Efficient coagulant special for emulsified oil waste water and preparation method of efficient coagulant
A technology of emulsified oil and coagulant, applied in chemical instruments and methods, water treatment of special compounds, water/sewage treatment, etc., can solve the complex production process, low efficiency of emulsified oil wastewater treatment, limited range of applicable oil content, etc. problems, to achieve the effect of simple preparation process, shortening the floating time of flocs, and easy control of the production process
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example 1
[0020] Example 1: Preparation of special coagulant for high-efficiency emulsified oil
[0021] At 20°C, weigh 28 parts of sodium silicate solution (0.5mol / L) and gradually add it to 18 parts of 20% sulfuric acid solution, adjust the pH value of the activated silicic acid to 1.0, stir at 200r / min for 40min, and then Stand for 24 hours and set aside; weigh 20 parts of aluminum sulfate, 18 parts of ferrous sulfate, and 2 parts of sodium chlorate and mix them thoroughly, add 9 parts of 20% sulfuric acid solution, and stir at 20°C at a speed of 200r / min until Completely dissolve; weigh 2 parts of manganese chloride and add to the solution prepared in the previous step, and stir at 200r / min for 40min; slowly add the solution prepared in the previous step to activated silicic acid at a temperature of 20°C at 200r / min Min speed stirring for 60 min; then weighed 3 parts of sodium hydroxide and added to the solution prepared in the previous step at a temperature of 20 ° C at a speed of ...
example 2
[0022] Example 2: Preparation of special coagulant for high-efficiency emulsified oil
[0023] At 25°C, weigh 16 parts of sodium silicate solution (0.5mol / L) and gradually add it to 16 parts of 25% dilute acid solution. When the pH value of the acid reaches 2.0, stir at 300r / min for 30min, then let it stand for 36h for later use; after weighing 37 parts of aluminum sulfate, 8 parts of ferrous sulfate, and 6 parts of sodium chlorate, add 8 parts of dilute acid Place it in the solution at 25°C and stir at 300r / min until completely dissolved; weigh 6 parts of manganese nitrate and add it to the solution prepared in the previous step, and stir at 25°C at 300r / min for 40min ; Slowly add the solution prepared in the previous step to the activated silicic acid and stir at a speed of 300r / min for 50min; then weigh 3 parts of sodium hydroxide and add it to the solution prepared in the previous step and stir at a speed of 300r / min at 25°C 50min; Finally, the prepared coagulant solution...
example 3
[0024] Example 3: Preparation of special coagulant for high-efficiency emulsified oil
[0025] At 40°C, weigh 22 parts of sodium silicate solution (0.3mol / L) and gradually add it to 15 parts of 20% sulfuric acid solution, adjust the pH value of activated silicic acid to 3.0, and stir at 400r / min for 40min. Then it was left to stand for 24 hours for later use; 16 parts of aluminum sulfate, 15 parts of ferrous sulfate, 4 parts of sodium chlorate, and 7 parts of 20% sulfuric acid solution were weighed and stirred at 400 r / min until Completely dissolve; weigh 19 parts of manganese chloride and add to the solution prepared in the previous step, and stir at 400r / min for 20min; slowly add the solution prepared in the previous step to the activated silicic acid at 40°C at 400r / min Stir at a rotating speed for 30 minutes; then weigh 2 parts of sodium hydroxide and add it to the solution prepared in the previous step and stir for 30 minutes at 40°C at a rotating speed of 400r / min; final...
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