Method for removing trace heavy metal and trace F-53B in electroplating wastewater treatment effluent

Abstract

The invention provides a treating method for removing trace heavy metal and trace F-53B in electroplating wastewater treatment effluent. By setting a microorganism degradation zone, nitrogen and phosphorus and a part of organic matters in industrially treated wastewater can be removed by utilizing compound microorganisms; by setting an algae adsorption zone, trace organic matters in wastewater canbe adsorbed by utilizing algae cells, and refractory trace organic matters in the wastewater can be fixed; by setting an intercepting net and filling volcanic, carbon residue and magnetite residue, heavy metal in the wastewater can be synergistically reduced; by setting an emergent plant zone, a floating plant zone and a submerged plant zone, ecologic degradation can be further carried out on a water body. A device can also be arranged in a natural river channel, so that the natural river channel can be repaired, the visibility of the water body can be improved, and enrichment of the heavy metal and the refractory organic matters in aquatic animals and plants can be reduced.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to an in-depth method for removing trace amounts of heavy metals and trace amounts of F-53B in electroplating wastewater treatment effluent. Background technique [0002] Electroplating is one of the basic processes of the manufacturing industry, which has greatly promoted the development of my country's economy and society. However, along with benefiting mankind, a large amount of electroplating wastewater, such as plating parts cleaning wastewater, waste bath liquid, equipment cooling liquid, and waste plating liquid, is also produced during the electroplating production process, making electroplating one of the three major polluting industries in the world today. In the prior art, electroplating wastewater is treated and discharged into natural rivers through multi-stage physical, chemical and biochemical treatment methods. However, even if the treated sewage is discharged, becau...

AI Technical Summary

Problems solved by technology

Studies have shown that the enrichment of F-53B can cause embryonic developmental toxicity and cardiac developmental toxicity in fish, and affect the malignant changes in fish body weight and thyroid hormone levels

[0004] In the treated electroplating industrial treatment water, there are still some trace and trace organic pollutants and heavy metals such as F-53B entering the water body to pollute the water source. The concentration of these pollutants is very small, conventional COD, BOD 5 And other indicators can not be reflected, but these substances are highly toxic, easy to cause cancer and cause lesions, etc.

Conventional electroplating wastewater treatment does not pay attention to the treatment and reduction of such substances, and F-53B is difficult to remove through traditional sewage treatment processes. Studies have shown that the traditional "anaerobic + aerobic" sewage treatment process has an Removal only reaches 20~30%

Images