Table 2.

Adsorption capacities of CHAp in comparism with others in literature.

Adsorbent	Adsorbent capacity (qe)	References
Commercial activated carbon	31.9	Van et al. [8]
Mussel shells	26.0	Van et al. [8]
bone meal-derived apatite	116.16	Ofudje et al. [9]
calcined oyster shells	29.5	Alidoust et al. [11]
Waste eggshell	23.4	Baláž et al. [12]
modified maize straw	196	Guo et al. [13]
Modified cantaloupe peel	30.4	Tran and Chao [14]
orange peel derived biochar	115	Tran et al. [15]
aragonite shells-derived biosorbent	189	Veneu et al. [16]
waste shells of golden apple snail	81.3	Zhao et al. [17]
Orange peel	128.23	Akinhanmi et al. [18]