From sewage to 100% H2O
NWTR’s pure water plant obtains its influent from the adjacent traditional wastewater treatment plant. In the pure water plant, all salts and other substances are extracted from the water by means of four different techniques. The water is treated in four steps, which are described in full below.
- Treatment steps in a nutshellThe advanced purification removes all salts and other substances from the water, leaving ultra pure water as the end product.
- Step 1 UltrafiltrationThe ultrafiltration system removes even the smallest undissolved compounds from the WWTP effluent. No chemicals are required for this.
- Step 2 BODAC: Biological Oxygen-Dosed Active Carbon FilterBio-foiling of osmosis membranes is a persistent problem. NWTR solved it with a biologically active carbon filter. Without chemicals.
- Step 3 Reverse osmosis (RO)With the first reverse osmosis, 98% of all dissolved salts (minerals) are removed.
- Step 4 Electro-deionisation (EDI)The last step, a combination of RO and EDI, removes the last dissolved minerals (ions).