H-acid production wastewater treatment method
A technology for production wastewater and treatment methods, applied in energy wastewater treatment, natural water treatment, water/sewage multi-stage treatment, etc., can solve the problems of polluted environment, complex equipment, poor biodegradability, etc.
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[0028] The present invention will be described in further detail below in combination with specific embodiments.
[0029] The invention discloses a method for treating wastewater from H-acid production, which comprises the following steps:
[0030] S1. Add ammonia water to the waste liquid at a uniform speed and stir until the pH value is 4-6 to obtain the crude treatment liquid material;
[0031] S2. Evaporate the water in the crude treatment feed liquid obtained in step S1 by raising the temperature until the solid-liquid ratio reaches 28% to 32%, to obtain a supersaturated feed liquid;
[0032] S3. cooling and crystallizing the supersaturated feed liquid obtained in step S2 to obtain a mixed feed liquid;
[0033] S4. Centrifuge the mixed material liquid obtained in step S3 to obtain inorganic salt solid fertilizer and organic matter centrifugal liquid.
[0034] In the process of adding ammonia water at a constant speed, the feed liquid is continuously detected to prevent ...
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