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Concept of a New Technological System of a Biological Reactor in a Wastewater Treatment Plant in Nowy Targ in Terms of the Current Quantity and Quality of Wastewater – Case Study

Nowobilska-Majewska Elwira, Bugajski Piotr Michał

Journal of Ecological Engineering

2021

Vol. 22, nr 5

39--46

The objective of the work was to design a biological reactor in the Bardenpho system as an alternative to the SBR biological reactor in the wastewater treatment plant in Nowy Targ. The technological system of the newly designed biological reactor was adapted to the existing reinforced concrete structure. The design of individual nitrification, denitrification, predenitrification and dephosphatation chambers was developed on the basis of actual data on the volume of influent sewage and its pollutant loads. The newly designed technological system of the Bardenpho type biological reactor guarantees high efficiency in the elimination of organic and biogenic compounds from wastewater. Within operational guidelines, it is proposed to gradually eliminate the inflow of foreign waters to the sewage system by removing the illegally connected roof gutters. Moreover, it is recommended to strictly control the volume of the fur-plant industrial sewage discharged into the sewage system.

Concentrations of organic and biogenic pollutants in domestic wastewater after mechanical treatment in the aspect of biological reactor design

Bugajski P., Pawełek J., Kurek K.

Infrastruktura i Ekologia Terenów Wiejskich

2017

nr IV/3

1811--1822

The aim of the study was to determine the value and concentration indicators of BOD5, COD and general nitrogen in domestic wastewater after mechanical treatment, which should be considered in the design of the activated sludge reactor. Ninety-nine samples of raw wastewater and after mechanical treatment were then collected and physicochemical analysis was carried out. The quantity of pollutants in the raw wastewater was verified to determine if this was domestic wastewater. The next stage of the analysis included the definition of the characteristic quantity of the analysed indicators in wastewater after mechanical treatment, which should be taken into account while calibrating computer programs supporting the design of biological reactor chambers. A detailed analysis led to the conclusion that mean values for BOD5 - 300 mgO2·dm-3, for COD - 500 mgO2·dm-3and for total nitrogen 50 mgN·dm-3 should be applied. The work also determined the susceptibility of wastewater after mechanical treatment to the decomposition of organic and biogenic compounds.