The installation is comprised of two or more evaporating equipment, each fitted with separator tanks, vacuum condenser, process pumps, vacuum, interconnecting piping, instrumentation, automation and control.
Plants can be provisioned in stainless steel 316L or corrosion resistant steels: Duplex 2205, 2507, Hastelloy, etc.
The commissioning can be done, depending on the size, in modular SKID plants to ease the assembly at the client’s installation. Furthermore, FAT tests can be carried out so that the client can verify both the equipment and assembly prior to shipment / delivery.
Zero discharge plant characteristics:
Production: from 100 lt/hr to 15.000 lt/hr.
Workload can be adapted based on necessities and requirements such as: falling film evaporators of the forced circulation type, the number of effects chosen depending on investment cost and energy yield, pressure or operating vacuum, etc.
As an energy source the following can be used: hot water, saturated steam, thermal oil. Our technical department at Zean can study the project and recommend what values should be used to maximize performance.
The advantages of ZLD technology:
- Proven technology capable of working with solids and viscous products.
- The materials used to construct it allow for corrosive dilutions (high inorganic salt concentrations).
- Low energy cost: for example, for 1 Kg/hr of evaporated water 0.58 Kg/hr of steam is needed in the case of double effect. See attached table:
- Modular SKID constructed plants facilitate destination assembly, especially if the final destination point is within explosive atmosphere classified areas.