Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Nickel catalytic packing for Fenton reactors

A reactor, nickel catalysis technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problem of affecting sewage treatment efficiency, unsatisfactory catalytic effect, production Cost reduction and other issues, to achieve the effect of favorable performance modulation, good fluidization state, and small investment

Inactive Publication Date: 2019-01-01
江苏滨元环境科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the selection of the carrier and catalyst of the catalytic packing used in the Fenton fluidized bed is particularly critical, which directly determines the dosage and utilization rate of the agent, and then affects the efficiency of sewage treatment.
The fillers provided by the above-mentioned patents have the shortcomings of using polypropylene or polyamide as a carrier, which has weak mechanical strength, short life, and high cost; secondly, it is catalyzed by iron, manganese, cobalt, and copper, and is used for pharmaceuticals and printing and dyeing. In the sewage treatment industry, the catalytic effect is still not ideal, and there is still room for reduction in production costs

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1, a kind of nickel catalytic filler for Fenton reactor, take the natural volcanic rock of 3-6cm as carrier, the catalyst adhesion layer on the surface of natural volcanic rock is nickel oxide, the mass ratio of nickel oxide and carrier natural volcanic rock is 30g nickel oxide / Kg Natural volcanic rock.

[0017] The production method is: dissolve nickel sulfate hexahydrate in water, stir evenly, put natural volcanic rocks into nickel sulfate aqueous solution, adjust the pH to 10 with NaOH solution, and a large amount of nickel hydroxide produced will precipitate on the surface of natural volcanic rocks, and let it stand for 20- After 40 minutes, the natural volcanic rock was taken out and dried at 80°C for 24 hours, and a nickel oxide adhesion layer was formed on the surface of the natural volcanic rock.

Embodiment 2

[0018] Example 2, referring to Example 1, the mass ratio of nickel oxide to carrier natural volcanic rock for a nickel catalytic filler for a Fenton reactor is 25g nickel oxide / Kg natural volcanic rock.

[0019] When manufacturing, dissolve nickel sulfate hexahydrate in water, stir well, put natural volcanic rock into nickel sulfate aqueous solution, adjust pH to 9 with NaOH solution, a large amount of nickel hydroxide produced will precipitate on the surface of natural volcanic rock, and let it stand for 20-40min. The natural volcanic rock was taken out and dried at 70°C for 20 hours, and a nickel oxide adhesion layer was formed on the surface of the natural volcanic rock.

Embodiment 3

[0020] Example 3, referring to Example 1, the mass ratio of nickel oxide to carrier natural volcanic rock for a nickel catalytic filler for a Fenton reactor is 40g nickel oxide / Kg natural volcanic rock.

[0021] When manufacturing, dissolve nickel sulfate hexahydrate in water, stir evenly, put natural volcanic rock into nickel sulfate aqueous solution, adjust pH to 11 with NaOH solution, a large amount of nickel hydroxide produced will precipitate on the surface of natural volcanic rock, and let it stand for 20-40min. The natural volcanic rock was taken out and dried at 90° C. for 18 hours, and a nickel oxide adhesion layer was formed on the surface of the natural volcanic rock.

[0022] The filler that embodiment 1-3 is made is packed in the Fenton reactor and carries out pilot test, and water inflow per hour is 2m 3 , dosing FeSO every hour 4 (10%) 18L, H 2 o 2 (30%) 0.6L, NaOH (30%) 0.7L, can reduce the COD of the influent water from 141.3 to 36.12, 43.64, 37.62 of the e...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
mechanical strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a nickel catalytic packing for Fenton reactors, which belongs to the technical field of wastewater treatment. The nickel catalytic packing for Fenton reactors consists of a carrier and a catalyst loaded on the surface of the carrier, the carrier is natural volcanic rock, which has high mechanical strength and large specific surface area, and can ensure that the packing hasa good fluidized state when in use, and the attached catalyst layer on the surface of the natural volcanic rock is nickel oxide, which has strong catalytic capacity; when the packing is loaded into aFenton tower to treat wastewater, the addition amount of agentia can be greatly reduced, the treatment cost is low, moreover, reaction is rapid, the effluent effect is good, and economic benefit is obvious.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and relates to a filler for a Fenton reactor, in particular to a nickel catalyst filler. Background technique [0002] The Fenton reactor has unique advantages in the treatment of refractory organic wastewater, and its treatment effect is closely related to the type and performance of the filler. Packing usually consists of a carrier and a catalyst supported on its surface. Common carriers include quartz sand, zeolite, iron-carrying ceramsite, etc., whose specific surface area is small, which affects the catalytic effect. In addition, the carrier particles have a high density and a unit volume weight. The filler cannot form a good fluidized state in the reactor, which is not conducive to chemical reaction. reaction. [0003] Chinese patent application 2017106469401 discloses "a catalytic filler for Fenton fluidized bed and its preparation method", the carrier is polypropylene or polyam...

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): B01J23/755C02F1/72C02F101/10C02F103/30C02F103/34
CPCB01J23/755C02F1/725C02F2101/105C02F2103/30C02F2103/343C02F2305/026
Inventor 邱天蒋志强史凌峰蒋渊
Owner 江苏滨元环境科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com