An empirical model for kinetics of boron removal from boron-containing wastewaters by ion exchange in a batch reactor

Desalination ◽  
2004 ◽  
Vol 160 (2) ◽  
pp. 159-166 ◽  
Author(s):  
R Boncukcuoglu
Keyword(s):  
Ion Exchange ◽  
Empirical Model ◽  
Batch Reactor ◽  
Boron Removal ◽  
Kinetics Of

An empirical model for kinetics of boron removal from boroncontaining wastewaters by the electrocoagulation method in a batch reactor

Desalination ◽  
2008 ◽  
Vol 230 (1-3) ◽  
pp. 288-297 ◽  
Author(s):  
A. Erdem Yılmaz ◽  
Recep Boncukcuoğlu ◽  
M. Muhtar Kocaker¥m ◽  
Erdem Kocadağistan
Keyword(s):  
Empirical Model ◽  
Batch Reactor ◽  
Boron Removal ◽  
Kinetics Of

scholarly journals Evaluation of a pilot plant for removal of nitrate from groundwater using ion exchange and recycled regenerant

2017 ◽  
Vol 12 (3) ◽  
pp. 541-548
Author(s):  
Sheldon Tarre ◽  
Michael Beliavski ◽  
Michal Green
Keyword(s):  
Ion Exchange ◽  
Batch Reactor ◽  
Nitrate Removal ◽  
Bacterial Count ◽  
Water Volume ◽  
Foam Fractionation ◽  
Well Water ◽  
Combined System ◽  
Blow Down ◽  
Product Water

A combined system of ion exchange (IX) and advanced biophysical treatment of a recirculating regenerant was tested for nitrate removal from groundwater with minimal brine discharge and chloride addition to the product water. Using well water containing 21.5 ± 1.4 mg NO3−-N/L, optimal IX operation was found at a service cycle of 500 bed volumes (BV). Product water nitrate concentrations (7.4 ± 1.4 mg/L as N) met regulations while minimizing both Cl− addition to the treated water (1.03 meq Cl− added per meq NO3−-N removed) and waste brine production (0.2% of the water volume treated). The total organic carbon in the product water was slightly higher (1.5 ± 0.5 vs. 1.3 ± 0.4 mg/L) than the well water and before disinfection the bacterial count was 10–700 cfu/ml. Brine used to regenerate the IX columns was treated first in a sequential batch reactor (SBR) for biological denitrification followed by ozonation for polishing. The SBR was operated at 8 hour cycles and achieved complete nitrate removal. An ozone dose of 3 to 5 mg/L brine allowed for efficient recycling of the denitrified regenerant by removing suspended solids by foam fractionation. In spite of the low brine blow-down, DOC in the recycled regenerant brine after a year of continuous operation was maintained at relatively low levels of 61.0 ± 11.6 mg/L.

Kinetics of Ion-Exchange Reactions in Hybrid Organic–Inorganic Perovskite Thin Films Studied by In Situ Real-Time X-ray Scattering

2018 ◽  
Vol 9 (23) ◽  
pp. 6750-6754 ◽  
Author(s):  
Alessandro Greco ◽  
Alexander Hinderhofer ◽  
M. Ibrahim Dar ◽  
Neha Arora ◽  
Jan Hagenlocher ◽  
...  
Keyword(s):  
Thin Films ◽  
Ion Exchange ◽  
Real Time ◽  
Exchange Reactions ◽  
Inorganic Perovskite ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Kinetics Of Ion Exchange

Ion exchange kinetics of magnetic alginate ferrogel beads produced by external gelation

2014 ◽  
Vol 111 ◽  
pp. 198-205 ◽  
Author(s):  
Vânea Ferreira Torres Teixeira ◽  
Nádia Rosa Pereira ◽  
Walter Ruggeri Waldman ◽  
Ana Luiza Cassiano Dias Ávila ◽  
Victor Haber Pérez ◽  
...  
Keyword(s):  
Ion Exchange ◽  
External Gelation ◽  
Ion Exchange Kinetics ◽  
Exchange Kinetics ◽  
Kinetics Of
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