Enhanced Ciprofloxacin Removal from Aqueous Solution Using a Chemically Modified Biochar Derived from Bamboo Sawdust: Adsorption Process Optimization with Response Surface Methodology

Table 2

Adsorbent screening test for CIP removal.

Adsorbent	Short name	% CIP removal	Decision
Unmodified bamboo biochar	UBC	45.01	Not selected
Ferric chloride modified bamboo biochar	FMBC	67.38	Not selected
Potassium hydroxide modified bamboo biochar	KMBC	79.45	Not selected
Ferric chloride+potassium hydroxide modified bamboo biochar	MBC	95.67	Selected

Experimental condition: CIP initial concentration: 25 mg L^-1, adsorbent dose: 0.5 g L^-1, time: 46.25 min, and pH: 7.0.