Resource utilization of waste water containing phenol and sodium sulfate and treating method
A treatment method, sodium sulfate technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem that valuable components cannot be fully utilized, increase treatment costs, high Solve problems such as cost, achieve the effect of simple process operation and treatment, reduce wastewater discharge, and low cost
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Embodiment 1
[0033] The main process equipment is subsidence solid-liquid separation device, heat pump evaporation and concentration equipment, cooling crystallization equipment, evaporation and drying equipment, etc.
[0034] A method for resource utilization and treatment of wastewater containing phenol and sodium sulfate, which is a method for treating wastewater containing 0.1% to 2.0% phenol and 5% to 30% sodium sulfate, and recycling phenol and sodium sulfate, the method steps as follows:
[0035] (1) Adjust the pH value: at 1m 3 Contain 1kg phenol, the waste water of 50kg sodium sulfate, add pH regulator sodium hydroxide, adjust the pH to 10, make the phenol in the material react with sodium hydroxide to generate sodium phenate, and the material enters the next step;
[0036] (2) Evaporation and concentration: The material obtained in the previous step is evaporated and concentrated. In the heat pump evaporation and concentration equipment, the heat pump technology is used to press...
Embodiment 2
[0045] The main process equipment is filter type solid-liquid separation device, heat pump evaporation and concentration equipment, cooling crystallization equipment, evaporation and drying equipment, etc.
[0046] A method for resource utilization and treatment of wastewater containing phenol and sodium sulfate, which is a method for treating wastewater containing 0.1% to 2.0% phenol and 5% to 30% sodium sulfate, and recycling phenol and sodium sulfate, the method steps as follows:
[0047] (1) Adjust the pH value: at 1m 3 Contain 20kg phenol, the waste water of 200kg sodium sulfate, add pH regulator sodium hydroxide, adjust the pH to 12, make the phenol in the material react with sodium hydroxide to generate sodium phenate, and the material enters the next step;
[0048] (2) Evaporation and concentration: The material obtained in the previous step is evaporated and concentrated. In the heat pump evaporation and concentration equipment, the heat pump technology is used to pres...
Embodiment 3
[0057] The main process equipment is centrifugal solid-liquid separation device, heat pump evaporation and concentration equipment, cooling crystallization equipment, evaporation and drying equipment, etc.
[0058] A method for resource utilization and treatment of wastewater containing phenol and sodium sulfate, which is a method for treating wastewater containing 0.1% to 2.0% phenol and 5% to 30% sodium sulfate, and recycling phenol and sodium sulfate, the method steps as follows:
[0059] (1) Adjust the pH value: at 1m 3 Contain 5kg phenol, the waste water of 300kg sodium sulfate, add pH regulator sodium hydroxide, adjust the pH to 11, make the phenol in the material react with sodium hydroxide to generate sodium phenate, and the material enters the next step;
[0060] (2) Evaporation and concentration: The material obtained in the previous step is evaporated and concentrated. In the heat pump evaporation and concentration equipment, the heat pump technology is used to pre...
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