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Tubular falling film reactor catalytic activation persulfate treatment system and operation process

A technology of falling film reactor and persulfate, which is applied in the direction of oxidized water/sewage treatment, special compound water treatment, process wastewater treatment, etc. It can solve the problems of harsh reaction conditions, high energy consumption, and the risk of corrosion equipment , to achieve the effect of promoting circulation, high mechanical strength, and convenient recycling

Active Publication Date: 2021-05-28
SHANGHAI BI ZONE ENVIRONMENTAL EQUIP & ENG
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a tubular falling film reactor catalytic activation persulfate treatment system and operating technology, which solves the energy consumption of activation methods such as heat, ultraviolet light, and ultrasonic waves in the current persulfate activation method. High, harsh reaction conditions; alkali activation needs to adjust the pH of the system, there is a risk of corrosion of equipment; transition metal ion activation requires complex post-treatment to avoid secondary pollution

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  • Tubular falling film reactor catalytic activation persulfate treatment system and operation process
  • Tubular falling film reactor catalytic activation persulfate treatment system and operation process
  • Tubular falling film reactor catalytic activation persulfate treatment system and operation process

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Embodiment Construction

[0039] In order to easily understand the technical means, creative features, goals and effects of the present invention, the present invention will be further described below in conjunction with specific illustrations.

[0040] Such as Figure 1-2 As shown, the tubular falling film reactor catalytically activated persulfate treatment system includes a reactor, a water inlet unit, a water outlet unit and a control device, and the reactor includes a tubular device 6 and a falling film reaction zone, and the tubular device 6 Co / Fe flexible multi-wall carbon nanotube composite film 5 is filled close to the inner wall, and spiral static mixers 4 are installed at both ends and in the middle of the tubular device 6, which has high microscopic mixing efficiency and can make the influent and persulfate fully The mixed reaction makes the Co / Fe flexible multi-walled carbon nanotube composite film 5 better catalyze the activation of persulfate and reduce the reaction time. The outside of ...

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Abstract

The invention discloses a tubular falling film reactor catalytic activation persulfate treatment system and an operation process, and belongs to the technical field of industrial sewage treatment. The system comprises a reactor, a water inlet unit, a water outlet unit and a control device. The reactor comprises a tubular device and a falling film reaction zone, the water inlet unit and the water outlet unit are both communicated with the reactor, the water inlet unit comprises a water inlet pipe, a water inlet pump and a water distribution pipeline, the water outlet unit comprises a second water outlet pipe and a first water outlet pipe, and the water inlet unit is connected with the tubular device of the reactor. The control device comprises a first COD online detector, a second COD online detector, a first control valve, a second control valve, a third control valve, a first persulfate adder and a second persulfate adder. Intelligent control and membrane catalytic activation advanced oxidation are coupled, and degradation-resistant wastewater is simply, conveniently and effectively treated.

Description

technical field [0001] The invention relates to a catalytically activated persulfate treatment system and an operating process of a tubular falling film reactor, belonging to the technical field of industrial sewage treatment. Background technique [0002] With the acceleration of industrialization, the paper industry has become an important pillar industry in my country's national economy with the characteristics of circular economy. According to statistics, my country's annual paper production reaches 125 million tons, with an output value of 1.4 trillion yuan, ranking first in the world. However, papermaking industrial wastewater is one of the six major industrial pollution sources in my country, and its discharge accounts for more than 30% of industrial wastewater discharge, and chemical oxygen demand (COD) discharge accounts for more than 34%. Papermaking wastewater pollutants have poor biodegradability, complex components, toxic effects on microorganisms, high chroma, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F1/32C02F1/28C02F103/28
CPCC02F1/725C02F1/32C02F1/288C02F2305/023C02F2305/10C02F2103/28C02F2209/001C02F2209/003C02F2209/08Y02W10/10
Inventor 刘云洲
Owner SHANGHAI BI ZONE ENVIRONMENTAL EQUIP & ENG
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