Heavy metal sewage treating agent

Abstract

The invention relates to a heavy metal sewage treating agent which is prepared from calcite, clay, bentonite, sodium aluminate, activated carbon, silica, rock sand crystal and sandy oil. The heavy metal sewage treating agent can continuously treat heavy metal sewage with relatively high concentration, and the treated water can be repeatedly recycled. The heavy metal sewage treating agent can be repeatedly used. The heavy metal sewage treating agent disclosed by the invention is wide in use scope, simple in preparation and processing process, good in treatment effect, steady in performance, andgood in effluent quality, and can effectively lower water treatment cost.

Description

technical field

[0001] The invention relates to a sewage treatment agent, in particular to a heavy metal sewage treatment agent. Background technique

[0002] As the name implies, sewage treatment agent is an additive that needs to be used in sewage treatment, such as polyacrylamide, cationic polyacrylamide, anionic polyacrylamide, nonionic, zwitterionic polyacrylamide, polyaluminum chloride, etc. in different uses It can be used as a sewage treatment agent. At present, there are three main types of heavy metal wastewater treatment methods in my country: the first category is the removal of heavy metal ions in wastewater through chemical reactions, including neutralization precipitation, sulfide precipitation, ferrite co-precipitation, chemical reduction, and electrolysis. Chemical reduction method and polymer heavy metal trapping agent method, etc. The second category is the method of adsorbing, concentrating, and separating heavy metals in wastewater without changing thei...