Recycling technology for organophosphorus pesticide wastewater
An organophosphorus pesticide and wastewater technology, which is applied in aerobic process treatment, mechanical oscillation water/sewage treatment, water pollutants, etc. efficiency, saving water resources and protecting the environment
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Embodiment 1
[0019] A kind of organophosphorus pesticide waste water reuse process, this process mainly comprises the following steps:
[0020] (1) Concentrate the untreated organophosphorus pesticide wastewater into the sump, pump it into the alkali solution sedimentation tank, and add 200mg / L of calcium oxide for precipitation;
[0021] (2) Put 2000mg / L ferric chloride into the above-mentioned unprecipitated waste liquid, enter the No. 1 pool of ultrasonic air flotation, discharge after air flotation, add 2300mg / L calcium hydroxide and 1500mg / L basic aluminum chloride The mixture enters the No. 2 pool of ultrasonic air flotation, and the waste water is discharged after air flotation;
[0022] (3) Pump the above-mentioned waste liquid into the adjustment tank and mix it with domestic sewage at a ratio of 1:2, pump it into the biological contact oxidation tank for 8 hours for biochemical treatment, and pump the treated waste liquid to the secondary sedimentation Larger particles of sludge...
Embodiment 2
[0024] A kind of organophosphorus pesticide waste water reuse process, this process mainly comprises the following steps:
[0025] (1) Concentrate the untreated organophosphorus pesticide wastewater into the sump, pump it into the alkali solution sedimentation tank, and add 220mg / L of calcium oxide for precipitation;
[0026] (2) Put 2400mg / L ferric chloride into the above-mentioned unprecipitated waste liquid, enter the No. 1 pool of ultrasonic air flotation, discharge after air flotation, add 2200mg / L calcium hydroxide and 1400mg / L basic aluminum chloride The mixture enters the No. 2 pool of ultrasonic air flotation, and the waste water is discharged after air flotation;
[0027] (3) Pump the above-mentioned waste liquid into the adjustment tank and mix it with domestic sewage at a ratio of 1:1.9, pump it into the biological contact oxidation tank for 5 hours for biochemical treatment, and pump the treated waste liquid to the secondary sedimentation Larger particles of slud...
Embodiment 3
[0029] A kind of organophosphorus pesticide waste water reuse process, this process mainly comprises the following steps:
[0030] (1) Concentrate the untreated organophosphorus pesticide wastewater into the sump, pump it into the alkali solution sedimentation tank, and add 180mg / L of calcium oxide for precipitation;
[0031] (2) Put 2800mg / L ferric chloride into the above-mentioned unprecipitated waste liquid, enter the No. 1 pool of ultrasonic air flotation, discharge after air flotation, add 2200mg / L calcium hydroxide and 1600mg / L basic aluminum chloride The mixture enters the No. 2 pool of ultrasonic air flotation, and the waste water is discharged after air flotation;
[0032] (3) Pump the above-mentioned waste liquid into the adjustment tank and mix it with domestic sewage at a ratio of 1:1.8, pump it into the biological contact oxidation tank for 6 hours for biochemical treatment, and pump the treated waste liquid to the secondary sedimentation Larger particles of slud...
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