scholarly journals Pemanfaatan Karbon Baggase Teraktivasi Untuk Menurunkan Kadar Logam Tembaga Pada Limbah Kerajinan Perak Di Lombok Tengah

2019 ◽  
Vol 6 (1) ◽  
pp. 65
Author(s):  
Dahlia Rosma Indah ◽  
Safnowandi Safnowandi
Keyword(s):  
Carbon Dioxide ◽  
Activated Carbon ◽  
Contact Time ◽  
Metal Content ◽  
Heating Temperature ◽  
Copper Metal ◽  
Batch System ◽  
Surrounding Environment ◽  
Ferrous Metals ◽  
Metal Levels

Copper metal levels in silver craft waste can cause health problems in humansand pollute the surrounding environment. One method of processing wastewateris the adsorption technique using activated carbon dioxide. The first step is tofirst determine the copper metal content in silver handicraft waste in UnggaVillage, Central Lombok. Furthermore, the waste water is contacted withactivated carbon. The production of activated bagasse carbon consists of threestages, namely first dehydration by burning bagasse until it turns into carbon,second carbonation which is heating temperature of 500ºC, carbon yields of 100-200 mesh and third, activation by immersing 50 grams of carbon in 500 mL 15%NaOH during 12 hours. After that the carbon is dried at 110ºC and finally heatedat 500ºC for 1 hour. The bagasse carbon that has been made is put into 25 mL ofwaste water sample with a mass of 2 grams of adsorbent. The sample is thenstirred at various contact times of 30, 60, 90, 120 and 150 minutes at a speed of180 rpm using a batch system. The optimum contact time and concentration areused to calculate the efficiency of decreasing copper metal content by calculatingthe difference in copper metal content before adsorption and after adsorptionusing activated carbon dioxide. The concentration of all Cu (II) metals wasanalyzed using Atomic Absorption Spectrophotometer (AAS). From the researchit was found that the copper metal content in the sample was 14.5710 ppm. Theoptimum contact time for copper metal adsorption is at 120 minutes contact timewhich results in optimum adsorption efficiency in ferrous metals, namely84.88%.

scholarly journals Karakterisasi Karbon Baggase Teraktivasi dan Aplikasinya untuk Adsorpsi Logam Tembaga

2020 ◽  
Vol 7 (2) ◽  
pp. 46
Author(s):  
Dahlia Rosma Indah ◽  
Safnowandi Safnowandi
Keyword(s):  
Activated Carbon ◽  
Nitric Acid ◽  
Phosphoric Acid ◽  
Contact Time ◽  
Metal Content ◽  
Copper Metal ◽  
Waste Water Sample ◽  
Time Variations ◽  
Three Stages ◽  
The Difference

Bagasse is waste produced from the process of milking or extracting sugarcane stems. Baggase can be optimized in terms of use value and its function as an alternative technology, namely as an active carbon manufacturing material that can be used as a copper (Cu) adsorbent. This study discusses the functional baggase activated carbon group of phosphoric acid and nitric acid using Fourier Transform Infra Red (FTIR) and its application as a copper metal adsorbent in silver craft waste in Ungga Village, Praya, Central Lombok. The production of activated bagasse carbon consists of three stages, namely first dehydration by burning bagasse until it turns into carbon, the second carbonation is heating at 500ºC, carbon results are 100-200 mesh and third, activation by soaking 50 grams of carbon in 500 mL of 20% phosphoric acid and 20% nitric acid for 12 hours. After that the carbon is dried at 110ºC and finally heated at 500ºC for 1 hour. The bagasse carbon that has been made is put into 25 mL of waste water sample with a mass of 2 grams of adsorbent. Samples were then stirred at 30, 60, 90, 120 and 150 minutes contact time variations at a speed of 180 rpm using a batch system. The optimum contact time that is used to calculate the efficiency of copper metal content reduction is by calculating the difference in the metal content of copper metal before it is adsorbed and after it is adsorbed using activated carbon baggase. Concentrations of all copper metals were analyzed using Atomic Absorption Spectrophotometer (AAS). Identification using FTIR spectrophotometer shows that carbon baggase in this study contains functional groups C = O, C = C, C-C, N = O, C = N, C-OH, CH2 and C-H. From the research it was found that the copper metal content in the sample was 14.5710 ppm. The optimum contact time on copper metal adsorption is at 120 minutes contact time which results in optimum adsorption efficiency on copper metal that is 84.88%. Activated carbon baggase is an effective adsorbent to reduce levels of copper metal in silver craft waste.

