Oily wastewater treatment method and whole set apparatus thereof

A technology for wastewater treatment and a complete set of equipment, which is applied in the directions of water/sewage multi-stage treatment, flotation water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of high equipment investment, large floor area, and high treatment cost. Problems, to achieve the effect of low investment, high transportation costs, and simple processing procedures

Inactive Publication Date: 2009-07-22
宜兴市芳惠子环保设备厂
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  • Application Information

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Problems solved by technology

[0065] The purpose of the present invention is to solve the problems of high treatment cost, high equipment investment and large occupied area caused by heating, adding acid, adding polymer flocculant and neutralizing precipitation for oil-water separation in the existing oily wastewater treatment. A new oily wastewater treatment method, and design a new complete set of treatment equipment

Method used

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  • Oily wastewater treatment method and whole set apparatus thereof
  • Oily wastewater treatment method and whole set apparatus thereof
  • Oily wastewater treatment method and whole set apparatus thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] Such as Figure 1-4 shown.

[0117] A method for treating oily wastewater, comprising the steps of:

[0118] First, dissolve the flocculant (ordinary flocculant of several thousand yuan per ton, or polymer flocculant of tens of thousands of yuan per ton) in the dissolving box 1 at a ratio of 1:200 to 1000 to obtain flocculant solution;

[0119] Secondly, according to the ratio of injecting at least 5-120 kg of flocculant solution (including the flocculant solution containing demulsifier) ​​per ton of wastewater, the flocculant solution and oily wastewater enter the high-speed injection pump 2 together (high-speed impeller pumps should be used) , the flow rate can be determined according to the amount of water to be treated), under the action of the high-speed injection pump 2, the oily wastewater is fully mixed with the flocculant solution to achieve the purpose of demulsification, and the oily wastewater after demulsification is obtained;

[0120] The third, the oil...

Embodiment 2

[0126] Such as Figure 1-4 .

[0127] The difference between this embodiment and Example 1 is that different amounts of demulsifiers are added according to the oily components (including oil content) in the waste water and the properties of the waste water to increase the treatment effect. For the added amount, please refer to the relevant instructions and manuals; The mixing ratio of the solution after the emulsion and the waste water is still the same as in Example 1, and its filling position is also the same, and it still enters the pump from the inlet port of the pump 2 together with the waste water and mixes at a high speed.

Embodiment 3

[0129] The difference between this embodiment and Embodiment 1 is that the solution in the dissolving tank 1 is added to the waste water pipe from the outlet end of the pump 2, and is directly mixed with the oily waste water pressurized by the pump 2 and then enters the swirl cutting cloth. Demulsification in tank 3.

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Abstract

The invention pertains to the waste water processing technical field and relates to an oily waste water processing method and complete set of equipment thereof, which is characterized in that: firstly, the waste water is processed by an express pump and then transmitted to a steady flow cylinder by a distributor so as to be treated with demulsification and perikinetic flocculation; afterward, the waste water is transmitted to a mixing tank so as to be treated with orthokinetic flocculation; after being further charged by a high-pressure dissolved air releaser, oil-water separation is carried out to the waste water; and finally, clean water meeting the requirement of environmental protection can be obtained after the waste water is separated in an inclined tube settling zone. The processing method is characterized by simple process and equipment, low investment and low running cost.

Description

technical field [0001] The invention relates to an environmental protection process and equipment, in particular to an oily wastewater treatment process and equipment, in particular to an oily wastewater treatment method and a complete set thereof. Background technique [0002] As we all know, various machinery manufacturing industries, steel and other metals, petroleum refining, petrochemicals, meat processing, vegetable oil production, artificial leather, leather wastewater, paint, ink manufacturing industries will produce a large amount of oily wastewater, ships, vehicles, aircraft, etc. Washing wastewater from vehicles, engines, etc. also produces oily wastewater, which is a serious pollutant and must be treated before it can be discharged. [0003] Due to the different sources of wastewater, the types, concentrations, and characteristics of oily wastewater are also different. They generally exist in wastewater in the form of water-in-oil and oil-in-water. Generally, oil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F1/52C02F1/24
Inventor 闵方权闵若菲
Owner 宜兴市芳惠子环保设备厂
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