Determination of trace 2,4,6-triamino-1,3,5-triazine in water using the activated carbon adsorption method and GC/MS.

Humans need water with good quality to fulfill their needs. Water with high hardness content will have a bad impact if consumed continuously, so the adsorption method is carried out to reduce the concentration of Ca2+ and Mg2+ ions. The adsorption process uses sugarcane bagasse activated carbon (SBAC) and the tested water sample is well water in District Jati, Kudus. Synthesis of SBAC was conducted with H3PO4 30% as an activator at an impregnation ratio of 1:5 (w/w) at temperature 700°C. The FTIR result showed that SBAC contains O-H, C-H, C=C, C≡C, and C-O as functional groups. Analysis result with the XRD instrument showed that the microstructure of SBAC that is formed is turbostatic structure and amorphous. Modeling isotherm suitable for SBAC adsorption on Ca2+ ions is Langmuir isotherm where the R2 value is 0.9134 which shows that the adsorption process occurs chemically and monolayer. Modeling isotherm suitable for SBAC adsorption on Mg2+ ions is Elovich isotherm where the R2 value is 0.8638 which means that the adsorption process is multilayer and adsorption in non-ideal conditions. Modeling kinetics suitable for SBAC adsorption on Ca2+ and Mg2+ ions is Pseudo Orde 2 where the R2 value is 0.9395 and 0.7274. Percent efficiency value of sugarcane activated carbon adsorption of Ca2+ dan Mg2+ ions on District Jati, Kudus well water is 14.44% and 8.94% and 40 minutes stirring time.

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The influence of ozonation on the activated carbon adsorption of phenol and humic acid

Polish Journal of Chemical Technology ◽

10.2478/v10026-007-0101-0 ◽

2007 ◽

Vol 9 (4) ◽

pp. 107-110 ◽

Cited By ~ 1

Author(s):

Bożena Seredyńska-Sobecka ◽

Maria Tomaszewska

Keyword(s):

Activated Carbon ◽

Humic Acid ◽

Oxygen Demand ◽

Freundlich Isotherm ◽

Model Solution ◽

Activated Carbon Adsorption ◽

Phenol Adsorption ◽

Isotherm Equation ◽

Carbon Adsorption

The influence of ozonation on the activated carbon adsorption of phenol and humic acid To study the influence of ozonation on the activated carbon adsorption, a model solution containing approximately 8 mg/dm3 of humic acid and approximately 1 mg/dm3 of phenol has been ozonated, and then adsorption kintetics and adsorption isotherm experiments have been performed. The applied ozone doses ranged from 1 to 3 mg O3/dm3, and a contact time was 1 min. In the adsorption experiments, the commercial activated carbon CWZ-30 (Gryfskand Sp. z o.o., Hajnówka, Poland) has been used. Phenol adsorption under equilibrium conditions was determined by the Freundlich isotherm equation, and the modified Freudlich isotherm equation has been employed for the determination of humic acid equilibrium adsorption. The applied oxidation conditions resulted in color, chemical oxygen demand (COD), total organic carbon (TOC) and UV254 absorbance removal, by 4 - 13%, 3 - 6%, 3 - 7%, respectively. After ozonation, phenol concentration decreased by 6 - 23%. These changes in the model solution did not affect the humic acid adsorption, however, they deteriorated phenol adsorption.

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Fast Assessment of Toxicants Adsorption on Activated Carbon Using a Luminous Bacteria Bioassay

Water Science & Technology ◽

10.2166/wst.1993.0541 ◽

1993 ◽

Vol 27 (7-8) ◽

pp. 113-120 ◽

Cited By ~ 5

Author(s):

Asher Brenner ◽

Shimshon Belkin ◽

Shimon Ulitzur ◽

Aharon Abeliovich

Keyword(s):

Activated Carbon ◽

Direct Determination ◽

Industrial Wastes ◽

Batch Adsorption ◽

Activated Carbon Adsorption ◽

Freundlich Model ◽

Bacterial Bioluminescence ◽

Carbon Adsorption ◽

Luminous Bacteria

A new approach for the evaluation of activated carbon adsorption characteristics in the treatment of water contaminated by toxic organic compounds is presented. It is based on direct determination of the toxicity in the treated water, as opposed to actual chemical analysis of their constituents. The MicrotoxR bioassay, based upon measurement of bacterial bioluminescence, was utilized for this purpose. The suitability of this approach was judged by applying values of residual toxicities, obtained during batch adsorption experiments with mixtures of pure chemicals and industrial wastes, to traditional mathematical models. The Freundlich model was found to describe accurately adsorption isotherms derived from balances of residual toxicities, as well as from residual concentrations of specific chemicals. This approach allows a fast, convenient assessment of selective toxicant adsorption, alleviating the need for complex analytical methods.

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An Efficient Method for Decoloration of Inulin from Jerusalem Artichoke by Macroporous Resin

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.789.92 ◽

2018 ◽

Vol 789 ◽

pp. 92-97

Author(s):

Hong Yun Zhang ◽

Li Na Yang ◽

Dan Shi Zhu ◽

He Liu

Keyword(s):

Activated Carbon ◽

Large Scale ◽

Jerusalem Artichoke ◽

Scale Production ◽

Activated Carbon Adsorption ◽

Adsorption Method ◽

Carbon Adsorption ◽

Large Scale Production ◽

Decoloration Rate ◽

Better Than

The decoloration method for Inulin from Jerusalem artichoke with activated carbon andmacroporous resin was investigated in this manuscript. Six resins (D113, D301, 001×7, 201×7,DA201-C and activated carbon) with same diameter were studied through static experiments.Meanwhile, the decoloration duration and resin dosage were also determined. Macroporous resinadsorption method was better than the traditional activated carbon adsorption method. The resultsalso suggested that the polar and ionogenic properties significantly affected the decoloration rate. The001×7-201×7 type resin which are strongly polar resin offered the better decolorizing effect. Most ofpigment impurities were successfully removed from inulin solutions with 1:10 resin dosage and 40min decoloration process. Moreover, the decoloration rate and inulin loss rate were 82.29% and 12.67%respectively. This study would provide a potential approach for large-scale production of inulin forits wide applications in dietary supplements.

