Method for treating wastewater containing heavy metal ions of vanadium, nickel, lead, chromium and equipment thereof

A technology of heavy metal ions and metal ions, which is applied in the chemical industry, can solve problems such as large doses of chemicals, secondary pollution of the environment, and ineffective treatment effects, and achieve the effect of reducing the impact

Active Publication Date: 2013-06-26
湖南水木科技有限公司
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although the above-mentioned patents have all proposed the treatment of vanadium industrial wastewater, they still have not broken through the conventional treatment methods. The problem in the treatment process is that the amount of medicine that needs to be put into the wastewater is relatively large, the treatment effect is not obvious, and direct discharge will also cause damage to the wastewater. The environment causes certain secondary pollution, so it needs to be further improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for treating wastewater containing heavy metal ions of vanadium, nickel, lead, chromium and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A treatment process for heavy metal ions containing vanadium, nickel, lead, chromium, etc. The waste water is pumped out from the waste water pool 1 by the waste water pump 2, and the pH value is adjusted to about 5.3-5.8 by the pH adjustment device 3 equipped with acid, and then After the pre-sand filter 4 is filtered, the multi-dimensional electrochemical composite treatment device 6 is used for secondary treatment; during the multi-dimensional electrochemical composite treatment, after the heavy metal ions pass through the electrolyzed water on the anode plate, hydrogen ions are consumed, hydroxide ions are increased, and combined with hydrogen Oxygen radicals are combined to form hydroxide; and under the combined action of polyacrylamide, the coagulant aid dosing device 7 equipped with polyacrylamide, the sediment is efficiently precipitated in the inclined plate sedimentation tank 9, and the supernatant Medium heavy metal content is removed.

[0034] The principle ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for treating wastewater containing heavy metal ions of vanadium, nickel, lead, chromium and a device by using the method. The method is characterized by comprising the following steps of: sending the wastewater containing the heavy metal ions of vanadium, nickel, lead, chromium into an electrolytic cell through a multidimensional electrochemical composite treatment device, wherein the heavy metal ions in the wastewater successively consume hydrogen ions, increase hydroxyl ions, and bind with the hydroxyl to generate hydroxides on an anode plate after the electrolysis of the wastewater, and sediment is separated out on an inclined-plate sedimentation tank under a proper PH value and the combined effect of a coagulant aid of polyacrylamide to remove the heavy metal content in the wastewater, so that the generated supernate no longer contains exceeding heavy metals, the supernate is then discharged, and therefore the wastewater does not cause secondary pollution, and the direct discharge of the treated wastewater does not cause any influence on the environment. The technology of the method is simple and easy in implementation.

Description

technical field [0001] The invention relates to a wastewater treatment process and corresponding equipment, in particular to a wastewater treatment process and equipment for treating heavy metal ions containing vanadium, nickel, lead, chromium, etc., and belongs to the technical field of chemical industry. Background technique [0002] Vanadium industrial wastewater is produced by adding sodium salts (Na2CO3, NaCl) to ferrovanadium ore, roasting at high temperature, and immersing the roasted substances (chloride, carbonate, sodium vanadate, etc.) in water. The solution is filtered to obtain sodium vanadate solution and residue, add ammonium chloride and ammonium carbonate to the vanadate solution, filter after reaction, the filter residue is ammonium salt, and the filtrate is wastewater containing vanadium (V) and chromium (VI) . Vanadium industrial wastewater mainly contains the following harmful substances, mainly metal vanadium, heavy metal elements such as lead, molybde...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F101/20C02F101/22
Inventor 刘奇军罗奎黄弦
Owner 湖南水木科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap