Flocculation of suspended solid in gold placer process water

Authors: Gurman M. A.

The article describes tests on sedimentation of fine and dispersed clay particles in process water using flocculating agents Praestol 2515TR and Sanfloc. The test water is sampled from a sluice tailing dump at a gold placer in the Khabarovsk Krai. This placer features high clay content and is assumed as hard-to-sluice gold. The solid content of the process water sample is 40 g/l. The solid represents mainly silt-and-clay particles less than 50 µm in size. The main mineral in the solid is kaolin clay, and quartz makes not more than 30 %. The efficiency of the test agents in aggregation of fine-dispersed silt and clay particles was estimated by the solid sedimentation rate, solid content of clarified suspension and by the density of the solid sediment. The curves of the process water clarification as function of flocculating agent consumption and the kinetic curves of sedimentation are presented. The flocculation properties of agents Praestol 2515TR and Sanfloc are comparable. At the concentration of 1.2 mg/l Praestol 2515TR ensures clarification of process water and reduces the solid content from 40 g/l down to 0.041 g/l.

Keywords: gold placer, process water, fine-dispersed suspended particles, polyacrylamide flocculants, macromolecules, aggregation, sedimentation, clarification rate.
For citation:

Gurman M. A. Flocculation of suspended solid in gold placer process water. MIAB. Mining Inf. Anal. Bull. 2021;(12-1):76—84. [In Russ]. DOI: 10.25018/0236_1493_2021_121_0_76.

Acknowledgements:
Issue number: 12
Year: 2021
Page number: 76-84
ISBN: 0236-1493
UDK: 628.31
DOI: 10.25018/0236_1493_2021_121_0_76
Article receipt date: 18.07.2021
Date of review receipt: 29.10.2021
Date of the editorial board′s decision on the article′s publishing: 10.11.2021
About authors:

Gurman M. A., Cand. Sci. (Eng), leading researcher, mgurman@yandex.ru, Mining Institute, Far East Branch, Russian Academy of Sciences, Khabarovsk, Russia, 680000, 51 Turgenev street.

For contacts:
Bibliography:

1. Rasskazov I.Yu., Litvintœv V. S.,Mirzehanov G. S., Banshchikova T. S. Priority directions of the development of technogenic complexes of ore-alluvial deposits Nedropol’zovanie XXI vek, 2016, no. 1, pp. 48—57. [In Russ]

2. Litvincev V. S., Alekseev V. S., Vasyanovich YU. A., Kradenyh I. A. The value of the integrated potential of technogenic placer deposits in the regions of the Russian Far East and a new strategic approach to their development. MIAB. Mining Inf. Anal. Bull. 2019, no. 8 (30), pp. 78—86. [In Russ]

3. Seriy R. S. Obzor otrasli. Analiz raboty shlyuzovyh promyvochnyh priborov pri otrabotke rossypnyh mestorozhdenij zolota Habarovskogo kraya [Industry Overview. Analysis of the work sluice washing equipment in mining of placer deposits of gold Khabarovsk Krai]. 19.01. 2018. available at: https://nedradv.ru [In Russ]

4. Gurman M. A., Shcherbak L. I., Bogomyakov R. V., Vylegzhanina E. V. Mineralogical test and production research of gold mine waste. Journ. of Mining Science, 2016, 52(5), pp. 974—981.

5. Baran A. A. Polimersoderzhashchie dispersnye sistemy [Polymer-dispersed systems]. Kiev, Naukova Dumka, 1986, 204 p. [In Russ]

6. Zapol’skij A. K., Baran A. A. Koagulyanty i flokulyanty v processah ochistki vody: Svojstva. Poluchenie. Primenenie [Coagulants and flocculants in water purification processes: Properties. Receiving. Application], Leningrad, Himiya, 1987, 208 p. [In Russ]

7. Kulskiy L. A. Osnovy himii i tekhnologii vody [Fundamentals of water chemistry and technology] Kiev, Naukova Dumka, 1991, 566p. [In Russ]

8. Kovalev A. A., Lebukhov V. I., Denisova M. A. (Gurman M. A.) High-molecular flocculants for the conditioning of circulating and waste waters at processing of placer deposits. Himiya i tekhnologiya vody, 1989, no. 5, pp. 445—448. [In Russ]

9. Kovalev A. A., Lebukhov V. I., Denisova M. A. (Gurman M. A.) Auth. certificate for the invention of the USSR 1639708, С02F, 17.04.89. [In Russ]