scholarly journals Efektivitas Komposit Material Overburden Batubara, Zeolit, dan Arang Aktif Tempurung Kelapa Sebagai Adsorben Besi dalam Air Asam Tambang

2021 ◽  
Vol 1 (1) ◽  
pp. 28-35
Author(s):  
Mycelia Paradise ◽  
Edy Nursanto ◽  
Nurkhamim Nurkhamim
Keyword(s):  
Activated Carbon ◽  
Acid Mine Drainage ◽  
Surface Area ◽  
Contact Time ◽  
Mine Drainage ◽  
Coconut Shell ◽  
Hot Plate ◽  
Iron Metal ◽  
Batch System ◽  
Shell Composite

Abstrak: Penelitian ini mempelajari penyerapan Fe dari air asam tambang yang berasal dari lokasi penambangan batubara. Adsorben yang digunakan dalam penelitian ini yaitu kombinasi antara claystone, zeolit, dan arang aktif tempurung kelapa. Adsorben tersebut harus diaktivasi terlebih dahulu untuk membersihkan pengotor di permukaannya sehingga luas permukaannya meningkat. Aktivasi claystone dilakukan dengan 3M NaOH, zeolit dengan 3M HCl, dan arang tempurung kelapa dengan 4M HCl. Komposit dibuat dengan mencampurkan ketiga adsorben dengan  perbandingan (Claystone[C]: Zeolit[Z]: Arang aktif[A]) = 25:25:50. Hasil uji luas permukaan menunjukkan bahwa komposit memiliki luas permukaan 62,44 m2/g. Adsorpsi dilakukan dengan sistem batch menggunakan alat hot plate stirer pada variasi waktu kontak 30, 60, 90, 120, dan 150 menit. Berdasarkan hasil uji adsorpsi,  7,5 gram komposit  mampu menurunkan konsentrasi Fe dengan efektivitas 99,61%  dan kapasitas adsorpsi 0,432 mg/g pada waktu kontak 30 menit.  Kata Kunci: adsorpsi, komposit, efektivitas, kapasitas Abstract: This research studied adsorption iron (Fe) from acid mine drainage in coal mining. Adsorbent used in this research is the combination of activated claystone, activated zeolite, and ativated carbon from coconut shell. The adsorbents need to be activated to remove the impurities from its surface and improved its surface area. Claystone was activated using 3M NaOH, 3M HCl for zeolite, and 4M HCl for coconut shell. Composite was made by mixing claystone, zeolite, and coconut shell with 3 ratio (claystone [C], zeolite [Z], activated carbon [A]) = 25:25:50. The result of surface area analyzer showed that the surface area of composite was 62,44 m2/g. Adsorption with batch system was carried out using hot plate stirer on 30,60, 90, 120, and 150 minutes of contact time. Adsorption result showed that 7,5 gram of composite succeded decreasing iron metal concentration with 99,61%  effectiveness and 0,432 mg/g adsorption capacity on 30 minutes of contact time. Keywords: adsorption, composite, efectiveness, capacity

Adsorption of Methyl Violet Dye from Aqueous Solutions by Activated Carbon Produced from Tamarind Seeds

2014 ◽  
Vol 911 ◽  
pp. 326-330 ◽  
Author(s):  
Piaw Phatai ◽  
Jutharatana Klinkaewnarong ◽  
Surachai Yaiyen
Keyword(s):  
Activated Carbon ◽  
Contact Time ◽  
Copper Ions ◽  
Binary Solution ◽  
Methyl Violet ◽  
Solution System ◽  
Solution Ph ◽  
Batch System ◽  
Adsorption Data ◽  
Adsorbent Dose

The present work proposes the adsorption of methyl violet (MV) from two solution systems including single MV and binary MV-Cu2+systems by activated carbon (AC) prepared from tamarind seeds in a batch system. Parameters including contact time, solution pH, adsorbent dose, and initial dye concentration were studied. The morphology of the AC was determined by scanning electron microscopy (SEM). The results showed the maximum adsorption of MV dye onto the AC at a contact time of 60 min, solution pH of 9.0 and adsorbent dose of 0.2 and 0.5 g for the single and binary solution systems, respectively. The presence of copper ions in binary solution system decreased the adsorption efficiency of MV dye onto the AC. The equilibrium adsorption data were analyzed using Langmuir, Freundlich and Temkin isotherms.

scholarly journals Adsorption of Iron (Fe) Heavy Metal in Acid Mine Drainage from Coal Mining

