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Water pollution is one of the largest threats facing the global population. Water is a finite resource. Once polluted, it cannot be set aside in the hopes that the environment will "make" new, clean water. One procedure often employed to treat wastewater is coagulation/flocculation. While the coagulation/flocculation procedure in wastewater treatment is effective, it involves the addition of chemical components to the water being treated. Recently, a great deal of attention has been given to less traditional alternatives to the typical process of coagulation/flocculation. One such approach receiving good deal of attention is a process called electrocoagulation. Electrocoagulation is a coagulation process carried out by an electrical charge.
There are enough materials for 15 groups. Teacher's manual and student copymasters are included. Materials Included in Kit: 30 aluminum electrodes, 15 red connecting wires w/alligator clips, 15 black connecting wires w/alligator clips, 1 sodium sulfate (15g), 1 0.1% crystal violet (15ml). Materials Needed but Not Supplied: beakers, 200ml; 9-volt batteries. Optional: Funnels, Filter paper.