FREEZE CRYSTALLISATION Based on an Environmentally Friendly Technology By Frederick Simon Oosthuizen All Rights Reserved - © 2010 Frederick Simon Oosthuizen Treating of Complex Waters Freezing out the Water Part from a Solution with Dissolved Chemicals. Principle Method of Utilizing the Refrigeration Energy by Freezing out Water in a Contaminated Fluid without the Addition of Chemicals. Theory When a Solution Freezes, the Ice Crystals Reject the Solute. The Dissolved Substances increase in Concentration, allowing an Operating Factor Ranging from 1 to 40 in the Remaining Water. Technology TM The HybridICE Technology consists of a Water Freeze Crystallisation Plant and a Filter System to separate the clean water from the contaminated concentrate. All Rights Reserved - © 2010 Frederick Simon Oosthuizen MINING & INDUSTRIAL SECTOR TM The HybridICE Technology is based on the principles of conventional refrigeration. HybridICE can be integrated into an existing infra structure typically found in both the Mining and Industrial Sector. The technology is ideal for Retrofitting and Modernising existing Refrigeration plants. TM Deep Cast Mines have large refrigeration capacities. Existing cooling systems can be retrofitted for water treatment and in the process improve the existing refrigeration performance. BRINE STREAM TREATMENT FOR REVERSE OSMOSES Membrane technologies are widely installed and used by Industry. The produced Brine Streams from a Reverse Osmoses (RO) is a critical issue in many countries. The treatment of Brine Streams is energy intensive and therefore extremely costly to operate, as these steams are predominantly being fed into Evaporation ponds. All Rights Reserved - © 2010 Frederick Simon Oosthuizen TYPICAL COMPLEX WATER Complex Waters such as Acid Mine Drainage (AMD) and Brine Steams contain Freezing Point Depressant Substances (FPDS) such as chlorides and sulphur. Both AMD and Brine Streams can be used as efficient and environmentally friendly secondary refrigerant in the HybridICE Process without the need for Glycol . TM All Rights Reserved - © 2010 Frederick Simon Oosthuizen TM SCHEMATIC OF THE HybridICE FREEZE CRYSTALLISATION C COMPLEX WATER A LIQUID ICE B INLET: COMPLEX WATER A: B: TM HybridICE FREEZE CRYSTALLISATION PLANT TM HybridICE FILTER SYSTEM D OUTLET: C: D: ICE / CLEAN WATER CONTAMINATED CONCENTRATE All Rights Reserved - © 2010 Frederick Simon Oosthuizen TM PRINCIPLE HybridICE FILTER A: B: C: D: E: F: INLET ICE / COMPLEX WATER FILTER ELEMENT ICE / CLEAN WATER CONTAMINATED CONCENTRATE WATER RESERVOIR HEAT EXCHANGER C B C E F A D All Rights Reserved - © 2010 Frederick Simon Oosthuizen HybridICE FILTER SYSTEM – HIF SERIES TM All Rights Reserved - © 2010 Frederick Simon Oosthuizen TM HybridICE FREEZE CRYSTALLISATION PLANT All Rights Reserved - © 2010 Frederick Simon Oosthuizen ADVANTAGES FOR MINING & INDUSTRAL SECTOR Conventional Cooling Technology can used to treat AMD or Brine Stream TM The HybridICE Process requires No Chemical Addition Process recovers clean and usable water from Complex Waters Significantly Reduces the Volume of Contaminated Fluids Quality Air for a Healthy & Safer Working Environment for Mineworkers Recovers Water with high Cooling Capacity Thermal Energy well suited for High Peak Cooling Loads Flexible Operating Strategies Possible Cheaper Off-Peak Energy – Load Shift All Rights Reserved - © 2010 Frederick Simon Oosthuizen WASTE BRINE TREATMENT FROM REVERSE OSMOSES (RO) PLANTS Excellent Energy Management Strategy Low Temperatures reduce Scaling and Corrosion TM Unlike Membrane Technologies, HybridICE is not Sensitive to Impurities such as mud or Heavy Metals Waste heat from for heating the Evaporation Ponds Up to four times higher concentration than membrane-based RO The High Concentrate and reduced Brine Stream from the HybridICE Process can reduce the evaporation cost by up to 75% TM Significantly increases the capacity of existing Evaporation Ponds No Chemicals Required All Rights Reserved - © 2010 Frederick Simon Oosthuizen ADVANTAGES FOR INDUSTRIES Feasible Solution for reducing Toxic Fluids Energetic and Safety Advantages Cost reduction by using Off-Peak Operations Environmentally Friendly Ecologically-Efficient All Rights Reserved - © 2010 Frederick Simon Oosthuizen TM FEATURES OF HybridICE COMPONENTS Retrofitting existing Refrigeration Systems Significantly reduces HFC Optimisation of Energy Consumption Containerized Plug & Play Modules Small Refrigerant Charge Service Friendly & Easy to Maintain All Rights Reserved - © 2010 Frederick Simon Oosthuizen ENERGY AND COST ENHANCEMENT HybridICE - offers itself as an economically feasible solution to Recover Fresh Water were Energy is Critical and Disposal of Contaminated Fluids are Costly. TM Process is not sensitive to impurities e.g. mud / metals unlike membrane technology. HybridICE Process requires no chemical addition. TM Waste heat from the refrigeration cycle can be utilized to heat the concentrate. The thermo-physical Properties of contaminated fluid as secondary refrigerant makes it an ideal medium for thermal energy storage, transport and transfer of cold energy. The Process is ideal to reduce air temperature and humidity in the mines. All Rights Reserved - © 2010 Frederick Simon Oosthuizen FEASIBILITY Contaminated Fluid is an efficient two-phase Secondary Refrigerant Retrofitting and Utilizing of existing Refrigeration Equipment possible Significantly reduces the amount of Primary Refrigerant Usable Water can be recovered without addition of Chemicals All Rights Reserved - © 2010 Frederick Simon Oosthuizen Eco-MeRe™ ENHANCEMENT TECHNOLOGY Acid Mine Drainage (AMD) often contain high levels of metals apart from other harmful and toxic substances. When a HybridICE System is installed, the contaminated fluid is concentrated. TM This concentrated fluid can contain valuable metals such as Cobalt, Copper, Nickel and Uranium. These Metals can be recovered with the eco-MeRe™ System, a complimentary product of HybridICE . TM The eco-MeRe™ is an electro-coagulation technology. This System has been designed to salvage valuable metals and remove iron and other harmful substances effectively. The combination of the eco-MeRe™ and HybridICE can ensure that the recovered water can be used as industrial water or returned safely back into the environment. TM All Rights Reserved - © 2010 Frederick Simon Oosthuizen SOLUTIONS IN PARTNERSHIP All Rights Reserved - © 2010 Frederick Simon Oosthuizen