The client, who produces thousands of tons of hazardous wastewater every year, desired an alternative to the existing method of removing the hazardous waste water by tanker truck and treating it off site, which was required 66 times per year.
Once at the off site facility, a number of treatment systems were used including distillation, critical fluid extraction, chemical coagulation/flocculation, and biological.
The client was seeking a technology capable of removing the hazardous components in their wastewater. The MPPE (Macro Porous Polymer Extraction) system, capable of removing certain hazardous contaminants with up to 99.9999% removal efficiency by utilizing a proprietary extraction liquid immobilized in porous polymer beads, was evaluated to assist them in reaching their wastewater treatment goals.
Technology Design Data
After a pilot plant trial with a mobile MPPE unit performing at 33% of the capacity of the proposed installed unit proved successful, the client installed a full scale MPPE system.
The system is fully self contained, automated and capable of remote control throughan internet connection. The system is extremely flexible and can treat higher concentrations at only slightly lower flows. It operates at ambient temperatures and is not affected by interference from dissolved iron, heavy metals, surfactants, salts and polar compounds. There is no biological fouling due to periodic in situ regeneration by low pressure steam. There are no chemical additions, no air emissions, no sludge formation, and it is possible to recover an almost 100% pure hydrocarbon product which can easily be reused or recycled. The performance of the system in regards to removal efficiency is guaranteed for the operational life of the system.
The evaluation of the MPPE system include the construction and fabrication of all system parts and components. Also considered are the emissions caused by the production of power to run the electrical components and those coming from steam generation. The freight emissions from transportation of materials and personnel are also included in this analysis.
For the hauling and treatment of the wastewater per the clients prior solution, the evaluation included the freight emissions from the transportation of wastewater off site to a predetermined wastewater treatment facility. The treatment operations at the facility include electricity to run the operation, chemical addition and sludge production.
Carbon Footprint per Cubic Meter of Water Treated*
Carbon Footprint over Life Expectancy of the System*
*Note: All elements listed were evaluated.
Only those with a measurable quantity are depicted.
The MPPE system operates at a smaller carbon emissions footprint than the prior method of shipping and treating the wastewater off site. There are no waste streams, air emissions, chemical additions or sludge generation. The porous polymer beads have a long lifetime and are reused. The extracted hydrocarbons are recovered, in situ, and can be reused. While reducing carbon emissions, the client also saved money. The new MPPE system had an ROI of 18 months.