STABILIZATION OF ACTIVE SLUDGE AFTER WASTEWATER TREATMENT CONTAMINATED BY PETROLEUM PRODUCTS
DOI:
https://doi.org/10.18372/2306-1472.67.10438Keywords:
active sludge, chemical stabilization, hydrogen peroxide, resistivity of sludge filtrationAbstract
Purpose: Biochemical purification of wastewater containing refined petroleum products takes place due to the oxidation of pollutants by active sludge organisms. As a result of this process the intense consumption of pollutants by active sludge and its growth occurs. Therefore, the possibility to use active sludge containing refined petroleum products after wastewater treatment requires its stabilization. Methods: In this work the oxidation by a 30% hydrogen peroxide solution was studied for its use as a stabilizer. Chemical oxidizers, including hydrogen peroxide destroy organic polymers retaining free water thus promoting water release from the structure of sludge particles. On the other hand remains of fine structured oxidized biopolymers can lead to filter clogging, that is, reduce moisture exchange of sludge. Results: The experiment was carried out to find out the correlation between the doses of hydrogen peroxide and the resistivity value of sludge filtration. Discussion: Stabilized active sludge can be used as a fuel for boiler rooms, which in its turn will reduce natural gas consumption for the enterprise needs.
References
Voronov U.V., Skovlev S.V., 2006 Sewerage and wastewater treatment. – M.: MNBU, Association building universities (in Russian).
Treatment of oil wastewater / O.I. Semenova, N.O. Bublienko, T.L. Tkachenko [and others] // Scientific works NUFT, 2012, № 42, P. 53 – 60 (in Ukrainian).
Dolina L.F. Modern technology and facilities for oil wastewater treatment. Dnepropetrovsk: Continent, 2005, 140 p. (In Russian).
Biochemical purification of oil wastewater / Semenova O., Bublienko N., Smirnova J., Shylofost T. // «Aktualne problem nowoczesnych nauk-2012»: Materialy VIII miedzynarodowejnaukowi-praktycznejkonferencji, 7 – 15.06.2012. – Vol. 40. – Przemysl: 2012, P. 29–32.
Actual problems of oily wastewater treatment / V.N. Anatolsky, K.M .Prokopev, S.V. Oliferuk [and others] // P.H.A. Magazine (Plumbing. Heating.Air conditioning). 2007, N 6, P. 15–17. (In Russian).
Pavlyukh L.I., Matveeva O.L., Zubchenko O.M. Problems of sorption of cleaning oil wastewater // Materials of VII Intern. scien.-tech. conf. "Aviation-2006" 25 – 27sep. 2006, K.: NAU, 2006, P. 33–36. (In Ukrainian).
ATV-DVWK-M 368E 2003. Biological Stabilization of Sewage Sludge, German water and wastewater association (Former name ATV-DVWK, today DWA). Available at http://www.dwa.de, ISBN 978-3-937758-71-8, 2003.
Shcherbinin A.M. Experimental research on biosorption sewage treatment // Herald TNASU. 2003, N 2, P. 36–42 (in Russian).
Pashayan A.A.,Nesterov A.V. Analysis of existing methods for cleaning oil wastewater // The contribution of scientists and experts in nat. economy: materials of region. scientific and techn. conf. – Bryansk, 2005, P. 74–77. (In Russian).
Biotreatment of oily wastewater byrhamnolipids in aerated active sludge system / H.Z.Zhang, X.W. Long, R.Y. Sha [etal.] // Journal of Zhejiang University. Science, B, 2009, Vol. 10, N 11, P. 852–859.
