Heavy metal processing wastewater treatment process

Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to a heavy metal processing wastewater treatment process. The used wastewater treatment device comprisesa main body, a shell, a water inlet pipe, a cross rod, an impeller, a fixing rod, a connecting rod, a piston rod, a first piston, a first spring, a connecting pipe, extension plates, a partition plate, guide plates, baffle plates, rotating rods, a sliding plate, a toothed plate, gears, a connecting shaft, a belt wheel, a belt, a rotating shaft, connecting plates, stirring rods, a sleeve plate, a first flow guide pipe, a first water outlet pipe, a sealing plug, a second water outlet pipe, a second flow guide pipe, a shell, a second spring, a second piston and a sliding rod. The adding amount ofa flocculating agent can be controlled according to the speed of back-and-forth movement of the piston; primarily treated heavy metals can be conveniently guided through the movement of the baffle plates; the rotation of the stirring rods is beneficial to re-separation of heavy metals in wastewater, so that centralized treatment of the heavy metals is facilitated; through the design of the wateroutlet pipe, the treated wastewater and heavy metals can be conveniently and separately discharged.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, in particular to a heavy metal processing waste water treatment process. Background technique [0002] Heavy metal wastewater treatment refers to the process of purifying the heavy metals contained in sewage to meet the water quality requirements of a certain water body for drainage or reuse. The methods of heavy metal wastewater treatment can be roughly divided into chemical method, physical treatment method and biological treatment. Heavy metal wastewater treatment refers to the process of purifying the heavy metals contained in sewage to meet the water quality requirements of a certain water body for drainage or reuse. Heavy metal wastewater is produced in many production processes in industry. Heavy metal wastewater is one of the most serious environmental pollution and one of the most harmful industrial wastewater to humans. The heavy metals in wastewater cannot be decomposed a...

AI Technical Summary

Problems solved by technology

However, the current Fenton reagent cannot be added to the wastewater while adding the Fenton reagent in the pretreatment process of heavy metal wastewater, resulting in poor wastewater pretreatment effect, and it is not conducive to the preliminary precipitation and separation of heavy metals and wastewater after preliminary precipitation.

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