Trappist monks in the Netherlands are providing two of life’s essentials – clean drinking water and good beer – simultaneously. The monks’ religious order has been brewing beer since 1884 but needed to come to terms with the increasingly dire need for clean water in today’s world.

The abbey now has a specialty greenhouse that enlists 200 plant species and 3,000 types of bacteria in a process that can treat 438 cubic meters of wastewater daily. That’s important because the brewery produces 15 cubic meters of wastewater each hour while making 10,000 bottles of beer an hour.

We at zNano understand the need to produce good beer while protecting water supplies. Here in California, we helped a malting company in Alameda save water. As they say at Admiral Maltings, “Malt is the story of beer. It’s the heart and soul of a good pint.”

The challenge, however, is that the malt process is waste-intensive. Previous studies indicated that the reuse of water would cripple the malt’s unique flavors so, after considering several options costing more than $1 million USD, Admiral contacted zNano to provide a more economical direct-filtration advanced water recycling system to restore water used in the malt process.

Before work began, zNano proved that restoring water to near its original condition allows the water be reused in the next batch of malt without affecting the malt’s flavor. Direct membrane filtration eliminates the need for a bioreactor, flocculation, and/or coagulation system — saving capital and operating costs. The plant now is restoring over 75 percent of the wastewater it treats and is enabling Admiral Maltings to meet its sustainability goals. Read our case study here.