In some wastewater treatment systems, even if the desired amount of water is reached, concentrated wastewater that cannot be treated may be left behind. Especially in reverse osmosis systems, it can be said that permeate water is the concentrated form of wastewater.

ZLD, Zero Liquid Waste Discharge (Zero Liquid Discharge) It is a definition derived from the initials of the words. Zero liquid waste discharge is the principle of a treatment system consisting of one or more systems where all wastewater is purified and only clean water remains. Pollutants in water are obtained in solid form at the end of the treatment cycle. These solid form salts can be recycled or reused on an industry basis.

With wastewater pre-treatment, the solids content is significantly reduced. In the next step, water can be purified up to by using membrane technologies (Reverse Osmosis, Electrodeionization). Finally, the permeate is purified by evaporation, which is a thermal process, leaving the salt in solid form.

Zero liquid waste discharge can be used effectively in many areas, but the same system may not be used for every wastewater character. Waterland offers you zero liquid waste discharge systems with the most optimum solutions suitable for your water character.