Heavy metal wastewater refers to wastewater containing heavy metals discharged from industrial production processes such as mining and metallurgical machinery, chemical industry, and electronic instruments. Heavy metals enter water bodies through man-made pollution sources such as mining, metal smelting, metal processing and chemical production wastewater, the burning of fossil fuels, the application of pesticides, fertilizers and domestic garbage, as well as natural sources such as geological erosion and weathering. In addition, heavy metals are highly toxic and are harmful to the environment. It is not easy to be metabolized, is easily bioaccumulated and has a biomagnification effect, and is designated as a first-class pollutant. Therefore, how to reduce or even eliminate heavy metal pollution as much as possible has become an important topic for scientific researchers. According to the different principles of heavy metal wastewater treatment, common treatment methods can be roughly divided into three types: the first is the method of removing heavy metal ions in wastewater through chemical reactions, including neutralization precipitation method, sulfide precipitation method, ferrite co-precipitation method Chemical reduction method, electrochemical reduction method, polymer heavy metal collector method, etc. The second method is to adsorb, concentrate and separate heavy metals in wastewater without changing their chemical form, including adsorption solvent extraction, ion exchange and other methods. The third method is The first method is to remove heavy metals from wastewater by means of flocculation, absorption, accumulation and enrichment of microorganisms or plants, including bioflocculation, biosorption, plant remediation and other methods, but each has its own shortcomings. Xi'an Environmental Technology Company has specially developed wastewater heavy metal concentration and separation treatment equipment for such wastewater heavy metal enterprises, specifically helping wastewater heavy metal enterprises to solve these confusions. The characteristics of wastewater heavy metal treatment equipment are:
Regeneration at normal temperature, low energy consumption
Large processing capacity and high cost performance (compared to membrane recovery acid equipment), and can be selected according to water quality and quantity requirements. High adjustment to avoid waste of funds
Long service life of the equipment and low maintenance rate
Wide application range of the equipment and easy operation
Separation of acid and metal salts 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.
Wastewater heavy metal concentration and separation treatment equipment