scholarly journals A new method: the usage of natural zeolite as a killer chemical for hydrogen peroxide during the hydrogen peroxide bleaching

2019 ◽  
Vol 70 (06) ◽  
pp. 519-522
Author(s):  
CANDAN CANDAN
Keyword(s):  
Hydrogen Peroxide ◽  
Particle Size ◽  
Quantitative Analysis ◽  
Cotton Fabric ◽  
Elemental Analysis ◽  
Natural Zeolite ◽  
The Other ◽  
New Method ◽  
Peroxide Bleaching ◽  
Icp Ms

In the study, the usage possibility of natural zeolite as hydrogen peroxide killer during the hydrogen peroxide bleaching was investigated. Natural zeolite from Gördes region with 30 µm particle size was used during the hydrogen peroxide bleaching of the cotton fabric as a hydrogen peroxide killer agent. ICP-MS elemental analysis of the natural zeolite was performed. Hydrogen peroxide concentration of the bleaching liquor was performed by quantitative analysis. It was seen that natural zeolite is so efficient to decrease in hydrogen peroxide concentration in the bleaching bath. It is thought that natural zeolite can be an alternative to antiperoxide enzymes and the other hydrogen peroxide killers which are commonly used in the industry.

scholarly journals Pengujian Zeolit Alam Mordenit Sebagai Penjerap Proses Pendegradasian Kandungan Amonium di dalam Air Tambak

2020 ◽  
Vol 21 (1) ◽  
pp. 49-55
Author(s):  
Nuryoto Nuryoto ◽  
Teguh Kurniawan ◽  
Indar Kustiningsih
Keyword(s):  
Particle Size ◽  
Natural Zeolite ◽  
The Other ◽  
Ammonium Concentration ◽  
Small Fish ◽  
Natural Zeolites ◽  
Absorption Time ◽  
Adsorption Time ◽  
Research Results ◽  
Other Hand

ABSTRACTIndonesia has an abundant quantity of natural zeolites that have not yet been utilized maximally. On the other hand, fishpond farmers have a problem regarding the presence of ammonium in the fishpond water which will negatively impact to survival of fish, especially small fish. To solve this problem, this research was utilizing natural zeolite to degrade ammonium in the fishpond water. This research aimed to test mordenite natural zeolite from Bayah as an adsorbent to collaborate some variables impact to reach more maximal adsorption. The variables that were used to be observed were: mordenite natural zeolite from Bayah as an adsorbent which has been activated by 1-7 N H2SO4 and the other was without activation, ammonium concentration of 80-800 ppm, the particle size of adsorbent of 80 and 150 mesh, stirring speed of 600 and 800 rpm, and without stirring by duration adsorption time of 60 minutes. The research results showed that mordenite natural zeolite after activated was able to adsorb of 100% ammonium, while for the mordenite natural zeolite from Bayah without stirring was of 80%, by the same absorption time. These results will give significant benefits for fishpond farmers to increase their productivity because of the increase in fish survival.Keywords: adsorption, adsorbent, zeolite, amoniumABSTRAKKandungan zeolit alam di Indonesia cukup melimpah dan belum termanfaatkan secara maksimal. Pada sisi lain petani tambak dihadapkan pada masalah terdapatnya kandungan amonium di dalam air tambak, yang akan berdampak negatif bagi keberlangsungan hidup ikan, terutama ikan yang masih kecil. Penelitian ini mencoba memanfaatkan zeolit alam guna mendegradasi kandungan amonium dalam air tambak. Tujuan penelitian ini adalah melakukan pengujian terhadap zeolit alam mordenit dari Bayah sebagai adsorben, baik dilakukan dengan pengadukan maupun tanpa pengadukan, serta mengkolaborasi beberapa variabel yang berpengaruh agar hasil adsorpsi lebih maksimal. Observasi dilakukan dengan zeolit alam mordenit dari Bayah yang telah diaktivasi dengan 1-7 N H2SO4 maupun tanpa aktivasi, rentang konsentrasi larutan amonium 80-800 ppm, ukuran partikel adsorben 80 dan 150 mesh, kecepatan pengadukan 600 dan 800 rpm, dan tanpa pengadukan serta lamanya waktu penyerapan 60 menit. Hasil penelitian menunjukan hasil yang sangat baik, dan secara umum zeolit alam mordenit Bayah teraktivasi telah mampu melakukan adsorpsi amonium sebesar 100%, sedangkan untuk zeolit alam mordenit Bayah tanpa pengadukan sebesar 80% pada waktu adsorpsi yang sama.Kata kunci: adsorpsi, adsorben, zeolit, amonium

