Investigation of Seasonal Heavy Metal Contents in the Activated SludgeWastewater Treatment Plant: Case Study

Evropejskij Issledovatelʹ

关键词: activated sludge;    bioaccumulation;    heavy metal;    independent t-test;    sewage sludge.;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this study, composite sewage sludge samples were taken from the drying beds of the Elazig City Activated Sludge Treatment Plant in order to investigate the seasonal heavy metal concentrations in the samples. According to the results of the analysis, the acid extractable annual heavy metal concentrations of the effluent sludge coming from the drying beds were found as Fe >Zn> Mn >Cu >Cr >Ni >Pb> Co> Cd. İron concentration in the sewage sludge was found to be the highest where Cd was detected in the lowest concentration value. According to the independent t-test applied to the summer and winter pollution loads of the sewage sludge, statistical differences for the average valueswere observed between the groups for the iron, copper, and cadmium contents (p<0.05). On the other hand, no statistical differences were observed for the average values between the groups for the iron, zinc, manganese, chromium, nickel, lead, and cobalt contents (p>0.05).

【 授权许可】

Unknown