bbk 000000

UDC 628.161.3

FESENKO L. N., Ignatenko S. I., Fedotov R. V.

Desiliconization of drinking water by modified media filtration

Summary

A brief evaluation of water desiliconization technologies is given. The results of experimental investigations of eliminating silicic acid compounds from water by deposition on aluminum and iron hydroxides, contact coagulation in a granular bed and modified media filtration are presented. Activated aluminum oxide filtering media modified with 0.5% sodium aluminate solution attains twice as much sorption capacity (compared to media regeneration with alkali) in relation to orthosilicates. Herein 95–97% desiliconization efficiency is ensured alongside with simultaneous reduction of water hardness. Non-waste technology of underground water desiliconization with modifying chemical reuse and generation of crystalline dewatered alumosilicate used in ceramics production as process wastes was developed.

Key words

potable water , filtration , loading material , sodium aluminate , desiliconization , activated aluminum oxide , alumosilicate sludge

The further text is accessible on a paid subscription.
For authorisation enter the login/password.
Or subscribe

SPISOK LITERATURY

1. Alekseev V. S., Boldyrev K. A., Teslia V. G. O neobkhodimosti peresmotra normativnogo soderzhaniia kremniia v pit'evoi vode // Vodosnabzhenie i san. tekhnika. 2011. № 5.
2. Mazaev V. T., Shlepnina T. G. Otsenka stepeni sanitarnoi opasnosti soedinenii kremniia v prirodnoi i pit'evoi vode // Vodosnabzhenie i san. tekhnika. 2011. № 7.
3. SanPiN 2.1.4.1074-01. Pit'evaia voda. Gigienicheskie trebovaniia k kachestvu vody tsentralizovannykh sistem pit'evogo vodosnabzheniia. Kontrol' kachestva.
4. Seliukov A. V., Raff P. A. Obeskremnivanie podzemnykh vod na sooruzheniiakh obezzhelezivaniia-demanganatsii // Vodosnabzhenie i san. tekhnika. 2012. № 4.
5. Ailer R. Khimiia kremnezema: Rastvorimost', polimerizatsiia, kolloidnye i poverkhnostnye svoistva, biokhimiia. V 2-kh chastiakh. Ch 1. – M.: Mir, 1982.
6. Karelin F. N., Khakimov R. O. Obratnoosmoticheskaia ochistka kremniisoderzhashchikh vod // Khimiia i tekhnologiia vody. 1992. T. 4. № 4.
7. Ovodova N. V. Modifikatsiia molekuliarnykh grupp na poverkhnosti zeren fil'truiushchego materiala dlia uvelicheniia ego griazeemkosti / Bezreagentnaia ochistka vody dlia sel'skokhoziaistvennogo vodosnabzheniia. – Novocherkassk, 1977. T. XIII. Vyp. 6.
8. Nikoladze G. I. Uluchshenie kachestva podzemnykh vod. – M.: Stroiizdat, 1987.
9. Nikoladze G. I. Tekhnologiia ochistki prirodnykh vod. – M.: Vysshaia shkola, 1987.
10. Kliachko V. A., Apel'tsin I. E. Podgotovka vody dlia promyshlennogo i gorodskogo vodosnabzheniia. – M.: Gos. izd-vo lit. po stroit., arkhitekture i stroit. materialam, 1962.
11. Remi G. Kurs neorganicheskoi khimii. T. 1. – M.: Izd-vo inostrannoi literatury, 1963.
12. Butt Iu. M., Timashev V. V. Khimicheskaia tekhnologiia viazhushchikh materialov. – M.: Vysshaia shkola, 1980.
13. Kravchenko I. V., Kuznetsova T. V., Vlasova M. T. i dr. Khimicheskaia tekhnologiia spetsial'nykh tsementov. – M.: Stroiizdat, 1979.