Research of filtration and energy parameters of membrane bioreactors

Nikolay Makisha,G.P Negreanu,M Tazerout,N.V Vlăduţ

doi:10.1051/e3sconf/202018004001

Nikolay Makisha, G.P Negreanu + Show 2 more

Open Access

https://doi.org/10.1051/e3sconf/202018004001

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Abstract

Membrane bioreactors nowadays are intensively applied in wastewater treatment worldwide. The paper refers to a research, which goal was to evaluate the optimal parameters of membrane bioreactor performance. A focus was given to a part of the research that considered operation of side-stream membrane bioreactor under pressure of 0.2 MPa and variable amount of backwashes. There were three types of feed water investigated with mixed liquor suspended solids concentrations of 1.6, 2.5 and 7 g/L, respectively. The article provides results of permeate production and their processing to obtain specific energy consumption for each combination of operation parameters.

Highlights

Application of membrane bioreactors for wastewater treatment, which became well known in 1980s, is a matter of a significant interest from viewpoint of research and practical implementation [1,2]
The permeate production dropped 3.2 times when the mixed liquor suspended solids (MLSS) value was risen up to 7 g/L comparing to MLSS=1.6 g/L
That may signal that under operation pressure of 0.2 MPa the permeate production is sharply depended on the growth of MLSS

Summary

Introduction

Application of membrane bioreactors for wastewater treatment, which became well known in 1980s, is a matter of a significant interest from viewpoint of research and practical implementation [1,2]. The experience in operation of MBR in Russian Federation is not so solid, and these blanks and gaps should be filled [5]. It considers almost every aspect of MBR – contamination removal from wastewater (with typical for Russia values of pollutants), energy efficiency of the process, fouling mitigation, operation conditions and many others [6,7]. If to apply MBRs for reconstruction of small wastewater treatment plants (WWTP) the facilities’ dimensions always matter and dimensions of auxiliary tanks in particular [8,9] In this viewpoint side-stream membrane bioreactors can be focused on within a research as a probable option if to place them nearby in portable containers (and without auxiliary capital construction) [10]

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