Spiral scraping dosing mixing catalytic oxidizer and sludge utilization method

A catalytic oxidizer and catalytic oxidation technology, applied in the environmental field, can solve problems such as hazards and non-substantial utilization

Pending Publication Date: 2020-12-08
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the material is not used in a qualitative manner, and impurities and heavy metals will be released during preparation or use, causing harm

Method used

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  • Spiral scraping dosing mixing catalytic oxidizer and sludge utilization method
  • Spiral scraping dosing mixing catalytic oxidizer and sludge utilization method
  • Spiral scraping dosing mixing catalytic oxidizer and sludge utilization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] This embodiment provides a spiral scraping and dosing mixed catalytic oxidizer.

[0092] A spiral scraping and dosing mixed catalytic oxidizer, its structure diagram is shown in figure 1 , figure 2 and image 3 The spiral scraping and dosing mixed catalytic oxidizer includes a spiral scraping and dosing mixed catalytic oxidizer housing 1, a spiral scraping and pushing mixing knife 2, a semi-sacrificial catalytic oxidation dosing device 3 and a driving motor 4;

[0093] One end of the shell 1 of the spiral scraping and dosing mixed catalytic oxidizer is provided with a feed liquid inlet 11, and the other end is provided with a variable pressure outlet 5; at the end where the feed liquid inlet is provided, a drive motor 4 is provided, and the drive motor 4 and the spiral scraping pusher are provided. The mixing knife 2 is coaxially connected, the driving motor 4 is used to drive the spiral scraping and pushing, the mixing knife 2 rotates and cuts, and the semi-sacrific...

Embodiment 2

[0119] This embodiment provides a sludge utilization device and a sludge utilization method.

[0120] This embodiment provides a sludge utilization equipment, including the spiral scraping and dosing mixed catalytic oxidizer of embodiment 1, and also includes a sludge pump and a solid-liquid separation device; wherein the discharge port of the sludge pump and the spiral scraping and dosing The feed liquid inlet 11 of the mixed catalytic oxidizer is connected, and the solid-liquid separation device is connected with the variable pressure outlet 5 of the spiral scraping and dosing mixed catalytic oxidizer.

[0121] A method for sludge utilization, using the above sludge utilization equipment, comprising the following steps:

[0122] step one:

[0123] Turn on the sludge pump and the drive motor 4 of the device. Under the action of the pump pressure, the sludge enters the spiral scraping and dosing mixed catalytic oxidizer from the feed liquid inlet 11, and the spiral scraping p...

Embodiment 3

[0140] This example provides a method for preparing a sludge-based catalyst.

[0141] Utilize the spiral scraping dosing mixed catalytic oxidizer of embodiment 1, according to the use method of embodiment 2, process the excess sludge discharged from a certain municipal sewage treatment plant, the mass percentage content of the first agent supply system is used in the first agent tank Be 30% hydrogen peroxide; Fill the saturated solution of the 3mol / L sulfuric acid solution of ferrous sulfate in the second medicament tank of the second medicament supply system; The ozone generator maximum production ozone amount of the 3rd medicament supply system is the oxygen of 10g / h Source adjustable ozone generator, the amount of ozone is 6g / h. Liquid fertilizer 2 and sludge-based catalyst 2 were prepared.

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Abstract

The invention discloses a spiral scraping dosing mixing catalytic oxidizer and a sludge utilization method, and belongs to the field of environment. A feed liquid inlet is formed in one end of a spiral scraping dosing mixing catalytic oxidizer shell, and a variable-pressure discharge port is formed in the other end of the spiral scraping dosing mixing catalytic oxidizer shell; a driving motor coaxially connected with a spiral scraping and pushing mixing knife is arranged at the feed liquid inlet end and used for driving the spiral scraping and pushing mixing knife to conduct rotary cutting, one end of a semi-sacrificial catalytic oxidation doser is inserted into the spiral scraping and dosing mixing catalytic oxidizer shell, and a catalyst is generated through in-situ cutting while liquidmedicine is provided. The sludge utilization method comprises the following steps: carrying out gradient structure reaction on a medicament added by a semi-sacrificial catalytic oxidation doser and sludge, carrying out catalytic oxidation on the sludge by generating a catalyst in real time, treating the sludge, carrying out catalytic oxidation decomposition on components with high nitrogen and sulfur contents in the sludge to prepare a fertilizer, carrying out solid-phase carbonization in the sludge, and combining with the catalyst. Therefore, a novel composite catalyst is obtained, and the comprehensive utilization of sludge is realized.

Description

technical field [0001] The invention belongs to the field of environmental technology, and in particular relates to a spiral scraping and dosing mixed catalytic oxidizer and a sludge utilization method. Background technique [0002] The excess sludge discharged from municipal sewage treatment plants contains a large amount of water and organic matter composed of microbial residues. Although it is rich in protein and nutrients such as nitrogen, phosphorus, and potassium, it also contains harmful substances such as heavy metals, polycyclic aromatic hydrocarbons, and pathogenic bacteria. Substances are very complex. 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 the most important part of sewage treatment. [0003] At present, the main methods of sludge treatment are sanitary landfill, composting and incineration. Among them, sanitary landfill accounts for the largest p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/06B01J23/78B01D53/86C02F1/72
CPCC02F11/06B01J23/78B01D53/86C02F1/725
Inventor 张东姜承志徐文迪苏会东辛小林王赫轮姚俊
Owner SHENYANG LIGONG UNIV
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