English
Русский 17-28 p.
In the Belgorod region, work is underway to create the first high-tech large-scale production of lipid concentrate and animal protein from the larvae of the Black Soldier fly Hermetia illucens in Russia. The lipid concentrate emulsifies well in tap water, which indicates the presence of substances in it that do not belong to triglycerides of fatty acids. Obviously, it contains impurities of compounds present in the larval biomass - protein compounds and their decay products, phospholipids, etc., which can play the role of surfactants. This paper presents the results of studies on the possibility of fat-containing wastewater purification using a sorption material obtained by leaf litter of the horse chestnut genus (Aésculus hippocastanum L.) carbonization. It was found that the lipid concentrate is easily emulsified, both in pure form and in the presence of sodium lauryl sulfate. The resulting emulsions are highly resistant to degradation. It was found that the presence of the surfactant in an amount of 0.01 g/l improves the purification efficiency in the process of the model emulsion adsorption treatment. The addition of 0.6 g of the material allows to reach 92% purification, and with the addition of 1.5 g the efficiency is 98%. Similar amounts of sorbent in a pure emulsion make it possible to achieve values of only 35% and 88%, respectively. When finely dispersed particles of inorganic substances are added to an aqueous medium, the suspension effect is often observed, which manifests itself in the difference between the pH values of the suspension and the filtrate. The results of studies of the amount of added sorbent effect on pH changes in suspensions and filtrates showed that the complex «lipid micelle + sorbent» has a positive charge, and in the presence of the surfactant the charge retains a positive value, but is very close to neutral. An approach to the isoelectric point is observed.
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2. Chatoui M., Lahsaini S., Souabi S., Bahlaoui M.A., Hobaizi S., Pala A. Study of refining wastewater pollution: case of vegetable oil refining industry Morocco. J. Mater. Environ. Sci. 2016. № 7 (10). P. 3906 – 3915.
3. Dmitrieva T.V. Vidy osadkov i sovremennye sposoby ochistki vody. Vektor GeoNauk. 2018. T. 1. № 4. S. 42 – 47.
4. Svyatchenko A.V., CHetverikov A.V., Sapronova ZH.A., SHajhiev I.G. Issledovanie processa ochistki maslosoderzhashchej emul'sii s pomoshch'yu metoda planirovaniya eksperimenta. Chemical Bulletin. 2018. T. 1. № 4. S. 19 – 30.
5. Sverguzova ZH.A., El'nikov D.A., Sverguzova S.V. O vozmozhnosti ispol'zovaniya othoda saharnoj promyshlennosti dlya ochistki stochnyh vod. Vestnik BGTU im. V.G. SHuhova. 2011. № 3. S. 128 – 133.
6. Belyuchenko I.S. Dispersnost' othodov i ih svojstva. Nauchnyj zhurnal KubGAU. 2013. № 92 (08). 22 c.
7. Zueva S.B., Ostrikov A.N., Ilyina N.M., De Michelis I., Vegliò F. Coagulation Processes for Treatment of Waste Water from Meat Industry. Int J Waste Resources. 2013. Vol. 3. Iss. 2. 4 p.
8. Muirhead D., Lead J.R. Measurement of the size and structure of natural aquatic colloids in an urbanised watershed by atomic force microscopy. Hydrobiologia. 2003. 464. P. 65 – 69.
9. Silvestri N., Fila G. et al. An indicator to evaluate the environmental impact of olive oil waste water’s shedding on cultivated fields. Italian Journal of Agronomy. River Agronomy. 2006. № 2. P. 243 – 256.
10. Sunde K., Brekke A., Solberg B. Environmental impacts and costs of hydrotreated vegetable oils, transesterified lipids and woody BTL – a review. Energies. 2011. № 4. P. 845 – 877.
11. Cinelli G., Cofelice M., Venditti F. Veiled Extra Virgin Olive Oils: Role of Emulsion, Water and Anti-oxidants. Colloids Interfaces. 2020. № 4. 20 r.
12. Al'ternativu tradicionnomu zhivotnomu belku sostavit muha «CHyornaya l'vinka» [Elektronnyj resurs]. Rezhim dostupa: https://noc.rf/news/alenkaya-da-udalenkaya-alternativu-tradicionnomu-jivotnomu-belku-sostavit-muha-chernaya-lvinka (data obrashcheniya: 25.04.2021)
13. Devic E., Leschen W., Murray F., Little D.C. Growth performance, feed utilization and body composition of advanced nursing Nile tilapia (Oreochromis niloticus) fed diets containing Black Soldier Fly (Hermetia illucens) larvae meal. Aquaculture nutrition. 2018. Vol. 24, Is. 1. P. 416 – 423.
14. Mohamad-Zulkifli N.F., Yong A. S. et. al. Apparent digestibility coefficient of black soldier fly (Hermetia illucens) larvae in formulated diets for hybrid grouper (Epinephelus fuscoguttatus ♀ x Epineph-elus lanceolatus ♂). AACL Bioflux. 2019. Vol. 12. Is. 2. P. 513 – 522.
15. Stadtlander T., Stamer A., Buser A., Wohlfahrt J., Leiber F., Sandrock C. Hermetia illucens meal as fish meal replacement for rainbow trout on farm. Journal of insects as food and feed. 2017. Vol. 3. Is. 3. P. 165 – 175.
16. SHajhiev I.G., Sverguzova S.V., Sapronova ZH.A., Svyatchenko A.V., Ushakova N.A. Ispol'zovanie biomassy nasekomyh dlya vyrashchivaniya raduzhnoj foreli v akvakul'ture (kratkij obzor zarubezhnoj literatury). Vestnik Astrahanskogo gosudarstvennogo tekhnicheskogo universiteta. Seriya: Rybnoe Hozyajstvo. 2021. № 1. S. 69 – 81.
17. Van Huis A. Potential of insects as food and feed in assuring food security. Annual review of entomology. 2013. Vol. 58. P. 563 – 583.
18. Newton G.L., Sheppard D.C., Watson D.W., Burtle G.J., Dove C.R., Tomberlin J.K., Thelen E.E. The black soldier fly, Hermetiaillucens, as a manure management/resource recovery tool. Symposium on the State of the Science of Animal Manure and Waste Management (San Antonio, Texas, USA, January 5-7). 2005. 7 p.
19. Dicke M. Ecosystem services of insects. In: van Huis, A. &Tomberlin, J. Insects as food and feed – From production to consumption. Wageningen Academic Publishers. 2017. P. 61 – 76.
20. Svyatchenko A.V. Sapronova Zh.A. Shaikhiev I.G. Modification of Chestnut Leaf Litter for Application in Water Treatment. IOP Conf. Series: Earth and Environmental Science. 2021. № 720. 5 r.