Treatment method of chemical wastewater containing nitrogen heterocyclic compounds
A technology for nitrogen heterocyclic compounds and chemical wastewater, applied in biological water/sewage treatment, water/sewage treatment, anaerobic digestion treatment, etc., can solve the problem of further improvement of treatment effect, low load impact resistance, and biological toxicity resistance Weakness and other problems, to avoid continuous release of ammonia nitrogen, improve load impact resistance, and avoid toxic effects
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Embodiment 1
[0035] Such as figure 1 Shown, the processing method of a kind of nitrogen-containing heterocyclic compound chemical industry waste water of the present invention, concrete steps are:
[0036] S10. Collect the actual production wastewater from a chemical company that produces 4,6-dihydroxypyrimidine (DHP) in a wastewater collection pool. The specific indicators of the wastewater quality are shown in Table 1 below. Adjust the pH of the waste water to 6 to 8, which is pH 7.5 in this embodiment, then pump the waste water into the coagulation sedimentation tank, add coagulant and flocculant to the coagulation sedimentation tank for coagulation and sedimentation treatment to remove the waste water The suspended particles in the waste water A and sediment are obtained. After the sediment is press-filtered and dehydrated, the solid precipitation waste and the filtrate are obtained. The filtrate is recycled to the water inlet pipe of the coagulation sedimentation tank, and the coagula...
Embodiment 2
[0050] The basic content of this embodiment is the same as that of Example 1, and the difference is that this embodiment treats the production wastewater of a certain pharmaceutical company containing quinoline, and the specific indicators of the wastewater quality are as follows:
[0051] Table 3 Pharmaceutical wastewater water quality indicators
[0052]
[0053] In this embodiment, the production wastewater from a quinoline-containing pharmaceutical company is collected in a wastewater collection tank, and the pH of the wastewater is adjusted to 6.0. Then the wastewater is pumped into the coagulation sedimentation tank for coagulation and sedimentation treatment, so as to remove the suspended particles in the wastewater. The wastewater A after coagulation and sedimentation enters the electrolysis generating tank and the electrolytic reaction tank in turn. The anode in the electrolysis generating tank is RuO 2 -IrO 2 -SnO 2 / Ti, the cathode is graphite; the electrolysi...
Embodiment 3
[0058] The basic content of this embodiment is the same as that of Embodiment 1, the difference is that this embodiment treats the oil trap + air flotation effluent of a certain coal chemical sewage treatment station, and the specific indicators of the oil trap + air flotation effluent water quality as follows:
[0059] Table 5 Water quality indicators of a coal chemical oil trap + air flotation effluent
[0060]
[0061] In this embodiment, waste water is collected in a waste water collection tank, and the pH of the waste water is adjusted to 8.0. Then the wastewater is pumped into the coagulation sedimentation tank for coagulation and sedimentation treatment, so as to remove the suspended particles in the wastewater. The wastewater A after coagulation and sedimentation enters the electrolysis generating tank and the electrolytic reaction tank in turn. The anode in the electrolysis generating tank is RuO 2 -IrO 2 -SnO 2 -Sb 2 o 5 / Ti, the cathode is 316L; the electro...
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