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CASE STUDY 1: ALQUEIDΓO WASTEWATER TREATMENT PLANT

Type of Effluent: Urban Wastewater.

Process: Activated Sludges, Extended Aeration variant.

Equivalent Population: circa 1000 EI, project horizon.

(courtesy ΑGUAS DA FIGUEIRA, S.A.)

 

UNTREATED WASTEWATER TREATED WASTEWATER
Data pH TSS COD BOD5 pH TSS COD BOD5
28/8/02 – – – – 7,6 68 56,9 27,8
30/9/02 – – – – 7,7 24 115 62,5
1/10/02 – – – – 7,7 83 55,3 22,2
29/10/02 – – – – 7,4 22 93 16,7
28/11/02 – – – – 7,2 26 79 38,8
20/12/02 – – – – 7,3 37 40 5
14/1/03 8 64 117 56 7,3 13 40 5
11/2/03 7,2 276 254 183 7,3 22 44 22
25/3/03

–

 604 974 262

–

 31 67 18
20/5/03 7,1 500 1676 574 7,6 84 234 55
23/7/03 7,7 396 691 296 7,8 91 214 56
26/8/03 7,1 344 660 252 7,9 252 399 139
23/9/03

–

 560 753 333

–

 80 83 15
21/10/03 7,9 198 476 266 7,3 10 86 19
18/11/03 8 174 428 244 7,8 58 152 68
16/12/03 8,1 118 190 97 7,3 21 43 15
20/1/04 7,8 110 292 99 7,5 25 40 18
17/2/04 7,8 280 830 425 7,5 15 66 10
30/3/04 9,2 500 1068 435 7,7 12 46 18
21/4/04 7,7 68 176 81 7,6 18 40 18

 

 

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Last updated - 2006/03/18

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