Preparation of Slow-Release Insecticides from Biogas Slurry: Effectiveness of Ion Exchange Resin in the Adsorption and Release of Ammonia Nitrogen

The insecticidal ingredient in a biogas solution being fully utilized by cation exchange resin to produce slow-release insecticide is of great social value. In this work, the feasibility of ammonia nitrogen in a biogas slurry loaded on resin as a slow-release insecticide was evaluated by studying the effect of adsorption and the slow release of ammonia nitrogen by resin. The effects of the ammonia nitrogen concentration, resin dosage, adsorption time and pH value on the ammonia nitrogen adsorption by the resin were studied. The results showed that the ion exchange resin had a good adsorption effect on the ammonia nitrogen. With the increase of the resin dosage, time and ammonia nitrogen concentration, the adsorption capacity increased at first and then stabilized. The ammonia nitrogen adsorption capacity reached its maximum value (1.13 mg) when the pH value was 7. The adsorption process can be fitted well by the Langmuir isothermal adsorption equation and quasi-second-order kinetic model. Additionally, the release rate of the ammonia nitrogen increased with the increasing sodium chloride concentration. The adsorption capacity of ammonia nitrogen by the D113 (resin type) resin decreased by 15.8% compared with the ammonium chloride solution. The report shows that the ion exchange resin has a good adsorption effect on ammonia nitrogen, which is of guiding significance for expanding the raw materials for slow-release insecticides, improving the utilization rate of biogas slurry and cleaner production of slow-release insecticides from biogas slurry. Additionally, all variables showed statistical differences (p < 0.05).

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CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed Bed

Frontiers in Energy Research ◽

10.3389/fenrg.2021.772710 ◽

2021 ◽

Vol 9 ◽

Author(s):

Mengqi Wei ◽

Qiuyue Zhao

Keyword(s):

Activated Carbon ◽

Ion Exchange ◽

Adsorption Capacity ◽

Gas Flow ◽

Exchange Resin ◽

Ion Exchange Resin ◽

Adsorption Rate ◽

Adsorption And Desorption ◽

Product Gas ◽

Adsorption Temperature

The waste ion-exchange resin–based activated carbon (WIRAC) was utilized for CO2 adsorption. The effect of adsorption temperature, gas flow, CO2 concentration, and adsorbent filling content on CO2 adsorption properties of WIRAC and the effect of desorption temperature and sweep gas flow on CO2 desorption performances of WIRAC were researched. In the adsorption process, with the increase of adsorption temperature, the CO2 adsorption capacity and adsorption rate decrease; as the gas flow increases, the CO2 adsorption capacity decreases, but the adsorption rate increases; with the increase of CO2 concentration and adsorbent filling content, the CO2 adsorption capacity and adsorption rate both increase. In the desorption process, the higher the desorption temperature and the smaller the sweep gas flow, the higher the CO2 purity of product gas and the longer the desorption time. In order to make sure the adsorbent be used efficiently and the higher CO2 concentration of product gas, the adsorption and desorption conditions selected should be a suitable choice.

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Synthesis, characterization and application of ion exchange resin as a slow-release fertilizer for wheat cultivation in space

Acta Astronautica ◽

10.1016/j.actaastro.2016.06.048 ◽

2016 ◽

Vol 127 ◽

pp. 579-586 ◽

Cited By ~ 3

Author(s):

Bowei Li ◽

Chen Dong ◽

Zhengpei Chu ◽

Weizhe Zhang ◽

Minjuan Wang ◽

...

