Study of Modern Nano Enhanced Techniques for Removal of Dyes and Metals

Table 1

Adsorption of heavy metals and organic contaminants by biochar.

Type of biochar	Organic compounds	Heavy metals	Maximum adsorption capacity		Time for maximum adsorption
			(%)/mg kg^−		(days)		References
			O.C.	Heavy metals	O.C.	Heavy metals
Rice straw	Sulfamethoxazole (SMX)	Cd(III)	9182.74 mg kg^−	35919.54 mg kg^−	—	—	[62]
Wheat straw	Diuron	—	—	—	—	—	[56]
P-rich dairy manure	Atrazine	Pb(II)	66–81%	72–89%	210 days	120 days	[58]
Wood chip	Chlorpyrifos and carbofuran insecticides	—	—	—	—	—	[55]
Corn straw	—	Cu(II), Zn(II)	—	—	—	—	[74]