New Choice for Zero Emission of Mechanical Atomizer Evaporators

With the increasing degree of industrialization, the discharge of industrial water and wastewater is also increasing, and the damage to the ecological environment is also becoming more serious. At the same time, serious water shortages in some areas have become a constraint on the sustainable development of the social economy. In the face of such a severe situation, some industrially advanced countries implement "zero discharge" of waste water for industrial and mining enterprises in certain regions.

At present, various forms of recovery and reuse treatment have also been adopted for high-salt wastewater in China. These reuse technologies include: traditional membrane process, diaphragm technology, forward osmosis technology, electrodialysis technology, dish-type reverse osmosis technology, multi-effect evaporation technology, MVR evaporation technology, membrane distillation and evaporation technology, etc. Most of the high salt wastewater can be recovered. However, at present, if the solid salt is crystallized directly from the concentrated brine, “zero emission” is realized, and the operating cost and one-time investment are relatively high. Therefore, some users will discharge the concentrated high-salt water to evaporation ponds for natural evaporation and crystallization. Evaporation pond evaporation is still the most economical way of evaporation and crystallization.

With the increase of production capacity of enterprises, the output of high-concentration brines is getting larger and larger, and it has begun to exceed the original capacity of evaporation ponds, causing partial evaporation ponds to face the dilemma of full ponds. How to increase the evaporation capacity of the existing evaporation ponds without expanding them is the best way to solve the danger of full ponds. Our company's mechanical atomization evaporator can solve the problem of the current pond full pond, without the need to expand the evaporation pond can increase the evaporation efficiency of the original evaporation pond, and the improved evaporation rate is more than 14 times the original natural evaporation efficiency. At present, the equipment has been used by Inner Mongolia Tianhe Waterworks Co., Ltd. for a total of 20 industrial applications. At the same time, the first batch of 4 equipment has been installed and commissioned, and the site has been put into operation.

Inner Mongolia Tianhe Water Co., Ltd. is located in Xuejiawan Dalu New Area. The raw water is the municipal wastewater and the production wastewater discharged from various factories in the industrial zone. After the biochemical treatment, the wastewater is treated with softening and conventional ultrafiltration reverse osmosis. Recovery, high-concentration brine produced by the membrane process is discharged to the evaporation pond for crystallization.

The feature of mechanical atomizing evaporator is that the evaporation is performed at room temperature. The high-speed motor for the water pump and atomizing impeller is the main power equipment of the equipment. Therefore, the operation consumption of the system is extremely low, and the power consumption required for evaporating tons of water is about 4 kW. All the seals of the equipment are maintenance-free equipment. The equipment can guarantee continuous operation for 8,000 hours under normal conditions without stopping the machine and repair it once a year. At the same time, the installation method of the equipment is flexible. Apart from being able to float on the water, it can also be placed on the shore of the evaporation pond.

By using our company's atomization evaporator, we can solve the actual problem on the site and the impact on the surrounding environment is within the controllable range. This device is one of the best solutions to the problems of the existing evaporation ponds. At the same time, for the Xinjiang Evaporation Pool, the use of this equipment can properly reduce the area of ​​the evaporation pond and also meet the need for evaporation. This is a supplement to various evaporation technologies at the present stage and a new choice for evaporation technology.