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Process and equipment for modifying waste water filler material and process for treating waste water

A packing material and wastewater technology, applied in water/sewage treatment, water treatment parameter control, water/sewage multi-stage treatment, etc., can solve problems such as unstable quality, short service life, low operational performance reliability, etc. The effect of many, cheap, large specific surface area

Active Publication Date: 2022-04-26
苏州汇博龙环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is no standard and modular modification process and equipment for the modification technology of existing fiber bundles or fiber balls. In order to have a modified material process that is more suitable for reactions in high acid and alkali, high temperature, high pressure, corrosive media, and high oily environments and equipment, to change the drawbacks of the original modified materials, such as low reliability of equipment operation performance, short service life and unstable quality, to invent a standard and modular modification process and equipment for water treatment packing materials has great technical significance and environmental value

Method used

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  • Process and equipment for modifying waste water filler material and process for treating waste water
  • Process and equipment for modifying waste water filler material and process for treating waste water
  • Process and equipment for modifying waste water filler material and process for treating waste water

Examples

Experimental program
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Effect test

Embodiment 1

[0051] A device for modifying waste water filler materials, comprising:

[0052] Alkaline hydrogen peroxide reaction tank, alkaline hydrogen peroxide rinsing tank, acidic hydrogen peroxide reaction tank, acidic hydrogen peroxide rinsing tank, oily reaction tank, oily rinsing tank, dehydration device and drying device. Stainless steel baskets with holes are all arranged in the alkaline hydrogen peroxide reaction tank, the acid hydrogen peroxide reaction tank and the oily reaction tank. The alkaline hydrogen peroxide reaction tank, the acidic hydrogen peroxide reaction tank and the oily reaction tank are all stainless steel tanks with automatic feeding and temperature control systems, with a diameter of 1000-2000mm and a height of 1500-2500mm. The alkaline hydrogen peroxide rinsing tank, the acidic hydrogen peroxide rinsing tank and the oily rinsing tank are all stainless steel tanks, with a diameter of 1500-2000mm and a height of 2000-2500mm. The diameter of the stainless stee...

Embodiment 2

[0054] A kind of technology of wastewater filler material modification, utilizes the equipment of embodiment 1 to carry out following steps:

[0055] Step 1, take 1.17 tons of polypropylene fiber bundles with 161dtex / 50f and single fineness of 3.43dtex, and use alkaline hydrogen peroxide method to process, preferably the alkali is sodium hydroxide;

[0056] Step 2, using the alkaline hydrogen peroxide method to treat and rinse;

[0057] Step three, dehydration and drying.

[0058] The alkaline hydrogen peroxide evaporated and lost liquid in the step 1 is supplemented by the rinsing liquid after the rinsing in the step 2 is completed.

[0059] In the first step, the reaction time is 28h, the reaction temperature is 70°C, the amount of hydrogen peroxide is 10g / L, sodium hydroxide is 3% (w / w), and the liquid-solid ratio (weight-to-volume ratio of polypropylene fiber bundles to alkaline hydrogen peroxide solution) 1:1.

[0060] In the second step, the rinsing time is 6h, the ri...

Embodiment 3

[0063] A kind of technology of wastewater filler material modification, utilizes the equipment of embodiment 1 to carry out following steps:

[0064] Step 1, take 1.17 tons of polypropylene fiber bundles with 161dtex / 50f and single fineness of 3.43dtex, and use alkaline hydrogen peroxide method to process, preferably the alkali is sodium hydroxide;

[0065] Step 2, using the alkaline hydrogen peroxide method to treat and rinse;

[0066] Step 3, using acidic hydrogen peroxide to carry out acidic hydrogen peroxide treatment, preferably the acid is sulfuric acid;

[0067] Step 4, using acidic hydrogen peroxide method to treat and rinse;

[0068] Step five, dehydration and drying.

[0069] The alkaline hydrogen peroxide evaporation and loss solution in step 1 is supplemented by the rinsing solution after rinsing in step 2; the acidic hydrogen peroxide evaporation and loss solution in step 3 is supplemented by the rinsing solution in step 4 after rinsing.

[0070] In the first s...

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Abstract

The invention discloses a process for modifying waste water filler materials, equipment and a process for treating waste water. The process comprises the following steps: step 1, taking fiber bundles or fiber balls, and treating them with alkaline hydrogen peroxide, preferably sodium hydroxide; step 2, treating and rinsing with alkaline hydrogen peroxide; and step 3, dehydrating and drying. Polypropylene fibers and other types of fibers can be treated with alkaline hydrogen peroxide and acidic hydrogen peroxide to make the fibers have different degrees of hydrophilic characteristics. Finally, the acetic anhydride or fatty acid chloride method is used to modify the lipophilicity of the fibers. The adsorption performance has increased by 100-400%. The material has very small porosity characteristics, larger specific surface area, and the superimposed filter layer has very small gaps, and the superimposed oil-friendly filter layer intercepts oil very well. It is a good filter material for residual oil treatment in wastewater.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a process for modifying waste water filler materials, equipment and a process for treating waste water. Background technique [0002] Surface modification technology in a broad sense is a type of heat treatment technology that uses chemical and physical methods to change the chemical composition or organizational structure of the material or workpiece surface to improve material performance or machine parts. The surface modification of water treatment materials refers to giving new properties to the surface, such as lipophilicity, hydrophilicity, biocompatibility, antistatic performance, dyeing performance, etc., on the premise of maintaining the original internal properties of materials or products. There are many reports on surface modification methods, which can be roughly summarized as: surface chemical reaction method, surface grafting method, surface compounding method,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10B01D17/022B01J20/28B01J20/32C02F1/28C02F9/14C02F101/16C02F101/32C02F101/30
CPCC02F3/108B01D17/0202B01J20/28011B01J20/28023B01J20/32C02F1/285C02F9/00C02F2209/06C02F2209/08C02F2209/14C02F2209/16C02F2209/10C02F1/24C02F1/40C02F2101/16C02F2101/32C02F2101/30Y02W10/10
Inventor 刘景明刘婉婷
Owner 苏州汇博龙环保科技有限公司