FIELD: technology of inorganic agents; production of alumo-iron coagulant on base of aluminum sulfate used in water treatment processes, purification of waste water and other industries.
SUBSTANCE: proposed method includes interaction of aluminum hydroxide with sulfuric acid at elevated temperature, holding and crystallization of product; compound of iron is introduced into aluminum hydroxide suspension at atomic ratio of iron to aluminum equal to 0.10-0.20 and sulfuric acid is fed for interaction at excess of 4-8 mass-% of amount required stoichiometrically.
EFFECT: enhanced coagulating capacity of coagulant at simultaneous production of commercial product in solid state.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING COAGULANT BASED ON MIXED ALUMINIUM SALTS | 2000 |
|
RU2177908C2 |
| METHOD FOR PRODUCING COAGULATING AGENTS | 1995 |
|
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| METHOD OF PRODUCING COMPLEX ALUMINIUM-CONTAINING COAGULANT | 2019 |
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| COAGULANT-ADSORBENT FOR CLEANING INDUSTRIAL WASTES FROM HEAVY METALS, METHOD OF PRODUCING COAGULANT-ADSORBENT FOR CLEANING INDUSTRIAL WASTES FROM HEAVY METALS AND METHOD OF USING COAGULANT-ADSORBENT FOR CLEANING INDUSTRIAL WASTES FROM HEAVY METALS | 2009 |
|
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| METHOD OF PRODUCING COAGULANT FOR WATER TREATMENT | 2009 |
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| METHOD OF PREPARING IRON-CONTAINING COAGULANT | 2010 |
|
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| METHOD OF PRODUCING IRON-CONTAINING COAGULANT FROM PRODUCTION WASTES | 2018 |
|
RU2702572C1 |
| METHOD FOR PREPARING COAGULATING AGENT | 2001 |
|
RU2215691C2 |
| METHOD FOR PREPARING MODIFIED ALUMINUM SULFATE | 2005 |
|
RU2291108C1 |
| COAGULANT FOR CLEANING NATURAL AND WASTE WATER, METHOD OF PRODUCTION AND USE OF SUCH COAGULANT | 2000 |
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RU2195434C2 |
