SPOTVIEW – Sustainable Processes and Optimized Technologies for Industrially Efficient Water Usage in steel, dairy or pulp and paper industry

Initial situation
- Water use in steel industry: 1980 million m³ for production of 169 million tons crude steel divided in 75% cooling applications, 13% gas washing and 12% material conditioning.
- Inhibition of water reuse because of salts and hardness (corrosion, scaling), abrasive solids or organic compounds (oil, grease) and cooling water treatment chemicals.
- Effect of water components: decreasing salt/hardness removal efficiency of available technologies to an insufficient economic or technical level.
Project objectives of the steel case
- Decoupling of production processes from water consumption and reduction of fresh water demand about 20 – 40% or waste waters up to 90%.
- 20% energy saving by recovery from cooling water with chemical heat pump.
Innovative approaches
- Desalination and softening of waters by capacitive deionization (CDI).
- Use of chemical heat pump for energy recovery.
- Direct internal reuse of low or loaded process waters after treatment in different applications (cascade).
Identification of potential disturbing contaminants in the CDI treatment
partners
Funding reference
H2020-IND-CE-2016-17
Your contact person

12 Dipl.-Ing. Martin Hubrich
+49 211 98492-343
martin.hubrich_at_bfi.de