Experimental research into the process of biological treatment of wastewater with the use of the membrane bio­reactor

Tamara Shevchenko, Irina Chub, Dmitry Didrikh

Abstract


Effectiveness of operation of the membrane bioreactor (MBR) for wastewater treatment with the use of the biological method was considered. The pilot studies were carried out in the test membrane bioreactor, manufactured by company "Alfa Laval" (Denmark). The process of biological treatment of wastewater using the membrane bioreactor makes it possible to intensify the operation of biological treatment plants due to the lack of facilities for settling the sewers, an increase in the dose of active sludge up to 12–13 g/l; the process of deposition is replaced with filtration, washing of membrane modules can be carried out without emptying the tanks and without taking modules out of the tanks. In the process of testing of the membrane bioreactor, based on the module plant, manufactured by company "Alfa Laval" (Denmark) for treatment of domestic wastewater, the treatment mode that meets the requirements for discharge was achieved. Treatment effectiveness by basic indicators was: COD – 93 %, BOD5 – 99 %, suspended substances – 98.5 %, ammonium nitrogen – 98.5%. Operation efficiency of MBR as for nitrates amounted to 89 % after adjustment of reagent’s dose (40–50 mg/l) and the oxygen dose in the nitrification zone (2–3 mg/l). Efficiency of 98.6% for phosphates was achieved after the introduction of the reagent aluminum sulfate with the dosage of 40–50 mg/l.

The study conducted has made it possible to obtain the consistent operation mode of the MBR with ensuring effective process of wastewater treatment. Dependences of wastewater treatment efficiency on the MBR as for major contaminants (COD, BOD5, nitrogen compounds and phosphorus) were shown. This enables meeting the strict requirements for wastewater discharge into water bodies and decreasing the cost value of the treatment through a decrease in power consumption. The mechanism of the MBR operation under conditions of treatment of actual wastewater, which allows determining the conditions of the use of the MBR in the technology of the biological wastewater treatment was studied.


Keywords


biological treatment; membrane bioreactor; microfiltration; nitrogen; phosphorus; nitrification; denitrification; reagent

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References


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GOST Style Citations


Vergun O. M. Analysis of the actual factors of deterioration of the quality of drinking water supply in the context of national security of Ukraine. Analytical note // National Institute for Strategic Studies. URL: http://www.niss.gov.ua/articles/1037/

Johansson T. Application of membrane bioreactors in the pulp and paper industry // Department of Earth Sciences, Geotryckeriet, Uppsala University, Uppsala, 2012. 94 р.

Visvanathan C., Ben Aim R. Visvanathan C. Membrane Bioreactor Applications in Wastewater Treatment. URL: https://www.researchgate.net/publication/237597440_Membrane_Bioreactor_Applications_in_Wastewater_Treatment

A novel insight into membrane fouling mechanism regarding gel layer filtration: Flory-Huggins based filtration mechanism / Lei Q., Zhang M., Shen L., Li R., Liao B.-Q., Lin H. // Scientific Reports. 2016. Vol. 6, Issue 1. doi: 10.1038/srep33343 

Murashev S. V., Solovyova E. V., Shilova N. K. Experience of approbation of wastewater treatment technology based on membrane bioreactor // Water supply and sanitary engineering. 2016. Issue 2. P. 52–57.

Aerobic Membrane Bioreactor for Wastewater Treatment – Performance Under Substrate-Limited Conditions / Delgado S., Villarroel R., Gonzalez E., Morales M. // Biomass – Detection, Production and Usage. 2011. doi: 10.5772/17409 

Membrane bioreactor: Applications and limitations in treating high strength industrial wastewater / Mutamim N. S. A., Noor Z. Z., Hassan M. A. A., Yuniarto A., Olsson G. // Chemical Engineering Journal. 2013. Vol. 225. P. 109–119. doi: 10.1016/j.cej.2013.02.131 

Jyoti J., Alka D., Kumar S. J. Application of Membrane-Bio-Reactor in Waste-Water Treatment: A Review // International Journal of Chemistry and Chemical Engineering. 2013. Vol. 3, Issue 2. P. 115–122.

From R&D to application: membrane bioreactor technology for water reclamation / Lay W. C. L., Lim C., Lee Y., Kwok B. H., Tao G., Lee K. S. et. al. // Water Practice and Technology. 2017. Vol. 12, Issue 1. P. 12–24. doi: 10.2166/wpt.2017.008 

Anaerobic membrane bioreactors – a mini review with emphasis on industrial wastewater treatment: applications, limitations and perspectives / Dvořák L., Gómez M., Dolina J., Černín A. // Desalination and Water Treatment. 2015. Vol. 57, Issue 41. P. 19062–19076. doi: 10.1080/19443994.2015.1100879 

A Novel Electrochemical Membrane Bioreactor as a Potential Net Energy Producer for Sustainable Wastewater Treatment / Wang Y.-K., Sheng G.-P., Shi B.-J., Li W.-W., Yu H.-Q. // Scientific Reports. 2013. Vol. 3, Issue 1. doi: 10.1038/srep01864 

Nechitailo N. P. Application of micro- and ultrafiltration technology at the stages of biological treatment and post-treatment of wastewater // Building, Material Science, Mechanical Engineering: Starodubov Readings. 2015. Issue 80. P. 216–221.

Trunov P. V. Features of the process of wastewater treatment in submerged membrane bioreactors // Municipal economy of cities. 2010. Issue 93. P. 133–137.

Serbov V. O., Motronenko V. V. Purification of industrial waste water using membrane bioreactors // International scientific magazine "Internauca". 2016. Issue 12 (1). P. 124–128.

HELCOM Copenhagen Ministerial Declaration Taking Further Action to Implement the Baltic Sea Action Plan – Reaching Good Environmental Status for a healthy Baltic Sea. Denmark, 2013. 19 р. URL: http://www.helcom.fi/Documents/Ministerial2013/Ministerial%20declaration/2013%20Copenhagen%20Ministerial%20Declaration%20w%20cover.pdf

Quantitative chemical analysis of waters. Method of measuring the contents of suspended solids and the total content of impurities in samples of natural and treated wastewater by gravimetric method. HDPE F 14.1:2.110-97. URL: http://www.alppp.ru/law/okruzhayuschaja-sreda-i-prirodnye-resursy/ispolzovanie-i-ohrana-vod/6/kolichestvennyj-himicheskij-analiz-vod--metodika-vypolnenija-izmerenij-soderzhanij-vzveshe.html

Reduction of electricity consumption in public water supply and sanitation systems // Electronic Journal of Energy Service Company "Environmental Systems". 2004. Issue 10. URL: http://journal.esco.co.ua/2004_10/art47.htm



DOI: https://doi.org/10.15587/1729-4061.2018.133784

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Copyright (c) 2018 Tamara Shevchenko, Irina Chub, Dmitry Didrikh

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ISSN (print) 1729-3774, ISSN (on-line) 1729-4061