scholarly journals Application of Chitosan-Clay Biocomposite Beads for Removal of Heavy Metal and Dye from Industrial Effluent

2020 ◽  
Vol 4 (1) ◽  
pp. 16 ◽  
Author(s):  
Shanta Biswas ◽  
Taslim Ur Rashid ◽  
Tonmoy Debnath ◽  
Papia Haque ◽  
Mohammed Mizanur Rahman
Keyword(s):  
Heavy Metal ◽  
Industrial Wastewater ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Industrial Effluent ◽  
Industrial Effluents ◽  
Tannery Effluent ◽  
Composite Beads ◽  
Standard Models ◽  
Universal Application

In recent years, there has been increasing interest in developing green biocomposite for industrial wastewater treatment. In this study, prawn-shell-derived chitosan (CHT) and kaolinite rich modified clay (MC) were used to fabricate biocomposite beads with different compositions. Prepared composite beads were characterized by FTIR, and XRD, and SEM. The possible application of the beads was evaluated primarily by measuring the adsorption efficiency in standard models of lead (II) and methylene blue (MB) dye solution, and the results show a promising removal efficiency. In addition, the composites were used to remove Cr (VI), Pb (II), and MB from real industrial effluents. From tannery effluent, 50.90% of chromium and 39.50% of lead ions were removed by composites rich in chitosan and 31.50% of MB was removed from textile effluent by a composite rich in clay. Moreover, the composite beads were found to be activated in both acidic and basic media depending on their composition, which gives a scope to their universal application in dye and heavy metal removal from wastewater from various industries.

Comparative study on heavy metal removal from industrial effluents by various separation methods

2011 ◽  
Vol 35 (1-3) ◽  
pp. 242-246 ◽  
Author(s):  
Dóra Németh ◽  
Jalel Labidi ◽  
László Gubicza ◽  
Katalin Bélafi-Bakó
Keyword(s):  
Heavy Metal ◽  
Comparative Study ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Industrial Effluents

scholarly journals BIOSORPTION OF CU(II) IONS FROM INDUSTRIAL EFFLUENTS BY RICE HUSK: EXPERIMENT, STATISTICAL, AND ANN MODELING

2021 ◽  
Vol 29 (4) ◽  
pp. 441-448
Author(s):  
Nirjhar Bar ◽  
Tania Mitra ◽  
Sudip Kumar Das
Keyword(s):  
Heavy Metal ◽  
Adsorption Capacity ◽  
Rice Husk ◽  
Flow Rate ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Industrial Effluents ◽  
Influent Concentration ◽  
Ann Modeling ◽  
Bed Height

Heavy metal removal from wastewater is a significant research area and recommends sustainable development. The heavy metals cause harmful health effects, increase environmental toxicity. Adsorption is a very effective method for heavy metal removal. A fixed bed for Cu(II) removal using rice hush, an agricultural waste, is reported in this paper. The study was carried out to determine the breakthrough curves with varying operating variables like influent concentration (10–30 mg/L), flow rate (10–40 ml/min), and bed height (4–10 cm) at pH 6. The variation of the process variables like influent concentration, flow rate, and bed height were investigated. The experimental data shows that adsorption capacity increases with the rise of influent concentration. The maximum value of adsorption capacity is 10.93 mg/g at a flow rate of 10 ml/min, bed height 4 cm, and influent concentration 30 mg/L. The applicability of the MLR and ANN modeling has also been successfully carried out. ANN has better predictability than MLR. The findings revealed that rice husk could be used to treat copper-containing industrial effluents.

Heavy Metal Removal from Industrial Wastewater Using Fungi: Uptake Mechanism and Biochemical Aspects

2016 ◽  
Vol 142 (9) ◽  
Author(s):  
Manisha Shakya ◽  
Pratibha Sharma ◽  
Syeda Shaima Meryem ◽  
Qaisar Mahmood ◽  
Arun Kumar
Keyword(s):  
Heavy Metal ◽  
Industrial Wastewater ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Uptake Mechanism

scholarly journals A highly efficient polyampholyte hydrogel sorbent based fixed-bed process for heavy metal removal in actual industrial effluent

2016 ◽  
Vol 89 ◽  
pp. 151-160 ◽  
Author(s):  
Guiyin Zhou ◽  
Jinming Luo ◽  
Chengbin Liu ◽  
Lin Chu ◽  
Jianhong Ma ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Fixed Bed ◽  
Industrial Effluent ◽  
Highly Efficient
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