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Preconcentration and determination of naphthalene in air and water using activated carbon adsorption, carbon disulfide extraction and gas chromatography

Microchimica Acta ◽

10.1007/bf01243141 ◽

1994 ◽

Vol 113 (1-2) ◽

pp. 91-99 ◽

Cited By ~ 2

Author(s):

Fusheng Sun

Keyword(s):

Gas Chromatography ◽

Activated Carbon ◽

Carbon Disulfide ◽

Activated Carbon Adsorption ◽

Carbon Adsorption

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Treatment of Radon Rich Bottled Water by Granular Activated Carbon Adsorption Method

Open Journal of Biophysics ◽

10.4236/ojbiphy.2014.41002 ◽

2014 ◽

Vol 04 (01) ◽

pp. 7-12 ◽

Cited By ~ 1

Author(s):

Saddig D. Jastaniah ◽

Bassam Z. Shakhreet ◽

Hanan Y. Abbas ◽

Awad M. Elkhadir ◽

Saeed M. Bafaraj

Keyword(s):

Activated Carbon ◽

Granular Activated Carbon ◽

Bottled Water ◽

Activated Carbon Adsorption ◽

Adsorption Method ◽

Carbon Adsorption

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Treatment of Dye Wastewater from Batik Industry by Coconut Shell Activated Carbon Adsorption

Fullerene Journal of Chemistry ◽

10.37033/fjc.v6i1.213 ◽

2021 ◽

Vol 6 (1) ◽

pp. 7

Author(s):

Aulia Qisti ◽

Yudhi Utomo ◽

Deni Ainur Rokhim

Keyword(s):

Activated Carbon ◽

Activated Charcoal ◽

Chemical Activation ◽

Liquid Waste ◽

Coconut Shell ◽

Synthetic Dyes ◽

Activated Carbon Adsorption ◽

Adsorption Method ◽

Carbon Adsorption ◽

Coconut Shell Activated Carbon

Batik is a characteristic Indonesian textile product. The color of batik is one component that affects the quality of batik. Various types of batik dyes, one of which is remazol dyes. Remazol dyes are synthetic dyes that have strong chemical bonds. This is what underlies the process of production of the household batik industry in the village of Purwosekar, District of Tajinan, Malang Regency, with remazol coloring will produce liquid waste that is difficult to be deciphered naturally. This study aims to provide a water treatment solution using the coconut shell activated carbon adsorption method with chemical activation and the ability to adsorb remazol dyes. Adsorption experiments were carried out in batches with a mesh size of 8 with coconut shell carbon activated with 1 M HCl solution for 24 hours. The absorption of remazol dyes by coconut shell activated charcoal is carried out with a stirring speed variation for 60 minutes and the mass of activated charcoal to find the optimum adsorption conditions. Stirring speed variations are 30 rpm, 60 rpm, and 90 rpm, resulting in the highest efficiency at a speed of 90 rpm. While the variations in mass are 200 grams and 300 grams, the highest efficiency is obtained with a mass of 300 grams. Thus, the efficiency of the coconut shell activated carbon is proportional to the stirring speed and mass of the coconut shell activated carbon used

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Treatment of High-Strength, Complex and Toxic Chemical Wastewater: End-of Pipe “Best Available Technology” vs. an In-Plant Control Program

Water Science & Technology ◽

10.2166/wst.1994.0414 ◽

1994 ◽

Vol 29 (8) ◽

pp. 221-233

Author(s):

Shimshon Belkin ◽

Asher Brenner ◽

Alon Lebel ◽

Aharon Abeliovich

Keyword(s):

Activated Carbon ◽

Control Program ◽

High Strength ◽

Activated Carbon Adsorption ◽

Acceptable Solution ◽

Conventional Activated Sludge ◽

Carbon Adsorption ◽

Individual Source ◽

Best Available Technology ◽

Available Technology

A case study is presented, in which two approaches to the treatment of complex chemical wastewater are experimentally compared: an end-of-pipe “best available technology” option and an in-plant source segregation program. Both options proved to be feasible. Application of the powdered activated carbon treatment (PACT™) process for the combined end-of-pipe stream yielded up to 93% reduction of dissolved organic carbon, with complete toxicity elimination. In order to examine the potential for applying a conventional activated sludge process, a simplified laboratory screening procedure was devised, aimed at establishing baseline data of removability potential, defined either by biodegradation, activated carbon adsorption or volatilization. Using this procedure, the major source of the non-biodegradable fraction in the combined park's wastewater was traced to a single factory, from which twelve individual source streams were screened. The results allowed the division of the tested sources into three groups: degradable, volatile, and problematic. A modified wastewater segregation and treatment program was accordingly proposed, which should allow an efficient and environmentally acceptable solution. This program is presently at its final testing stages, at the conclusion of which a full comparison between the two approaches will be carried out.

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