Heavy metal wastewater treating agent and preparation method thereof
A wastewater treatment agent and heavy metal technology, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve human health hazards, environmental hazards, and heavy metal wastewater that cannot be biodegraded and other problems to achieve good flocculation effect and good removal effect
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Embodiment 1
[0015] A heavy metal wastewater treatment agent, comprising in parts by weight: 2 parts of deacetylated chitin, 5 parts of ethanol, 0.5 parts of aluminum sulfate, 5 parts of sodium hydroxide, 5 parts of calcium hydroxide, 0.5 parts of ferric chloride, and 0.5 parts of ferric sulfate 0.1 part of methyl p-hydroxybenzoate, 0.1 part of sodium diacetate, 0.1 part of hydrogen peroxide, 0.05 part of peracetic acid, 0.1 part of sodium persulfite, 0.5 part of hydrochloric acid, and 30 parts of water.
[0016] The preparation method of the above-mentioned heavy metal wastewater treatment agent is as follows: first mix deacetylated chitin, hydrochloric acid and water at room temperature, and stir for 10 minutes at a speed of 500 rpm with a magnetic stirrer; then add aluminum sulfate, sodium hydroxide, calcium hydroxide, chlorine Ferric chloride, ferric sulfate, sodium diacetate, hydrogen peroxide, peracetic acid and sodium hyposulfite, heated to 40°C, and stirred at 800rpm for 10 minutes ...
Embodiment 2
[0018] A heavy metal wastewater treatment agent, comprising in parts by weight: 3 parts of deacetylated chitin, 6 parts of ethanol, 0.7 parts of aluminum sulfate, 7 parts of sodium hydroxide, 7 parts of calcium hydroxide, 0.6 parts of ferric chloride, and 0.6 parts of ferric sulfate 0.13 parts of methyl p-hydroxybenzoate, 0.12 parts of sodium diacetate, 0.12 parts of hydrogen peroxide, 0.07 parts of peracetic acid, 0.13 parts of sodium persulfite, 0.7 parts of hydrochloric acid, and 35 parts of water.
[0019] The preparation method of the above-mentioned heavy metal wastewater treatment agent is as follows: firstly mix deacetylated chitin, hydrochloric acid and water at normal temperature, and use a magnetic stirrer to stir for 13 minutes at a speed of 600 rpm; then add aluminum sulfate, sodium hydroxide, calcium hydroxide, chlorine Ferric chloride, ferric sulfate, sodium diacetate, hydrogen peroxide, peracetic acid and sodium hyposulfite, heated to 45°C, and stirred at 900rpm...
Embodiment 3
[0021] A heavy metal wastewater treatment agent, comprising in parts by weight: 3 parts of deacetylated chitin, 7 parts of ethanol, 0.7 parts of aluminum sulfate, 8 parts of sodium hydroxide, 8 parts of calcium hydroxide, 0.8 parts of ferric chloride, and 0.7 parts of ferric sulfate 0.15 parts of methyl p-hydroxybenzoate, 0.15 parts of sodium diacetate, 0.15 parts of hydrogen peroxide, 0.07 parts of peracetic acid, 0.15 parts of sodium persulfite, 0.7 parts of hydrochloric acid, and 40 parts of water.
[0022] The preparation method of the above-mentioned heavy metal wastewater treatment agent is as follows: first mix deacetylated chitin, hydrochloric acid and water at room temperature, and stir for 15 minutes at a speed of 750 rpm with a magnetic stirrer; then add aluminum sulfate, sodium hydroxide, calcium hydroxide, chlorine Iron oxide, ferric sulfate, sodium diacetate, hydrogen peroxide, peracetic acid and sodium hyposulfite, heated to 45°C, and stirred at 1000rpm for 15 mi...
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