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BIOLOGICAL PRETREATMENT OF WASTEWATER ENTERING IN GLINA-BUCHAREST TREATMENT PLANT, A PROBLEM STILL TO BE SOLVED

Bogdan Alexandru Radulescu

First published: 2021-12-20https://doi.org/10.5593/sgem2021v/3.2/s12.12View metrics

Abstract

Glina Station is a project for the treatment of wastewater from the sewerage of Bucharest. The sewerage of the entire city has always flowed into the Dambovita River. Currently, only partially Stage I is carried out, through which the mechanical treatment of about 60% of the city's wastewater is carried out. The paper presents a solution for biological pretreatment of wastewater to validate the use of ultraviolet waves for biological disinfection but also for the treatment of specific non-synthetic pollutants from water. It is estimated the impact of pollutant emissions on water resources in the area. The effects of the specific measures that water users must apply to achieve the environmental status, modeling emissions of organic substances, priority substances and specific pollutants are identified. Natural background levels in these transported bodies of water (water, sediment and suspended solid materials), priority substances (heavy metals: Cd, Ni, Pb and Hg) and specific non-synthetic pollutants (Ca, Zn, Cu, Cr, phenols, and others) depending on the allowable base values were determined. The technical solution for biological water pretreatment is presented briefly. In the third tank the homogeneous mixture is made. Next, the physical-chemical reactor and the installation for introducing the dosing and preparation reagents until the final water purification are realized. The main advantages of the pre-treatment of wastewater and selection of the most suitable substances are mentioned also.

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Title
BIOLOGICAL PRETREATMENT OF WASTEWATER ENTERING IN GLINA-BUCHAREST TREATMENT PLANT, A PROBLEM STILL TO BE SOLVED
Authors
Bogdan Alexandru Radulescu
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Water Resources. Forest, Marine and Ocean Ecosystems
Publisher
STEF92 Technology
Year
2021
Pages
75-82
SWS Citekey
Radulescu202112101108
ISSN
1314-2704
ISBN
978-619-7603-32-3
Language
en
Publication type
Conference Paper
Keywords
Chemical analysisDecontaminationEnvironmental engineeringGreen CleaningWastewater
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