Estimation of Per Capita Loading and Treated Wastewater Quality Index in Sharkia Governorate, Egypt

Faculty Engineering Year: 2022
Type of Publication: ZU Hosted Pages:
Authors:
Journal: Journal of Ecological Engineering Journal of Ecological Engineering Volume:
Keywords : Estimation , , Capita Loading , Treated Wastewater , Quality    
Abstract:
Monthly reports (from June 2017 to May 2018) of twenty-one wastewater treatment plants in Sharkia were evaluated  for  the  following  parameters:  temperature,  pH,  total  dissolved  solids  (TDS),  total  suspended  solids  (TSS),  chemical  oxygen  demand  (COD),  biochemical  oxygen  demand  (BOD),  nitrate  (NO ),  oil  and  grease  (O&G)  and  Dissolved Oxygen (DO) values. The first aim of this study was to estimate the main wastewater per capita pollution generation per day (PCPL) and it was found that the 90 th 3  percentile PCPL for TSS, COD, BOD, NO  and O&G  were  equal  to  57.42,  91.59,  59.13,  1.64  and  12.39  (g/capita/day)  respectively.  The  second  aim  was  to  assess  the  performance  of  the WWTPs  in  the  governorate,  by  calculating  of  the  wastewater  quality  index  (WWQI)  of  each  plant and for the entire governorate, which shows that 2 WWTPs give a good performance, 9 WWTPs give a fair  performance, 9 WWTPs give a marginal performance and 1 WWTP is in bad condition, the average performance  all  over  the  governorate  is  considered  marginal. A  simple  empirical  formula  has  been  established  to  be  used  for  calculation of the WWQI based on the tested parameters using the multiple linear regression and found to be very  effective in predicting the WWQI for the WWTPs.
   
     
 
       

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