Processing method and device null of the mud water and the waste water for industry in mud water excavation

摘要

PURPOSE:To lower the sp. gravity of muddy water and to recycle the muddy water after a retreament by agitating fine particles, under addition of a flocculating agent thereto, to bring the particles into reaction and to grow the particles as flocs in a line mixture and a reaction tube, compacting the flocs with a muddy water separating machine of a centrifugal type and filtering the treated water after separation of the liquid from the solider in a clean water filter chamber, then releasing the water. CONSTITUTION:The waste muddy water, etc., are entered via a pipeline 3 into a neutralization chamber 4 by the effect of a liquid pump 2 in an original liquid tank 1a and are neutralized and coagulated by the aluminium sulfate, etc., from a coagulant tank 5. Inorg. flocculating agent is primarily added from flocculating agent tank 14 to the waste muddy water during the passage of the muddy water through the inside of the pipeline 7 by the effect of a fluid pump 6 in the neutralization chamber 4. After the muddy water is subjected to the mixing by the line mixer 8 and the reaction by the reaction tube 9, the flocculating agent is secondarily added to the pipeline led out of the reaction tube 9 from a tank 16. The waste muddy water, etc., led out of the reaction tube 11 flow via a pipeline 12 into the muddy water separating machine 13 of the centrifugal type, by which the flocculated flocs are compacted; thereafter, the muddy water flows into the clean water filter tank 20.