2021 ◽  
Vol 1 (1) ◽  
pp. 500-509
Author(s):  
Edy Nursanto ◽  
Mycelia Pradise
Keyword(s):  
Activated Carbon ◽  
Acid Mine Drainage ◽  
Surface Area ◽  
Contact Time ◽  
Mine Drainage ◽  
Quality Standard ◽  
Acid Mine ◽  
Batch System ◽  
Experimental Approaches ◽  
Time Variations

Adsorption is one of effective method to overcome acid mine drainage issue because of its economy and abundant availability of adsorbents. The research aimed to analyze the adsorption effectiveness and capacity of composite as the iron adsorbent in acid mine drainage. Composite consists of claystone from coal overburden, zeolite, and activated carbon from coconut shell. This study used experimental approaches in laboratory. Types of mineral contained in adsorbent materials (claystone, zeolite, and activated carbon) were: kaolinite, mordenite, and cristobalite. Composites were constructed with the following ratios: 50:25:25, 25:25:50, and 25:50:25 (Claystone[C] : Zeolite[Z] : Activated carbon[A]). The composite with a ratio of 25:25:50 had the greatest surface area of 62.44 m2/g, according to the results of the surface area analyzer test. Adsorption was performed in a batch system with a hot plate stirrer and composite mass of 2.5, 5, and 7.5 grams, for contact time variations of 30, 60, 90, 120, and 150 minutes. The adsorption test revealed that the composite was successful in increasing the pH of acid mine drainage to neutral (7.0) and lowering the Fe concentration to meet the quality standard. The best effectiveness of iron lowering was 99,35% with composite mass of 5 grams. However, the 2.5 grams composite mass is more efficient in terms of efficiency because it can lower the Fe concentration to 0.1484 mg/l with only 30 minutes contact time, ensuring that the Fe concentration fulfills the quality standard. The composite with a mass of 2.5 grams has the best adsorption capacity (1,286 mg/g).

Modification of Activated Carbon from Biomass Nypa and Amine Functional Groups as Carbon Dioxide Adsorbent

2017 ◽  
Vol 28 (Suppl. 1) ◽  
pp. 227-240 ◽  
Author(s):  
Nur 'Izzati A. Ghani ◽  
◽  
Nur Yusra Mt Yusuf ◽  
Wan Nor Roslam Wan Isahak ◽  
Mohd Shahbuddin Masdar ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Activated Carbon ◽  
Functional Groups

Porous properties of activated carbon produced from Eucalyptus and Wattle wood by carbon dioxide activation

2006 ◽  
Vol 23 (6) ◽  
pp. 1046-1054 ◽  
Author(s):  
Yuvarat Ngernyen ◽  
Chaiyot Tangsathitkulchai ◽  
Malee Tangsathitkulchai
Keyword(s):  
Carbon Dioxide ◽  
Activated Carbon ◽  
Porous Properties ◽  
Carbon Dioxide Activation

scholarly journals Surface-modified spherical activated carbon materials for pre-combustion carbon dioxide capture

RSC Advances ◽  
2015 ◽  
Vol 5 (42) ◽  
pp. 33681-33690 ◽  
Author(s):  
Nannan Sun ◽  
Chenggong Sun ◽  
Jingjing Liu ◽  
Hao Liu ◽  
Colin E. Snape ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Activated Carbon ◽  
Carbon Materials ◽  
Carbon Dioxide Capture ◽  
Spherical Activated Carbon ◽  
Surface Modified

Carbon beads exhibiting potential in practical pre-combustion CO2 capture were prepared.

Source of Metal Ions on Raw Cotton Fibers and their Influence on Dyeing

2021 ◽  
Vol 8 (2) ◽  
pp. 1-8
Author(s):  
Chanel Angelique Fortier ◽  
Christopher Delhom ◽  
Michael K. Dowd
Keyword(s):  
Metal Ions ◽  
Cotton Fiber ◽  
Metal Content ◽  
Fiber Development ◽  
Cultivar Differences ◽  
Cotton Fibers ◽  
Dye Uptake ◽  
Metal Levels ◽  
Fiber Metal ◽  
Cotton Bolls

This work reports on two debated points related to the metal content of cotton fiber and its influence on processing. The first issue is if the metal levels of raw fibers are naturally deposited during fiber development or if the levels are influenced by weathering and harvesting conditions present after boll opening. This was tested by harvesting bolls just as they were opening and after the opened bolls were allowed to field age. The second issue relates to the importance of metal levels on fiber dyeability. Results indicate that the metal levels of newly-opened cotton were not appreciably different from those of aged cotton bolls and that the fiber metal levels after scouring and bleaching had little correlation with dye uptake. Additionally, some metal levels exceeded those previously reported and the environment appeared to have a stronger influence on fiber Ca and Mg levels than did cultivar differences.

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