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Cooperative treatment method for waste incineration fly ash and printing and dyeing waste liquid

A technology of waste incineration fly ash and co-processing, applied in textile industry wastewater treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of high bulk density, low strength of sintered ceramsite, etc. The effect of increasing barrel pressure

Active Publication Date: 2020-11-03
浙江中陶环保科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In view of the above problems, the present invention proposes a method that can simultaneously realize the treatment of waste incineration fly ash and printing and dyeing waste liquid. While efficiently removing organic matter in printing and dyeing waste liquid, it can also solve the problem of sintered ceramsite prepared by recycling fly ash. Problems with low strength and high bulk density

Method used

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  • Cooperative treatment method for waste incineration fly ash and printing and dyeing waste liquid
  • Cooperative treatment method for waste incineration fly ash and printing and dyeing waste liquid
  • Cooperative treatment method for waste incineration fly ash and printing and dyeing waste liquid

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Embodiment 1

[0022] Effect of Voltage Gradient on Purification of Printing and Dyeing Waste Liquid and Properties of Prepared Ceramsite

[0023] Co-processing of waste incineration fly ash and printing and dyeing waste liquid: mix water and waste incineration fly ash according to the liquid-solid ratio of water and waste incineration fly ash 0.5:1 (mL:mg), stir for 0.5 hours, and then pour it into the sample area of ​​the electric device , turn on the power supply for energization treatment, where the power supply is a DC constant voltage power supply, and the energization voltage gradient is set to 0.25V / cm, 0.35V / cm, 0.45V / cm, 0.5V / cm, 1.5V / cm, 2.5V / cm cm, 2.6V / cm, 2.8V / cm, 3.0V / cm; collect the gas in the electric anode chamber and pass it into the low-temperature plasma irradiation device as the working atmosphere, turn on the low-temperature plasma irradiation device to treat the printing and dyeing waste liquid for 2 hours, and then Turn off the electric device and the low-temperature...

Embodiment 2

[0037] Effect of mass ratio of sodium phosphate, aluminum hydroxide, and near-cathode fly ash on the purification of printing and dyeing waste liquid and the performance of prepared ceramsite Co-processing of waste incineration fly ash and printing and dyeing waste liquid: according to the liquid-solid ratio of water and domestic waste incineration fly ash 1 :1(mL:mg) Mix water and waste incineration fly ash, stir for 1 hour, then pour into the sample area of ​​the electric device, turn on the power supply for energization treatment, wherein the power supply is a DC constant voltage power supply, and the energization voltage gradient is 2.5V / cm; collect the gas in the electric anode chamber and pass it into the low-temperature plasma irradiation device as the working atmosphere, turn on the low-temperature plasma irradiation device to treat the printing and dyeing waste liquid for 4 hours, then turn off the electric device and low-temperature plasma irradiation device to obtain...

Embodiment 3

[0045] Effects of cathodic fly ash adsorbent and primary printing and dyeing waste disposal liquid-solid-liquid ratio on the purification of printing and dyeing waste liquid and the performance of prepared ceramsite

[0046] Co-processing of waste incineration fly ash and printing and dyeing waste liquid: mix water and waste incineration fly ash according to the liquid-solid ratio of water and domestic waste incineration fly ash 1.5:1 (mL:mg), stir for 1.5 hours, and then pour into the electric device sample In the area, turn on the power supply for energization treatment, wherein the power supply is a DC constant voltage power supply, and the energization voltage gradient is 2.5V / cm; collect the gas in the electric anode chamber and pass it into the low-temperature plasma irradiation device as the working atmosphere, and turn on the low-temperature plasma irradiation device for printing and dyeing. The waste liquid was treated for 6 hours, and then the electric device and the ...

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Abstract

The invention discloses a cooperative treatment method for waste incineration fly ash and printing and dyeing waste liquid. The method comprises the following steps: (1) mixing and stirring water andwaste incineration fly ash, and pouring a mixture into an electric device for electrifying treatment; (2) collecting gas in an electric anode chamber, introducing the gas into a low-temperature plasmairradiation device as action atmosphere, and carrying out low-temperature plasma irradiation treatment on the printing and dyeing waste liquid to obtain primary printing and dyeing waste liquid treatment liquid; (3) digging out fly ash in a near-cathode sample area of the electric device to obtain near-cathode fly ash slurry, mixing and stirring sodium phosphate, aluminum hydroxide and the near-cathode fly ash slurry, and carrying out low-temperature plasma irradiation, drying, grinding and sieving to obtain a cathode fly ash adsorbent; and (4) mixing and stirring the cathode fly ash adsorbent and the primary printing and dyeing waste liquid treatment liquid, carrying out solid-liquid separation to obtain printing and dyeing waste liquid purification liquid and organic fly ash slurry, andgranulating, drying, sintering and cooling the organic fly ash slurry to obtain fly ash-based sintered ceramsite. According to the cooperative treatment method, purification of the printing and dyeing waste liquid and resource utilization of the waste incineration fly ash can be simultaneously realized.

Description

technical field [0001] The invention relates to the technical field of industrial pollutant disposal and resource utilization, in particular to a method for synergistic treatment of waste incineration fly ash and printing and dyeing waste liquid. Background technique [0002] Textile, cosmetic, food and other fields tend to produce a large amount of organic printing and dyeing waste liquid in the production process. Usually printing and dyeing waste discharges a large amount and contains a variety of toxic and harmful organic dyes that are difficult to degrade, which will cause irreversible damage to the surrounding ecological environment and endanger the health of residents. Printing and dyeing wastewater can also block photosynthetic bacteria and Aquatic plants carry out photosynthesis and disturb the ecological balance. At present, the technologies for treating printing and dyeing waste liquid mainly include adsorption method, biological method, photocatalytic method and...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00C02F9/08C02F103/30
CPCB09B3/00B09B5/00C02F1/281C02F1/30C02F2305/02C02F2103/30B09B2101/30
Inventor 黄涛宋东平金俊勋刘龙飞周璐璐
Owner 浙江中陶环保科技集团有限公司
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