A preparation method of alloy active coke catalytic filler for advanced treatment of industrial wastewater

A catalytic packing and advanced treatment technology, which is applied in the field of environmental pollution control, can solve the problems of no packing suitable for industrial wastewater advanced treatment, no industrial wastewater advanced treatment technology, and high technical difficulty, so as to enhance the ability of multi-metal catalytic reduction and shorten the residence time. The effect of low time and operating costs

Inactive Publication Date: 2016-11-16
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is quite difficult to achieve discharge standards. So far, there is no advanced treatment technology for industrial wastewater, let alone fillers suitable for advanced treatment of industrial wastewater.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of alloy active coke catalytic filler for advanced treatment of industrial wastewater:

[0028] (1) Weigh 500g of waste coke, place it in a hydrothermal pot containing 1L of water, control the temperature at 50°C, add 5mL of concentrated HCl and 1mL of hydrogen peroxide, activate by hydrothermal for 2.5h, dry at 70°C after activation, and dry 8h, forming solid active coke.

[0029] (2) Configure 400mL impregnation solution, which contains Co 2+ 2.5g, Ni 2+ 4.0g, Mn 2+ 2.5g, Zn 2+ 1.0g, Cu 2+ 2.5g. Put the solid active coke in the impregnation solution, ultrasonicate at 30kHz for 24h, then add 100g of scrap iron filings to the solution, and then add Ca(OH) 2 10g, heat the solution to 60°C at a heating rate of 0.5°C / min, and stir at 20rpm until it becomes a paste.

[0030] (3) Dry the paste at 100°C for 6 hours and sinter at 300°C for 12 hours. Nylon material with a mesh number of 10 mesh is used to wrap and mold to form an alloy active c...

Embodiment 2

[0033] A preparation method of alloy active coke catalytic filler for advanced treatment of industrial wastewater:

[0034] (1) Weigh 500g of waste coke, place it in a hydrothermal pot containing 1L of water, control the temperature at 90°C, add 5mL of concentrated HCl and 10mL of hydrogen peroxide, activate it by hydrothermally for 0.5h, and dry it at 120°C after activation. 2h, forming solid active coke.

[0035] (2) Configure 2400mL impregnation solution, which contains Co 2+ 22.5g, Ni 2+ 25.0g, Mn 2+ 15.0g, Zn 2+ 10.0g, Cu 2+ 10.0g. Put the solid active coke in the impregnation solution, ultrasonicate at 60kHz for 4h, then add 400g of scrap iron filings to the solution, then add 40g of KOH to the solution, heat the solution to 60°C at a heating rate of 5°C / min, at 100rpm Blend until smooth.

[0036] (3) Dry the paste at 120°C for 2 hours and sinter at 500°C for 4 hours. The PE material with a mesh number of 50 mesh is used for wrapping and molding to form an a...

Embodiment 3

[0039] A preparation method of alloy active coke catalytic filler for advanced treatment of industrial wastewater:

[0040] (1) Weigh 500g of waste coke, place it in a hydrothermal pot containing 1L of water, control the temperature at 70°C, add 5mL of concentrated HCl and 5mL of hydrogen peroxide, activate it by hydrothermally for 1.5h, dry it at 95°C after activation, and dry 5h, forming solid active coke.

[0041] (2) Configure 1200mL impregnation solution, which contains Co 2+ 12.5g, Ni 2+ 15.0g, Mn 2+7.5g, Zn 2+ 5.0g, Cu 2+ 7.0g. Put the solid active coke in the impregnation solution, ultrasonicate at 45kHz for 12h, then add 250g of scrap iron filings to the solution, then add 25g of NaOH to the solution, heat the solution to 60°C at a heating rate of 3°C / min, at 60rpm Beat until smooth.

[0042] (3) Dry the paste at 110°C for 4 hours and sinter at 400°C for 8 hours. The PVC material with a mesh number of 30 mesh is used for wrapping and molding to form an all...

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PUM

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Abstract

The invention discloses a preparation method of alloy active coke catalytic packing for deep processing industrial wastewater. Raw materials for preparing the packing include coke, a multi-metal-ion solution, scrap iron, alkali and the like. The preparation method comprises the following steps: activating and drying waste coke so as to form solid active coke; dipping the solid active coke into the multi-metal-ion solution, adding scrap iron and alkali, stirring slowly to be pasty, drying and sintering so as to form the alloy active coke catalytic packing. The packing can intensify the deep oxidation treatment effect of ozone, hydrogen peroxide and active sludge for organisms; the start is rapid; the packing is slow in passivation and consumption speed; raw materials of catalytic packing are available, the assembling is convenient, and the cost is low.

Description

technical field [0001] The invention relates to an environmental chemical material, in particular to a method for preparing an alloy active coke catalytic filler for advanced treatment of industrial wastewater, and belongs to the technical field of environmental pollution control. Background technique [0002] With the rapid development of the chemical industry, industrial wastewater treatment is the most effective way to alleviate environmental pollution. In order to implement the national policy of energy conservation and emission reduction, the discharge standards of industrial wastewater are generally raised (Class B standard: COD<60mg / L; NH 4 + -N<8 mg / L). However, the water quality of chemical wastewater is complex, especially with many refractory substances. The existing printing and dyeing and chemical wastewater treatment processes can only degrade COD to 140mg / L (China Water Supply and Drainage, 2011, 27 (15) 32-34), which is very important Further in-dept...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/72C02F1/78C02F3/12C02F3/10B01J23/889
CPCB01J20/02B01J20/0222B01J20/0229B01J20/0237B01J20/0244B01J20/20B01J23/002B01J23/8892B01J2220/42B01J2220/4806B01J2220/4875B01J2523/00C02F1/722C02F1/725C02F1/78C02F3/106C02F3/107C02F3/12B01J2523/17B01J2523/845B01J2523/847B01J2523/72B01J2523/27B01J2523/23B01J2523/13B01J2523/12Y02W10/10
Inventor 陈红李响薛罡张文启高品刘亚男刘振鸿王成张凡张禾
Owner DONGHUA UNIV
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