Electrochemical treatment of evaporated residue of reverse osmosis concentrate generated from the leather industry

RSC Advances ◽  
2014 ◽  
Vol 4 (97) ◽  
pp. 54614-54624
Author(s):  
R. Boopathy ◽  
A. B. Mandal ◽  
G. Sekaran
Keyword(s):  
Sodium Chloride ◽  
Reverse Osmosis ◽  
Organic Pollutants ◽  
Calcium Sulphate ◽  
Electrochemical Treatment ◽  
Leather Industry

Proposed scheme for the separation of sodium chloride, calcium sulphate and removal of organic pollutants from ER.

VIII.—The Stability of Suspensions. I. The Rate of Sedimentation of Kaolin Suspensions by Salts at Varying Hydrogen Ion Concentrations

1926 ◽  
Vol 45 (1) ◽  
pp. 59-70 ◽  
Author(s):  
William Ogilvy Kermack ◽  
William Turner Horace Williamson
Keyword(s):  
Sodium Chloride ◽  
Acid Solution ◽  
Alkaline Solution ◽  
Calcium Sulphate ◽  
Sodium Sulphate ◽  
Aluminium Chloride ◽  
Monocalcium Phosphate ◽  
Sodium Hydrogen Phosphate ◽  
Rate Of Sedimentation ◽  
The Stability

Summary1. The rates of sedimentation of a kaolin suspension in presence of varying concentrations of a salt (sodium chloride, potassium chloride, sodium sulphate, di-sodium hydrogen phosphate, sodium citrate, calcium chloride, calcium sulphate, monocalcium phosphate, “superphosphate”, aluminium chloride, ferric chloride or lanthanum chloride) have been compared at various pH values. Abnormal results are obtained with sodium chloride, monocalcium phosphate, aluminium, ferric and lanthanum chlorides.2. Sodium chloride increases the rate of sedimentation in alkaline solution, but actually inhibits it in acid solution.3. In concentrations of monocalcium phosphate above 0·06 per cent, abnormal sedimentation in alkaline solution takes place, with the result that it is much more complete than at the corresponding concentrations in acid solution.4. In acid solution the tervalent ions, aluminium, ferric and lanthanum have little effect, but a zone of very marked flocculation occurs at pH 7–8. This zone separates a region within which the unsedimented particles are negatively charged from a region within which they are positively charged.

scholarly journals Electrochemical treatment of reverse osmosis concentrate on boron-doped electrodes in undivided and divided cell configurations

2014 ◽  
Vol 279 ◽  
pp. 111-116 ◽  
Author(s):  
Arseto Y. Bagastyo ◽  
Damien J. Batstone ◽  
Ina Kristiana ◽  
Beate I. Escher ◽  
Cynthia Joll ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Electrochemical Treatment ◽  
Boron Doped ◽  
Divided Cell

Electrochemical Treatment of Reverse Osmosis Concentrates

2014 ◽  
pp. 644-651 ◽  
Author(s):  
Jelena Radjenovic ◽  
Arseto Bagastyo ◽  
Damien Batstone ◽  
Jurg Keller
Keyword(s):  
Reverse Osmosis ◽  
Electrochemical Treatment ◽  
Reverse Osmosis Concentrates
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