In the wastewater treatment area of an electroplating factory, dozens of tons of heavy metal-containing wastewater sit in open-air pools. It takes months of natural evaporation to meet the standards, and once the rainy season comes, the process has to start all over again. The high-salt wastewater treatment equipment in chemical industrial parks has been plagued by high treatment costs due to low evaporation efficiency. Traditional evaporation processes are either too time-consuming or extremely energy-intensive. However, the cross-border application of the mist cannon machine in wastewater evaporation systems is offering a new solution to such problems with an innovative model of “atomization-accelerated evaporation + directional temperature control”.
The core logic of the mist cannon machine in wastewater treatment is to convert hard-to-evaporate water into fog droplets that easily exchange with air. Its specially made anti-corrosion atomizing nozzles can cut wastewater into fog particles with a diameter of 30-150 microns – 10 times smaller than the water droplets from traditional sprinklers, but with a surface area expanded by 100 times. Under the action of the fan, these fog particles form a fan-shaped fog curtain, increasing the contact area with air by 300%. Combined with an adjustable heating module (for low-temperature environments), it can increase the evaporation efficiency by 8-12 times compared with natural drying.
What’s more critical is that this system comes with an intelligent monitoring function. When it detects that the air humidity is lower than 60%, it automatically increases the fog volume; when the humidity exceeds the standard, it pauses operation to avoid secondary condensation pollution. Experimental data from an environmental protection technology company shows that when treating the same amount of electroplating wastewater, the energy consumption of the mist cannon machine evaporation system is only 22% of that of multi-effect evaporation equipment, and no evaporation aids need to be added.
An electroplating enterprise in Zhejiang had long been troubled by wastewater treatment. The factory generates 80 tons of chromium-containing wastewater every day. The traditional treatment process is to first perform chemical precipitation, and then discharge the supernatant into open-air evaporation pools. However, the annual average humidity in the Yangtze River Delta region reaches 75%, and it often takes 45 days for the wastewater in one evaporation pool to be concentrated to a treatable concentration. The factory had to occupy 300 square meters of land to build 6 evaporation pools, and during the rainy season, it was often interviewed by the environmental protection department due to overflow of pool water.
After introducing the mist cannon machine wastewater evaporation system last year, the changes were immediate. Three anti-corrosion mist cannon machines were installed in a closed evaporation workshop. After pre-treatment, the wastewater was pumped into the equipment, and after being atomized by low-temperature heating at 70℃, a fog curtain formed an “evaporation cloud” in the workshop. The system is linked with the dehumidification device in the workshop. When the fog particles come into contact with dry air, more than 90% of the water is converted into gas and escapes within 2 hours, and the remaining concentrated liquid is only 15% of the original water volume.
After six months of operation, the evaporation efficiency of the factory has improved significantly: a single mist cannon machine can handle 12 tons of wastewater per day, and the workload that originally required 6 evaporation pools can now be completed by 3 machines, saving 200 square meters of land occupation. What’s more surprising is that the treatment cost has dropped from 18 yuan per ton to 7.5 yuan. Based on an annual treatment of 28,000 tons, the annual cost savings are more than 300,000 yuan. Environmental protection tests show that the concentration of pollutants in the gas emitted from the workshop is far below the national standard, and the surrounding air quality is not affected.
The advantages of the mist cannon machine in the wastewater evaporation system go far beyond efficiency improvement. For high-salt wastewater, traditional evaporation equipment is prone to pipe blockage due to salt crystallization, while the atomizing nozzles of the mist cannon machine adopt an anti-scaling design, combined with an automatic backwashing function, which can run continuously for 120 hours without shutdown for cleaning. Practice in a coal chemical enterprise shows that the equipment maintenance frequency of its high-salt wastewater treatment line has been reduced from 2 times a week to once a month.
In terms of water saving, this system also shows unique value. More than 50% of the water vapor generated by the evaporation of the mist cannon machine can be recovered through a condensing device and reused as factory greening water or equipment cooling water. An electronics factory in Guangdong recovers 1,200 tons of reclaimed water every month in this way, which is equivalent to nearly 10,000 yuan in tap water costs.
For small and medium-sized enterprises, the flexibility of the mist cannon machine system is particularly valuable. Its modular design allows flexible increase or decrease of equipment quantity according to the amount of wastewater. The initial investment is only 1/5 of that of traditional evaporation ponds, and the installation cycle is no more than 7 days, which can quickly respond to the needs of environmental protection emergency treatment.
As wastewater treatment shifts from “passive compliance” to “active efficiency improvement”, the cross-border application of the mist cannon machine is breaking the limitations of traditional processes. With lower energy consumption, less land occupation and lower cost, it enables hard-to-treat wastewater to “slim down” through atomization, solving environmental protection problems and creating hidden value for enterprises. In today’s era where green production has become an inevitable trend, such an innovative solution is undoubtedly a wise choice for the sustainable development of enterprises.
Contact With Us
If you have any questions please fell free to contact with us.