Mikrovolnovaya obrabotka prirodnykh sorbentov v tekhnologii ochistki stochnykh vod [Microwave treatment of natural sorbents in wastewater purification]

Purpose: Modification of natural sorbents to improve their sorption properties.
Design: Microwave treatment effect on the properties of peat, reindeer moss, moss and pine sawdust.
Research findings: Short-term microwave treatment has no effect on the moisture and oil absorption by peat and moss. On the contrary, the properties of reindeer moss and sawdust are improved, especially of wood waste, i. e., oil capacity increases by 41 %. The microwave treatment of reindeer moss and pine sawdust provides 11.4 and 17 % increase in the sorption capacity in relation to oil products dissolved in water, respectively. The best effect is observed for pine sawdust irradiation with 600 W microwaves for one minute.
Practical implication: Activated sorbents can be used in purification of wastewater containing petroleum products.
Originality/value: The sorption properties of Arctic natural materials modified with microwaves are studied for the first time.

1. Taufik S.H., Ahmad S.A., Zakaria N.N., Shaharuddin N.A., Azmi A.A., Khalid F.E., Merican F., Convey P., Zulkharnain A., Abdul Khalil K. Rice straw as a natural sorbent in a filter system as an approach to bioremediate diesel pollution. Water. 2021. V. 13. 3317. DOI: 10.3390/w13233317

2. Voronov A., Malyshkina E., Maksimova S. Study of meltwater treatment using the industrial waste and natural sorbents. IOP Conference Series: Materials Science and Engineering. 2021. V. 1079. P. 6, 1079 072021. DOI: 10.1088/1757-899X/1079/7/072021

3. Malyshkina E.S., Vyalkova E.I., Osipova E.Yu. Ispol''zovanie prirodnykh sorbentov v protsesse ochistki vody ot nefteproduktov [Water purification with natural sorbents]. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta – Journal of Construction and Architecture. 2019. V. 21. No. 1. Pp. 188–200. DOI: 10.31675/1607-1859-2019-21-1-188-200 (rus)

4. Verma P., Samanta S.K. Microwave-enhanced advanced oxidation processes for the degradation of dyes in water. Environmental Chemistry Letters. 2018. V. 16. Pp. 969–1007. DOI: 10.1007/s10311-018-0739-2

5. Bakhiya Tamuna, Khamizov R.Kh., Bavizhev M.D., Konov M.A. Vliyanie SVCh-obrabotki klinoptilolita na ego ionoobmennye kineticheskie svoistva [Clinoptilolite microwave treatment effect on ion-exchange kinetic properties]. Sorbtsionnye i khromatograficheskie protsessy. 2016. V. 16. No. 6. Pp. 803–812. (rus)

6. Yuen F.K., Hameed B.H. Recent developments in the preparation and regeneration of activated carbons by microwaves. Advances in Colloid and Interface Science. 2009. V. 149. Pp. 19–27. DOI: 10.1016/j.cis.2008.12.005

7. Foo K.Y., Hameed B.H. Microwave-assisted regeneration of activated carbon. Bioresource Technology. 2012. V. 119. Pp. 234–240. DOI: 10.1016/j.biortech.2012.05.061

8. Berdonosov S.S. Mikrovolnovaya khimiya [Microwave chemistry]. Sorosovskii obrazovatel'nyi zhurnal. 2001. V. 7. No. 1. Pp. 32–38. (rus)

9. Bannova E.A., Kitaeva N.K., Merkov S.M., Muchkina M.V., Zaloznaya E.P., Martynov P.N. Izuchenie sposoba polucheniya gidrofobnogo sorbenta na osnove modifitsirovannogo torfa [Production technique of hydrophobic sorbent based on modified peat]. Sorbtsionnye i khromatograficheskie protsessy. 2013. V. 13. No. 1. Pp. 60–68. (rus)

10. Danilov O.S., Mikheev V.A., Moskalenko T.V. Issledovanie vliyaniya elektromagnitnogo mikrovolnovogo izlucheniya na tverdye goryuchie iskopaemye [Electromagnetic microwave effect on solid fuels]. Izvestiya Samarskogo nauchnogo tsentra Rossiiskoi akademii nauk. 2011. V. 13. No. 1 (5). Pp. 1264–1267. (rus)

11. Bel'chinskaya L.I., Khodosova N.A., Novikova L.A. Vliyanie razlichnykh mekhanizmov nagreva sloistogo alyumosilikata na sorbtsionnye protsessy. Soobshchenie 1. Sorbtsiya vody pri teplovom i elektromagnitnom (SVCh) nagreve montmorillonita [Effect of different heating mechanisms of layered aluminosilicate on sorption processes. Message 1. Water sorption under thermal and electromagnetic (microwave) heating of montmorillonite]. Sorbtsionnye i khromatograficheskie protsessy. 2017. V. 17. No. 5. Pp. 781–791. (rus)

12. Faizal A.M., Kutty S.R.M., Ezechi E.H. Removal of oil from water by column adsorption method using microwave incinerated rice husk ash (MIRHA). InCIEC. 2014. Pp. 963–971. DOI: 10.1007/978-981-287-290-6_84

13. Ismail A.S. Preparation and evaluation of fatty-sawdust as a natural biopolymer for oil spill sorption. Chemistry Journal. 2015. V. 05. No. 5. Pp. 80–85.

14. Vialkova E., Obukhova V., Belova L. Microwave irradiation in technologies of wastewater and wastewater sludge treatment: a review. Water. 2021. V. 13 (13). 1784. DOI: 10.3390/w13131784

15. Kamenshchikov F.A., Bogomol'nyi E.I. Neftyanye adsorbenty [Oil adsorbents]. Moscow, Izhevsk: Regulyarnaya i khaoticheskaya dinamika, 2005. 268 p. (rus)

16. Cortez J.S.A., Kharisov B.I., Quezada T.E.S., Hernandez T. Micro- and nanoporous materials capable of absorbing solvents and oils reversibly: The state of the art. Petroleum Science. 2017. V. 14 (1). Pp. 84–104. DOI: 10.1007/s12182-016-0143-0

17. Anuzyte E., Vaisis V. Natural oil sorbents modification methods for hydrophobicity improvement. Energy Procedia. 2018. V. 147. Pp. 295–300. DOI: 10.1016/j.egypro.2018.07.095

18. Galkin V.P. Sushka drevesiny v elektromagnitnom pole sverkhvysokikh chastot: avtoreferat dissertatsii na soiskanie uchenoi stepeni doktora tekhnicheskikh nauk [Drying wood in ultrahigh frequency electromagnetic field. DSc Abstract]. Moscow, 2010. 40 p. (rus)

19. Torgovnikov G., Vinden P. High-intensity microwave wood modification for increasing permeability. Forest Products Journal. 2009. V. 60. No. 2. Pp. 1–12.

20. Torgovnikov G., Vinden P. Sposob mikrovolnovoi obrabotki drevesiny [Method for wood microwave treatment]. Patent Russ. Fed. N 2285875C2, 2006.