aqueous solutions. The article presents the results of studies on the removal of Pb2+, Cd2+ and Cu2+ ions from model aqueous solutions with synthetic ion exchange resin C 160 produced by Purolite. The investigated ion exchanger contains sulfonic acid groups (-SO3H) in its structure and is a strongly acidic cation-exchange resin. The range of the studied initial concentrations of the Pb2+, Cd2+ and Cu2+ ions in the solutions was from 6.25 mg/L to 109.39 mg/L. The results confirmed that the used ion exchange resin C160 efficiently removes the above-mentioned ions from the studied solutions. The highest degree of purification was achieved in lead solutions for the assumed range of concentrations and conditions of the ion exchange process. It reached 99.9%. In the case of other solutions, the ion exchange process occurs with lower efficiency, however it remains high and amounts to over 90% for all the ions. The results of research were interpreted on the basis of the Langmuir adsorption model. For each studied ion, sorption capacity of the ion exchange resin increases until the saturation and equilibrium state is reached. Based on the interpretation of the Langmuir equation coefficients, an indication can be made that the studied ion exchange resin has a major sorption capacity towards the copper ions. In their case, the highest value of constant qmax was obtained in the Langmuir isotherm. For Cu2+ ions it was 468.42 mg/g. For Pb2+ and Cd2+ ions, this parameter reached the values of 112.17 mg/g and 31.76 mg/g, respectively. Ion exchange resin C 160 shows the highest affinity for the Pb2+ ions. In this case, the achieved value of coefficient b is highest and equals 1.437 L/mg.

Development of pyrolytic monolithic carbon composites for the conditioning of spent ion exchange resins

2012 ◽  
Vol 1475 ◽  
Author(s):  
Pamela B. Ramos ◽  
Néstor O. Fuentes ◽  
Vittorio Luca
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Processing Parameters ◽  
Ion Exchange Resin ◽  
Mathematical Functions ◽  
Waste Forms ◽  
Resin Beads ◽  
Temperature Ramp ◽  
Exchange Resins

ABSTRACTThe pyrolysis of ion exchange resin beads that are used for the purification of water in reactor primary- and secondary-cooling circuits can result in stable and leach resistant carbonaceous products. However, free flowing beads are less desirable waste forms for disposal in sub-surface or surface repositories than monolithic masses of low porosity. We have investigated the pyrolysis of polymeric resin – cation exchange resin composites to give mechanically robust and chemically durable monolithic carbonaceous waste forms that are suitable for repository disposition. Also investigated was the dependence of product properties on various processing parameters (temperature ramp and final temperature). As a first approach, epoxy resins were used for the preparation of monoliths since such resins cure at room temperature and result in a relatively high carbon yield. Carbonaceous monolithic products were prepared at 400, 500, 600, 700 and 800 °C using a temperature ramp of 2°C/min. The products were maintained at the chosen temperatures for a period of one hour. Mass losses, volume reduction, hardness and compressive strength were measured and mathematical functions are proposed to describe the measured values of these properties. The carbon monoliths were observed to be mechanically robust.

scholarly journals Strength of Concrete using Clay as a Partial Replacement of Binder Content with and Without Lime

2021 ◽  
Vol 10 (3) ◽  
pp. 1-6
Author(s):  
S. B. Kandekar ◽  
◽  
S. K. Wakchaure ◽  
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Hydrated Lime ◽  
Strength Test ◽  
Binder Content ◽  
Partial Replacement ◽  
Split Tensile Strength ◽  
Tensile Strength Test ◽  
Compressive Strength Test

Materials are the most important component of building construction. The demands of construction material are increasing day by day significantly. This demand is increasing the material prices and scarcity of material in construction industry. To achieve economical and eco-friendly criteria naturally occurring material is selected. Clay is a natural material and it can be available easily. This paper interprets the experimental investigation on strength of concrete using clay as a partial replacement to binder content (cement) in concrete. The replacement percentages are grouped as 0%, 10%, 20%, 30%, 40% of clay and 5% of hydrated lime with cement in each series in M25 grade of concrete. To achieve the pozzolanic property of clay hydrated lime was added. Different tests are performed to determine the optimum percentage of clay as a replacement for binder content (cement) in concrete. The Compressive strength test, split tensile strength test and flexural strength test were performed on the specimens. Total 90 cubes of size 150 mm were prepared for compressive strength test, 30 cylinders of 150 mm diameter and 300 mm height were prepared for split tensile strength test and 30 beams of size 150 mm x 150 mm x 1000 mm were prepared to carry out the flexural strength test. The results are compared to find the ideal proportion of clay as a replacement for cement. It is found that 10% replacement with 5% hydrated lime gives satisfactory results.

scholarly journals Removal of Ionic Liquids from Oil Sands Processing Solution by Ion-Exchange Resin

2018 ◽  
Vol 8 (9) ◽  
pp. 1611 ◽  
Author(s):  
Hong Sui ◽  
Jingjing Zhou ◽  
Guoqiang Ma ◽  
Yaqi Niu ◽  
Jing Cheng ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ion Exchange ◽  
Oil Sands ◽  
Surface Characterization ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Ion Exchange Resin ◽  
Water Washing ◽  
Acid Cation ◽  
Exchange Resins

