Acid recovery chiller unit

In the process of producing steel pipes, due to process requirements, steel pipe manufacturers inevitably produce cleaning wastewater and waste acids. If the wastewater and waste acid are directly discharged to the environment without treatment, it will cause severe environmental pollution and bad social impact. Expenses remain high, increasing production and operating costs. The waste acid recovery unit utilizes a new process, freezing crystallization, to recover and treat the waste acid generated during the production process of the enterprise. The freezing crystallization treatment of the sulfuric acid pickling waste liquid is to separate the ferrous sulfate crystals by controlling the conditions under which ferrous sulfate is crystallized from the waste liquid. It has the effect of purifying the pickling waste liquid and recovering ferrous sulfate.