Removal of Reactive Red 120 in a Batch Technique Using Seaweed-Based Biochar: A Response Surface Methodology Approach

Table 1

Design of experiment input factors with different levels.

Levels			Variables	Code
1	0	-1
1	2	3	Biochar dose (g/L)	A
2	3	4	pH	B
250	500	750	Initial dye concentration (mg/L)	C
30	35	40	Temperature (°C)	D