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A method and device for direct evaporation and concentration treatment of wastewater

An evaporation concentration and treatment method technology, which is applied in the field of wastewater direct evaporation concentration treatment methods and devices, can solve the problems of complex operation, high investment and high maintenance cost, and achieves low equipment investment, simple operation and maintenance, and low equipment investment and operation cost. Effect

Active Publication Date: 2018-06-22
BEIJING KAIDEFEI COOLER MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current treatment method has high investment, complicated operation and high maintenance cost

Method used

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  • A method and device for direct evaporation and concentration treatment of wastewater
  • A method and device for direct evaporation and concentration treatment of wastewater
  • A method and device for direct evaporation and concentration treatment of wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A method for direct evaporation and concentration of wastewater, the process is: generate high-temperature hot air, send the generated hot air into a mixing zone, mix with the sent wastewater in the mixing zone to form mixed steam, and then carry out demisting discharge recovery treatment on the mixed steam. The process of forming mixed steam is as follows: firstly, the hot air is sent into a region where the diameter of the pipe is gradually reduced to compress the hot air, and at the same time, the primary wastewater treated by removing particles is sprayed into the area through the nozzle to mix with the compressed hot air; then, the primary wastewater is carried The compressed hot air immediately enters an area with gradually increasing caliber through the outlet of the area where the caliber gradually decreases to form the mixed steam, and then the mixed steam enters the mist eliminator through a pipeline connected to the area outlet with gradually increasing caliber...

Embodiment 2

[0036] like Figure 1 to Figure 4 , a wastewater treatment device for direct evaporation and concentration, comprising a gas-water mixer 10, a hot blast furnace 20, and a demister 30.

[0037] like Figure 4 , The air-water mixer is used to mix hot air with water, so that the water is heated to generate water vapor. The air-water mixer is provided with an air inlet 11, an air outlet 12, and a first water inlet 13; between the air inlet and the air outlet are two cones, a hot gas compression cone section 15 and an air-water mixing cone section 16, which are arranged perpendicular to the ground The small diameter end of the hot gas compression cone section and the air-water mixing cone section have the same diameter and are connected to each other. The air inlet is the large diameter end of the hot gas compression cone section, and the gas outlet is the large diameter end of the air-water mixing cone section. The cone section is provided with a primary waste water nozzle 18, w...

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Abstract

The invention relates to a method and a device for directly evaporating and concentrating waste water. The method and the device are used for evaporating and concentrating the waste water. According to the method, water content in the waste water is evaporated by utilizing hot wind, and solid content in the waste water can be separated from the water content. The device comprises an air-water mixer, a hot blast heater and a mist eliminator. The method has the beneficial effects that the water content and waste solids in the waste water are separated from each other due to the fact that the waste water directly contacts high-temperature hot air for evaporation, and the content and the characteristics of organics in the waste water hardly have any effects on the treating effect of the waste water by adopting a direct evaporating technique. Compared with the general process, the method and the device are lower in equipment investment and operating cost, small in occupation of whole set of facilities and simple to operate and maintain. The waste water with high suspension / solute content and high hardness can be directly treated, and pretreatment is avoided. Compared with multi-effect evaporation and MBR, the equipment investment is low and the operating and maintenance are simple.

Description

technical field [0001] The invention belongs to suspended / soluble solid solid-liquid separation equipment, in particular to a wastewater direct evaporation concentration treatment method and device. Separation of soluble / suspended solids that have a high content of organic pollution in the liquid and are not easy to biochemically degrade or have a high hardness in the liquid that is prone to scaling. It is suitable for waste permeate treatment, power plant desulfurization and denitrification waste liquid treatment, and oilfield wastewater treatment. , chemical and steel zero discharge wastewater treatment. Background technique [0002] With the acceleration of urbanization in our country, the amount of garbage produced has also increased, and the garbage permeate has also increased year by year. Garbage permeate is characterized by containing a variety of organic pollutants and high COD concentration, ranging from 10,000 to 100,000 mg / L; especially carboxybenzene, heterocyc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/12
CPCY02A20/141
Inventor 黄荣锋梁春阳
Owner BEIJING KAIDEFEI COOLER MFG