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Method and device for preparing solid derived fuel through flush liberation-catalyzing carbonization of high-concentration industrial organic waste liquid

A technology of organic waste liquid and derived fuels, applied in solid fuels, biofuels, waste fuels, etc., can solve the problems of unrealistic engineering applications, difficulty in normal growth and metabolism of anaerobic bacteria, and limited effect of anaerobic methane production technology. Realize the effects of harmlessness and resource utilization, large environment and economic benefits

Active Publication Date: 2016-06-22
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For industrial organic waste liquid with extremely high concentration, poor biodegradability and certain toxicity, it is difficult for anaerobic bacteria to grow and metabolize normally. The effect of anaerobic methane production technology is limited, and it is still unable to obtain significant organic resource utilization and total emission reduction effects.
Microbial fuel cell is a new technology that has been studied in recent years. Its principle is to convert the chemical energy contained in organic matter in wastewater into electrical energy to realize resource utilization. Can stay at the stage of theory and laboratory research, unable to realize engineering application

Method used

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  • Method and device for preparing solid derived fuel through flush liberation-catalyzing carbonization of high-concentration industrial organic waste liquid
  • Method and device for preparing solid derived fuel through flush liberation-catalyzing carbonization of high-concentration industrial organic waste liquid

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Effect test

Embodiment 1

[0039] The high-concentration organic waste liquid in this example is taken from a company’s high-boiling point distillation raffinate. It is viscous in appearance and poor in water solubility. The COD is as high as hundreds of thousands mg / L. Advanced oxidation methods such as ozone and Fenton have been used in the early stage. Neither can obtain significant COD removal effect. The decompression degassing-catalytic carbonization technology proposed in this embodiment is used to treat this kind of high-concentration residual liquid. The specific methods and steps are: (1) injecting high-concentration organic waste liquid into the decompression degassing-catalytic carbonization device; (2) Pyrite powder and MnO 2 Dosing into the decompression degassing-catalytic carbonization device; the dosage of pyrite powder is 1.0g / (L organic waste liquid), MnO 2 The powder dosage is 0.1g / (L organic waste liquid); (3) Add sodium hydroxide to the device to adjust the pH of the waste liquid ...

Embodiment 2

[0043] The furfuryl alcohol production wastewater of a chemical company contains a large amount of furfuryl alcohol, phenolic aldehyde, furfural, and methanol, and the COD is as high as 200,000 to 300,000 mg / L. It is difficult to meet the discharge standard of the factory area (COD ≤ 500 mg / L) with the traditional combination of physicochemical and biochemical processes. Therefore, it is considered to convert most of the COD in wastewater into solid solid derived fuels by using the decompression degassing-catalytic carbonization method proposed in this example. The specific implementation method is: (1) inject high-concentration organic waste liquid into the decompression degassing-catalytic carbonization device; (2) catalyst pyrite powder and MnO 2 The dosage is 0.8g / (L organic waste liquid) and 0.1g / (L organic waste liquid); (3) Add sodium hydroxide to the device to adjust the pH of the waste liquid to 8.5; (3) Adjust the pH of the waste liquid to 8.5; Heat to 190°C, stir an...

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Abstract

The invention relates to a method and device for preparing solid derived fuel through flush liberation-catalyzing carbonization of high-concentration industrial organic waste liquid. The method comprises the steps of injecting high-concentration industrial organic waste liquid into a flush liberation-catalyzing carbonization device, adding a catalyst, adding NaOH to regulate the pH value, conducting heating reaction, treating generated gas with a drier, introducing treated gas into an activated carbon adsorption tank to be treated or into an incinerator to be incinerated, and then discharging the gas; naturally cooling the reaction device after reaction is finished, and opening a discharge hole to take out a powdery carburizing reaction product which is the solid derived fuel prepared from high-concentration industrial organic waste liquid. The method is simple in operation, not limited by the property of high-concentration industrial organic waste liquid, wide in application range and capable of achieving engineering easily, and is an economical and feasible method for harm-free treatment and reutilization of high-concentration industrial organic waste liquid hard to treat.

Description

technical field [0001] The invention belongs to the technical field of high-concentration refractory industrial wastewater treatment and resource utilization, and in particular relates to a method and device for preparing solid derivative fuel by decompression and degassing-catalytic carbonization of high-concentration industrial organic waste liquid. Background technique [0002] The treatment methods of high-concentration refractory industrial wastewater or waste liquid mainly include oxidation, reduction, coagulation, biochemical, etc. and their combined processes. However, for some organic wastes with extremely high COD concentration (such as high boiling point distillation raffinate and membrane separation concentrate) produced in some industrial production, the COD is often as high as hundreds of thousands mg / L. According to conventional wastewater treatment methods, it is impossible to remove It is treated until it reaches the standard discharge; while using high-end ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C10L5/46C02F101/30
CPCC02F1/04C02F1/046C02F1/66C02F9/00C02F2101/30C10L5/46C10L2290/06Y02E50/10Y02E50/30
Inventor 薛罡张文启高品李响张禾刘振鸿张凡张文娟王成薛顺利韩闯魏欣孟迪顾超超辛海霞陈畅愉成钰莹来思周甘雁飞徐小强杨帆
Owner DONGHUA UNIV