



Compression
Brochure (pdf)
Distillation Brochure (pdf)RO systems and the discharge stream disposal: the difficulties in managing the large amounts of concentrate produced
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BOTH ZERO LIQUID DISCHARGE AND REJECT BRINE DISPOSAL COSTS WILL HAVE GREATER IMPACT THAN ENERGY PURIFICATION COSTS IN THE DESALINIZATION OF SEAWATER OR WASTEWATER Zero Liquid Discharge is not free and costs are best controlled by combining the Vapco vapor compression system for first phase desalination/concentration and SunDragon Zero Liquid Discharge Salt Factories for salt and constituent recovery. The current practice of discharging reject brine to the sea is being disputed and challenged by many environmentalists. They claim that reject brine is harmful to the environment and marine life. It is only a matter of time before the environmentalist win. Ocean disposal of reject brine is also under heightened scrutiny
by governments world wide as evidenced by mounting fees and fines.
Many plants currently discharging to coastal waters are being
threatened with closure. At fifteen cent cost per kWh of electricity, Vapco vapor compression produces distilled water at .006 cents per gallon. If your electric cost is seven and one half cents per kWh, the cost per gallon of distilled water is .003 cents per gallon. The cost of brine disposal without zero liquid discharge may be higher than the cost of the purified water. For example, the Vapco system rejects 120,000 gallons of 210F brine per million gallons of treated seawater, based on 35,000 ppm. The hotter the reject brine, the more efficient the salt or constituent recovery. SunDragons utilize solar power or waste heat for the recovery of dissolved solids. Hot brine allows the SunDragon evaporation to proceed in a more cost efficient manner. A SunDragon requires a reject brine with a minimum 300,000TDS for cost efficient Zero Liquid Discharge. Solids recovered are disposed of as solid waste or may be of additional value. A major advantage of a SunDragon is Zero Liquid Discharge producing solid waste for disposal, needs no discharge permitting, monitoring, compliance cost and time. The resulting near-dry salt bulk density is about 40 lbs/ cu.ft. That represents about 7,300 cu. ft. of salt/million gallons for disposal, or about the volume of 54,700 US gallons of water. |
Maloney Process Inc. a California Corporation.
MALONEY PROCESS DISTILLATION
MPI employs a Vapor Compression technology to extract both Sensible Heat and the Latent Heat to produce distilled water. Mpi has a more advanced technology that was partly developed from these sources and especially from basic distillation principles.
Maloney Process Inc. Vapor Compression Distillers Low power consumption, Low operating costs, no membranes or chemicals, 5% reject water per day and corrosion resistant.
Vapor compression systems produce 10,000 gallons- 20,000 gallons per day.
Point-of-Use Distillation System for, sugar and starch waste water, oil & gas produced water , groundwater remediation, landfill leachate treatment, sewer water treatment and transit authority wash and repair facilities.