Unlock instant, AI-driven research and patent intelligence for your innovation.

Treatment method of phenol wastewater

A treatment method and wastewater technology, applied in water/sewage treatment, oxidized water/sewage treatment, special compound water treatment, etc., can solve problems such as hindering application, long degradation time, and complicated treatment, and achieve large saturated adsorption capacity and preparation Mild conditions and good separation effect

Inactive Publication Date: 2020-06-12
ANHUI JINMEI ZHONGNENG CHEM IND +1
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, there are many problems as follows, which hinder its application in the degradation of phenol wastewater: the mode of only using electrochemical method to treat industrial phenol wastewater is too single, so it lacks guidance for the application of actual industrial production process; (2) Due to the low efficiency of electrocatalysis of electrochemical technology, it leads to the disadvantages of long degradation time and high energy consumption; and once the electrode is used improperly, it is easy to be corroded and its life is shortened, and the electrode with more stable chemical properties is due to its The cost is high and it is not suitable for long-term and extensive use; the electrochemical reactor also has disadvantages such as easy fouling, which have become important factors hindering the application of this technology in the industrial field
It can be seen from the above that, as a kind of organic polluted wastewater that is difficult to degrade, the treatment of phenolic wastewater is very complicated, and it is difficult to treat it with a single technology

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Treatment method of phenol wastewater
  • Treatment method of phenol wastewater
  • Treatment method of phenol wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of Modified Diatomite

[0027] Weigh 20g of diatomite (Tianjin Beichen Founder Reagent Factory), wash with distilled water 3 times, add 100mL, 1mol / L HCl solution after filtration, stir for 0.5h, let stand for 12h, wash with distilled water to pH≈7, ultrasonic 0.5 h, after drying at 80°C, the samples are placed in a sample bag for later use.

[0028] Preparation of MgO / diatomite

[0029] Weigh 2.50g of magnesium acetate in a beaker containing 50mL of distilled water, after the magnesium acetate is dissolved, add 1.00g of modified diatomite to the beaker, stir, evaporate to dryness in a 50°C water bath, and place it in a muffle furnace at 400 ℃. calcined at ℃ for 2 h, cooled to room temperature, and ground to obtain MgO / diatomite with a mass percentage of MgO of 33%.

[0030] Bi 2 WO 6 Preparation of photocatalysts

[0031] Preparation of Bi by Hydrothermal Method 2 WO 6 . The specific experimental operation is as follows: Weigh 3.64g Bi(NO 3 ) 3 ·5...

Embodiment 2

[0035]Preparation of Modified Diatomite

[0036] Weigh 20g of diatomite (Tianjin Beichen Founder Reagent Factory), wash with distilled water 3 times, add 100mL, 1mol / L HCl solution after filtration, stir for 0.5h, let stand for 12h, wash with distilled water to pH≈7, ultrasonic 0.5 h, after drying at 80°C, the samples are placed in a sample bag for later use.

[0037] Preparation of MgO / diatomite

[0038] Weigh 5 g of magnesium acetate in a beaker containing 50 mL of distilled water, after the magnesium acetate is dissolved, add 1.00 g of modified diatomaceous earth to the beaker, stir, evaporate to dryness in a 50 ℃ water bath, and heat it in a muffle furnace at 500 ℃ After calcining for 2 hours, cooling to room temperature, and grinding to obtain MgO / diatomite with a mass percentage of MgO of 50%.

[0039] Bi 2 WO 6 Preparation of photocatalysts

[0040] Preparation of Bi by Hydrothermal Method 2 WO 6 . The specific experimental operation is as follows: Weigh 3.64g B...

Embodiment 3

[0044] Preparation of Modified Diatomite

[0045] Weigh 20g of diatomite (Tianjin Beichen Founder Reagent Factory), wash with distilled water 3 times, add 100mL, 1mol / L HCl solution after filtration, stir for 0.5h, let stand for 12h, wash with distilled water to pH≈7, ultrasonic 0.5 h, after drying at 80°C, the samples are placed in a sample bag for later use.

[0046] Preparation of MgO / diatomite

[0047] Weigh 5 g of magnesium acetate into a beaker containing 50 mL of distilled water, after the magnesium acetate is dissolved, add 1.00 g of modified diatomaceous earth to the beaker, stir, evaporate to dryness in a 50°C water bath, and heat it in a muffle furnace at 700°C. After calcining for 1 h, cooling to room temperature, and grinding to obtain MgO / diatomite with a mass percentage of MgO of 50%.

[0048] Bi 2 WO 6 Preparation of photocatalysts

[0049] Preparation of Bi by Hydrothermal Method 2 WO 6 . The specific experimental operation is as follows: Weigh 3.64g B...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a treatment method of phenol wastewater. The treatment method comprises the following steps: preparing MgO / diatomite: mixing magnesium salt and modified diatomite, grinding, and calcining and grinding to obtain MgO / diatomite; preparing a Bi2WO6 photocatalyst: dissolving bismuth salt into an acid solution, preparing Bi2WO6 from the bismuth salt and tungsten salt by adoptinga hydrothermal method, and then centrifugally drying and grinding to obtain the Bi2WO6 photocatalyst; and taking phenol wastewater, adding the MgO / diatomite and the Bi2WO6 photocatalyst prepared in the previous step into the phenol wastewater, and continuously stirring for degradation reaction. The nano Bi2WO6 photocatalytic oxidation technology and the MgO / diatomite adsorption technology are combined and applied to treatment of phenol wastewater, and the combination of the Bi2WO6 photocatalyst and MgO / diatomite adsorption also generates a synergistic enhancement effect in a combined system while exerting respective effects.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a method for treating phenol wastewater. Background technique [0002] At present, the discharge of a large amount of phenolic wastewater has caused serious damage to human health and the ecological environment. Therefore, the removal of phenolic pollutants in water has become one of the key research topics of global researchers. In the current research, domestic and foreign phenol wastewater treatment methods mainly include physical method, biological method, chemical oxidation method and electrochemical method. The physical method uses the method of physical separation to collect the phenol in the phenol wastewater to realize the separation of phenol and water, which has the advantages of easy operation, low investment and economical saving. The most common physical methods are adsorption separation and solvent extraction separation. The adsorption separation me...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C02F1/30C02F1/72C02F1/28B01J23/31B01J35/10C02F101/34
CPCC02F1/30C02F1/725C02F1/281B01J23/31B01J23/002C02F2101/345C02F2305/10B01J35/61B01J35/39
Inventor 李慧泉张兆振马超张妍徐超楠郝扶影柴兰兰
Owner ANHUI JINMEI ZHONGNENG CHEM IND