Simultaneous removal of arsenic and fluoride from synthetic solution through continuous electrocoagulation: Operating cost and sludge utilization

2019 ◽  
Vol 7 (1) ◽  
pp. 102829 ◽  
Author(s):  
Lokendra Singh Thakur ◽  
Hemant Goyal ◽  
Prasenjit Mondal
RSC Advances ◽  
2015 ◽  
Vol 5 (11) ◽  
pp. 8190-8193 ◽  
Author(s):  
Feng Xiao ◽  
Liping Fang ◽  
Wentao Li ◽  
Dongsheng Wang

Aluminum magnesium oxide nanocomposites were prepared using a one-step microwave assisted solvothermal method, and showed high adsorption capacities for the removal of both As(v) and Pb(ii) ions in water.


2013 ◽  
Vol 91 (5) ◽  
pp. 405-414 ◽  
Author(s):  
Shreemoyee Bordoloi ◽  
Manoranjan Nath ◽  
Robin K. Dutta

2019 ◽  
Vol 35 (1) ◽  
pp. 85-97 ◽  
Author(s):  
Shruthi Murthy ◽  
Mahesh Shivaswamy ◽  
Sahana Mahesh ◽  
Srikantha Hanumanthappa

Aluminum(Al) and Iron(Fe) electrodes were used forsimultaneous removal of arsenite and fluoride from groundwater using novel electrochemical coagulation (ECC)with special focus on electrode placing positions of Fe and Al in a batch electrochemical reactor (BECR).A series of experiments were carried out to observe the influence of electrode placing positions on removal. Of the many electrode combination, Al1-Al2-Al3-Al4, Fe1-Fe2-Fe3-Fe4, Al1-Al2-Fe3-Al4 and Fe1-Fe2-Al3-Fe4 are discussed in this paper for pre-optimized operating conditions: 4 plate electrodes, As (III)o: 1.6 mg/L, Fo‾: 12 mg/L, Al3+: 0 mg/L, Feo: 0.061 mg/L, inter-electrode spacing: 5mm, applied cell voltage:16V, SA/V ratio: 40 m2/m3 and electrolysis time of 45 min. For the said electrode combinations,the maximum simultaneous removal of both arsenite and fluoride was obtained for Fe1-Fe2-Al3-Fe4 with 97% arsenite removal from its initial value of 1.6 mg/L; and 100% fluoride removal from its initial value of 12 mg/L within 45 min of ET. Energy consumption was 2.01 KWh/m3 with operating cost of 2.90 Rs./m3.


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