Method for preparing active fly ash phosphorus adsorbent
A technology of phosphorus adsorbent and fly ash, which is applied in the field of preparation of adsorbent and active fly ash phosphorus adsorbent, can solve the problems of increased pH value, large sludge production, excessive ash content, etc., and achieves a solution Dealing with problems, reducing the amount of dosage, and the effects of a wide range of sources
Inactive Publication Date: 2005-09-21
SHANGHAI JIAO TONG UNIV
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The invention relates to a method for preparing an active coal ash phosphoric adsorbent, which comprises the following steps: a) mixing the coal ash and the basic activating agent evenly in the high-speed batch mixer, b) roasting and activating them in the calcining furnace, c) putting them into the acidproof retort after cooling and adding acidic modifier into the retort, d) heating them to react, then drying and grinding the materials and getting the powdered phosphoric adsorbent with high active. Said invention uses the industrial waste coal ash as the raw material, and by means of the low-cost activating agent and modifier it can dissolve out the material with high absorptive in the coal ash, and the prepared absorbent has high dephosphorize effect.
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