Keyword(s):

Ion Exchange ◽

Exchange Resin ◽

Slow Release ◽

Ion Exchange Resin ◽

Slow Release Fertilizer ◽

Wheat Cultivation

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Remediation of Simulated Landfill’s Leachate Using Waterworks Sludge and Other Conventional Materials

Association of Arab Universities Journal of Engineering Sciences ◽

10.33261/jaaru.2019.26.3.006 ◽

2019 ◽

Vol 26 (3) ◽

pp. 45-56

Author(s):

Israa M. Ali ◽

Ayad A. H. Faisal

Keyword(s):

Activated Carbon ◽

Ion Exchange ◽

Exchange Resin ◽

Treatment Plant ◽

Ion Exchange Resin ◽

Ammonia Nitrogen ◽

Monolayer Adsorption ◽

Pseudo Second Order ◽

Waterworks Sludge ◽

Langmuir And Freundlich Models

The possibility of utilizing waterworks sludge as byproduct from water supply treatment plant for the remediation of simulated leachate contaminated with cadmium, dissolved organic matter (COD), and ammonia nitrogen (NH3-N) was investigated through batch study in comparison with conventional sorbents specifically activated carbon and ion-exchange resin Amberlite IR120 Na. Batch sorption experiments of single and multi-components systems were conducted to represent the acetogenic phase (pH= 5.5). Results proved that the sludge, activated carbon and ion-exchange resin are efficient sorbents for removal of cadmium, COD, and NH3-N respectively with removal efficiencies ranged from 35 to 95% for all experiments. Equilibrium isotherms were analyzed using the Langmuir and Freundlich models. Kinetic data were obtained and analyzed using pseudo-first-order and pseudo second-order equations. The sorption isotherm data were fitted well to the Langmuir isotherm and the monolayer adsorption capacity was found as 5.634, 14.908 and 3.938 mg/g for sorption of Cd (II) onto sludge, NH3-N onto resin and COD onto activated carbon respectively.

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Preparation and Characterization of Polyamidoxime Chelating Resin from Rubberwood Fibre-G-Polyacrylonitrile

Adsorption Science & Technology ◽

10.1260/0263-6174.27.7.661 ◽

2009 ◽

Vol 27 (7) ◽

pp. 661-670 ◽

Cited By ~ 7

Author(s):

Faraj A. Abuilaiwi ◽

Muataz Ali Atieh ◽

Mansor B. Ahmad ◽

Nor Azowa Ibrahim ◽

Mohamad Zaki Ab. Rahman ◽

...

Keyword(s):

Ion Exchange ◽

Metal Ions ◽

Adsorption Capacity ◽

Exchange Resin ◽

Cation Exchange Resin ◽

Ion Exchange Resin ◽

Chelating Resin ◽

Solution Ph ◽

Ft Ir

Grafted rubberwood fibre was converted to polyamidoxime ion-exchange resin in order to remove heavy metal ions from aqueous solution. The cation-exchange resin existed predominantly in the syn-hydroxyamino form. The water uptake by the resin was ca. 31 g/g dry resin while its hydrogen ion capacity was 3.6 mmol/g. The adsorption capacity of the resin towards different metal ions from wastewater was determined at different pH values within the range 1–6. The prepared chelating ion-exchanger exhibited the highest adsorption capacity towards Cu2+ ions (3.83 mmol/g), followed by Cd2+, Fe3+, Pb2+, Ni2+ and Co3+ ions, respectively. The results showed that the adsorption capacity depended on the solution pH. Polyamidoxime ion-exchange resin was also used to separate Co3+ and Ni2+ ions from Cu2+ ions using a column technique. On passing Cu2+/Ni2+ and Cu2+/Co3+ ion mixtures through the resin at pH 3, Cu2+ ions were adsorbed by the resin but no sorption of Ni2+ or Co3+ ions was detected. Approximately 98% of the Cu2+ ions could be desorbed from the resin. FT-IR spectroscopy was used to confirm the conversion of polyacrylonitrile-g-rubberwood fibre to polyamidoxime.

