IMPROVED CLARIFICATION OF SUCTION DREDGING WATER
The dredging of shipping lanes, harbors and other sites, especially where this involves soft material, leads to the suspension of solid matter in the water. To allow this to settle, material removed by suction dredging is usually deposited on the land or in basins only partly in the water. From these depositories, the clarified water is conducted back into the water body proper. This paper examines the use of various chemicals to improve the precipitation of soil particles contained in dredged water. When the amounts of water to be handled in a dredging operation become very large, the choice of flocculant and its optimal dosage become matters of considerable economic significance. The correct use of chemicals can enable operation of the process with smaller basin volumes, which will result in reduced construction costs.
- Conference paper
- Ratilainen, M
- International Navigation Congress, 27th
- Location: Osaka, Japan
- Date: 1990-5-20 to 1990-5-26
- Publication Date: 0
- Pagination: 9p.
- TRT Terms: Chemicals; Dredging; Purification; Sedimentation; Settlement (Structures); Water
- Subject Areas: Maintenance and Preservation; Marine Transportation;
- Accession Number: 00659499
- Record Type: Publication
- Source Agency: Maritime Technical Information Facility
- Files: TRIS
- Created Date: Jul 21 1994 12:00AM