Physical and chemical properties of copper-zinc galvanic sludge in the process of thermal treatment

Vasylii Larin, Vita Datsenko, Lilya Egorova, Inna Hraivoronskaia, Tetiana Herasymchuk


This academic work is focused on the study of physical-chemical patterns of copper-zinc galvanic sludge dissolution prior to and after thermal treatment in model solutions with a given pH. They show that all types of galvanic sludge eluates prior to and after thermal treatment are characterized by rather high concentrations of Cu2+ and Zn2+ ions. In acid eluates, the contents of zinc and copper ions are comparable. In extracts of distilled water and buffer solution, Zn2+ concentrations are higher than those of Cu2+. It has been established that the thermal treatment of galvanic sludge does not contribute to the retention of heavy metal ions in the sample. The intensity of dissolution of copper and zinc from galvanic sludge after thermal treatment increases with decreasing pH. It is proved that copper-zinc galvanic sludge presents a potential water-migration hazard.


dissolution; copper; zinc; galvanic sludge; model medium; thermal treatment

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Pal M. The Complete Book on Waste Treatment Technologies. Delhi, India: Niir Project Consultancy Services; 2015, pp.556.

Zhang Y, Shi P, Chen L, Tang Q. Utilization of Electroplating Sludge as Subgrade Backfill Materials: Mechanical and Environmental Risk Evaluation. Advances in Civil Engineering 2018;2018:1-9.

Zhang M, Chen C, Mao L, Wu Q. Use of electroplating sludge in production of fired clay bricks: Characterization and environmental risk evaluation. Construction and Building Materials 2018;159:27-36.

Datsenko V, Khimenko N, Egorova L, Svishchova Y, Dubyna �, Budvytska O, Lyubymova N, Pasternak V, Pusik L. Construction of the algorithm for assessing the environmental safety of galvanic sludges. Eastern-European Journal of Enterprise Technologies 2019;6(10 (102)):42-48.

Orescanin V, Durgo K, Mikelic I, Halkijevic I, Kuspilic M. Toxicity assessment of untreated/treated electroplating sludge using human and plant bioassay. Journal of Environmental Science and Health, Part A 2018;53(10):925-930.

Pawlak-Kruczek H, Wnukowski M, Krochmalny K, Kowal M, Baranowski M, Zgóra J, Czerep M, Ostrycharczyk M, Niedzwiecki L. The Staged Thermal Conversion of Sewage Sludge in the Presence of Oxygen. Journal of Energy Resources Technology 2019;141(7):.

Surzhko OA, Epishin VV, Okovitaya KO. Termoobrabotka shlamov galvanicheskih proizvodstv i ispolzovanie ih v proizvodstve stroitelnyh materialov. Aktualnye problemy gumanitarnyh i estestvennyh nauk 2015;7(4):176-180.

Krstic I, Zec S, Lazarevic V, Stanisavljevic M, Golubovic T. Use of sintering to immobilize toxic metals present in galvanic sludge into a stabile glass-ceramic structure. Science of Sintering 2018;50(2):139-147.