China's waste acid recycling volume is about 36.58 million tons, and the waste acid recycling rate is around 36%. By 2022, the volume of waste acid recycling had reached 39 According to the forecast, the market size of China's waste acid recycling industry grew at a rate of 1%-3% in 2023-2029, and the market size is expected to reach 15.985 billion yuan in 2029, a year-on-year growth of 6.92%.

In 2019, 850,000 tons, the comprehensive utilization rate increased to 40.51%. It is expected that by 2025, the recycling volume of waste acid in China is expected to exceed 42 million tons.

China's government has introduced a series of policies to encourage and support the development of the waste acid recycling industry, and waste acid recycling not only reduces environmental pollution, but also realizes the effective recovery and reuse of resources, with significant economic and environmental benefits.

Waste acid recycling technology, one of which is the use of “mixed acid evaporator” evaporation and reuse of concentrated waste acid. Suzhou Rongxuan environmental protection launched the latest generation of LTAPE evaporator (is the abbreviation of Low Temperature Atmospheric Pressure Evaporator Low Temperature Atmospheric Pressure Evaporator), the Department of a use of refrigerant heat pumps as an energy source, operating at atmospheric pressure in the new concept of plastic evaporator.

The energy body of LTAPE evaporator is a refrigerant heat pump host, which can provide 50~60℃ heat source and 15~20℃ cold source. During evaporation, the heat source heats and atomizes the waste acid to produce acid vapor. The acid vapor is transported to the condenser by wind power, and the condenser uses the cold source to condense the acid vapor and form condensate to achieve the purpose of evaporation and separation, and the whole process is carried out under atmospheric pressure.

1、Application fields

① Phosphoric acid, sulfuric acid concentration;

② hydrochloric acid, hydrofluoric acid, nitric acid, oxalic acid and other volatile acid recovery, purification, concentration;

③ Evaporation of other volatile and non-volatile acids;

③ Evaporation of other volatile and non-volatile acids; ④ Separation of salts in waste acids;

⑤ Evaporation treatment of common waste water.

For more information about waste acid evaporator, please pay attention to Rongxuan Environmental Protection.