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SEAREN
SDI REDUCTION (O&G)
SDI reduction:
from 10 to 2
The SDI (Silt Density Index) is used to determine the fouling and clogging potential of particulate and fine colloidal materials that may be present in the feed-water.
The Oil & Gas industry typically uses feed-water with SDI<3.
SDI reduction in sea water vs “conventional” technologies
Data: IFREMER – TOTAL 2014
De-Oiling
Initial discharge water
99% water reclamation
95% of oil extracted into 1% of volume
Results
Parameters | Upstream concentration (mg/L) | Downstream concentration (mg/L) | Removal (%) |
---|---|---|---|
PT | 31,6 | 2,72 | 91 |
NTK | 270 | 108 | 60 |
NGL | 270 | 108 | 60 |
BOD5 | 5291 | 851 | 84 |
COD | 9980 | 1626 | 84 |
TSS | 4400 | 370 | 92 |
Operation
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2 VAL 900
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Wastewater treatment: 50 to 100m3/day
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1,000 kg fat per day
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TSS inlet: 4 to 6 g/l
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Collected sludge: 1 to 2% of volume
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Sludge concentration: 140g/L = 14%
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