Tertiary wastewater treatment using bioreactors-clarifiers

Evgeniy Voitov,Victor Kravchenko,Tamara Khalturina,Yuri Skolubovich,D Rudoy,V Murgul

doi:10.1051/e3sconf/201913501055

Abstract

The use of technical oxygen instead of air in biological treatment plants can increase their oxidizing ability. Bioreactor-clarifier is a new technical device for tertiary wastewater treatment with the use of oxygen. The design, operation principle and research results of the bioreactor-clarifier for tertiary treatment of urban wastewater are given The use of bioreactors-clarifiers for tertiary treatment of urban wastewater using dissolved technical oxygen allows intensifying the process of biochemical oxidation of organic substances in a contact weighed load and increasing the efficiency of wastewater treatment by BOD and other components.

Highlights

The issue of using treated domestic wastewater in industrial water supply systems is an urgent one due to the shortage of tap water
One way to solve this problem is to introduce an additional stage of wastewater treatment after traditional mechanical and biological treatment, so-called tertiary treatment
Anaerobic zones may appear in the filter loading during the filter cycle and the quality of the treated water will deteriorate, since the oxygen content in the source water is limited. The purpose of these studies is to develop and test a bioreactor of a new design, which has several advantages compared to existing filters of tertiary treatment of urban wastewater

Summary

Introduction

The issue of using treated domestic wastewater in industrial water supply systems is an urgent one due to the shortage of tap water. Anaerobic zones may appear in the filter loading during the filter cycle and the quality of the treated water will deteriorate, since the oxygen content in the source water is limited The purpose of these studies is to develop and test a bioreactor of a new design, which has several advantages compared to existing filters of tertiary treatment of urban wastewater. The use of technical oxygen instead of air in biological treatment plants allows increasing their oxidizing ability and the specific oxidation rate by BOD by 5-6 times [3] This technology has not been implemented in filtration facilities of tertiary wastewater treatment

Materials and methods

Results

Discussing