Particle Size Effects in Geological Analyses by X-Ray Fluorescence

1985 ◽  
Vol 29 ◽  
pp. 587-592
Author(s):  
K.K. Nielson ◽  
V.C. Rogers
Keyword(s):  
Particle Size ◽  
Quantitative Analysis ◽  
Size Effects ◽  
Light Element ◽  
New Method ◽  
X Ray ◽  
Particle Size Effects ◽  
Sample Matrix ◽  
Xrf Analysis ◽  
The Matrix

Particle-size effects can cause significant errors in x-ray fluorescence (XRF) analysis of particulate materials. The effects are usually removed when samples are fused or dissolved to standardize the matrix for quantitative analysis. Recent improvements in numerical matrix corrections reduce the need to standardize the sample matrix via fusion or dissolution, particularly when the CEMAS method is used to estimate unmeasured light-element components of undefined materials for matrix calculations. A new method to correct for particle-size effects has therefore been examined to potentially avoid the need for destructive preparation of homogeneous samples.

Collaborative Study of a New Method for the Extraction of Light Filth from Ground Coffee

1972 ◽  
Vol 55 (1) ◽  
pp. 57-59
Author(s):  
Joel J Thrasher
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Tetrachloride ◽  
Collaborative Study ◽  
Mineral Oil ◽  
New Method ◽  
Official Method ◽  
Peroxide Bleaching ◽  
Filter Papers ◽  
Analytical Time ◽  
Ground Coffee

Abstract A collaborative study has been completed on a new method for light filth in ground coffee. The sample is defatted with chloroform, dried, and boiled in water; isopropanol is added and the sample is boiled again. Light filth is trapped off with mineral oil from a hot solution. The method yields better recoveries of insect fragments and rodent hairs than the official method. Other advantages are less analytical time, cleaner filter papers, and elimination of the use of carbon tetrachloride. It is recommended that the method be adopted as official first action to replace 40.007(b) for the isolation of light filth from ground coffee and that the hydrogen peroxide bleaching technique described earlier be adopted as a procedure to replace the sodium hypochlorite technique described in 40.006.

Laccase-mediated system pretreatment to enhance the effect of hydrogen peroxide bleaching of cotton fabric

2012 ◽  
Vol 50 (3) ◽  
pp. 782-787 ◽  
Author(s):  
Liqiang Tian ◽  
C. Branford-White ◽  
Wen Wang ◽  
Huali Nie ◽  
Limin Zhu
Keyword(s):  
Hydrogen Peroxide ◽  
Cotton Fabric ◽  
Peroxide Bleaching

Peroxide Bleaching of Parquet Blocks and Glue Lams

Holzforschung ◽  
2003 ◽  
Vol 57 (1) ◽  
pp. 75-80 ◽  
Author(s):  
V. Möttönen ◽  
A. Asikainen ◽  
P. Malvaranta ◽  
M. Öykkönen
Keyword(s):  
Hydrogen Peroxide ◽  
Wood Species ◽  
Solid Wood ◽  
Hydrogen Peroxide Solution ◽  
Suitable Method ◽  
New Method ◽  
Industrial Scale ◽  
Treatment Intensity ◽  
Birch Wood ◽  
Peroxide Bleaching

