Nickel-containing wastewater treatment method and equipment

A nickel wastewater and wastewater technology, applied in water/sewage treatment, neutralized water/sewage treatment, oxidized water/sewage treatment, etc.

Inactive Publication Date: 2015-04-22
深圳市祐林环保有限公司
View PDF7 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production process of the circuit board, due to the requirements of high precision and compactness, the more layers of the circuit board and the thinner the total thickness of the circuit board, the metal nickel is usuall

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
  • Nickel-containing wastewater treatment method and equipment
  • Nickel-containing wastewater treatment method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] figure 1 Shown is a schematic structural diagram of nickel-containing wastewater treatment equipment 100 in an embodiment of the present invention. Such as figure 1 As shown, the nickel-containing wastewater treatment equipment 100 includes a nickel-containing wastewater collection tank 101, a first lift pump 103, a network-breaking oxidation tank 105, a first pH controller 107, a first dosing pump 109, a second dosing pump 112, The third dosing pump 114, the primary reaction sedimentation tank 115, the second pH controller 116, the fourth dosing pump 117,...

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 nickel-containing wastewater treatment method, comprising the following steps: collecting nickel-containing wastewater, and pumping the nickel-containing wastewater into a complex breaking oxidation pool; adding sulfuric acid into the complex breaking oxidation pool until the pH value in the complex breaking oxidation pool is 2.0-2.5; adding ferrous sulfate and hydrogen peroxide into the complex breaking oxidation pool to break a nickel complex to enable the nickel complex to form free nickel; conveying the treated wastewater into a primary reaction sedimentation tank; adding lime into the primary reaction sedimentation tank until the pH value in the primary reaction sedimentation tank is 10.0-10.5; adding a coagulant into the primary reaction sedimentation tank to generate coagulating sedimentation; conveying the treated wastewater into a secondary reaction tank; adding drift ice into a secondary reaction sedimentation tank to remove residual cyanides and other organic complexes in the wastewater by oxidization, regulating the pH value in the secondary reaction sedimentation tank to 10.0-10.5, and precipitating; pumping the wastewater treated in the secondary reaction sedimentation tank into a filtering system; filtering a small amount of mud and a part of suspended solids in the wastewater via the filtering system.

Description

technical field [0001] The invention relates to wastewater treatment technology, in particular to a nickel-containing wastewater treatment method and equipment. Background technique [0002] In the production process of the circuit board, due to the requirements of high precision and compactness, the more layers of the circuit board and the thinner the total thickness of the circuit board, the metal nickel is usually used as the intermediate layer between gold and copper in the prior art. Therefore, nickel is used in the immersion gold and gold plating processes in the circuit board manufacturing process, resulting in nickel-containing wastewater. However, since nickel is a type of pollutant, its discharge standard is more stringent than that of other heavy metals. Therefore, there is an urgent need for a nickel-containing wastewater treatment method with better treatment effect to facilitate the production of circuit board manufacturers and other manufacturers. The nickel-...

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
IPC IPC(8): C02F9/04
CPCC02F9/00C02F1/42C02F1/52C02F1/5236C02F1/66C02F1/72C02F1/722C02F1/76C02F2101/18C02F2101/20
Inventor 周洋
Owner 深圳市祐林环保有限公司
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