Rapid curing treatment agent for heavy metal wastewater filter residues

Abstract

The invention discloses a rapid curing treatment agent for heavy metal wastewater filter residues. The rapid curing treatment agent is characterized by consisting of the following components in parts by weight: 200 parts of a cross-linking agent, 100 parts of a stabilizing agent, 50 parts of an permeation-resistant agent, 200 parts of a water reducing agent, 500 parts of a curing agent and 10 parts of a filling agent. A method for treating the heavy metal wastewater filter residues by using the rapid curing treatment agent comprises the following steps: firstly, adding lime into the heavy metal wastewater filter residues, sufficiently stirring, adding a heavy metal waste residue curing agent, sufficiently stirring, pouring into a shaping mold for pressing molding curing, and demolding after 20-40 minutes, thereby obtaining a solid of which the metal leaching rate is low, wherein the addition amount of the lime is 10% of the filter residues; the addition amount of the heavy metal waste residue curing agent is 5-10% of the filter residues. The leaching toxicity of the prepared solid can completely meet the standard of Identification Standard for Hazardous Wastes-Identification for Extraction Toxicity (GB5058.3-2007). The rapid curing treatment agent is simple in curing process, low in cost and safe and reliable, and various heavy metal pollution problems caused by waste residues can be solved.

Description

technical field [0001] The invention relates to the technical field of heavy metal wastewater filter residue treatment, in particular to a heavy metal wastewater filter residue rapid solidification treatment agent and a method for using the treatment agent to treat heavy metal wastewater filter residue. Background technique [0002] Our country produces billions of tons of waste every year, including industrial industrial wastewater, especially heavy metal wastewater filter residue. However, because this type of waste residue has a wide range of sources, complex components, and may contain a variety of substances harmful to the environment and human health, the more typical heavy metal ions (Pb, Cr 6+ , Hg, Cd), leaching toxic substances, etc. These substances will have a negative impact on human health, serious carcinogenic, teratogenic. Contents of the invention [0003] In view of the above inadequacies, the object of the present invention is to provide a kind of can ...

AI Technical Summary

Problems solved by technology

However, because this type of waste residue has a wide range of sources, complex components, and may contain a variety of substances harmful to the environment and human health, the more typical heavy metal ions (Pb, Cr 6+ , Hg, Cd), leaching toxic substances, etc.