Marsh Industries’ Natural Solutions portfolio represents a significant advancement in sustainable wastewater treatment, responding to increasingly stringent nutrient reduction requirements across Europe. Central to this range is the Marsh Nutra-Lite™, an advanced Sequential Batch Reactor (SBR) sewage treatment plant designed to achieve biological nitrate reduction without external chemical or carbon dosing. Through optimised SBR process control, Nutra-Lite promotes natural nitrification and denitrification, delivering up to 84% nitrate reduction while maintaining compliance with BS EN 12566-3. By relying on biological pathways rather than chemicals, the system reduces operational complexity, cost volatility, and environmental impact. Complementing nitrate removal is the Marsh Phos-Lite™ tertiary treatment unit, which provides chemical-free phosphate reduction using a proprietary mineral adsorption media. Phosphate is removed through passive binding to the media, consistently achieving effluent concentrations as low as 0.2 mg/L without ferric or aluminium dosing. This approach avoids the need for pH suppression, and ongoing chemical handling typically associated with conventional phosphate removal methods. Together, Marsh Industries’ Natural Solutions deliver robust, low-maintenance nutrient reduction aligned with nutrient neutrality objectives, offering regulators, designers, and operators a proven route to phosphate and nitrate control that is sustainable, resilient, and free from chemical dosing.