Phragmites karka as a Biosorbent for the Removal of Mercury Metal Ions from Aqueous Solution: Effect of Modification

Table 4

A comparison of mercury metal ions adsorbed by different biosorbents.

Serial number	Type of biosorbent	Amount of mercury ions absorbed	Reference
1	Spent rootlets	0.248 mmol/g	[48]
2	Saw dust	0.042 mmol/g	[49]
3	Bamboo pulp	0.046 mmol/g	[49]
4	Jute	0.038 mmol/g	[49]
5	Ground-up tree fern	0.132 mmol/g	[50]
6	Lemma minor	0.138 mmol/g	[16]
7	Garlic powder	0.650 mmol/g	[51]
8	Rasped pith sago residue	0.001 mmol/g	[52]
9	Natural P. karka	0.0089 mmol/g	Present study
10	Treated P. karka	0.113 mmol/g	Present study