Comparison of Efficiency of Different Type Systems for Wastewater Treatment

Analele Universităţii din Oradea, Fascicula Protecţia Mediului - Vol. XXI, 2013

10 Pages Posted: 18 Nov 2015

See all articles by Emilia Valentina Pantea

Emilia Valentina Pantea

Romanian Academy - Institute for World Economy

Romocea Tamara

University of Oradea

Ghergheles Carmen

University of Oradea

Ioana Blaj

University of Oradea

Date Written: November 17, 2014

Abstract

This study has the purpose to evaluate the efficiency of different waste water treatment plant. The following wastewater treatment systems were studied: activated sludge, plant, physicochemical treatment, biodisc and biofilter. Waste water samples were collected from treatment units and analysed for the major water quality parameters, such as biological oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), total nitrogen (Nt) and phosphorus (Pt). The efficiency of each unit in treating the pollutants was calculated. In this paper we found that from the four types of municipal waste water treatment systems activated sludge basins have provided most removal efficiency BOD5 (92.09%) and phosphorus (87.41%). Municipal wastewater treatment efficiency for biodisc had the highest values for the parameters TSS (96.9%),% COD (91.6), NT (93.5%), but treatment efficiency for phosphorus removal (60.5%) was below the legal limit recommended (Directive 98/15/EEC). The maximum removal of phosphorus was for activated sludge plant (87,41%) and minimum removal efficiency was 13,3% for biofilters. For nitrogen, the higher efficiency was obtanined in biodiscs tehnology (93,5%) and the physico-chemical tehnology.had the lowest efficiency. (1,2%).

Keywords: waste water treatment plant (WWTP), biodisc, biofilter, physico-chemical treatment, activated sludge, efficiency

JEL Classification: A10

Suggested Citation

Pantea, Emilia Valentina and Tamara, Romocea and Carmen, Ghergheles and Blaj, Ioana, Comparison of Efficiency of Different Type Systems for Wastewater Treatment (November 17, 2014). Analele Universităţii din Oradea, Fascicula Protecţia Mediului - Vol. XXI, 2013. Available at SSRN: https://ssrn.com/abstract=2692007

Emilia Valentina Pantea (Contact Author)

Romanian Academy - Institute for World Economy ( email )

Calea 13 Septembrie nr. 13
Sector 6
Bucharest, 050711
Romania

Romocea Tamara

University of Oradea ( email )

Universitatii nr. 1
Oradea, Bihor 410087
Romania

Ghergheles Carmen

University of Oradea ( email )

Universitatii nr. 1
Oradea, Bihor 410087
Romania

Ioana Blaj

University of Oradea ( email )

Universitatii nr. 1
Oradea, Bihor 410087
Romania

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