Deoiling treatment method for wastewater in catering industry

A technology for oil treatment and catering industry, applied in the field of catering wastewater degreasing treatment, can solve the problems of low equipment cost and high operating cost, and achieve the effects of reducing operating cost, improving processing capacity and improving reaction efficiency.

Active Publication Date: 2017-10-20
安徽省安燃环境科技有限公司
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Problems solved by technology

[0005] (2) The advantages of chemical treatment are low equipment cost, good treatment effect, and simple operation; the disadvantage is that it needs to continuously inject chemicals into the wastewater, which has high operating costs and will introduce secondary pollution

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  • Deoiling treatment method for wastewater in catering industry
  • Deoiling treatment method for wastewater in catering industry
  • Deoiling treatment method for wastewater in catering industry

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Embodiment Construction

[0024] Such as figure 1 In the degreasing treatment method for catering wastewater shown, the oily catering wastewater enters the buffer pool 1 through the wastewater pipeline, where it is collected and initially stabilized. The outlet of the buffer pool 1 is connected to the coarse grid 2 through the wastewater pipeline, where the catering wastewater is removed Large-diameter solid matter in wastewater, the outlet of the coarse grid 2 is connected to the microbubble air flotation oil adsorption device 3 through the wastewater pipeline, and the π-allyl nickel compound-containing modified diatomite in the microbubble air flotation oil adsorption device 3 After the adsorption film 42 completely absorbs the oil, it will be grasped by the stainless steel mechanical arm 34 and sent to the oil catalytic heavy reforming desorption reactor 4. The heavy oil generated in the oil catalytic heavy reforming desorption reactor 4 is discharged from the heavy oil discharge port 45 and is Recy...

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Abstract

The invention discloses a deoiling treatment method for wastewater in the catering industry. Wastewater is sequentially treated through a buffer tank, a coarse screen, a micro-bubble air flotation oil adsorption device, an oil catalytic thickening and desorption reactor, a pH value adjusting tank, a primary sedimentation tank, an organic rhodium catalytic reaction tank, a biological denitrification tank, a secondary sedimentation tank and a purification tank. By innovative application of an oil molecule catalyzing effect of pi-allyl nickel compounds, when oil in the wastewater is adsorbed by modified diatomite and at a temperature of 200-250 DEG C, C-H bonds in the oil molecules break transiently and are quickly recombined into C-C bonds or C-H bonds, then the C-H bonds break again while breakage of the C-C bonds is prevented due to the limited catalysis effect of the pi-allyl nickel compounds, and accordingly the oil molecules with short carbon chains can be gradually combined into heavy oil molecules with long carbon chains.

Description

technical field [0001] The invention relates to a treatment method for degreasing catering wastewater, which belongs to the field of wastewater treatment in environmental protection. Background technique [0002] Among domestic sewage, catering oily sewage is one of the main water bodies. Numerous restaurants, canteens, food processing enterprises and residents will discharge a large amount of sewage in their daily life, which contains a large amount of animal and vegetable oils. If it is not treated directly, it will cause blockage of pipelines, turbidity and corruption of water bodies, and breeding of diseases. source. [0003] At present, the existing catering wastewater degreasing methods include the following four. [0004] (1) Physical methods mainly include filtration separation method and air flotation separation method, but they are only suitable for separating oil products with large particles in wastewater. The treatment efficiency is 60-80%, and the oil content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/12
CPCC02F1/00C02F1/001C02F1/24C02F1/281C02F1/288C02F1/40C02F1/4608C02F1/48C02F1/66C02F9/00C02F2001/007C02F2101/30C02F2101/34C02F2301/08
Inventor 朱辉
Owner 安徽省安燃环境科技有限公司
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