ALEXANDER CHIDIEBERE OKORO; LOUIS CHUKWUEMEKA ORAKWE; CHIKE PIUS NWACHUKWU; ELLA IFEANYI UGWU; ELIJAH CHIBUZO UGWU; KENNETH EZE; CHUKWUEMEKA OBUMNEME UMOBI. Optimum Value for Zinc Removal from Saponin-Based Soil Washing Across soils at Onyeama Dumpsite, Enugu State. Greenation International Journal of Engineering Science, [S. l.], v. 3, n. 2, p. 74–85, 2025. DOI: 10.38035/gijes.v3i2.545. Disponível em: https://research.e-greenation.org/GIJES/article/view/545. Acesso em: 28 dec. 2025.