	US 11,896,952 B1
	Adsorbent using biowaste and plastic waste for wastewater treatment
Junaid Saleem, Doha (QA); Sk Safdar Hossain, Hofuf (SA); Zubair Khalid Baig Moghal, Doha (QA); and Gordon McKay, Doha (QA)
Assigned to KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed by KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed on Oct. 12, 2023, as Appl. No. 18/379,374.
Int. Cl. B01J 20/20 (2006.01); B01J 20/26 (2006.01); C02F 1/28 (2023.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); C02F 101/30 (2006.01)

CPC B01J 20/261 (2013.01) [B01J 20/20 (2013.01); B01J 20/28004 (2013.01); B01J 20/28016 (2013.01); B01J 20/305 (2013.01); B01J 20/3078 (2013.01); B01J 20/3085 (2013.01); C02F 1/288 (2013.01); C02F 1/283 (2013.01); C02F 1/285 (2013.01); C02F 2101/308 (2013.01)]

18 Claims

1. A method of making an adsorbent composite from lemon peel and a polymer, the method comprising:

obtaining lemon peels;

cutting and drying the lemon peels to obtain lemon peel pieces;

activating the dried lemon peel pieces to obtain activated lemon peel pieces;

pyrolyzing the activated lemon peel pieces to obtain activated lemon peel chars;

dissolving at least one polymer in an organic solvent to obtain a polymer solution;

dispersing the activated lemon peel chars in the polymer solution to obtain a mixture;

extracting the organic solvent from the mixture to obtain a composite; and

annealing the composite to provide the adsorbent composite.