A kind of treatment method of waste gas waste water in the production process of trichloroisocyanuric acid
A technology of trichloroisocyanuric acid and production process, applied in carbonate preparations, calcium/strontium/barium chloride, calcium/strontium/barium halide, etc., can solve the problem of environmental pollution of production waste gas and wastewater and comprehensive utilization of resources, etc. problem, to achieve the effect of clean production process, easy reaction and reduced evaporation cost
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Embodiment 1
[0043] Step A: The waste liquid after centrifugation and dehydration of trichloroisocyanuric acid is pumped into the static mixer for acidification through the flow meter at a speed of 15000kg / h and 30% hydrochloric acid 80~100kg / h from the hydrochloric acid head tank at the same time, so that it can be mixed The pH value of the liquid is maintained at 1.2~1.3. The acidified solution in the static mixer enters from the upper part of the dechlorination tower at normal temperature, and the compressed air is sent from the bottom of the dechlorination tower at 1000m3 / h. The top of the chlorine tower is discharged and passed into the chlorination reaction kettle, the reaction liquid is suction filtered, and the obtained cyanuric acid filter cake is returned to production to continue to be used as raw materials for production, and the filtrate is collected and then pumped into the neutralization reactor.
[0044] Step B: Add about 15,000 kg of acidified dechlorinated mother liquor in...
Embodiment 2
[0047] Step A: The waste liquid after centrifugation and dehydration of trichloroisocyanuric acid is pumped into the static mixer for acidification through the flow meter at a speed of 15000kg / h and 30% hydrochloric acid 80~100kg / h from the hydrochloric acid head tank at the same time, so that it can be mixed The pH value of the liquid is maintained at 1.50. The acidified solution in the static mixer enters from the upper part of the dechlorination tower at normal temperature, and the compressed air is sent from the bottom of the dechlorination tower at 1000m3 / h. The compressed air sends the chlorine gas generated by the reaction from the dechlorination tower The top is discharged and passed into the chlorination reactor, and the reaction liquid is suction-filtered, and the obtained cyanuric acid filter cake is returned to production to continue to be used as a production raw material, and the filtrate is collected and then pumped into the neutralization reactor.
[0048] Step ...
Embodiment 3
[0051] Step A: The waste liquid after centrifugation and dehydration of trichloroisocyanuric acid is pumped into the static mixer for acidification through the flow meter at a speed of 15000kg / h and 30% hydrochloric acid 80~100kg / h from the hydrochloric acid head tank at the same time, so that it can be mixed The pH value of the liquid is maintained at 1.90~2.00. The acidified solution in the static mixer enters from the upper part of the dechlorination tower at normal temperature, and the compressed air is sent from the bottom of the dechlorination tower at 1000m3 / h. The top of the chlorine tower is discharged and passed into the chlorination reaction kettle, the reaction liquid is suction filtered, and the obtained cyanuric acid filter cake is returned to production to continue to be used as raw materials for production, and the filtrate is collected and then pumped into the neutralization reactor.
[0052] Step B: Add about 15,000 kg of the mother liquor after acidification ...
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