A PROCESS FOR MANUFACTURING SYNTHETIC ZEOLITES USING ORGANIC SLUDGE

摘要

A method for preparing synthetic zeolite using organic sludge is provided to prepare the synthetic zeolite by immobilizing and granulating the porous zeolite after preparing a porous zeolite by pyrolyzing sludge in an anoxic state to obtain a carbide with high yield and passing the carbide through the hydrothermal synthesis process, and crush the synthetic zeolite to powder with a desired average particle diameter according to use applications so that the powder can be utilized as an adsorbent for organic matters and heavy metals. A method for preparing synthetic zeolite using a pyrolyzed carbide of organic sludge comprises: a pre-treatment step of milling an organic sludge of which a moisture content is controlled to 80% or lower through dehydration into power so as to sort particle sizes of the sludge powder; a pyrolysis step of pyrolyzing the dried organic sludge powder to obtain a carbide after injecting a pre-treated organic sludge powder into a pyrolysis equipment and drying the pre-treated organic sludge powder to a moisture content of 3% or lower; a hydrothermal synthesis step of reacting the obtained carbide under a strong alkali condition and washing a product with water to prepare a zeolite powder; and a immobilizing and granulating step of mixing a sulfuric acid solution and water glass with the zeolite powder obtained from the hydrothermal synthesis step, and drying the mixture to prepare a molded zeolite.