Chemical reagent capable of removing heavy metals and used for sewage treatment

Abstract

The invention discloses a chemical reagent capable of removing heavy metals and used for sewage treatment. The preparation method comprises: respectively activating strains; inoculating all the strains after activation and expansion culture into a mixed strain culture medium, and culturing for 36 h; carrying out centrifugal separation; mixing with poly dimethyl diallyl ammonium chloride, citric acid, corn starch, coke residue powder, active carbon and sodium alginate to obtain a primary sewage treatment reagent; adding hexadecyltrimethylammonium chloride, ammonia water and a silicon source tosludge coke, carrying out a reaction, and heating; carrying out a reaction on the obtained mesoporous silica sludge coke and an amino-containing substance to obtain a heavy metal adsorbent; and mixingthe primary sewage treatment reagent and the heavy metal adsorbent to obtain a chemical reagent capable of removing heavy metals from sewage. According to the present invention, the chemical reagenthas characteristics of low manpower consumption, low material resource consumption and low secondary pollution to the environment, can remove heavy metal ions from sewage while perform general treatment on the sewage, and has high decontamination efficiency.

Description

technical field [0001] The invention relates to a chemical reagent for sewage treatment, in particular to a chemical reagent capable of removing heavy metals for sewage treatment. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and it is also increasingly entering the daily life of ordinary people. [0003] At present, the existing sewage treatment methods consume a lot of manpower and material resources. At the same time, it takes a long time to process, the treatment cycle is long, and it is easy to cause secondary pollution to the environment. In addition, the existing treatment methods generally only It is difficult to remove the heavy metal ions in t...

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Problems solved by technology

[0003] At present, the existing sewage treatment methods consume a lot of manpower and material resources. At the same time, it takes a long time to process, the treatment cycle is long, and it is easy to cause secondary pollution to the environment. In addition, the existing treatment methods generally only Preliminary treatment of sewage, it is difficult to remove heavy metal ions in sewage