Adsorption Studies on the Removal of Textile Effluent over Two Natural Eco-Friendly Adsorbents

Table 7

Comparison of the treatment efficiency with literature studies.

Adsorbent	Real rejection	Adsorption (%)	Reference
Clay from the Fouchana region (Tunisia)	Dyeing industry	(i) 97.0% BOD5; (ii) 95.0% COD	[8]
Powder (a-NLP)	Textile effluent	(i) 98.9% BOD5; (ii) 100% COD	[45]
Activated charcoal	Textile effluent	(i) 81.0% BOD5; (ii) 87.6% COD	[46]
(i) Alum; (ii) Activated carbon; (iii) Alum + activated carbon	Textile effluent	92% COD	[47]
Graphene oxide (GO)	Textile effluent	85.0% turbidity; 60.0% color in 30 min	[18]
Synthetic compounds based on iron/aluminum	Dyeing polyester fabric at acid pH	(i) 60.0% COD	[48]
Natural material (M1 and M2)	Textile effluent	(i) M1:88% COD; (ii) M2:79% COD	Present work