MVR/multi-effect Mother Liquid Treatment

Solutions：

The main components of MVR/ multi-effect mother liquid are high organic matter and salt. It enters VESALT scraper low temperature drying and crystallization system, evaporates and dries under vacuum low temperature conditions. It can greatly reduce and remove the inorganic salts, heavy metals and COD contained in the waste liquid, and finally obtain dry solid crystal salt with moisture content ≤15%. The water vapor in the wastewater condenses to form distillate, which is collected into a clean water bucket. The water yield can reach 70% ~ 90% and the water quality is clear and transparent. The distillate can be reused as middle water or meet the discharge standard.

Application Areas：

Low-temperature evaporation liquid

liquid MVR liquid

Multiple effect liquid

High-temperature evaporation liquid

Brief Introduction:

MVR mother liquid is a concentrated waste liquid that is close to saturation discharged from wastewater after MVR, multi-effect evaporation, or low-temperature evaporation after initial evaporation reduction. The water quality of MVR concentrated liquid is complex. The solid content concentration is very high and the salt concentration is almost saturated, and the treatment is difficult.

Our proposal is clear: treat this kind of high concentration enrichment mother liquor concentration to achieve dry solid residues. That's the only way to recycle 100% of the water. 

Process Diagram:

VESALT S - ME scraper low-temperature vacuum crystallizer: this equipment can evaporate supersaturated thick liquid from MVR, multiple effect for further processing to dry solid crystal, solid crystal moisture content < 15%, so as to complete the whole work cycle, minimize residue and save a lot of the cost.

In our zero waste production application center, we continuously develop innovative technology that can significantly improve the quality of distilled water. For example, VESALT scraper crystallization technology with special technology can meet all quality requirements through a clever system preparation, so as to obtain clear distilled water and dry solid crystals. This makes our cryogenic vacuum distillation system has unique characteristics in the global market.