PHYSICOCHEMICAL MONITORING AND PERFORMANCE EVALUATION OF SBR MUNICIPAL WASTEWATER TREATMENT

Abstract

Hisarya town is one of the famous Bulgarian resort with mineral springs and SPA-centers attracting  thousands  of  tourists  where  is  installed  one  of  the  newly  wastewater  treatment  plants (WWTP) designed on the base of sequencing batch reactor (SBR) technology. In recent years, SBR has been applied as an efficient technology for wastewater treatment. Monitoring and control of SBR is a very attractive field of research nowadays. Present study are dealt with monitoring of physicochemical characteristics viz. BOD₅, COD, suspended solids (SS), total nitrogen (TN) and total phosphorus (TP) and  performance  evaluation  of  SBR  municipal  wastewater  treatment  at  WWTP-Hisarya.  Significant reduction  (p<0.05)  in  the  physicochemical  characteristics  of  the  SBR  treated  wastewater  was established.  The  average  removal  of BOD₅ (95.1±0.6 %),  SS  (95.1±0.6 %), COD  (93.2±0.7 %), TN (80.3±8.0  %)  and  TP  (53.4±7.2  %)  were  recorded.  The values  obtained  of  physicochemical parameters in treated wastewater were considerably  below permitted emission limits which indicate that  WWTP-Hisarya is  working  perfectly.  Thus  it  is  helpful  in  the  control  of the  pollution  of  “Blue River” as a discharging water body.