Revolving Algal Biofilm (RAB™) System. Our innovative algae-based wastewater treatment technology is the most cost-effective solution to sustainably and reliably recover nutrients from wastewater.

GWT’s RAB™ system can be implemented and used for a wide variety of applications to ensure your facility complies with new, more stringent municipal and industrial wastewater discharge permits. Many industries in the food and beverage space are facing higher surcharge rates.

Our patented, innovative RAB™ technology uses vertically oriented conveyor belts that grow algae on their surface. As the algae grow, it consumes nitrogen and phosphorus from the wastewater while it uses sunlight and carbon dioxide from …

GWT’s core technology, the Revolving Algal Biofilm (RAB™) system is a novel approach to nutrient recovery from wastewater. Utilizing algae, the RAB system offers a more sustainable solution compared to conventional wastewater treatment techniques and does not require energy-intensive aeration and chemicals.

GWT’s revolving algal biofilm (RAB) system effectively recovers nitrogen and phosphorus from wastewater while producing algae biomass that can be sold as a fertilizer or bioplastic. Not only does Gross-Wen Technologies supply a superior water treatment solution in terms of environmental impact, but our process is also a less expensive one.

2021年1月21日 · The project utilizes GWT’s existing Revolving Algal Biofilm (RAB) system which removes nitrogen, phosphorus and other pollutants from wastewater, while producing algae biomass from waste nutrients and carbon dioxide captured from the air.

2025年3月1日 · By re-orienting an algal biofilm vertically onto a conveyor belt, Gross-Wen Technologies’ (GWT) Revolving Algal Biofilm (RAB) system (photo) overcomes these hurdles with its unique design that maximizes algae surface area and optimizes the gas-liquid interface.

Gross-Wen Technologies uses its patented wastewater treatment technology, known as the revolving algal biofilm system (RAB), to cost-effectively recover nutrients such as nitrogen and phosphorus from wastewater.

Global leaders in energy, water, and aviation are in investing in algae to SAF. GWT’s business model and technology is at the center of it.

2022年11月15日 · The project’s main objective is to advance GWT’s rotating algal biofilm (RAB®) technology, an algae-based wastewater treatment method that encourages nutrient recovery while lowering water utilities’ carbon footprint.