| Autor: |
Volkova, V. N., Kundenok, S. B., Volkov, D. V., Golovin, V. L. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2791 Issue 1, p1-9, 9p |
| Abstrakt: |
One of the main sources of environmental pollution is industrial wastewater, the volume of which in Russia is very large and is not always estimated at the proper level, which leads to ecosystem disruption. Currently, wastewater treatment of enterprises from heavy metal ions is an urgent environmental problem. Surface water bodies require preliminary purification of water from colloidal impurities. One of the main stages of water treatment is reagent treatment and dilution, during which the amount of colloidal impurities is reduced. The formation of a significant number of hazardous sources of pollution, such as spent electrolytes and washing wastewater, requires the development and implementation of modern systems for the disposal of spent electrolytes and the development of safe and economical technologies for the disposal of formed solid deposits. The most difficult to neutralize are solutions formed in the technological cycle in the processes of electrolytic chromium plating. High concentrations of Cr(VI) compounds and the aggressiveness of these acidic solutions make it difficult to store and transport them for further processing. This article discusses the methods of reagent treatment of wastewater from impurities of galvanic production, which is carried out by precipitating magnesium and calcium ions from sea water, in the presence of a coagulant, aluminum salt and sodium hydroxide. To process the experimental data, a regression equation was obtained on a dimensionless time scale with the parameters of approximation of the results of computer simulation. The model shows flocculus formation over time. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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