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UDC 628.35:66.081.63

Murashev S. V., Solov'eva E. V., Shilova N. K.

The experience of wastewater treatment technology approbation  on the basis of a membrane bioreactor

Summary

The results of testing two low-capacity pilot plants for wastewater treatment with the use of different process flow schemes: with a membrane bioreactor (MBR) and a secondary settling tank are presented. MBR technology provides for combining micro- and ultrafiltration with aerobic biological treatment of wastewater. On the basis of the obtained experimental data it is shown that the plant with the membrane bioreactor provides for higher treatment performances, chemical-free advanced phosphorus removal, sustained quality of discharged effluent and high efficiency of removing substances resistant to oxidation. The main drawback of the MBR technology is the need for regeneration of membranes with high efficiency that additionally complicates the process control. The data on the membrane throughput capacity varying depending on the bioreactor running time and efficiency of chemical regeneration of membranes is presented.

Key words

wastewater , water disposal , membrane bioreactor , local treatment facilities , chemical-free treatment

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REFERENCES

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