A combined purification of fluorine-containing foul water

Autor: O. I. Kuntsevich, E. O. Sal'nikova
Rok vydání: 1985
Předmět:
Zdroj: Glass and Ceramics. 42:389-391
ISSN: 1573-8515
0361-7610
DOI: 10.1007/bf00701013
Popis: An experiment was carried out for two-stage water purification. A solution of AOC ( aluminum oxychloride) was added to a neutralized and clarified foul water and the pH brought up to 11.5 by lime water. After cleaning, the required components were identified. This method is simple and in relation to the apparatus used does not differ from the neutralization method. Therefore under industrial conditions the process can be carried out using the standard equipment. The hypothesis that flouride is codeposited with CHSA-3 has been confirmed experimentally. With additional purification using the sulfo-aluminate method, the value of the pH immediately after deposition is greater than the norm. The results obtained have made it possible to develop a simple, effective method of combining high purification of foul water from flourine and sulfates with the simultaneous additional deposition of heavy ferrous metals.
Databáze: OpenAIRE