MULTI EFFECT EVAPORATOR
Multi Effect Evaporator (MEE)
Is an essential component of such plants, and it plays a crucial role in the effective treatment of effluents.
The Multi Effect Evaporator (MEE) is a method of concentrating wastewater by evaporating the water content. The MEE functions in vacuum conditions, which reduces the boiling temperature of the liquid and hence the energy required.
MEE is constructed in such a manner that it recovers over 95% of the water from the effluent and converts the remaining 5% into solid trash. As a result, MEE is an extremely successful technique for Zero Liquid Effluent Treatment Plants.
The MEE process has several steps, each of which is referred to as an effect. The concentration ratio necessary to obtain the specified effluent concentration determines the number of effects in a MEE. A typical MEE has 3-5 effects, each of which consists of a heat exchanger and a flash chamber.
The MEE operates on the heat transfer concept from one effect to another. The first effect’s concentrated effluent is supplied to the second effect, and the steam created in the second effect is utilized to heat the feed for the third effect. This technique is repeated for each effect until the desired result is reached.
Pre- Treatment
The effluent is treated with the appropriate chemicals to eliminate any suspended particles or organic materials. The pre-treatment procedure guarantees that the effluent is clean before being fed into the MEE.
Feeding
The pre-treated effluent is then fed into the MEE initial effect. A heat exchanger and a flash chamber are the initial effects. The heat exchanger is used to heat the feed by using the steam produced by the prior action. The flash chamber is used to expel any water vapor produced by the boiling of the effluent. This aids in the concentration of effluent.
Vapor Generation
The concentrated effluent from the first effect is fed into the second effect, which heats it using steam created by the preceding effect. The steam produced by the second effect’s heating of the feed is utilized to heat the feed for the third effect. This technique is repeated for each effect until the desired result is reached.
Final Product
The MEE’s final output is extremely concentrated and contains very little water. The concentrated effluent is then transferred to be treated further, and the residual water is returned to industry for reuse.
Agitated Thin-Film Dryer (ATFD)
Agitated thin-film dryer (ATFD) is used for continuous drying of heat-sensitive products under vacuum with total solvent recovery. ATFD provides high throughput by efficiently working under vacuum. ATFD uses indirect heating and drying in inert conditions which is effective for heat and oxygen sensitive products. At FABEX, we have designed our vertical ATFD to be effectively used for wide range of process fluids including liquids, slurries and pastes. These process fluids are converted to free flowing solids by continuous single pass operation. High turbulence is provided by the use of hinged rotor blades. The clearance between the blades and the heated wall surfaces prevents fouling and can allow volatiles to easily escape. The products obtained through drying by our modernized and dynamic vertical ATFD are of highly desirable quality.
Principle of Operation: Continuous processing of concentrated materials to dry solids by using intense agitation for effective heat transfer. The heating surface is renewed by continuous scrapping of dry solids for efficient heat transfer.
Feed Distributionthe
A high-speed rotor within the vessel breaks up the material into a thin film.
Agitation
A high-speed rotor within the vessel breaks up the material into a thin film.
Evaporation
The thin film of liquid on the heated surface provides a large surface area for evaporation, allowing for rapid drying.
Evaporation
The solid residue is scraped off the surface of the drum and collected at the bottom of the vessel.
The Multi Effect Evaporator (MEE) is a method of concentrating wastewater by evaporating the water content. The MEE functions in vacuum conditions, which reduces the boiling temperature of the liquid and hence the energy required.
MEE is constructed in such a manner that it recovers over 95% of the water from the effluent and converts the remaining 5% into solid trash. As a result, MEE is an extremely successful technique for Zero Liquid Effluent Treatment Plants.
The MEE process has several steps, each of which is referred to as an effect. The concentration ratio necessary to obtain the specified effluent concentration determines the number of effects in a MEE. A typical MEE has 3-5 effects, each of which consists of a heat exchanger and a flash chamber.
The MEE operates on the heat transfer concept from one effect to another. The first effect’s concentrated effluent is supplied to the second effect, and the steam created in the second effect is utilized to heat the feed for the third effect. This technique is repeated for each effect until the desired result is reached.
The concentrated effluent from the first effect is fed into the second effect, which heats it using steam created by the preceding effect. The steam produced by the second effect’s heating of the feed is utilized to heat the feed for the third effect.This technique is repeated for each effect until the desired result is reached.
The MEE’s final output is extremely concentrated and contains very little water. The concentrated effluent is then transferred to be treated further, and the residual water is returned to industry for reuse.