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Table 2  Best-fitting isotherm models applied in the bioadsorption of salinity-causing ions

From: Bioadsorbents for the removal of salt ions from saline water: a comprehensive review

Isotherm

Linear form

Bioadsorbent

Reference

Langmuir model

\(\frac{Ce}{{q}_{e}}=\frac{1}{{q}_{m}}Ce+\frac{1}{{k}_{L}{q}_{m}}\)  

E. crassipes

[38]

Parthenium grass

[35]

SCB and BP

[44]

Cynodon dactylon based activated carbon

[31]

Freundlich model

\(\mathit{log}q=\mathit{log}{k}_{f}+\frac{1}{n}\mathit{log}{C}_{e}\)  

Neem (Azadirachta indica) and Kikar (Acacia arabica) leaves

[52]

Activated coconut coir

[19]

Amorphophallus campanulatus (Elephant foot yam)

[61]

Coconut Shell Activated carbon

[53]

Phragmites australis (Reed)

[51]