Ecotoxicity of Wastewater in the Czech Republic

Abstract

The presented article deals with monitoring the ecotoxicity/toxicity of wastewater flowing into selected wastewater treatment plants in the Czech Republic. The sewage treatment plant was in a state of disrepair and was unable to treat the incoming sewage. In this critical period, the parameters – BOD5, CHSKCr, NL, N-NH4, N-inorg, N-total, P-total, RAS and pH were monitored at the inflow to the WWTP. BOD5, CHSKCr, NL, N-NH4, N-NO3, N-NO2, N-inorg, N-total, P-total and RAS were also monitored at the effluent from the wastewater treatment plant. Ecotoxicity (fish, barnacles, algae) and toxicity (Vibrio fischeri) were monitored at the inflow and outflow. The article considers the effects of wastewater ecotoxicity on individual wastewater treatment processes.The presented article deals with monitoring the ecotoxicity/toxicity of wastewater flowing into selected wastewater treatment plants in the Czech Republic. The sewage treatment plant was in a state of disrepair and was unable to treat the incoming sewage. In this critical period, the parameters – BOD5, CHSKCr, NL, N-NH4, N-inorg, N-total, P-total, RAS and pH were monitored at the inflow to the WWTP. BOD5, CHSKCr, NL, N-NH4, N-NO3, N-NO2, N-inorg, N-total, P-total and RAS were also monitored at the effluent from the wastewater treatment plant. Ecotoxicity (fish, barnacles, algae) and toxicity (Vibrio fischeri) were monitored at the inflow and outflow. The article considers the effects of wastewater ecotoxicity on individual wastewater treatment processes.