The HL-EC reactor revolves around the electrocoagulation process, which is well-known for its efficacy in removing impurities from a wide range of industrial effluents – These include the infamous heavy metals, suspended particles, organic compounds and dyes. In this process, an electrical potential is applied to submerged electrodes such as Aluminium or Iron, to generate metal cations that act as coagulants. In turn, they undergo side reactions with the contaminants to form flocculants. Aggregates can then be subsequently removed by physical processes easily, depending on whether they float to the surface of the water, or settle at the bottom.