Founded in 2024, ElequaNova Limited is a Hong Kong–based environmental technology company turning advanced electrochemical science into real solutions for wastewater and sludge treatment. Backed by Hong Kong’s RAISe+ Scheme and Green Tech Fund, we develop and deliver next-generation systems designed for some of the region’s toughest waste challenges, ranging from landfill leachate to saline sludge.

Our proprietary electrochemical oxidation platform, ECO^®, delivers high-efficiency pollutant removal without chemical additives and has demonstrated its scalability through one of the world’s largest pilot-scale electrochemical leachate treatment systems. Complementing this, our LEEO^® saline sludge treatment technology reduces odor, suppresses hydrogen sulfide (H₂S), and improves dewaterability for Hong Kong’s unique saline waste profile.

Building on these achievements, ElequaNova is expanding its R&D to address PFAS, pharmaceutical wastewater, and solar-panel manufacturing effluents, supporting industries in their transition to cleaner, more sustainable operations. By collaborating with municipal authorities, industry leaders, and research partners across China, we’re accelerating the adoption of innovative, data-driven water technologies that make a measurable impact on the environment.