• en
  • it
  • de
  • ru
  • es
DIRECT ASSISTANCE 0039 0434 516332

Diesel power plant: recovering water and oily concentrate

By 2 May 2023acf, case

The customer

The client is one of the world’s leading suppliers of large diesel and gas engines, used mainly on ships, power
plants, turbomachinery and turbochargers.

In new plants based in Honduras and Morocco, find a solution to:
• reduce at minimum the water content in the oily wastewater from the discharge of separator systems and dewatering of fuel oil storage tanks;
• recover the oily concentrate to be burned.

The solution provided
The EVALED solution we recommended to achieve these important goals is a hot/cold water evaporator type AC F 20, with a distillate production capacity of 20 m3/day and a footprint of 9.1 sqm.

EVALED AC F is the line of hot/cold water and forced circulation vacuum evaporators designed to treat liquids with high content of dissolved solids at low temperature, with the minimum fouling and scaling index. The evaporator produces a recyclable distillate, free of dissolved salts, and a concentrate which usually is equal to about 5-8% of the initial inlet.

If a thermal energy surplus is available on site, AC F evaporators can also utilize steam as a heat source (cogeneration).
The AC F line has a treatment capacity range that goes from 20 to 60 ton/day and includes single and multiple effect models.

All the EVALED®️ AC F evaporators can be remotely monitored and controlled through the HUBGRADE digital platform.

The results:

  • wastewater disposal cost reduction;
  • heat recovery coming from cogeneration (CO2 footprint reduction);
  • waste to energy: concentrated oil recovered;
  • Water recovery: up to 93%
  • Concentration factor: up to 16 times

This certified solution has been requested and replicated by the customer in similar plants in the world with a standardized unit managing the average flow of 12 m3/day.

Technology type Material Footprint (m2)
Hot/cold water Forced Circulation AC F 20 AISI316 9.1
Parameters U.M. Waste In Distillate Out Concentrate
pH 6
TS at 105°C % 5-30** - >60-80
Chlorides ppm <200 <5 -
Oils % 1-30 - -