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The analysis of ion exchange resin adsorb Li from ash solution

World Journal of Engineering ◽

10.1108/wje-07-2016-0023 ◽

2017 ◽

Vol 14 (3) ◽

pp. 217-221 ◽

Cited By ~ 1

Author(s):

Xiang Nie ◽

Shanshan Zhao ◽

Yanheng Li

Keyword(s):

Ion Exchange ◽

Transition Economy ◽

Exchange Resin ◽

Coal Ash ◽

Ion Exchange Resin ◽

Short Supply ◽

Adsorption Effect ◽

Content Type ◽

Basic Resin ◽

Resin Adsorption

Purpose This paper aims to take the four resin as adsorbent and coal ash alkaline solution as the material and use the single factor experimental method to study absorption influence factors for each resin to absorb lithium. At the same time, the authors got the special properties of some kinds of resin and compared the test results of each resin at the optimum factors. Design/methodology/approach Because many factors affect the test, this study uses the method of comparison and control variables. This method study on the influencing factors of ion exchange resin adsorption Li+. Findings In these adsorption experiments, the basic resin adsorption effect is more obvious. The optimum adsorption conditions are as follows: resin quality is 0.1 g, the volume of fly ash solution is 100 ml, magnetic stirrer speed is 140 r/min and the adsorption time is 60 min. Under these conditions, the adsorption rate of Li+ could reach 25.17 per cent aluminum. Originality/value Li extracted from coal ash can not only relieve the lithium resources in short supply but can also provide a new mode to the field of coal resources in recycling economy and transition economy. At the same time, the extraction of Li resources will provide an important reserve of raw materials for the future of nuclear power plant.

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Experimental Study of Modified Coal Fly Ash Adsorption Properties on Ammonia-Nitrogen in Biogas Slurry

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.726-731.2687 ◽

2013 ◽

Vol 726-731 ◽

pp. 2687-2690

Author(s):

Qian Cheng ◽

Xing Yong Liu ◽

Min Li

Keyword(s):

Fly Ash ◽

Ph Value ◽

Coal Fly Ash ◽

Nitrogen Adsorption ◽

Ammonia Nitrogen ◽

Adsorption Properties ◽

Biogas Slurry ◽

Adsorption Effect ◽

Adsorption Time ◽

Initial Ph

With the development of the biogas construction, a plenty of biogas slurry was generated. It brought destruction to the environment for the biogas slurry was rich in nutrient components, especially ammonia-nitrogen. Its important that biogas slurry should be treated before it returns to the environment. The zeolite is extensively used in ammonia-nitrogen adsorption for its good adsorption effect. In this study, a modified coal fly ash (CFA) which was produced from raw CFA and had similar structure with zeolite was used as the adsorbent to adsorb ammonia-nitrogen in biogas slurry. The optimum adsorption conditions of modified CAF on adsorbing ammonia-nitrogen in biogas slurry were explored. The results showed that the best conditions were: the mass of modified CAF 1.3g, the initial pH value of solution 5~7 and the adsorption time 20 min.

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Adsorption and Desorption Behavior of Ectoine Using Dowex® HCR-S Ion-Exchange Resin

Processes ◽

10.3390/pr9112068 ◽

2021 ◽

Vol 9 (11) ◽

pp. 2068

Author(s):

Yu-Chi Wu ◽

Yu-Hong Wei ◽

Ho-Shing Wu

Keyword(s):

Ion Exchange ◽

Exchange Resin ◽

Ph Value ◽

Ion Exchange Resin ◽

Intraparticle Diffusion ◽

Second Order ◽

Isotherm Models ◽

Initial Concentration ◽

Operation Conditions ◽

Pseudo Second Order

Dowex® HCR-S ion-exchange resin was used to adsorb ectoine in a batch system under varying operation conditions in terms of contact time, temperature, pH value, initial concentration of ectoine, and type of salt. Six adsorption isotherm models (Langmuir, Freundlich, Temkin, Dubinin–Radushkevich, Sips, and Redlich–Peterson) and three kinetic models (pseudo-first-order, pseudo-second-order, and intraparticle diffusion) were used to investigate the ectoine adsorption mechanism of ion-exchange resin. According to the experimental results, the mechanism of ectoine adsorption using an ion exchanger includes the ion-exchange reaction and physisorption. Both the Langmuir and Freundlich models were found to have a high fitting. For the kinetic analysis, the pseudo-second-order and intraparticle diffusion models were suitable to describe the ectoine adsorption. Dowex® HCR-S resin has an average saturated adsorption capacity of 0.57 g/g and 93.6% of ectoine adsorption at 25~65 °C, with an initial concentration of 125 g/L. By changing the pH of the environment using NaOH solution, the adsorbed ectoine on the ion-exchange resin can be desorbed to 87.7%.

