IMPROVEMENT OF WASTEWATER TREATMENT TECHNOLOGY THE OILSEEDS PROCESSING ENTERPRISES

Authors

  • D. Kulikova National Technical University «Dnipro Polytechnic»

DOI:

https://doi.org/10.31471/2415-3184-2021-2(24)-102-111

Keywords:

factories producing vegetable oils, wastewater, fats, suspended solids, organic pollution, aerated grease traps, coagulants, water quality standards

Abstract

The dangerous wastewater pollutants from oilseeds processing enterprises are indicators of organic contamination and the content of a large amount of fats and suspended substances. Fats and organic wastewater pollutants which enter the centralized sewage systems of the settlements form deposits on the inner wall of the pipes, what disrupt the uninterrupted and efficient operation of sewage network. That is why the water utilities establish strict requirements for the quality composition of wastewater which are discharged into the municipal sewer network from enterprises and organizations. The purpose of the paper is to improve the technology of wastewater treatment from oilseeds processing enterprises through the use of aerated grease traps and coagulants to reduce the fat content to standards that meet the requirements for the wastewater discharge from these industrial facilities into the centralized sewage systems of the settlements. The proposed wastewater treatment facility performs three main functions: extraction of the fat dissolved in water and sediments, which are in a suspended state; reduction of the amount of organic pollution and bottom sediments; the absence of the appearance of putrid odors. The introduction of the proposed technology for treatment of fat-containing wastewater from oilseeds processing enterprises allow to significantly reduce the content of fats up to 10 mg/dm3 that consistent with standards of the discharge of wastewater of these enterprises into the municipal sewage networks and treatment facilities of the settlements. In addition, in wastewater after purification according the proposed technology, the content of suspended solids and organic pollutants is reduced. This will allow preventing the formation of fatty deposits on the walls of pipes, ensuring the uninterrupted and efficient operation of the sewage networks and treatment facilities at the stations of the biological treatment of municipal wastewater.

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Published

2022-02-07

How to Cite

Kulikova Д. В. (2022). IMPROVEMENT OF WASTEWATER TREATMENT TECHNOLOGY THE OILSEEDS PROCESSING ENTERPRISES. Ecological Safety and Balanced Use of Resources, (2(24), 102–111. https://doi.org/10.31471/2415-3184-2021-2(24)-102-111

Issue

Section

ENVIRONMENTAL PROTECTION TECHNOLOGIES