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A split-type electric Fenton equipment and its method for efficiently treating coal chemical wastewater

A split-type, equipment technology, applied in natural water treatment, chemical instruments and methods, centrifugal separation of water/sewage treatment, etc. problems, to achieve the effect of great difficulty, reducing the content of pollutants, and low energy consumption

Active Publication Date: 2021-06-22
NANJING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Usually coal chemical wastewater pretreatment methods include coagulation method, supercritical oxidation method, ozonation method, ultrasonic method, Fenton oxidation method, chlorine dioxide method, incineration method, plasma treatment technology, etc. Although these methods plus subsequent biochemical treatment It can remove pollutants such as phenol and cyanide, but nitrogen-containing heterocycles and benzene-ring organics are difficult to degrade and fail to meet the reuse water standard

Method used

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  • A split-type electric Fenton equipment and its method for efficiently treating coal chemical wastewater
  • A split-type electric Fenton equipment and its method for efficiently treating coal chemical wastewater
  • A split-type electric Fenton equipment and its method for efficiently treating coal chemical wastewater

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Experimental program
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Effect test

Embodiment 1

[0026] Embodiment 1: as figure 1 , 2A split-type electric Fenton device shown includes a pretreatment tank 1, an electrolytic reaction tank 2, a sedimentation tank 3, a control device and a power supply device; the pretreatment tank 1 includes a filter chamber 10 and an oil and sulfur removal chamber 11, and the filter The cavity 10 and the oil and sulfur removal cavity 11 are arranged side by side in the pretreatment tank 1. The upper end of the filter cavity 10 is provided with a liquid inlet pipe. The inside of the filter cavity 10 is provided with a grid box 12. The grid box 12 is connected with the liquid inlet tube. A primary slag discharge pipe is provided on the grid box 12, and the primary slag discharge pipe runs through the pretreatment tank 1; a wedge-shaped block is provided at the bottom of the filter chamber 10, and a secondary slag discharge pipe is provided on the filter chamber 10, and the filter chamber 10 is provided with a Suction pump 13, a swirler 14 is...

Embodiment 2

[0035] Embodiment 2: as figure 1 , 2 A split-type electric Fenton device shown includes a pretreatment tank 1, an electrolytic reaction tank 2, a sedimentation tank 3, a control device and a power supply device; the pretreatment tank 1 includes a filter chamber 10 and an oil and sulfur removal chamber 11, and the filter The chamber 10 and the oil and sulfur removal chamber 11 are arranged side by side inside the pretreatment tank 1, the upper end of the filter chamber 10 is provided with a liquid inlet pipe, and the inside of the filter chamber 10 is provided with a grid box 12, which is connected to the liquid inlet pipe. The grid box 12 is provided with a primary slag discharge pipe, the primary slag discharge pipe runs through the pretreatment tank 1, a wedge-shaped block is provided at the bottom of the filter chamber 10, a secondary slag discharge pipe is provided on the filter chamber 10, and the filter chamber 10 is provided with a There is a suction pump 13, and a swi...

Embodiment 3

[0044] Embodiment 3: as figure 1 , 2A split-type electric Fenton device shown includes a pretreatment tank 1, an electrolytic reaction tank 2, a sedimentation tank 3, a control device and a power supply device; the pretreatment tank 1 includes a filter chamber 10 and an oil and sulfur removal chamber 11, and the filter The chamber 10 and the oil and sulfur removal chamber 11 are arranged side by side inside the pretreatment tank 1, the upper end of the filter chamber 10 is provided with a liquid inlet pipe, and the inside of the filter chamber 10 is provided with a grid box 12, which is connected to the liquid inlet pipe. The grid box 12 is provided with a primary slag discharge pipe, and the primary slag discharge pipe runs through the pretreatment tank 1. A main pipe 120 is installed horizontally inside the grid box 12, and the main pipe 120 is connected with the liquid inlet pipe. Branch pipes are vertically arranged at both ends of the main pipe 120. 121, each branch pipe...

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Abstract

The invention discloses a split-type electric Fenton equipment and a method for efficiently treating coal chemical wastewater, including a pretreatment pool, an electrolytic reaction pool, a sedimentation pool and power supply equipment; the pretreatment pool includes a filter box and an oil and sulfur removal chamber, The oil and sulfur removal chamber is equipped with a cyclone and an annular oil collecting pipe; the electrolytic reaction cell includes an electrolytic chamber and a Fenton reaction chamber, an electrode plate is arranged inside the electrolytic chamber, and a pH detection device and a stirring device are installed inside the Fenton reaction chamber; the power supply The equipment provides power for the cyclone, pH detection device and stirring device; the invention has simple structure, high degree of mineralization of organic matter, and relatively low energy consumption; it has good decomposition and removal effect on pyridine and heterocyclic organic pollutants.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a split-type electric Fenton device and a method for efficiently treating coal chemical wastewater. Background technique [0002] Coal chemical industry wastewater is mainly high-concentration gas washing wastewater, which contains a large amount of toxic and harmful substances such as phenol, cyanide, oil, ammonia nitrogen, etc. It is the most difficult and complicated wastewater to treat. The coal chemical industry wastewater mainly comes from the production water and steam condensation wastewater in the coke oven gas primary cooling and coking production process, which is a typical industrial wastewater containing refractory organic compounds. The water quality of coal chemical wastewater produced by different technological processes and production operation methods varies greatly. Facing the current national discharge standards for coal chemical wastewater, many ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/06C02F103/34C02F101/38
CPCC02F1/001C02F1/38C02F1/4672C02F1/56C02F9/00C02F2001/007C02F2101/38C02F2103/34C02F2209/06C02F2305/026
Inventor 吕路徐敬生张炜铭马亮潘丙才
Owner NANJING UNIV
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