Issues related to operating costs in industrial wastewater treatment
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What is the approximate operating cost per ton of water for treating 5 t/h of industrial wastewater using an MVR evaporation system? What’s the lowest amount it can be?
There is data showing over 1 ton available for review
Is this the actual operating cost, or is it calculated theoretically?
1. What wastewater to look at? 2. Treatment water volume? Evaporated water volume (initial concentration -- final solution concentration) 3, concentration? Evaporation crystallization again?
In actual operation, due to the different sizes of MVR devices and their varying efficiencies, it’s difficult to determine the cost associated with pre-evaporation processing; there are significant differences in these costs
Just ask an engineering company with design experience and you’ll find out. But the figures he gave you are all relatively low.
According to what I found online, the average cost is around 30 to 70 kWh per ton of water; you can calculate the expense yourself.
Generally, the energy consumption per ton of water evaporated in MVR systems is divided into electricity and preheated steam (to maintain the thermal balance of the system); most of the operating costs consist of around 40 kWh of electricity and 40 kg of steam； At the very least, 30 kWh of electricity and 30 kg of steam can be produced. The specific energy consumption is primarily related to the boiling point elevation of the material; that is, the boiling point of the solution is higher than that of water at the same pressure (the saturation temperature of the secondary steam), and this difference represents the boiling point elevation, which in turn determines the temperature rise and power consumption of the compressor. For example, sodium sulfate at 4 degrees, sodium chloride at 10 degrees, and ammonium chloride at 15 degrees.