Investigation of the Sorption Properties of Sapropel in Industrial Wastewater
Authors
Gulnoza Zayniddin qizi Khomitova, Matluba Mukhtarovna Amonova
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This article investigates the treatment of textile and printing industry wastewater using a sorbent based on local sapropel. The aim was to evaluate stabilization of the cation-anion composition and the deep purification of highly mineralized wastewater contaminated with organic dyes generated during the washing of printed fabrics. Physicochemical analysis showed that the initial wastewater contained 608 mg/L sulfate and had a total hardness of 14.4 meq/L; it was also characterized by a reddish color and a sulfurous odor associated with 32.3 mg/L hydrogen sulfide. Treatment with the sapropel-based sorbent reduced sodium from 215 to 105 mg/L, sulfate from 608 to 298 mg/L, total hardness to 7.78 meq/L, and hydrogen sulfide to 14.23 mg/L. Decolorization and deodorization were also achieved. The results demonstrate the sorption potential of humic and mineral components of sapropel and support further development of this local material for industrial wastewater treatment. Because ammonium, nitrate, and oxidizability did not decrease, an additional polishing stage should be evaluated when deeper removal of nitrogenous and oxidizable contaminants is required.
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Authors
Gulnoza Zayniddin qizi Khomitova, Matluba Mukhtarovna Amonova
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References:
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