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

Preparation method of ferrous-per-disulfide-based composite remover

A remover, iron disulfide technology, applied in chemical instruments and methods, water/sludge/sewage treatment, water pollutants, etc., can solve problems such as inability to achieve high-efficiency disposal goals, and achieve low chemical loss and low preparation costs , Efficient removal effect

Inactive Publication Date: 2019-04-12
SHAOXING ENVIRONREM ENVIRONMENTAL TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when dealing with waste liquid containing both heavy metal pollutants and organic pollutants, it is impossible to achieve the goal of efficient disposal when using physicochemical adsorption or advanced oxidation technology.

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
  • Preparation method of ferrous-per-disulfide-based composite remover
  • Preparation method of ferrous-per-disulfide-based composite remover
  • Preparation method of ferrous-per-disulfide-based composite remover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Mn 2+ with Fe 2+ Effect of molar ratio on water treatment effect

[0018] In this case for Mn 2+ with Fe 2+ The molar ratio was tested to study the effect of the prepared remover on Cu in water 2+ 、Co 2+ 、Cd 2 + 、Cr 6+ , 1,4-dichlorobenzene, 1,2,4-trichlorobenzene removal rate.

[0019] According to Mn 2+ with Fe 2+ Molar ratio 0.1:1, 0.5:1, 0.8:1, 1:1, 1:2, 1:3, 1:4, 1:5, 1:5.5, 1:6 respectively weigh manganese sulfate and ferrous sulfate , mixed into water at the same time, and stirred until completely dissolved in a sealed state to obtain a mixed iron-manganese solution; press OH - with Fe 2+ Molar ratio 2:1 Weigh sodium hydroxide, mix it into water, and stir until completely dissolved in a sealed state to obtain lye; mix the lye into the mixed iron-manganese solution, and stir for 10 minutes in a sealed state to obtain iron-manganese two-phase hydrogen Oxide pulp; under the conditions of 30°C temperature and -0.08MPa relative vacuum, dry the ...

Embodiment 2

[0027] Example 2: OH - with Fe 2+ Effect of molar ratio on water treatment effect

[0028] In this case for OH - with Fe 2+ The molar ratio was tested to study the effect of the prepared remover on Cu in water 2+ 、Co 2+ 、Cd 2 + 、Cr 6+ , 1,4-dichlorobenzene, 1,2,4-trichlorobenzene removal rate.

[0029] According to Mn 2+ with Fe 2+ Weigh manganese sulfate and ferrous sulfate at a molar ratio of 1:4, mix them into water at the same time, and stir until completely dissolved in a sealed state to obtain a mixed iron-manganese solution. Press OH - with Fe 2+ Molar ratio 0.1:1, 0.5:1, 1:1, 1.5:1, 1.8:1, 2:1, 3:1, 3.2:1, 3.5:1, 3.8:1, 4:1, 4.2:1, 4.5:1, 4.8:1, 5:1, 5.5:1, 6:1 Weigh sodium hydroxide respectively, mix it into water, and stir until completely dissolved in a sealed state to obtain lye. The lye is mixed into the mixed iron-manganese solution, and stirred for 20 minutes in a sealed state to obtain iron-manganese two-phase hydroxide slurry. Under the conditio...

Embodiment 3

[0037] Embodiment 3: the influence of sodium peroxodisulfate addition amount on water body treatment effect

[0038] In this case, experiments were carried out on the mass ratio of sodium peroxodisulfate to iron-manganese two-phase hydroxide powder, and the effect of the removal agent on Cu in water was studied. 2+ 、Co 2+ 、Cd 2+ 、Cr 6+ , 1,4-dichlorobenzene, 1,2,4-trichlorobenzene removal rate.

[0039] According to Mn 2+ with Fe 2+ Weigh manganese sulfate and ferrous sulfate at a molar ratio of 1:4, mix them into water at the same time, and stir until completely dissolved in a sealed state to obtain a mixed iron-manganese solution. Press OH - with Fe 2+ The molar ratio is 3:1. Weigh sodium hydroxide, mix it into water, and stir until completely dissolved in a sealed state to obtain lye. The lye is mixed into the mixed iron-manganese solution, and stirred for 30 minutes in a sealed state to obtain iron-manganese two-phase hydroxide slurry. Under the conditions of temp...

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 provides a preparation method of a ferrous-per-disulfide-based composite remover, and belongs to the technical field of waste water treatment. A mixed ferro-manganese solution is prepared, alkali liquor is prepared, the alkali liquor is mixed in the mixed ferro-manganese solution, and ferro-manganese two-phase hydroxide ore pulp is obtained; the ore pulp is vacuum-dried to achieve constant mass, the ore pulp is ground, and ferro-manganese two-phase hydroxide is obtained; sodium per-disulfide is added, the materials are ground, and ferro-manganese disulfide hydroxide powder is obtained; complexing iron powder is added into the ferro-manganese disulfide hydroxide powder, and the finished ferrous-per-disulfide-based composite remover is obtained. The composite remover is appliedto water body treatment, and the requirements of treatment of an acidic water body, an alkaline water body and a neutral water body can be simultaneously met.

Description

technical field [0001] The application relates to a preparation method of a persulfide-based composite remover, which belongs to the technical field of wastewater treatment. Background technique [0002] With the rapid development of industry, the composition of wastewater is becoming more and more complicated, especially the pollution of refractory chlorobenzene compounds and heavy metals. For the treatment of organic pollutants, advanced oxidation technology is currently widely used. It began in the 1980s. It generates high-potential free radicals under catalysis to oxidize and decompose refractory organic substances in water bodies to achieve the degradation of organic pollutants. [0003] Currently commonly used advanced oxidation technologies mainly include: Fenton method, photocatalytic oxidation method, ultrasonic radiation oxidation method, electrochemical oxidation method, ozone oxidation method, etc. Generally speaking, these advanced oxidation technologies have h...

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): C02F1/28C02F1/72C02F1/48C02F101/20C02F101/22C02F101/36
CPCC02F1/281C02F1/48C02F1/72C02F2101/20C02F2101/22C02F2101/36
Inventor 黄涛罗春晖刘龙飞徐娇娇宋东平
Owner SHAOXING ENVIRONREM ENVIRONMENTAL TECH CO LTD
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