The roots type blower used in MVR projects as mvr blower or called steam compressor. It works to increase the temperature for 2nd vapor and reuse it. The mvr blower steam compressor can be made in cast iron or ss material. With mechanical seals to ensure no leakge, to with water cooled to ensure no oil mix with liquid.
* Energy saving
* gentle evaporation b ecause of small temperature differential
* stainless steel material resident short time for common single effect
* simple process, but good in practice
* low cost in operation
* don't need fresh steam, cooling water and cooling tower, saving the cost of water, electric power, and maintenance for cooling tower
* tight structure, occupying small space, operating smoothly, high degree of automation
* can realize low temperature evaporation, and can work at vacuum pressure condition near absolute pressure
* high return on investment, although higher investment at the begnining, but it would be return within 1.5 to 2 years
* can reuse the waste water to realize no discharge of industrial waste water