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OPTIMIZATION OF DNA EXTRACTION METHODS FROM BIOLOGICAL MATERIALS OF HONEY BEES IN A DIFFERENT METAMOTPHOSIS PHASE

Animal Breeding and Genetics ◽

10.31073/abg.52.22 ◽

2016 ◽

Vol 52 ◽

pp. 171-176

Author(s):

M. Palkina ◽

O. Metlitska

Keyword(s):

Ion Exchange ◽

Dna Extraction ◽

Honey Bees ◽

Biological Material ◽

Exchange Resin ◽

Ion Exchange Resin ◽

Extraction Methods ◽

Chelex 100 ◽

Drone Brood ◽

Dna Extraction Methods

The aim of the research – adaptation, optimization and using of existing DNA extraction methods from bees’ biological material with the reagent «Chelex-100" under complex economic conditions of native laboratories, which will optimize labour costs and improve the economic performance of DNA extraction protocol. Materials and methods. In order to conduct the research the samples of honey bees’ biological material: queen pupae exuviae, larvae of drone brood, some adult bees’ bodies (head and thorax) were selected. Bowl and drone brood were obtained from the experimental bee hives of Institute of Apiculture nd. a. P. I. Prokopovich of NAAS. DNA extraction from biosamples of Apis mellifera ssp. was carried out using «Chelex-100®» ion exchange resin in different concentrations and combinations. Before setting tests for determination of quantitative and quality indexes, dilution of DNA samples of the probed object was conducted in ratio 1:40. The degree of contamination with protein and polysaccharide fractions (OD 260/230), quantitative content of DNA (OD 260/280) in the extracted tests were conducted using spectrophotometer of «Biospec – nano» at the terms of sample volume in 2 µl and length of optical way in 0,7 mm [7]. Verification of DNA samples from biological material of bees, isolated by «Chelex-100®», was conducted after cold keeping during 24 hours at 20°C using PСR with primaries to the fragment of gene of quantitative trait locus (QTL) Sting-2 of next structure [8]: 3' – CTC GAC GAG ACG ACC AAC TTG – 5’; 3' – AAC CAG AGT ATC GCG AGT GTT AC – 5’ Program of amplification: 94 °C – 5 minutes – 1 cycle; 94 °C – 1 minute, 57°C – 1 minute, 72 °C – 2 minutes – 30 cycles; elongation after 72°C during 2 minutes – 1 cycle. The division of obtained amplicons was conducted by gel electrophoresis at a low current – 7 µÀ, in 1,5 % agarose gel (Sigma ®) in TAE buffer [7]. The results. At the time of optimization of DNA isolation methods, according to existing methods of foreign experts, it was found optimal volume of ion exchange resin solution was in the proposed concentration: instead of 60 µl of solution used 120 µl of «Chelex-100®», time of incubation was also amended from 30 minutes to 180 minutes [9]. The use of the author's combination of method «Chelex-100®» with lysis enzymes, proteinase K and detergents (1M dithiothreitol), as time of incubation was also amended, which was reduced to 180 minutes instead of the proposed 12 hours [10]. Changes in quality characteristics of obtained DNA in samples after reduction in incubation time were not found. Conclusions. The most economical method of DNA isolation from bees’ biological material is 20% solution of «Chelex-100» ion exchange resin with the duration of the incubation period of 180 minutes. It should also be noted that the best results can be obtained from exuviae, selected immediately after the queen’s exit from bowl, that reduces the likelihood of DNA molecules destruction under the influence of nucleases activation, but not later than 12 hours from release using the technology of isolated obtain of queens.

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