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Novel micro-electrolysis unit for treating oily wastewater

A new type of micro-electrolysis technology, applied in special treatment targets, water/sewage treatment, water/sewage treatment equipment, etc., can solve the problems of micro-electrolysis packing compaction, passivation cleaning and replacement, inconvenience, etc., to achieve uniform water distribution, The effect of long service life and simple structure

Pending Publication Date: 2018-12-07
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] The purpose of the present invention is to provide a new type of micro-electrolysis device for treating oily wastewater in order to solve the problems of micro-electrolysis filler compaction, passivation, and inconvenient cleaning and replacement during the micro-electrolysis reaction process.

Method used

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  • Novel micro-electrolysis unit for treating oily wastewater
  • Novel micro-electrolysis unit for treating oily wastewater
  • Novel micro-electrolysis unit for treating oily wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Adjust the pH value of the test wastewater with an oil concentration of 30mg / L to 3.0, take 200mL of the wastewater with this concentration, and add the prepared filler to the reaction zone of the micro-electrolysis device at a ratio of 1:5200g / L to treat the oily wastewater At the same time, the auxiliary aeration is strengthened. During the reaction process, samples are taken at intervals of 10 minutes. The micro-electrolysis reaction time is set to 60 minutes. The oil removal effect shows a rapid increase trend with the increase of fillers. The maximum removal rate can reach 81.4%, and the pH value of the effluent is 4-5, reaching the water discharge standard. After several days of continuous operation, the filler has no hardening, passivation, waste residue, etc.

Embodiment 2

[0079] Adjust the pH value of the test wastewater with an oil concentration of 100mg / L to 3.0, take 200mL of the wastewater of this concentration, and add the prepared filler to the reaction zone of the micro-electrolysis device at a ratio of 1:4250g / L to treat the oily wastewater At the same time, the auxiliary aeration is strengthened. During the reaction process, samples are taken at intervals of 10 minutes. The micro-electrolysis reaction time is set to 60 minutes. The oil removal effect shows a rapid increase trend with the increase of the filler. The removal rate can reach 79.8%, and the pH of the effluent is 4-5, reaching the water discharge standard. After several days of continuous operation, the filler has no hardening, passivation, waste residue, etc.

Embodiment 3

[0081] Adjust the pH value of the test wastewater with an oil concentration of 200mg / L to 3.0, take 200mL of the wastewater with this concentration, and add the prepared filler to the reaction zone of the micro-electrolysis device at a ratio of 1:2500g / L to treat the oily wastewater At the same time, the auxiliary aeration is strengthened. During the reaction process, samples are taken at intervals of 10 minutes. The micro-electrolysis reaction time is set to 60 minutes. The oil removal effect shows a rapid increase trend with the increase of fillers. 4-5, reaching the water discharge standard. After several days of continuous operation, the filler has no hardening, passivation, waste residue, etc.

[0082] To sum up: the present invention discloses a novel micro-electrolysis device for treating oily waste water, which includes a cylinder, which is divided into a water collection area, a reaction area, and a water inlet area from top to bottom. The upper part of the water col...

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Abstract

The invention provides a novel micro-electrolysis unit for treating oily wastewater. The novel micro-electrolysis unit comprises a cylinder, wherein the cylinder sequentially comprises a water inlet area, a reaction area and a water collection area from bottom to top; the water inlet area comprises a conical water distribution perforated plate, a horizontal circular perforated plate, a circular aeration disc and an air inlet pipe; the conical water distribution perforated plate is arranged at the bottom of the cylinder; the horizontal circular perforated plate is arranged above the conical water distribution perforated plate; the circular aeration disc is arranged below the conical water distribution perforated plate; the air inlet pipe penetrates through the conical water distribution perforated plate and is connected with the circular aeration disc; aeration holes are uniformly formed in the circular aeration disc; a water inlet pipe is further arranged and connected with the centerof the bottom of the cylinder; the outer edge of the lower end of the conical water distribution perforated plate is connected with the inner wall of the cylinder; and a first opening and a second opening are uniformly formed in the conical water distribution perforated plate and the horizontal circular perforated plate. The novel micro-electrolysis unit disclosed by the invention is simple in structure and long in service life, and the problems such as hardening and passivating of packing and blockage of the packing in the traditional micro-electrolysis technology can be effectively reduced or avoided.

Description

technical field [0001] The invention relates to a micro-electrolysis device, in particular to a novel micro-electrolysis device for treating oily waste water, and belongs to the technical field of treating oily waste water with a micro-electrolysis method. Background technique [0002] With the rapid development of my country's economy, more and more oil-containing items are widely used. However, due to the limitations of factors such as backward production and application technology and backward production management, a large amount of oily pollutants have been discharged indiscriminately. The oily wastewater formed by mixing oil pollutants and wastewater is discharged into natural water bodies, which will not only cause serious harm to the water quality of the water body and organisms in the water, thereby destroying the ecosystem, but also cause various human diseases. Discharging into water bodies cannot achieve the purpose of resource recovery and reuse. According to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F101/30
CPCC02F1/46176C02F2101/30C02F2303/14C02F2201/46105
Inventor 官涤刘雨郑季鑫孙勇田一贺郑国臣王玮杰
Owner HARBIN ENG UNIV
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