Preparing Modified Activated Carbon from Cassia Fistula Seed with HNO3 for Zinc Removal in Wastewater

2021 ◽  
Vol 885 ◽  
pp. 85-93
Author(s):  
Dao Minh Trung ◽  
Tran Le Luu
Keyword(s):  
Heavy Metal ◽  
Activated Carbon ◽  
Processing Time ◽  
Carbon Materials ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Water Environment ◽  
Cassia Fistula ◽  
Modified Activated Carbon ◽  
Zinc Removal

The economic’s development also bring urbanization and industrialization in many countries. However, many pollutants are also discharged into the environment, especially heavy metals (Zinc) seriously affects people's life and health as well as the water environment. This study reports on the preparation of activated carbon materials modified with HNO3 from Cassia Fistula seed for heavy metal removal. The results showed that zinc removal efficiencies were 65.06%; 72.19%; 75.64%; 78.57% corresponds to concentrations of 50, 30, 20, 10 ppm at optimal survey conditions pH 5, dosage of 0.3 g/50ml and 60 minutes processing time. The research results show that the activated carbon modified with HNO3 from Cassia Fistula seed is a promising absorption material for heavy metal removal in wastewater.

scholarly journals Adsorption of Hexavalent Chromium and Divalent Lead Ions on the Nitrogen-Enriched Chitosan-Based Activated Carbon

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1907
Author(s):  
Fatma Hussain Emamy ◽  
Ali Bumajdad ◽  
Jerzy P. Lukaszewicz
Keyword(s):  
Heavy Metal ◽  
Activated Carbon ◽  
Metal Ions ◽  
Metal Removal ◽  
High Surface ◽  
Heavy Metal Removal ◽  
High Surface Area ◽  
Kinetics Of Adsorption ◽  
Removal Of Heavy Metals ◽  
Pseudo Second Order

Optimizing the physicochemical properties of the chitosan-based activated carbon (Ch-ACs) can greatly enhance its performance toward heavy metal removal from contaminated water. Herein, Ch was converted into a high surface area (1556 m2/g) and porous (0.69 cm3/g) ACs with large content of nitrogen (~16 wt%) using K2CO3 activator and urea as nitrogen-enrichment agents. The prepared Ch-ACs were tested for the removal of Cr(VI) and Pb(II) at different pH, initial metal ions concentration, time, activated carbon dosage, and temperature. For Cr(VI), the best removal was at pH = 2, while for Pb(II) the best pH for its removal was in the range of 4–6. At 25 °C, the Temkin model gives the best fit for the adsorption of Cr(VI), while the Langmuir model was found to be better for Pb(II) ions. The kinetics of adsorption of both heavy metal ions were found to be well-fitted by a pseudo-second-order model. The findings show that the efficiency and the green properties (availability, recyclability, and cost effectiveness) of the developed adsorbent made it a good candidate for wastewaters treatment. As preliminary work, the prepared sorbent was also tested regarding the removal of heavy metals and other contaminations from real wastewater and the obtained results were found to be promising.

scholarly journals Electrochemical heavy metal removal from water using PVC waste-derived N, S co-doped carbon materials

RSC Advances ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 4064-4070
Author(s):  
Yingna Chang ◽  
Qidong Dang ◽  
Imran Samo ◽  
Yaping Li ◽  
Xuejin Li ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Carbon Materials ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Metal Pollutants ◽  
Plastic Wastes ◽  
Heavy Metal Pollutants ◽  
Co Doped

N, S-codoped carbon materials derived from PVC plastic wastes were used for electrochemically removing heavy metal pollutants from water.

Evaluation of an activated carbon from olive stones used as an adsorbent for heavy metal removal from aqueous phases

2015 ◽  
Vol 18 (1) ◽  
pp. 88-99 ◽  
Author(s):  
Thouraya Bohli ◽  
Abdelmottaleb Ouederni ◽  
Nuria Fiol ◽  
Isabel Villaescusa
Keyword(s):  
Heavy Metal ◽  
Activated Carbon ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Olive Stones

Overview of activated carbon derived from biomass for heavy metal removal

2020 ◽  
Author(s):  
Z. Nur Aimi Nadhirah ◽  
M. Rabiatul Manisah ◽  
Norizah Abd. Karim ◽  
Faizul Che Pa
Keyword(s):  
Heavy Metal ◽  
Activated Carbon ◽  
Metal Removal ◽  
Heavy Metal Removal

scholarly journals Removal of Pb(II), Fe(II) and Zn(II) using activated carbon produced from foxtail palm fruit chemically activated by KOH and H3PO4.

2019 ◽  
Vol 7 (1) ◽  
pp. 19-22
Author(s):  
Nur Sabiha Sairan ◽  
Noor Syuhadah Subki ◽  
Nik Raihan Nik Yusoff
Keyword(s):  
Heavy Metal ◽  
Activated Carbon ◽  
Phosphoric Acid ◽  
Potassium Hydroxide ◽  
Adsorption Process ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Sorption Process ◽  
Palm Fruit ◽  
Main Factor

The increasing rate of urbanization and continuous developments are the main factor which led to heavy metals contamination into the environment especially in the water bodies. However, the contamination of heavy metal can be treated using adsorption process using activated carbon. Thus, this study was based on using powdered activated carbon, which prepared from foxtail palm fruit and chemically activated using potassium hydroxide and phosphoric acid. The main parameters such as effect of chemical activating agent, effect of initial concentration of heavy metal and effect of sorbent dosage that influenced the sorption process were studied. From the result, activated carbon that was chemically activated by phosphoric acid shown the best removal compared to activated carbon that was chemically activated by potassium hydroxide. The percentage removal of Pb(II), Fe(II) and Zn(II) were 95.8%, 99.9% and 22.8% respectively using 0.5 g of activate carbon. The result indicates that the adsorption process using activated carbon that produced from plant can be applied for heavy metal removal from aqueous solution.

Electrochemical Properties and Electrode Reversibility Studies of Palm Shell Activated Carbon for Heavy Metal Removal

2017 ◽  
Vol 249 ◽  
pp. 96-103 ◽  
Author(s):  
Hawaiah Imam Maarof ◽  
Mohammed A. Ajeel ◽  
Wan Mohd Ashri Wan Daud ◽  
Mohamed Kheireddine Aroua
Keyword(s):  
Heavy Metal ◽  
Activated Carbon ◽  
Electrochemical Properties ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Palm Shell
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