The Impact of Treated Sewage on Water Quality in Mordarka Stream
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Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Karolina Kurek   

Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie, al. Mickiewicza 24/28, 30-059 Kraków, Poland
Publish date: 2019-01-01
J. Ecol. Eng. 2019; 20(1):39–45
This paper present analysis and evaluation of the impact of clean sewage on the water in river Mordarka, in the period 2012-2015. The analysis conducted based on collected and statistical research: amount and composition of purified sewage discharged to the receiver. The following pollution index were tested: total suspended solids, BOD5, COD, total nitrogen and total phosphorus. Based on obtained results concluded that amount of purified wastewater discharge to river Mordarka, didn't do degradation the quality of water in that period of time. Moreover the level of indicators: total suspended solid, BOD5 and COD didn't exceeded the limit values from the regulation, that was confirmation of effective protection of water quality in river Mordarka. However, because of the high concentration of biogenic compounds in purifying wastewater effluents, the river is prone to eutrophication process.