REAL DESALINATION. Zero Liquid Discharge of Brines and High Concentrated Fluids. Gerard Schouten TNAV, Leuven October 11 th, 2016

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1 REAL DESALINATION Zero Liquid Discharge of Brines and High Concentrated Fluids Gerard Schouten TNAV, Leuven October 11 th, 2016

2 SALTTECH: company characteristics SALTTECH BV Located in: Sneek, NL Addison, Texas 100% privately owned by DWT Group Founded in 2011 Strong international team Seasoned management team Specialists on technology, chemistry and process engineering TECHNOLOGY Strong IP portfolio Multiple patent groups 1 patentgroup awarded in USA and Europe 2 patentgroups pending in >40 countries Continuous development of new IP Patentable Know how/trade secrets Strong (launching) customers

3 DyVar: Markets Modern industrial processes lead to more complex side streams! High concentrated streams containing: Fluctuating TDS levels Organics Solids (clay, sand, etc) Hydrocarbons (VOC, BTEX etc) Such as: Water industry waste streams RO concentrate annd/or IX regenerate Process Industry Food processing Chemical industry Oil and gas industry Flowback from fracking Waste streams from processing 3 Environmental clean up projects

4 The technical and technological challenge of desalination As long as desalination has been pursued, developed and applied, There has always been a major challenge! SCALING and FOULING!! Every technology or system tries to avoid it. Significant investments are made en R&D to cope with this

5 Avoiding SCALING and FOULING. Why? It decreases life time It increases maintenance It decreases capacity It increases chemical usage. It is unfavorable for the economics But it is natural! So we looked at it differently: Salttech s DyVaR technology does not avoid..it uses scaling and fouling. as basis of our technology

6 Salttech s concept: Combining nature Cyclonic action Natural Evaporation Spray effects

7 SALTTECH s Technology: DyVaR DyVaR applicable for all kinds of high concentrated fluids TDS removal technology (DESALINATION) Hardness removal TSS removal technology Volatiles removal technology Disinfection technology DyVaR: is a modular system uses no chemicals, uses no membranes requires no pretreatment requires minimal operator attention. has very high energy efficiency. is insensitive to scaling or fouling is designed for continuous operation 24/7 7

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9 Process Flow Diagram Vapor Fan DyVaR systems: 24/7 operability Robust flowchart Fully autonomous operation Remote controlled

10 Comparison of technologies DyVaR *basics for this diagram are based on information of Royal Dutch Shell/Shell Oil

11 DyVaR: Proven technology for a range of applications 11

12 DyVaR: All-in-one System DyVaR DyVaR ZLD Distillate Mixed Salts Conventional systems Complex Operator intensive Locally controlled DyVaR systems 24/7 operability Robust flowchart Fully autonomous operation Remote controlled

13 DyVaR: Modularity Scalability: 1 Dyvar pot =50l/h 1 DyVaR set=10 pots=500 l/h 1 DyvaR String=30 pots=1500l/h Example: 40x30 ft footprint Capacity m3/hr Skid or containerized design Any size possible Any lay out possible Influent is injected from side manifold, pure water vapor comes out the top and concentrated brine flows out the bottom.

14 Modular systems Static and mobile (skid mounted or containerized) DyVaR-360; m 3 /hr ; 150 m 2 DyVaR-30; m 3 /hr DyVaR-60; m 3 /hr DyVaR-90; m 3 /hr (Footprint:35m 2 ) DyVaR-60 Skidset

15 Example 1: Dairy industry (concentrate) Specifications: Waste stream: TDS (mg/l) COD (mg/l) Crystallization point TDS (mg/l) Fresh water: TDS (mg/l) Solids/Salt slurry: App 120 kg/m3

16 Example 2: Chemical processing Saline/Organics Brine Sample 1 Sample 2 Sample 3 Sample 4 Raw water intermediate Brine Fresh Water ph * * * * EGV ms/cm * * * **100 µs/cm Boron (B) mg/l < 0,05 Calcium (Ca) mg/l < 0,1 Magnesium (Mg) mg/l < 0,1 Sodium (Na) mg/l Sulphate (SO 4 ) mg/l < 0,5 Chloride (Cl) mg/l < 1,2 Figure 1 From left to right: Raw water, Brine 3x conc., Brine 7x conc., Produced condensate *: ph and electric conductivity (EGV) were not measured in the raw and brine samples because the lab added acid required for element analysis too early to the provided samples **: The conductivity of the produced condensate was measured at the lab of Salttech

17 DyVaR: insensitive to chemical compositions Lots of experience with various salts and salt compositions, i.e.: Chlorides Carbonates Sulfates Sulfites Sodium Calcium Potassium heavy metals Influent TDS ranges from mg/l PH range from 1-12 Liquids and solids handling Various TSS sources Range of Hydrocarbons

18 DyVaR: Flexibility Brine Influent Fresh water/effluent Inlet: flexible for any TDS Brine Output: Setpoint=Brine TDS Freshwater : always stable TDS (app 100 mg/l TDS) Applicable for all TDS inlet concentrations

19 Mobile Test unit (50 l/h, 1 DyVaR) DyVaR50 test & demo units

20 Thank You! 2015, Salttech, All rights reserved