Recent Literature Review of Significance of Polypyrrole and Its Biocomposites in Adsorption of Dyes from Aqueous Solution

Table 1

Advantages and disadvantages associated with different dye removal techniques [38].

Methods	Advantage	Disadvantage
Biological treatments	Cheap	Not suitable for all dyes
Coagulation	Low cost	High sludge production
Membrane diffusion	Low pressure	Poor quality of water post treatment
Fenton process	Effective oxidation of contaminants	High sludge production
Adsorption	Cost friendly, nonhazardous, and reusable	Require disposal