Flue gas acid production waste acid recovery and treatment equipment

>Non-ferrous metal minerals mostly exist in the form of sulfide, and pyro-smelting is often used to desulfurize during the smelting process. Therefore, large amounts of sulfur dioxide are released during the pyro-smelting of major non-ferrous metals in my country, such as copper, lead, zinc, nickel, diamond and precious metals such as gold. The flue gas is the source of raw materials for making acid from smelting flue gas. In the process of making acid from flue gas, a large amount of highly acidic wastewater containing heavy metals, that is, polluted acid, is produced. The content of harmful substances such as mercury, arsenic, and lead in polluted acid is higher than that of ordinary industrial wastewater, which is extremely harmful to the environment and has become a major problem for environmental protection. . At present, most of the waste acid treatment still adopts the traditional lime neutralization method. On the one hand, this method wastes resources and cannot make reasonable use of resources. On the other hand, it has a certain impact on the environment. With the implementation of the new Environmental Protection Law, this traditional method will be eliminated, and the treatment of waste acid will face new challenges.
>Xi'an Environmental Technology Company has developed waste acid recovery and reuse equipment for the flue gas acid-making industry. This equipment recycles waste acid through blocking separation. The characteristics of acid treatment equipment are: normal temperature regeneration, low energy consumption, large processing capacity and high cost performance (compared to membrane recovery acid equipment). It can be selected according to water quality and quantity requirements. It is highly adjustable to avoid wasting money. The equipment has a long service life and maintenance rate. The low-cost equipment has a wide application range and is easy to operate. It separates acid from metal salts and is conducive to the recovery of metal salts. After the waste acid liquid is processed by passivation recovery equipment, zero wastewater discharge can be achieved.