| 摘要 |
PURPOSE: Provided is a powdery inorganic coagulant composition for industrial wastewater treatment. CONSTITUTION: The inorganic coagulant composition is composed of such as follows: 10-60 % (wt.) of aluminosilicate; 10-40 % (wt.) of sodium salt; 10-30 % (wt.) of iron salt; 5-30 % (wt.) of potassium alum; 5-30% (wt.) of cement; 5-20 % (wt.) of aluminium sulfate; and 0.1-20 % (wt.) of plaster. The addition amount of the inorganic coagulant is 50-400 mg/L for industrial wastewater. The aluminosilicate is selected out of bentonite or zeolite, the sodium salt out of sodium carbonate or sodium sulfate, and iron salt out of ferrous chloride, ferric chloride, ferrous sulfate or ferric sulfate, respectively.
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