RedBox is our compact, automated wastewater treatment system based on electrocoagulation: a safe and chemical-free technology that ensures maximum efficiency and convenience in industrial wastewater treatment.
Electrocoagulation is a proven technique for water purification based on electrochemical technology: using electricity and electrodes, contaminants are bound into flocs, without the use of flocculants or polymers. The flocs are easily filtered from the clear water and concentrated into a compact filter cake. Purified water can be reused or discharged at a reduced cost.
RedBox adapts to your situation with a modular design: easily expand your capacity by adding an additional reactor. Each RedBox is compact, space-saving, and easily fits into your facility. We also supply built-in containers to overcome space constraints or for mobile applications.
Morselt RedBox
The features of RedBox at a glance:
• Removal of various contaminants in one process step
• Compact, delivered ready for installation
• Simple automated process operation
• Reduced sludge volume because usually no chemicals are required
• Reduced environmental costs through water reuse or lower wastewater discharge costs
• Safe because usually no chemicals are required
• Reliable: from design to installation and service, all under one roof.
Electrocoagulation
Electrocoagulation is a proven electrochemical technique to purify wastewater or process water. Electrocoagulation uses electricity instead of chemical reagents to remove soluble and colloidal contaminants from wastewater and process water. The technique is applied in industries as chemicals, metal, textiles, food, cardboard and paint.
Industrial scale electrocoagulation was first used around 1900 for treatment of ship bilgewater. In the following decades, the technique was applied increasingly for different wastewaters. An important driver was that this technique removes various contaminants simultaneously in one single step. Electrocoagulation is attractive because the technology usually works without chemicals, is technically simple and robust and systems are compact and easy to automate.
Electrocoagulation works with sacrificial iron and/or aluminum anodes. These are placed in a reactor through which the contaminated water flows. Direct current is applied to the electrodes, normally 5-10V, and the anode will release ions into the water. These ions form hydroxides that, like in classical water treatment, bind contaminants creating flocs that float or settle. This process is quick: often the residence time in the reactor is not more than 20 minutes.
The flocs with contaminants are easily separated from the purified water. Morselt normally uses a chamber filter press that concentrates contaminants into the smallest possible volume of filter cake. The press produces a clear water filtrate that can be reused or discharged at reduced cost.
For an optimal electrocoagulation process, a specific pH range and good conductivity of the water is important to minimize power consumption. If necessary, pH and conductivity can be optimized to ensure the most efficient process possible. Morselt is happy to advise you on this.
