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Sludge catalytic oxidation treatment pump and sludge separation and quality-grading comprehensive utilization method thereof

A catalytic oxidation and sludge technology, applied in the environmental field, can solve the problems of single and inability to realize rapid separation of sludge

Active Publication Date: 2020-12-04
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The functions of these technologies are too single, and it is impossible to realize the rapid separation of various components of sludge and the comprehensive utilization of different substances.

Method used

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  • Sludge catalytic oxidation treatment pump and sludge separation and quality-grading comprehensive utilization method thereof
  • Sludge catalytic oxidation treatment pump and sludge separation and quality-grading comprehensive utilization method thereof
  • Sludge catalytic oxidation treatment pump and sludge separation and quality-grading comprehensive utilization method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Sludge Catalytic Oxidation Treatment Pump A

[0080] A sludge catalytic oxidation treatment pump A, its structure schematic diagram is shown in figure 1 , including a cutting hybrid electrocatalytic oxidizer 1, a first annular osmosis liquid adder 4, a second annular osmotic liquid adder 5, a multiphase fluid pump and a spiral pressurized catalytic oxidation extractor 3;

[0081] Among them, the multiphase fluid pump adopts the screw pump 2, the screw 21 of the screw pump 2 is made of stainless steel, the stator 22 is made of corrosion-resistant and oxidation-resistant rubber, and a cutting hybrid electrocatalytic oxidizer 1 coaxial with the pump is arranged in front of the pump. A sludge feed port 9 is provided on the cutting hybrid electrocatalytic oxidizer 1, a spiral pressurized catalytic oxidation extractor 3 coaxial with the pump is arranged behind the pump, and a second screw pump 2 and the cutting hybrid electrocatalytic oxidizer 1 are arranged between the screw...

Embodiment 2

[0098] Sludge catalytic oxidation treatment pump B

[0099] It is the same as the sludge catalytic oxidation treatment pump 1 in Example 1, except that the multiphase flow pump adopts a centrifugal pump, the oxidant adopts hydrogen peroxide, the sacrificial catalytic oxidation rod 134 adopts porous through-hole iron, and the first annular permeation liquid adder Add 6mol / L sulfuric acid solution in 4, add equal amount of mixed 1+1 phosphoric acid and 1+1 nitric acid mixed solution in the second annular osmosis liquid adder 5, finally get solid A2 and liquid A2, after the same treatment, finally Obtain liquid functional fertilizer a2, prepare porous ceramics a2 and granular fuel a2.

[0100] At the same time, the sludge catalytic oxidation treatment pump also includes a first pH measuring device 6 and a second pH measuring device 7, the first pH measuring device 6 is arranged behind the first annular osmosis liquid adder 4, and is separated from the first annular osmotic liquid...

Embodiment 3

[0102] Sludge Catalytic Oxidation Treatment Pump C

[0103] It is the same as the sludge catalytic oxidation treatment pump A in Example 3, except that the oxidant in this embodiment uses ozone, and the sacrificial catalytic oxidation rod 134 uses porous aluminum, porous iron and porous copper, and the volume The ratio is porous through-hole aluminum: porous through-hole iron: porous through-hole copper = 4:2:1, that is, in the aluminum groove 1341, the 1st, 3rd, 5th, and 7th grooves are porous through-hole aluminum, and the 2nd and 6th grooves are Porous through-hole iron, the fourth is porous through-hole copper, and the treatment method is the same; add 1mol / L oxalic acid solution in the first annular permeation liquid adder 4, and add an equal amount of Mixed 1+1 phosphoric acid and 1+1 nitric acid mixed liquid to finally obtain solid A3 and liquid A3, after the same treatment, obtain liquid functional fertilizer a3, prepare porous ceramics a3 and granular fuel a3.

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Abstract

The invention discloses a sludge catalytic oxidation treatment pump and a sludge separation and quality-grading comprehensive utilization method thereof, and belongs to the field of environment. The sludge catalytic oxidation treatment pump is composed of a cutting mixing electro-catalytic oxidizer, a heterogeneous fluid pump, a spiral pressurizing catalytic oxidation extractor, a first annular permeation liquid adding device and a second annular permeation liquid adding device which are connected in series. Pulse electricity and an oxidizing agent are used for generating a catalyst in situ, catalytic oxidation, extraction, separation and quality-divided comprehensive utilization are conducted on sludge, substances with high nitrogen and sulfur content in the sludge can be catalytically oxidized and decomposed into water-soluble substances, the water-soluble substances, nutrients and heavy metal are extracted together, after the pH value is adjusted, harmful substances such as the heavy metal are removed, and a base fertilizer of a liquid fertilizer is obtained; a porous ceramic filter material is prepared by precipitation; and extracted sludge is made into a fuel. According to themethod, separation and quality-divided comprehensive utilization of the sludge are realized.

Description

technical field [0001] The invention belongs to the field of environmental technology, and in particular relates to a sludge catalytic oxidation treatment pump and a sludge separation and quality comprehensive utilization method thereof. Background technique [0002] Sludge is a product in the process of sewage treatment. In sewage, 30-50% organic matter, 30-50% TN, and 95% TP are enriched in sludge. Sludge contains a large amount of water, organic matter composed of microbial residues, etc., and its composition is very complex. According to the analysis, the sludge is rich in protein and nutrients such as nitrogen, phosphorus and potassium. But at the same time, it also contains harmful substances such as heavy metals, polycyclic aromatic hydrocarbons, and pathogenic bacteria. If it is not handled properly, it will cause serious ecological and environmental problems. The disposal and utilization of sludge is difficult, and it is a "world problem" in sewage treatment. [...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/06C02F11/122C10L5/46
CPCC02F11/004C02F11/06C02F11/122C10L5/46Y02E50/30Y02E50/10
Inventor 张东苏会东姜承志徐文迪林远芳刘念姚俊
Owner SHENYANG LIGONG UNIV
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