METHOD FOR PURIFYING SOIL AND WASTEWATER CONTAMINATED WITH HARMFUL SUBSTANCE
PROBLEM TO BE SOLVED: To provide a method for quickly, efficiently and safely purifying soil and wastewater contaminated with harmful substances by relatively simple operation.SOLUTION: A method for purifying soil contaminated with harmful substances includes: a first process of contacting and mixin...
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| creator | MATSUI TOSHIKI KATAMOTO TSUTOMU SUEMASU TAKUMI |
| description | PROBLEM TO BE SOLVED: To provide a method for quickly, efficiently and safely purifying soil and wastewater contaminated with harmful substances by relatively simple operation.SOLUTION: A method for purifying soil contaminated with harmful substances includes: a first process of contacting and mixing a leaching agent solution with soil contaminated with harmful substances to leach the harmful substances into the leaching agent solution in an ionic state and then solid-liquid separating a leaching agent suspension containing the harmful substances and the soil; and a second process of mixing a water-soluble silicon raw material, a water-soluble aluminum raw material, and an alkali raw material into the separated leaching solution containing harmful substance ions, obtained in the first process and reacting them to adsorb the harmful substance ions to an ion adsorbent comprising hydrated aluminosilicate particles and solidify them while generating the ion adsorbent, and then performing solid-liquid separation. The ion adsorbent is formed of the hydrated aluminosilicate particles. |
| format | Patent |
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The ion adsorbent is formed of the hydrated aluminosilicate particles.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY DECONTAMINATION ARRANGEMENTS THEREFOR DISPOSAL OF SOLID WASTE METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT RECLAMATION OF CONTAMINATED SOIL RECLAMATION OF CONTAMINED SOIL SOIL THEIR RELEVANT APPARATUS TRANSPORTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | METHOD FOR PURIFYING SOIL AND WASTEWATER CONTAMINATED WITH HARMFUL SUBSTANCE |
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