Calcium Pretreated Hevea brasiliensis Sawdust for Copper Removal: Batch and Column Study

Table 3

Comparison of adsorption capacities of CaHBSD with some low-cost adsorbents.

Adsorbent	Adsorption capacity (mg/g)		Ref.
	Batch mode	Column mode
Wheat shell	10.84		[11]
Herbaceous peat	4.84		[12]
Cork biomass	3.00		[13]
Food waste	2.84		[14]
Tea industry waste	8.64		[15]
Peanut hulls	10.17		[16]
Tobacco dust	36		[17]
Modified rice husk	29		[18]
Raw pomegranate peel	1.32		[19]
Newspaper pulp	30		[20]
Jute	4.23		[21]
Cashew nut shell	20		[29]
KOH treated pine cone powder	26.32		[30]
Natural clayey soil	4.41		[31]
Pomegranate peel	1.32		[19]
Pine cone powder	6.80		[32]
Pine cone shell	6.81	8.09	[33]
Coconut shell		7.25	[34]
Chitosan immobilized on bentonite		14.92	[35]
CaHBSD	37.74	34.29	Present study