Feed water pretreatment in RO systems: unit processes in the middle east

“…RO is one of the techniques capable of removing a variety of species dissolved in water. 84 The RO process stands out from other solute separation techniques and is a technique widely used in the process of desalination of sea water. 85 RO is responsible for more than 20% of the desalination capacity of the world.…”

Section: Other Treatment Techniques For Chromium Recoverymentioning

confidence: 99%

CHAPTER 16. Chromium in Tannery Wastewater

Gutterres¹,

Mella²

2014

Heavy Metals in Water

View full text Add to dashboard Cite

The tanning process in Brazil, and worldwide, is of great economic importance. Brazil has the second largest herd, representing approximately 210 million heads of cattle, and has the largest marketable herd in the world. The country is also the second largest producer and exporter of leather and aims at excellence with investments, qualification and technology. 1 The global leather industry is giving increasing attention and making efforts to treat liquid effluents and provide proper disposal for the sludge and residues generated in the processes.There is great concern regarding the level of treatment and the final destination of the effluents and about what will be the consequences for the environment with regards to the quality of the receiving waters. Considering these aspects, studies, criteria and projects relating to the treatment and disposal of the effluents must proceed with special care to ensure adequate decontamination of the effluents, and, equally, the maintenance and improvement of the uses and of the quality of the receiving bodies. 2 Tanning with chromium salts is the most widely employed method; usually chromium used in leather processing is in the form of basic chromium sulfate (CrOHSO 4 ) and is analysed in the form of chromium oxide.Heavy Metals in Water: Presence, Removal and Safety Edited by Sanjay K. Sharma

show abstract

“…Most of it is polluted due to the discharge of heavy metals like Co, Pb, Cr, Zn, Cd, Cu, Hg, As, Al and Ni, from various industrial units [1,2]; Pb(II) is one of the most toxicmetal ion causing serious health issues related to liver damage, nervous system, kidneys, genetic disorder, neurological activity and also causes high hypertension [3,4]. Among the conventional methods -chemical precipitation [5], reverse osmosis [6],ion exchange [7],coagulation [8], electrodialysis [9], ultrafiltration [10], were studied earlier, Adsorption is one of the best method for removal of heavy metals from synthetic and real systems.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of Pb(II) Ions onto Cocos Nucifera L.: Application of Two-Parameter Isotherm Models

2017

IJSR

View full text Add to dashboard Cite

Feed water pretreatment in RO systems: unit processes in the middle east

Cited by 56 publications

References 2 publications

Remoção De Cromo De Banhos Residuais De Curtimento Através De Precipitação Química E Eletrocoagulação

Remoção De Cromo De Banhos Residuais De Curtimento Através De Precipitação Química E Eletrocoagulação

CHAPTER 16. Chromium in Tannery Wastewater

Biosorption of Pb(II) Ions onto Cocos Nucifera L.: Application of Two-Parameter Isotherm Models

Contact Info

Product

Resources

About