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Method for degrading phenol pollutant by utilizing ferroferric oxide nanoparticle reinforced anaerobic reactor

An anaerobic reactor and ferroferric oxide technology, which is applied in chemical instruments and methods, water pollutants, anaerobic digestion treatment, etc., can solve the problem of poor removal effect of phenolic pollutants, and achieve the promotion of anaerobic methane production process, increase the removal rate, and promote the effect of the methanogenic process

Inactive Publication Date: 2018-11-13
HARBIN INST OF TECH
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  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problem that the existing anaerobic process has a poor removal effect on phenolic pollutants in coal gas wastewater, and provides a method of using iron ferric oxide nanoparticles to strengthen an anaerobic reactor to degrade phenolic pollutants Methods

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  • Method for degrading phenol pollutant by utilizing ferroferric oxide nanoparticle reinforced anaerobic reactor

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specific Embodiment approach 1

[0016] Specific embodiment one: this embodiment is a kind of method that utilizes iron ferric oxide nanoparticles to strengthen the anaerobic reactor to degrade phenol pollutants, specifically according to the following steps:

[0017] 1. Use anaerobic granular sludge as the initial inoculation mud source, add wastewater to be treated into the anaerobic reactor, keep the temperature of the anaerobic reactor at 34°C-37°C, and the hydraulic retention time of the anaerobic reactor at 36h , and keep the pH of the anaerobic reactor at 7.0 to 7.4; the waste water to be treated is coal gas waste water with a COD of 1700 mg / L to 2100 mg / L and a total phenol concentration of 475 mg / L to 505 mg / L; anaerobic The concentration of the initial inoculum source in the oxygen reactor is 12g / L~15g / L;

[0018] Two, in the anaerobic reactor, add iron ferric oxide nanoparticles, the ratio of the mass concentration of the iron ferric oxide nanoparticles added in the anaerobic reactor and the COD co...

specific Embodiment approach 2

[0020] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, the pH of the anaerobic reactor is kept at 7.0-7.4 by adding sodium bicarbonate and hydrochloric acid solution. Others are the same as the first embodiment.

specific Embodiment approach 3

[0021] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the concentration of the initial inoculum source in the anaerobic reactor in step 1 is 13 g / L. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a method for degrading a phenol pollutant by utilizing a ferroferric oxide nanoparticle reinforced anaerobic reactor and relates to a method for degrading the phenol pollutant by utilizing an anaerobic reactor, aiming at solving the technical problem of an existing anaerobic technology that the removal effect on the phenol pollutant in coal-to-gas wastewater is relatively poor. According to the method, firstly, anaerobic particle sludge is used as an initial inoculation mud source; wastewater to be treated is added into the anaerobic reactor; secondly, ferroferric oxidenanoparticles are added into the anaerobic reactor. According to the method provided by the invention, the ferroferric oxide nanoparticles added into the anaerobic reactor can form an electron guide chain between acid-producing bacteria and methane-producing bacteria, and nano-wire transfer electrons are generated; interspecific crossing H2 transferring is replaced to form electron direct transferring, so that an anaerobic methane-producing process is promoted and the removing rate of the phenol pollutant is improved. The method is applied to the field of water treatment.

Description

technical field [0001] The invention relates to a method for degrading phenol pollutants with an anaerobic reactor. Background technique [0002] As an indispensable material basis for social development and progress, energy is valued by countries all over the world. Based on the national conditions of my country's gradually decreasing fossil energy and people's demand for clean energy, coal-to-gas is gradually becoming one of the leading industries in the traditional coal chemical industry. Products such as coal-based synthetic gas, gasoline, and basic chemical raw materials are used to make up for the lack of clean energy. demand. However, the coal-to-gas industry still faces some problems that restrict its development, mainly including coal-to-gas production technology that needs to be improved, high production costs, serious pollution of gas-making wastewater, complex components of gas-making wastewater, high concentrations of pollutants, and Low biochemical properties,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F103/34C02F101/34
CPCC02F3/28C02F2101/345C02F2103/34C02F2305/06
Inventor 马文成钟丹朱凯姜昆李雪
Owner HARBIN INST OF TECH
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