Treatment agent used for enhanced primary treatment on acidic electroplating wastewater

Abstract

The invention discloses a treatment agent used for enhanced primary treatment on acidic electroplating wastewater. The treatment agent used for the enhanced primary treatment on the acidic electroplating wastewater is characterized by being composed of the following ingredients in parts by mass: 10-20 parts of sodium sulfide, 3-8 parts of ferrous sulfate, 5-15 parts of sodium metabisulfite, 45-60parts of diatomite, 5-15 parts of iron powder, 3-8 parts of shell powder, 3-8 parts of sodium hydroxide, 7-20 parts of sodium bicarbonate, 5-12 parts of bacillus licheniformis, and 5-15 parts of activated carbon. The treatment agent used for the enhanced primary treatment on the acidic electroplating wastewater disclosed by the invention comprises the sodium sulfide, the ferrous sulfate, the sodium metabisulfite, the diatomite, the iron powder, the shell powder, the sodium hydroxide, the sodium bicarbonate, the bacillus licheniformis and the activated carbon; and the sodium hydroxide is addedin a small amount while the shell powder and sodium bicarbonate are added in relatively large amounts so that the treatment agent is powder with weak alkalinity, and thus, heat production can be reduced. In addition, the activated carbon is added, so that the treatment agent has enhanced adsorption effects so as to avoid volatilization of harmful volatile substances; and thus, good work environment is ensured.

Description

technical field [0001] The invention belongs to the technical field of electroplating wastewater treatment, and in particular relates to a treatment agent for primary intensive treatment of acidic electroplating wastewater. Background technique [0002] At present, electroplating technology is widely used in machinery and electronics industries. However, the composition of wastewater produced in electroplating production is very complex. In addition to cyanide (CN-) and acid and alkali, heavy metals are potentially harmful wastewater categories in the electroplating industry. These Substances seriously endanger the environment and human health. For acidic electroplating wastewater, a large amount of strong alkaline substances are often added to the treatment agent. The addition of strong alkaline substances will generate a lot of heat, which will volatilize harmful volatile substances in electroplating wastewater and cause harm to the staff. Contents of the invention [0...

AI Technical Summary

Problems solved by technology

[0002] At present, electroplating technology is widely used in machinery and electronics industries. However, the composition of wastewater produced in electroplating production is very complex. In addition to cyanide (CN-) and acid and alkali, heavy metals are potentially harmful wastewater categories in the electroplating industry. These Substances that seriously endanger the environment and human health

For acidic electroplating wastewater, a large amount of strong alkaline substances are often added to the treatment agent. The addition of strong alkaline substances will generate a lot of heat, which will volatilize harmful volatile substances in the electroplating wastewater and cause harm to the staff.