10. Chee Yang Teh, Pretty Mori Budiman, Katrina Pui Yee Shak, Ta Yeong Wu. Recent Advancement of Coagulation–Flocculation and Its Application in Wastewater Treatment. Industrial & Engineering Chemistry Research, 2016, 55, 16, pp. 4363—4389 (CrossRef)

11. Shulei Li; Lihui Gao; Yijun Cao; Xiahui Gui; Zhen Li. Effect of pH on the flocculation behaviors of kaolin using a pH-sensitive copolymer. Water Scitnce & Technology, 2016, 74 (3), pp. 729–737. available at: https://iwaponline.com

12. Verhozin S. S. Thickening: process and equipment. Overview. Zolotodobycha, 2018, no. 232, 8 p. available at: https://zolotodb.ru [In Russ]

13. Onen V., Gocer M. The effect of single and combined coagulation/flocculation methods on the sedimentation behavior and conductivity of bentonite suspensions with different swelling potentials. Particulate Science And Technology. 2019, vol.37, no.7, pp. 823—830.

14. Gurman M. A., Shepeta E. D., Poltareckaya A. E., Vasyanovich Yu.A. Flotation results of gold-copper porphyry ore. MIAB. Mining Inf. Anal. Bull. 2019, no. 8 (30), pp. 42—49. [In Russ]

15. Kurenkov V. F., H.-G. Hartan, Lobanov F. I. Intensification of water treatment by polyacrylamide flocculants. Vestnik Kazanskogo tekhnologicheskogo universiteta. 2008, no. 5, pp. 28—49. available at:https://cyberleninka.ru [In Russ]

16. Spravochnik himika 21. Himiya i himicheskaya tekhnologiya [Chemist’s Handbook Chemistry and Chemical Technology], available at: https://chem21.info (accessed 03.02.21)

17. Flokulyanty Praestol [Flocculants Praestol], available at: https://swatstroi.ru (accessed 16.02.21)

18. Ahmad Shakeel, Zeinab Safar, Maria Ibanez, Leon van Paassen, Claire Chassagne Flocculation of Clay Suspensions by Anionic and Cationic Polyelectrolytes: A Systematic Analysis. Minerals, 2020, vol.10, iss.11, pp. 1—24.

19. Jose Moreno-Chavez. Effect of Electrolyte Concentration in Process Water on Flocculation. Journal of the Mexican Chemical Society, 2020, 64(1), pp.14—29.

20. Zimon A. D. Kolloidnaya himiya [Сolloid Сhemistry], Moscow, Krasand, 2015, 342 p. [In Russ]

21. Kruglyakov P. M., Haskova T. N. Fizicheskaya i kolloidnaya himiya [Physical and Сolloid Сhemistry], Moscow, Vysshaya shkola, 2010, 320 p. [In Russ]

22. ZHurba M. G., Sokolov L. I., Govorova ZH. I. Vodosnabzhenie. Proektirovanie sistem i sooruzhenij. Ochistka i kondicionirovanie prirodnyh vod [Design of systems and structures. Purification and conditioning of native waters], Moscow, Associacii stroitel’nyh vuzov, vol 2, 2004, 495 p. [In Russ]

23. Praestol marki TR (dlya obrabotki pit’evoj vody) [Praestol brand TR (for drinking water treatment)], available at: https://waterhim.ru (accessed 24.06.21)

24. Performance chemicals for wastewater treatment. available at: http://www.sanyochemical.co.jp (accessed 19.08.21)

25. Bedran’ N. G. Denisenko A. I., Sergo E. E. Praktikum po obogashcheniyu poleznyh iskopaemyh [Mineral processing practical work], Moscow, Nedra, 1991, 526 p. [In Russ]

26. Kovalev A. A., Lebuhov V. I., Denisova M. A. (Gurman M. A.) Primenenie poliakrilamidnyh flokulyantov dlya kondicionirovaniya oborotnyh i stochnyh vod predpriyatij rossypnoj metallodobychi. Metodich. rekomendacii [The use of polyacrylamide flocculants for the conditioning of circulating and waste waters of enterprises of placer mining. Methodical. recommendations],Vladivostok, IGD DVO AN SSSR, 1989, 32 p.

Our partners

Подписка на рассылку

Раз в месяц Вы будете получать информацию о новом номере журнала, новых книгах издательства, а также о конференциях, форумах и других профессиональных мероприятиях.