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ZLD system that contributes to prevent the pollution of water

  • Environment
  • Ecosystems
  • Activities in Products

Toshiba Infrastructure Systems & Solutions Corporation*

In developing countries where rapid population growth in urban areas and economic development are progressing, pollution of water is becoming more serious year by year. Thus, laws and regulations to achieve a sound water cycle are being strengthened along with the growing need for improvement of wastewater quality and conservation of the water environment of the discharge destination.
Toshiba Infrastructure Systems & Solutions Corporation provides a Zero Liquid Discharge (ZLD) system that aims to reduce the risk of water pollution in rivers and promote the effective use of water resources through the recycling and reuse of wastewater.
The ZLD system consists of two functions: one to concentrate and separate impurities in wastewater and recover reclaimed water, and the other to evaporate the concentrated impurities to obtain dried solid waste, thereby reducing the amount of wastewater discharged outside the system to zero.
By applying the ZLD system, we contribute to preventing water pollution in public water areas, thereby helping to solve the problems of water shortages and water pollution.
By improving the recovery rate from 80% to 95% through initiatives to prevent membrane clogging in the water recovery equipment, we reduce the energy consumption required for evaporation to about one quarter, and greenhouse gas emissions by half *1.

*Toshiba Infrastructure Systems & Solutions Corporation has been integrated into Toshiba Corporation on April 1, 2025.

  • Trial calculation results based on actual results of introduction at an automobile plant in India.

Outline of the ZLD system process flow

Example of a car factory (drainage sample)