1. 1. Lurie Yu.Yu. Handbook of analytical chemistry. M.: Khimiya. 1989. 448 p. (in Russian).
2. 2. Bagrov V.V., Kamrukov A.S., Kostritsa V.N., Zubkov A.A. Natural sorbents and their use for wastewater treatment. Voda. 2017. N 6 (118). P. 38-43 (in Russian).
3. 3. Sverguzova S.V. Slag waste in wastewater treatment. Vestn. BGTU im. V.G. Shukhov. 2010. N 4. P. 133-139 (in Russian).
4. 4. Sverguzova S.V. Purification of waste water from phosphates by arsfurance slags. Microzanieczyszczenia w środowisku czlowieka: mat. Naukowy International conf. Częstochowa, Po-land. 2003. P. 13-22.
5. 5. Malik D.S., Jain C.K., Yadav A.K. Removal of heavy metals from emerging cellulosic low-cost adsorbents: a review. Appl. Water Sci. 2017. V. 7. P. 2113-2136. DOI: 10.1007/s13201-016-0401-8.