Heavy metal wastewater treatment agent and preparation method of heavy metal wastewater treatment agent

Abstract

The invention discloses a heavy metal wastewater treatment agent and a preparation method of the heavy metal wastewater treatment agent. The heavy metal wastewater treatment agent is prepared from the following raw materials in parts by weight: 3 to 8 parts of polyacrylamide, 15 to 22 parts of phosphorus ferric polychloride, 12 to 18 parts of gypsum, 20 to 28 parts of zeolite, 10 to 15 parts of sodium lignin sulfonate, 6 to 10 parts of polymerized ferric phosphate, 50 to 58 parts of water, 3 to 8 parts of calcium oxide, 12 to 18 parts of aluminum hydroxide, 3 to 8 parts of calcium chloride, 5 to 10 parts of active carbon, 12 to 15 parts of aluminum potassium sulfate and 5 to 8 parts of diatomite. The heavy metal wastewater treatment agent is prepared by treating the polyacrylamide, the phosphorus ferric polychloride, the polymerized ferric phosphate, the calcium chlorid, the sodium lignin sulfonate and the zeolite by high-pressure water steam to prepare a mixture A, mixing the gypsum, the calcium oxide, the aluminum hydroxide, the active carbon, the aluminum potassium sulfate, the diatomite and the water, and carrying out ultrasonic treatment to obtain a mixture B, and putting the mixture A into the mixture B and treating. The heavy metal wastewater treatment agent disclosed by the invention has a chelating effect on heavy metal, has the advantages of short precipitation time, good effect, low cost and complete treatment, and can be widely applied to the field of heavy metal wastewater treatment.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a heavy metal wastewater treatment agent and a preparation method thereof. Background technique [0002] Heavy metal wastewater refers to wastewater containing heavy metals discharged from industrial production processes such as mining and metallurgy, machinery manufacturing, chemical industry, electronics, and instrumentation. Heavy metal (such as cadmium, nickel, mercury, zinc, etc.) wastewater is one of the most serious environmental pollution and one of the most harmful industrial wastewater to humans, and its water quality and quantity are related to the production process. Heavy metals in wastewater generally cannot be decomposed and destroyed, but can only transfer their existing positions and change their physical and chemical forms. The treatment method is to first reform the production process, use no or less toxic heavy metals, and treat them on the spot ...

AI Technical Summary

Problems solved by technology

This method has the disadvantages of time-consuming, solid slag cannot be processed, high processing cost, and incomplete processing.