Definition of dewater in English:



  • 1 Drain (a waterlogged or flooded area)

    ‘a study will determine the impact of dewatering in the Humboldt Basin area’
    • ‘It was clear that the site would have to be dewatered before further work could be conducted.’
    • ‘The road travels through soft areas that require extensive dewatering and stabilization with imported materials.’
    • ‘The gallery is dewatered by two pumping stations and via the middle access.’
    • ‘Because these specimens were collected after the mine had been flooded and subsequently dewatered, the rhombohedra show considerable etching caused by acidic mine waters.’
    • ‘Here in Florida, any road construction requires the entire site be dewatered.’
    • ‘These were recovered after the upper level of the Champion mine was dewatered by Nordlander and his partner and some minimal mining on the vein took place.’
    • ‘Construction dewatering was accomplished by using monitoring wells to confirm performance.’
    • ‘We had asked the person whose job it was to dewater both worksite and access ways, to do so…’
    • ‘After dewatering, installation of electricity, telephone and rock and cable bolting the mine was ready to take its first visitors.’
    • ‘The saga of the Bristol mine relates to its death in 1934-when it closed during the Depression - and its rebirth in 1948-when new owners dewatered the mine and began production.’
    • ‘This company needed the remainder of that year just to dewater the mine.’
    • ‘He said the monitoring committee, which includes Dúchas, examined dewatering of the area and the effect this would have on the fen.’
    • ‘It dewatered the mine and did some mining and smelting on the site.’
    • ‘Within only a few hours all the shafts had been dewatered and mining at the lower levels could continue, providing work for additional men.’
    • ‘Millions of dollars were spent in dewatering the Centennial mine, deepening both the No.3 and No.6 shafts, and constructing a pilot concentrator plant that milled ore from June 1975 to October 1976.’
    • ‘It was hard to get suction because our pump is designed for dewatering something on our ship, not a little boat like this.’
    • ‘‘Then we put a pump inside the pipe and begin dewatering,’ explains Barnett.’
    • ‘Phase I called for dewatering and rehabilitating the No.6 shaft, sinking the shaft to the 45th level, cutting seven level stations, and diamond drilling the conglomerate bed.’
    • ‘The program would include installing a surface plant and dewatering the No.3 shaft to the 9th level, followed by drifting on that level and test stoping the Calumet and Hecla Conglomerate lode.’
    • ‘We began by dewatering the site, followed by a geophysical survey and excavation of nearly 20 m2.’
    1. 1.1Remove water from (sediment or waste materials)
      ‘in theory, this equipment could dewater sewage sludge, but that would require more development’
      • ‘The upgraded and refurbished plant has a new intake system, an upgraded and refurbished treatment plant, a new clearwater tank and pumping station and a sludge processing and dewatering facility.’
      • ‘Anglian Water wants to build the new sludge dewatering plant at its Stock Road works and plans to close a pipeline to take sewage to Stambridge for treatment, built only five years ago.’
      • ‘‘When the sludge gets dewatered, it becomes a cake,’ Andersen explains.’
      • ‘In its vertical configuration, the system has been adapted successfully as a filter press for cost-effective sludge dewatering.’
      • ‘It said the time taken for the sludge to travel the 6km from Southend to Stambridge caused a build-up of hydrogen sulphide and has corroded the equipment in the dewatering plant, as well as presented a health risk to workers there.’
      • ‘The frequent occurrence of sediment dewatering structures (notably in facies V) provides ample evidence for high sedimentation rates.’
      • ‘It seems my ever over-optimistic supervisor, John Bartlett, thinks it is time I published a review paper on sludge dewatering for a peer reviewed journal.’
      • ‘Besides the ‘high quality of effluent’ discharged into the nearby Klipspruit River, Olifantsvlei thickens, dewaters and composts 100 tons of sludge it receives each day, in one of the largest composting facilities in the world.’
      • ‘Inorganic sedimentary structures such as gas-evasion marks, load and dewatering structures, are common in the Twitya Formation.’
      • ‘Freezing has been demonstrated to improve dewatering in manure, improving settling and filtering.’
      • ‘We need to identify their migration pathways through the dewatering, compacting and deforming sediments to better understand the hydrogeologic and sedimentary processes in sedimentary basins and continental margins.’
      • ‘With this pressure gone, the weight of the sediments would dewater the sediments by squeezing the water up through all of the sediment layers, carrying with it sand and silt and leaving it in ever-widening cracks called clastic dykes.’
      • ‘The sediments from Dunure are frequently rippled and show examples of dewatering structures, desiccation cracks and foam marks.’
      • ‘Mud volcanoes indicate that this subcretion occurs where dewatering stiffens the subducted sediments.’
      • ‘When they are 95 per cent dewatered, sludges are put into pellet form - superior for disposal purposes because in becoming pellets, nearly all of the pathogenic bacteria are killed.’