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Mech-Chem - Wastewater Recovery and Recycling Systems
Nearly every company in the manufacturing industry must deal with wastewater problems. The best and most cost-effective solution for these problems is to recover and purify the wastewater.
By recycling the recovered water back into the manufacturing process, you can:
- Reduce wastewater treatment costs
- Reduce waste disposal costs
- Minimize the quantities of rinse water generated
- Improve water quality and temperature
- Provide a constant source of DI water
- Maximize recovery of precious metals in the wastewater
- Reduce EPA compliance requirements
Wastewater usually consists of rinse water and wastewater streams with low levels of contaminants which can be recovered and recycled back the manufacturing operations. Most manufacturing plants could recycle about 80% of the water used in their production process.
Mech-Chem Associates, Inc. has expertise in solving industrial wastewater problems from many major industries, with the focus on rinse water and wastewater recovery and recycling projects in these applications:
- Metal Finishing
- Electronics
- Chem Milling
- Acid Etching
- Automotive Components
- Aircraft Components
- Glass manufacturing
- Aluminum Alloys
- Stainless Steel
- Metals Processing and Fabrication
Mech-Chem has developed several unique process designs which treat rinse water and wastewater streams and produce RO or DI quality water. Mech-Chem also combines these technologies with vacuum evaporation to provide completely closed loop-zero discharge systems. Mech-Chem utilizes several technologies, choosing the best equipment and methodology to produce the water quality required by your production operations.
Mech-Chem utilizes combinations of the following technologies to provide integrated rinse water and wastewater recovery and recycling systems.
Carbon FiltrationCarbon filtration is often the first step in the filtration process. Its function is to remove organic matter (i.e. oils, grease, solvents, and surfactants) from the wastewater stream.
UF/RO SystemsUltra Filtration (UF) and Reverse Osmosis (RO) systems are normally used in conjunction with other filtration systems to provide clean water can be recycled back into the manufacturing system.
An example of a UF/RO system is found in this case study.
Ion Exchange Resin SystemsIon exchange is used to remove dissolved ions (anion and cation) from the water through the use of synthetic resins, resulting in an extremely high level of purity. During the ion removal process, the ions are bound to the resin and then released and removed during the regeneration cycle. This ion exchange resin is regenerated using strong chemicals (acid and caustic) that remove the ions captured by the resin.
In cases where the rinse water or wastewater contains suspended oils and grease from machinery operations, other systems are utilized to first remove the oil and grease, then is processed through other purifying systems.Evaporation SystemsEvaporation systems are used in closed-loop or zero-discharge systems. By evaporating the wastewater, the smallest particles of contaminants are removed, resulting in a ultra-pure water. The concentrated waste, which is less than 1% of the water processed, can be hauled off-site in significantly smaller amounts, reducing your hauling and dumping costs.