Summary The lack of a suitable method on an industrial scale has so far restricted the use of bleaching of solid wood in the woodworking industry. In this study, a new method ‘Wood-Brite™’, based on bleaching solid wood blocks with hydrogen peroxide solution, was investigated. According to our measurements, the lightness of all the wood species studied could be increased and the increase could be controlled by the intensity of peroxide treatment. Differences were observed in the change of chroma and hue of different wood species. Redness usually decreased regardless of the treatment intensity, except with teak, in which it increased markedly. At every treatment intensity, the yellowness of originally light birch wood decreased, but in other wood species it increased.

Hydrogen Peroxide Bleaching of Cationized Cotton Fabric

2019 ◽  
Vol 6 (5) ◽  
pp. 21-29
Author(s):  
Sha Fu ◽  
Matthew J. Farrell ◽  
Mary A. Ankeny ◽  
Edwin T. Turner ◽  
Victoria Rizk
Keyword(s):  
Hydrogen Peroxide ◽  
Statistical Model ◽  
Magnesium Sulfate ◽  
Cotton Fabric ◽  
Significant Loss ◽  
Bleaching Agent ◽  
Color Strength ◽  
Whiteness Index ◽  
Peroxide Bleaching ◽  
Screening Experiment

Hydrogen peroxide (H2O2) is the most commonly used bleaching agent for cotton fabric. However, the conventional H2O2 bleaching formula is not applicable for cationized cotton due to the low whiteness index after bleaching, fabric weakening, and a significant loss of cationic sites. In this work, magnesium sulfate (MgSO4) was added in the H2O2 bleaching formula to stabilize the bleaching system for cationized cotton. Additionally, a screening experiment with temperature and time, and sodium hydroxide (NaOH), H2O2, and MgSO4 concentrations as the factors, and whiteness index, bursting strength, and color strength from dyeing as the responses, was formulated. A statistical model was created using JMP software, which demonstrated how the bleaching conditions influenced the fabric properties. This procedure can be useful for bleaching cationized cotton in production settings.

Recovery of Rubber and Cotton from Uncured Tire Ply Scrap. Extraction Process

1931 ◽  
Vol 4 (3) ◽  
pp. 450-455
Author(s):  
Charles S. Powell
Keyword(s):  
Solvent Extraction ◽  
Cotton Fabric ◽  
Extraction Process ◽  
Difficult Problem ◽  
The Other ◽  
New Method ◽  
Rubber Cement ◽  
Shoe Soles

Abstract A new method for reclaiming uncured tire ply scrap is described. This is an application of the familiar solvent-extraction process. It possesses several advantages over the other methods of separating the rubber and cotton fabric in the scrap, particularly from the standpoint of waste of materials, for both the cotton and the rubber are completely reclaimed without deterioration. If the process is to have wide application, however, means must be devised for utilizing the dilute rubber cement produced. THE utilization of tire trims has always been a difficult problem. Composed of uncured rubber and long staple cotton, their value is considerable. Certain quantities, after being broken down on a mill, can be used in bead covers, flaps, shoe soles, and mats without detrimental effects. The Dunlop Rubber Company (2) has been granted a patent covering a composition of uncured ply scrap, ground scrap, etc., to be used in the manufacture of objects of fibrous rubber.

Evidence for the residual character of two soils, one on granite, the other on limestone in Peterborough County, Ontario

1969 ◽  
Vol 6 (5) ◽  
pp. 1217-1225 ◽  
Author(s):  
J. E. Gillespie ◽  
R. Protz
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Elemental Analysis ◽  
Clay Mineralogy ◽  
The Other ◽  
Crystalline Limestone

The morphology, particle size distribution, and clay mineralogy data of a Methuen soil derived from a granite and a Tweed soil derived from a crystalline limestone are interpreted as supporting the concept that these two soils are residual. Sand mineralogy and elemental analysis of mica support the residual hypothesis.

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