Development of technology for recycling the liquid iron-containing wastes of steel surface etching
DOI:
https://doi.org/10.15587/1729-4061.2017.97256Keywords:
liquid wastes, regeneration, hydration, used-up etching solutions, redox properties, wash waterAbstract
Results of the conducted theoretical and practical research into processes of recycling the iron-containing wastes of steel surfaces etching are presented, namely, regeneration and utilization of used-up etching solutions and purification of wash water. Based on the results of research, new technological approaches to waste recycling with the view of minimizing their discharge into the environment and reducing costs of an enterprise were substantiated and practically tested.
The existing technologies for recycling the iron-containing wastes of steel surfaces etching require updating in order to minimize their discharge into environment and to reduce the expenditures of an enterprise. It is known that in the theoretical approach to the concentrated solutions of electrolytes, so many correction coefficients were introduced to the theory of calculations that the results of calculations lose their physical essence. Therefore, for the concentrated solutions, it is necessary to determine the basic parameters experimentally.
After exploring the technology of wash water purification, it was established that the most effective way is treatment with lime with flocculant (brand Zetag 8180) and filtering through a filter with polystyrene foam. A part of the treated water was passed through a reverse osmosis system, which, at subsequent mixing with the main part of the flow, makes it possible to obtain water of the “Technical water” category II quality.
In order to develop a technology for the regeneration of used-up etching solutions, we conducted research into redox properties of UES both with Н2О2 and without it at different pH values. The optimal scheme of treatment is the one that includes alkalization with a 40 % solution of Са(ОН)2 until achieving pH=4.2, and treatment with a hydrogen peroxide solution.
The technology of recycling of used-up etching solutions with the application of UES as a chemical reagent makes it possible:
1) with the alkalization, to provide optimal extraction of zinc from complex compounds, which also increases at a co-sedimentation of zinc and iron;
2) to provide optimal conditions for the oxidation of organic compounds in alkaline wastewater after degreasing operations.References
- Korchyk, N. M., Bielikova, S. V. (2012). Ochystka y reheneratsyia stochnykh vod halvanycheskoho proyzvodstva. Ekolohiya plus, 6 (33), 10–13.
- Denzanov, H. O., Petruk, V. H., Tkhor, I. I. (2008). Pat. No. 35548 UA. Sposib reheneratsiyi i utylizatsiyi vidprats'ovanykh travyl'nykh rozchyniv. MKP S01G 3/00. No. U200804873; declareted: 15.04.2008; published: 25.09.2008, Bul. No. 18, 10.
- Nester, A. A., Korchyk, N. M., Baran, B. A. (2008). Stichni vody pidpryiemstv ta yikh ochynnia. Khmelnytsk: KhNU, 171.
- Uretskyi, E. A. (2007). Resursosberehaiushchye tekhnolohyy v vodnom khoziaistve promyshlennykh predpryiatyi. Brest: BrHTU, 396.
- Vasylenko, I. A., Pivovarov, O. A. (2016). Zalizooksydni pihmenty. Syntez, modyfikuvannia, vykorystannia u riznykh haluziakh nauky i tekhniky. Dnipropetrovsk: Aktsent PP, 217.
- Vasylenko, I. A., Kuman'ov, S. O. (2011). Pat. No. 102154 UA. Sposib utylizatsiyi kyslykh zalizovmisnykh rozchyniv. MKP S09S 1/22. No. a201112825; declareted: 01.11.2011; published: 10.06.2013, Bul. No. 11, 6.
- Kruhlykov, S. S., Turaiev, D. Yu., Buzykova, A. M. (2009). Reheneratsyia rastvora travlenyia medy v proyzvodstve pechatnykh plat metodom membrannoho elektrolyza. Halvanotekhnyka i obrabotka poverkhnosty, 1, 40–48.
- Mel'nykov, B. I., Vasylenko, I. A., Vakal, S. V., Zolotar'ov, O. Ye. (2009). Pat. No. 91164 UA. Sposib oderzhannya zalizooksydnoho pihmentu. MKP S09S 1/22, 1/24. No. 200907856; declareted: 27.07.2009; published: 26.06.2010, Bul. No. 12, 8.
- Aydin, A. A., Aydin, A. (2014). Development of an immobilization process for heavy metal containing galvanic solid wastes by use of sodium silicate and sodium tetraborate. Journal of Hazardous Materials, 270, 35–44. doi: 10.1016/j.jhazmat.2013.12.017
- Sharma, V. K., Yngard, R. A., Cabelli, D. E., Clayton Baum, J. (2008). Ferrate(VI) and ferrate(V) oxidation of cyanide, thiocyanate, and copper(I) cyanide. Radiation Physics and Chemistry, 77 (6), 761–767. doi: 10.1016/j.radphyschem.2007.11.004
- Vasylenko, I. A., Kuman'ov, S. O. (2011). Pat. No. 100944 UA. Sposib oderzhannya zhovtoho zalizooksydnoho pihmentu. MKP S09S 1/22, 1/24; S01G 45/02. No. 201112246; declareted: 19.10.2011; published: 11.02.2013, Bul. No. 3, 12.
- Vasylenko, I. A., Chyvanov, V. D., Bordunova, O. D. (2011). Pat. No. 99538 UA. Sposib oderzhannya chornoho zalizooksydnoho pihmentu. MKP S09S 1/22, 1/24, 1/62, 3/06. No. 201101341; declareted: 07.02.2011; published: 27.08.2012, Bul. No. 16, 8.
- Natsional'na dopovid' pro stan navkolyshn'oho pryrodnoho seredovyshcha v Ukrayini: za danymy Ministerstva okhorony navkolyshn'oho pryrodnoho seredovyshcha Ukrayiny za 2007–2009 rr. Ministerstvo ekolohiyi ta pryrodnykh resursiv Ukrayiny. Available at: http://www.menr.gov.ua/
- Zapolskyi, A. K. (2005). Fizyko-khimichni osnovy tekhnolohii ochyshchennia stichnykh vod. Kyiv: Vyshcha shkola, 671.
- Korchyk, N. M., Yatskov, M. V., Byelikova, S. V. (2012). Pat. No. 76053A UA. Sposib ochyshchennya stichnykh vod hal'vanichnoho vyrobnytstva. MKP S02F 9/04. No. u201206086; declareted: 21.05.2012; published: 25.12.2012, Bul. No. 24, 11.
- Fedushchak, N. K., Bidnychenko, Yu. D., Kramarenko, S. Yu. (2012). Analitychna khimiia. Vinnytsya: Nova knyha, 477.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2017 Yatskov Mykola, Natalia Korchyk, Nadia Budenkova, Svitlana Kyrylyuk, Oleg Prorok
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.