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UDC 628.112

Larionov S. Iu., Panteleev Aleksei, Riabchikov Boris, Shilov Mikhail, Kasatochkin A. S.

Cleaning up underground water from chlororganic compounds

Summary

Chlororganic compounds present in underground water are technogenic pollution products. The water in a number of deep wells that supply Podolsk and Troitsk cities in the Moscow Area with water is characterized by elevated concentrations of volatile chlororganic compounds (carbon tetrachloride, trichloroethylene and tetrachlorethylene). To provide for water purification according to the drinking water standards a number of technologies is suggested: surface aeration, ozonation, activated carbon treatment, sorption on activated carbon, membrane filtration. The technology of removing volatile chlororganic compounds from water was tested in an experimental plant including primary aeration of raw water in a vacuum-ejection unit with subsequent filtration in filters with granulated activated carbon, and salt composition correction with nanofiltration. The operation of a unit with primary ozonation of water before supply to the carbon filter was tested. It was shown that aeration provided for 50–80% removal of volatile chlororganic compounds which could significantly improve the operating life of a carbon filter. After treatment with activated carbon the concentration of all chlororganic compounds was lower compared to the regulations. Since water ozonation involves high ozone consumption ozone dosage higher than 100 mg/l is required to ensure the reduction of trichloroethylene and tetrachlorethylene concentrations to the standard value. Tetrachlorethylene is oxidized heavier than other compounds (the regulatory concentration is not reached). Nanofiltration with «Nano NF 4040» membrane manufactured by «RM Nanotech» domestic producer provides for water purification according to Sanitary Regulations and Norms 2.1.4.1074-01 without using any other technologies. However, nanofiltration involves primary water treatment – de-ironing and mechanical filtration.

Key words

potable water , aeration , membrane technology , pilot tests , volatile chlororganic compounds , nanofiltration

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REFERENCES

1. Arutiunova I. Iu. [Studying different process modes of water treatment aiming at the reduction of concentrations of chlor­organic compounds in drinking water]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2005, no. 10, part 1, pp. 11–22. (In Russian).
2. Amin A. A. [Studying the formation of trihalomethanes in the Bagdad water supply system]. Inzhenernyi Vestnik Dona, 2013, no. 3. http://www.ivdon.ru/magazine/archive/n3y2013/1753 (accessed 23.03.2015). (In Russian).
3. Koverga A. V., Blagova O. E., Strikhar Iu. V. [Reduction of chlororganic compounds concentration at the Moscow water treatment plants]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2009, no. 10, part 1, pp. 39–42. (In Russian).
4. Ivanov V. A., Burlin M. Iu., Rastorguev A. V. [Underground water pollution with chlororganic compounds and measures of protection from them by the example of a big water intake in the Moscow Area / Underground water resources. Current problems of investigations and use]. Proceedings of International Scientific Conference. Moscow, May 13–14, 2010 (On the occasion of centenary of the birth of Boris Ivanovich Kudelin). Moscow, MAKS Press Publ., 2010, pp. 490–496. (In Russian).
5. Sapina N. V. Razrabotka tekhnologii ochistki vody ot fenola i khloroforma pri ikh sovmestnom prisutstvii i ee vliianie na potrebitel’skie svoistva molochnykh produktov [Development of water treatment technology for removing phenol and chloroform under their joint presence and its impact on the customer properties of dairy products: Ph. D. thesis in Engineering Science. Kemerovo, 2004, 152 p.].
6. Grinevich V. I., Gushchin A. A., Plastinina N. A. [Destruction of phenol and synthetic surfactants dissolved in water by electrochemical effect in combination with ozonation]. Izvestiia Vuzov. Seriia Khimiia i Khimicheskaia Tekhnologiia, 2009, v. 52, no. 2, pp. 130–134. (In Russian).
7. Shulyk V. Ia., Gushchin A. A. [Low temperature processes of decomposition of organic compounds dissolved in water]. «Lomonosov 2013» Conference. http://lomonosov-msu.ru/archive/Lomonosov_2013/2164/59584_c6b9.pdf (accessed 23.03.2015). (In Russian).
8. Gushchin A. A., Grinevich V. I., Izvekova T. V., Shulyk V. Ia. [Kinetics of destruction of chlororganic compounds dissolved in water in barrier discharge plasma]. Proceedings of 5th All-Russian Conference «Current Problems of High-Energy Chemistry». Moscow, 2012, pp. 19–22. http://www.spsl.nsc.ru/FullText/konfe/XBEV-2012.pdf (accessed 23.03.2015). (In Russian).
9. Issledovanie metodov udaleniia iz vody trikhloretilena i tetrakhloretilena OOO ITTs «Kompleksnye issledovaniia» [Studies of methods of removing trichloroethylene and tetrachlorethylene from water «Comprehensive Studies» Engineering and Technical Centre LLC]. http://www.xenozone.ru/ (accessed 23.03.2015).
10. Samatov A. M., Tkachenko I. S. Ozono-sorbtsionnaia ochistka podzemnoi vody ot trikhlor- i tetrakhloretilena [Ozonation-sorption treatment of underground water to remove trichloroethylene and tetrachlorethylene]. http://kurs.znate.ru/docs/ index-195737.html (accessed 23.03.2015).
11. Rukovodstvo na tekhnologiiu podgotovki pit’evoi vody, obespechivaiushchuiu vypolnenie gigienicheskikh trebovanii v otnoshenii khlor­organicheskikh soedinenii [Guidelines for drinking water treatment to ensure meeting the hygienic regulations in relation to chlororganic compounds. Moscow, ONTI AKH Publ., 1989, 12 p.]. http://www.standartov.ru/norma_doc/41/41769/index.htm (accessed 23.03.2015).
12. MDS 40-3.2000. Metodicheskie rekomendatsii po obespecheniiu vypolneniia trebovanii sanitarnykh pravil i norm SanPiN 2.1.4.559-96 «Gigienicheskie trebovaniia k kachestvu vody tsentralizovannykh sistem pit’evogo vodosnabzheniia. Kontrol’ kachestva» na vodoprovodnykh stantsiiakh pri ochistke prirodnykh vod [Construction Guidelines 40-3.2000. Guidelines for meeting the Sanitary Rules and Norms 2.1.4.559-96 «Hygienic requirements to the water quality in public water supply systems. Quality Control» at the water treatment facilities in the process of natural water purification].
13. Krasnova T. A., Kirsanova M. P., Ushakova O. I. [Development of sorption technology for removing chloroform from water]. Khimiia v Interesakh Ustoichivogo Razvitiia, 2001, no. 9, pp. 649–653. (In Russian).
14. Usol’tsev V. A., Sokolov V. D., Skolubovich Iu. L., Alekseeva L. P., Draginskii V. L. Podgotovka vody pit’evogo kachestva v g. Kemerove [Drinking water treatment in Kemerovo. Moscow, NII KVOV Publ., 1996, 117 p.].
15. Draginskii V. L., Alekseeva L. P., Samoilovich V. G. Ozonirovanie v protsessakh ochistki vody [Ozonation in water treatment processes. Under the general editorship of V. L. Draginskii. Moscow, DeLi Print Publ., 2007, 395 p.].
16. Riabchikov B. E. Sovremennaia vodopodgotovka [Advanced water treatment. Moscow, DeLi Plius Publ., 2013, 680 p.].
17. Panteleev A. A., Riabchikov B. E., Khoruzhii O. V., Gromov S. L., Sidorov A. R. Membrannye tekhnologii v promyshlennoi vodopodgotovke [Membrane technologies in industrial water treatment. Moscow, DeLi Plius Publ., 2012, 429 p.].