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NEW PROCESS FOR
IMPROVEMENT OF
CONTAMINATED
SEDIMENTS
BY SUCCESSION
OF MICRO-BIOTA

2nd
INTERNATIONAL
CONFERENCE on
COTAMINATED
SEDIMENTS.
Rotterdam
Netherlands.
September 7-11
1997

CONCLUSIONS.

These practical tests proved that a new process for improving contaminated sediments by artificially controlling the succession of micro-biota is effective in improving the quality and quantity of highly-suspended organic contaminated sediments.

The new system will make it possible to return to the bottom of water the improved sediments which have an activated-sludge self-purifying function and contain a large amount of oxygen, and to supply oxygen into a seabed where aeration is impossible. Also, using the improved sediments, it will be possible to create a beach or marsh and to restore a variety of ecosystems and self-purifying functions. This process will permit the environment in water areas (sea, lake, wetland, dam, marsh, fishing ground, etc.) to be restored without using chemicals, without producing wastes and without changing the natural Submarine/water bottom topography.

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