Processing method and equipment for softening hard water through electric flocculation

A treatment method and technology of treatment equipment, applied in the direction of flocculation/sedimentation water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc. problem, to solve the low hardness removal rate, improve the hardness removal rate, and strengthen the removal effect.

Inactive Publication Date: 2016-03-23
CHENGDU FILTRASCALE TECH
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electroflocculation device gradually deposits impurities and metal ions in the water on the cathode through electrochemical reactions, and various components and compounds will tend to find the most stable state under the action of current, thus forming a non-colloid or non-dissolved state. solid matter, but a single electrocoagulation technique is poorly effective in removing soluble calcium and magnesium ions from wastewater
[0004] At present, various technologies such as chemical precipitation, ion exchange, nanofiltration, reverse osmosis, electrodialysis, and reverse electrodialysis can be applied to the softening of hard water, but each treatment technology has its limitations: 1) The ion exchange method is Use a specific cation exchange resin to replace the calcium and magnesium ions in the water with sodium ions, thereby avoiding the formation of scale with the increase of temperature. This method can reduce the hardness of water to 0, but the price of cation exchan

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
  • Processing method and equipment for softening hard water through electric flocculation
  • Processing method and equipment for softening hard water through electric flocculation
  • Processing method and equipment for softening hard water through electric flocculation

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0058] Example 1

[0059] Using the method and equipment of the present invention to process hard water with a hardness of 800 ppm and a volume of 100 L, such as Figure 2-Figure 4 As shown, the equipment of this embodiment: includes an alkali addition reaction tank 11, an electric flocculation reaction tank 16, an inclined tube sedimentation tank 15 and a media filtration system 17, wherein there is a partition a18 between the alkali addition reaction tank 11 and the electric flocculation reaction tank 16. There is a partition b19 between the electric flocculation reaction tank 16 and the inclined tube sedimentation tank 15, and a partition c20 is arranged between the alkali addition reaction tank 11 and the inclined tube sedimentation tank 16, the alkali addition reaction tank 11, the electric flocculation reaction tank 16 and the inclined tube sedimentation tank 16 The tube sedimentation tank 15 is a complete set; the electro-flocculation reaction tank 16 is equipped with an e...

Example Embodiment

[0066] Example 2

[0067] Using the method and equipment of the present invention to treat hard water with a hardness of 1000 ppm and a volume of 100 L, such as Figure 2-Figure 4 As shown, the equipment of this embodiment: includes an alkali addition reaction tank 11, an electric flocculation reaction tank 16, an inclined tube sedimentation tank 15 and a media filtration system 17, wherein there is a partition a18 between the alkali addition reaction tank 11 and the electric flocculation reaction tank 16. There is a partition b19 between the electric flocculation reaction tank 16 and the inclined tube sedimentation tank 15, and a partition c20 is arranged between the alkali addition reaction tank 11 and the inclined tube sedimentation tank 16, the alkali addition reaction tank 11, the electric flocculation reaction tank 16 and the inclined tube sedimentation tank 16 The tube sedimentation tank 15 is a complete set; the electro-flocculation reaction tank 16 is equipped with an e...

Example

[0075] Comparative implementation 1:

[0076] (1) Pass the hard water into the alkali-adding reaction tank 11, and then add 2.0 mol of sodium hydroxide and sodium carbonate to the alkali-adding reaction tank 11 in a 2:1 mixed precipitant, and aerate at the same time to make the hard water Ca in 2+ , Mg 2+ Generate suspended particles;

[0077] (2) As the water level in the alkali-adding reaction tank 11 gradually rises, the water containing suspended particulates in step (1) overflows the partition a and flows into the electro-flocculation reaction tank 16. The electro-flocculation is not used to make the suspended particulates become Large particles;

[0078] (3) As the water level in the electro-flocculation reaction tank 16 gradually rises, the water in the electro-flocculation reaction tank 16 overflows from the partition b into the inclined tube sedimentation tank 15 for precipitation, and the supernatant is obtained;

[0079] (4) As the water level in the inclined tube sediment...

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
Hardnessaaaaaaaaaa
Hardnessaaaaaaaaaa
Hardnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of hard water softening treatment, and discloses a processing method and equipment for softening hard water through flocculation. The method orderly integrates a chemical precipitation method, an inclined tube precipitation method, and an electrodialysis technology, thus has a prominent effect on processing hard water, and has the advantages of low cost, simple process, large hardness reduction, and wide application range. In the equipment, an alkali feeding reaction tank, an electric flocculation reaction tank, an inclined tube precipitation tank, and a medium filtering system cooperate with each other to process hard water; the hard water is processed in the units mentioned above in sequence and is delivered among the units through overflowing; the hard water is effectively softened, the effect is good, the application range is wide, moreover, the water pump is not used, and the energy consumption is saved.

Description

technical field [0001] The invention relates to the technical field of hard water softening treatment, in particular to a treatment method and equipment for electrocoagulation softening hard water. Background technique [0002] The hardness of water is usually measured by converting all the salts in the water into calcium carbonate. As an important water quality index, hardness has attracted widespread attention in drinking water and industrial water. In daily life, the hardness of water is too high, and it can make the soap not foam and cause waste when used for washing; washing clothes with hard water can easily make the textile fibers hard and brittle and damaged; bathing with hard water and washing hair can cause astringent hair Sticky feeling; boiling beans and meat with hard water is not easy to cook; boiling water with hard water will easily cause scaling in the kettle, wasting more than 1 / 3 of fuel. In terms of human health, drinking high-hardness water is likely to...

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): C02F9/06
CPCC02F9/00C02F1/001C02F1/24C02F1/463C02F1/4693C02F1/52C02F2303/22
Inventor 欧群飞赵勤张杨
Owner CHENGDU FILTRASCALE TECH
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