Ionic liquids (ILs) have been reported to be good process aids for enhanced bitumen recovery from oil sands. However, after the extraction, some ionic liquids are left in the residual solids or solutions. Herein, a washing–ion exchange combined method has been designed for the removal of two imidazolium-based ILs, ([Bmim][BF4] and [Emim][BF4]), from residual sands after ILs-enhanced solvent extraction of oil sands. This process was conducted as two steps: water washing of the residual solids to remove ILs into aqueous solution; adsorption and desorption of ILs from the solution by the sulfonic acid cation-exchange resin (Amberlite IR 120Na). Surface characterization showed that the hydrophilic ionic liquids could be completely removed from the solid surfaces by 3 times of water washing. The ionic liquids solution was treated by the ion-exchange resin. Results showed that more than 95% of [Bmim][BF4] and 90% of [Emim][BF4] could be adsorbed by the resins at 20 °C with contact time of 30 min. The effects of some typical coexisted chemicals and minerals, such as salinity, kaolinite (Al4[Si4O10](OH)8), and silica (SiO2), in the solution on the adsorption of ionic liquids have also been investigated. Results showed that both kaolinite and SiO2 exerted a slight effect on the uptake of [Bmim][BF4]. However, it was observed that increasing the ionic strength of the solution by adding salts would deteriorate the adsorption of [Bmim]+ on the resin. The adsorption behaviors of two ILs fit well with the Sips model, suggesting the heterogeneous adsorption of ionic liquids onto resin. The adsorption of ionic liquids onto Amberlite IR 120Na resin was found to be pseudo-second-order adsorption. The regeneration tests showed stable performance of ion-exchange resins over three adsorption–desorption cycles.

Study on Treatment of Heavy Metal Lons of Chemical Wastewater by Ion Exchange Resin

2014 ◽  
Vol 955-959 ◽  
pp. 2230-2233 ◽  
Author(s):  
Yong Gang Zeng ◽  
Long Li
Keyword(s):  
Heavy Metal ◽  
Ion Exchange ◽  
Cation Exchange ◽  
Flow Velocity ◽  
Metal Ion ◽  
Exchange Resin ◽  
Removal Rate ◽  
Cation Exchange Resin ◽  
Ion Exchange Resin ◽  
Resin Method

This paper used the ion exchange resin method to treat the heavy metal ion Cu2+ of a chemical wastewater and studied the flow velocity, pH and the temperature’s effect on Cu2+ removal effect by macroporous strongly acidic styrene type cation exchange resin D001. The results shown that: when the flow velocity was 1.5 mL/min, pH was 6.0 and the temperature was 30°C, the removal rate of Cu2+ by D001 reached 99.8%. The chemical wastewater could achieve the wastewater’s discharge standard.

scholarly journals Ion-Exchange Resins as Controlled Drug Delivery Carriers

2010 ◽  
Vol 2 (3) ◽  
pp. 597 ◽  
Author(s):  
M. V. Srikanth ◽  
S. A. Sunil ◽  
N. S. Rao ◽  
M. U. Uhumwangho ◽  
K. V. Ramana Murthy
Keyword(s):  
Drug Delivery ◽  
Ion Exchange ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Controlled Drug Delivery ◽  
Ion Exchange Resin ◽  
Ion Exchange Resins ◽  
Exchange Cation ◽  
Therapeutic Applications ◽  
Exchange Resins

Ion exchange resins (IER) are insoluble polymers that contain acidic or basic functional groups and have the ability to exchange counter-ions within aqueous solutions surrounding them. Based on the nature of the exchangeable ion of the resin as a cation or anion, it is classified as cationic or anionic exchange resins, respectively. The efficacy of ion exchange resins mainly depends upon their physical properties such as degree of cross-linking, porosity, acid base strength, stability, purity and particle size. Modified release of drugs from resinate (drug-resin complexes) is another potential application of ion exchange resins.  Due to the versatile utility of ion exchange resins, they are being used for various drug delivery and therapeutic applications. Resins used are polymers that contain appropriately substituted acidic groups, such as carboxylic and sulfonic for cation exchangers; or basic groups, such as quaternary ammonium group for anion exchangers. This review addresses different types of ion exchange resin, their properties, the chemistry; role of IER in controlled drug delivery systems, its therapeutic applications, methods of preparation of IER along with their resonates. Keywords: Anion exchange; Cation exchange; Resin; Controlled release; Resinates; Drug delivery. © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI: 10.3329/jsr.v2i3.4991               J. Sci. Res. 2 (3), 599-613 (2010) 

scholarly journals Effect of Rice Conch Shell Powder as a Partial Replacement of Cement in Normal Concrete

2021 ◽  
Vol 3 (3) ◽  
pp. 76-86
Author(s):  
Reiner Putra Pakanan ◽  
Jonie Tanijaya ◽  
Olan Jujun Sanggaria
Keyword(s):  
Strength Test ◽  
Partial Replacement ◽  
Normal Concrete ◽  
Split Tensile Strength ◽  
Snail Shell ◽  
Concrete Mixtures ◽  
Compressive Strength Test ◽  
Alternative Material ◽  
Shell Powder

Along with the increasing pace of development, many methods and research have been carried out and developed aimed at increasing the strength of concrete, one of which is by utilizing waste rice snail shells as a partial replacement of cement. This snail is considered a pest for farmers. Snail carcasses can also damage the environment and cause a bad smell. This can be used and utilized as an alternative material in concrete mixtures. The percentage of use of rice snail shell substitution varied, namely 0%, 10%, and 15%. The tests carried out were the compressive strength test, split tensile strength test, flexural strength test, and the modulus of elasticity of concrete with a concrete quality of 25 MPa. The test objects used were cylinders measuring 15 cm and 30 cm high and beams measuring 60 cm × 15 cm × 15 cm with variations in age of 7 days, 21 days, and 28 days. The highest value was obtained at 10% snail shell variation with 27,540 MPa, 2,735 MPa, 4,131 MPa, respectively. so that the 10% snail shell variation used in this study is still safe to use as a cement substitution material in normal concrete mixtures.

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