Assessment of the working of sewage treatment plant type SBR in Sterkowiec-Zajazie

In study presented of results research physico-chemical sewage in years 2002– 2004 in sewage treatment plant type SBR in place Sterkowiec-Zajazie in province małopolska. The Treatment plant started in 2001 year and expensed of 3,7 million PLN. Design of capacity in treatment plant is Q=600 m3∙d-1, however in during of research to treatment plant in flu about 150 m3∙d-1. About 8% sewer was drive tanker car with cesspool. Research concern to count size reduction in percent selects indexes pollution for example: BOD5, COD, total suspension witch primary group and ammonia nitrogen and total phosphates witch eutrophic group. Middle of value BOD5 in sewage raw was 401,1 mgO2∙dm-3, however in clean sewer was 15,23 mgO2∙dm-3. Middle of value COD in sewage raw was 660,74 mgO2∙dm-3, however in clean sewer was 75,43 mgO2∙dm-3. Middle of value total suspension in sewage raw was 207,51 mg∙dm-3, however in clean sewer was 22,17 mg∙dm-3. Middle of value ammonia nitrogen in sewage raw was 161,34 mgNNH4∙dm-3, however in clean sewer was 3,84 mgNNH4∙dm-3. For total phosphates middle of value in raw sewer was 19,71 mgP∙dm-3, and in clean sewer 4,67 mgP∙dm-3. Reduction of indexes with primary group and eutrophic group was high. Middle for BOD5 was ...