Civil Engineering Reference
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A submerged wall at the end of the basin can retain any light fluids, which can then be
skimmed. The outflow channel should be fitted with a toothed weir to ensure that flow
comes from the entire width of the basin [62]. A chamber with measuring instruments
should be provided to check the cleaned water and measure the quantity.
Figure 5-12
Water treatment and discharge above ground [62].
5.2.5 Sealing groundwater
Beside the collection and drainage of groundwater during the construction period, it is
also possible to undertake sealing measures, which could involve grouting or ground
freezing.
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