The paper presents the reliability of the sewage treatment plant operation for Tuchów commune. The research was carried out from January 2005 to December 2006. The following sewage pollution ratios were physico-chemically analyzed: BOD5, CODCr, total suspended solids. In order to define the proper treatment plant's operation, the reliability coefficient was calculated (RC) for each of the tested indexes. The empiric reliability was presented. The amount of transgresions of the admissible index values presented in the water-law permis-sion was described. Moreover, the efficiency of the ratios' decrease in the tested period was defined.The carried out research showed the high efficiency of the pollutants' amount decrease: BOD5 - 90,7%, CODCr - 86,6%, total suspended solids - 90,5%. The calculated Reliability Coefficients RC of the analyzed indexes amounted respectively: for BOD5 - 0,52, for CODCr - 0,31 and for total sus-pended solids 0,62. ...
The paper presents the efficiency of the sewage treatment based on the ex-ample of the sewage treatment plant for Krynica-Zdrój. The research was carried out from January 2006 to December 2007. The following sewage pollution indexes were physico-chemically tested: BOD5, CODCr, total suspended solids, general ni-trogen and general phosphorus. The reliability coefficient (RC) was calculated for each of the analyzed indexes. The amount of the transgressions of the admissible index values in relation to the water law permission was defined. Moreover, the ef-fectiveness of the indexes' decrease in the tested period was analyzed. Additionally the amount of sewage flowing into the treatment plant in each months of the tested period was presented. The carried out research showed the high efficiency of the pollutants' removal. The average reduction of the tested indexes balanced on the level of: BOD5 - 95,03%, CODCr - 90,98%, total suspended solids - 94,76%, gen-eral nitrogen - 79,79%, general phosphorus - 63,5%. ...
The paper presents the efficiency of the sewage treatment based on the ex-ample of the sewage treatment plant in Dobczyce. The resarch was based on the analysis of 44 raw sewage and treated sewage from January 2007 to December 2010. Values of five selected pollution indexes were analyzed: BOD5, COD, total suspended solids, general nitrogen and general phosporus. The amount of the transgressions of the admissible index values in relation to the water law permis-sion was defind. The effectiveness of the indexes' decrease In the tested period was analyzed. The carried out research showed the high efficiency of the pollutants amount decrease: BOD5 - 98,9%, COD - 97,6%, total suspended solids - 97,6%, general nitrogen - 89,4%, general phosporus - 97,6%. ...
