Low-concentration salt-containing wastewater concentration apparatus and treatment method

Abstract

The invention discloses a low-concentration salt-containing wastewater concentration apparatus and a treatment method. The low-concentration salt-containing wastewater concentration apparatus comprises an atomized water cannon spraying nozzle, an air guiding horn, a first-stage evaporation bin, a main evaporation network, a second-stage evaporation bin, a secondary evaporation network, a flow guiding wing, a water collecting groove, and an annular shunt pipe. The low-concentration salt-containing wastewater concentration apparatus of the present invention has advantages of simpleness, high working efficiency and no energy consumption, and can efficiently improve the low-concentration salt-containing wastewater evaporation efficiency.

Description

Technical field [0001] The invention belongs to the field of wastewater recovery devices, and specifically relates to a low-concentration salt-containing wastewater concentration device and a treatment method. Background technique [0002] The so-called evaporation refers to the vaporization process that occurs on the surface of the liquid when the liquid temperature is lower than the boiling point, which can occur at any temperature. Factors affecting the speed of evaporation: temperature, humidity, surface area of ​​the liquid, air flow on the surface of the liquid, etc. The amount of evaporation is usually expressed in millimeters of the thickness of the evaporated water layer. [0003] At present, most of the treatment of concentrated brine at home and abroad uses evaporation ponds to evaporate naturally. The biggest reason is its energy saving and low operating costs. However, it covers a large area, requires high leakage prevention, low evaporation rate, and regional limitat...

AI Technical Summary

Problems solved by technology

In 2016, Chinese patent 201621083037.6 disclosed a mechanical atomization evaporation system, which can largely solve the problem of slow evaporation rate of brine in the evaporation pond, and recover the crystalline salt in the air to a certain extent, but for other Due to geographical restrictions, the problem of large footprint still needs to be solved. At the same time, because the recovery method of the crystallized salt in the air is to fall into the evaporation pond through gravity, the control of the crystallized salt in the air is very limited, which is very difficult. May cause air pollution

However, due to the use of ultrasonic waves, the energy consumption must be far greater than that of evaporation ponds.

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