Structural measures to improve the efficiency of biological wastewater treatment plants

Anić Vučinić, Aleksandra and Vouk, Dražen and Zebić Avdičević, Maja (2010) Structural measures to improve the efficiency of biological wastewater treatment plants. = Structural measures to improve the efficiency of biological wastewater treatment plants. Strojarstvo, 52 (3). pp. 333-342. ISSN 0562-1887. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q4 (2010). Točan broj autora: 3.

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Abstract

The purpose of this paper is to test of certain structural measures to improve the efficiency of the biological wastewater treatment plants by preliminary adding of oxygen to fresh wastewater and rising of the pretreatment level. The paper compares the possibilities of increasing the oxygen content in wastewater by hydraulic jet, and by straining through a percolator with draught. The comparison is based on results obtained by testing on physical models in laboratory conditions. In both cases, several scenarios were analyzed, with different combinations of structural and hydraulic parameters (number of discharge outlets, outlet size, jet velocity and angle, size of percolator padding, etc.). Based on determined results of dissolved oxygen input (increment of dissolved oxygen concentration), the percolator was selected as the element of higher efficiency and applied on the pilot biological plant for treatment of sanitary wastewater. Based on determined efficiency of wastewater treatment during the period of two years, interpolation of the percolator as pretreatment of wastewater in biological treatment plants may be assessed as justified and useful solution.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Biological plants; Biological treatment plants; Biological wastewater treatment plant; Dissolved oxygen concentrations; Higher efficiency; Hydraulic parameters; Jet velocities; Laboratory conditions; Outlet size; Oxygen content; Physical model; Pre-Treatment; Sanitary wastewater; Structural measures; Biochemical oxygen demand; Dissolved oxygen; Hydraulics; Models; Reclamation; Sewage pumping plants; Wastewater; Wastewater treatment; Water treatment plants; Biological water treatment
Subjects: TECHNICAL SCIENCE > Civil engineering
TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 500 Department of Energy, Power Engineering and Environment
500 Department of Energy, Power Engineering and Environment > 540 Chair of Water and Environmental Engineering
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Citations JCR: 1 (14.09.2017.)
Quartiles: Q4 (2010)
Citations SCOPUS: 1 (14.09.2017.)
Date Deposited: 09 Apr 2015 12:49
Last Modified: 14 Sep 2017 12:53
URI: http://repozitorij.fsb.hr/id/eprint/3729

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