Technologies

SG Enviro’s Plasma-Nanobubble process works by generating plasma-active gas, dissolving it into nanobubbles, and creating reactive oxidants through an Advanced Oxidation Process. These oxidants then interact with pollutants in wastewater, supporting oxidation, disinfection, and degradation of difficult contaminants. This process is especially useful for industries dealing with complex wastewater that may not respond well to conventional biological or chemical treatment.

Nanobubbles are important because they stay suspended in water much longer than normal macro-bubbles. This improves gas transfer, increases contact time with pollutants, and helps deliver reactive oxidants more efficiently. Their small size, high internal pressure, and long-lasting stability make them useful for advanced water and wastewater treatment applications.

Non-thermal plasma is an energy-efficient oxidation technology that uses electrical discharge to generate reactive species such as oxygen radicals and hydroxyl radicals. These reactive species can help degrade organic compounds, disinfect wastewater, and support the removal of difficult pollutants without relying heavily on traditional chemicals.

Conventional wastewater treatment often depends on biological degradation, chemical precipitation, flocculants, disinfectants, and large treatment tanks. Plasma-Nanobubble Technology uses advanced oxidation, reactive oxidants, and physical cavitation to target pollutants more directly. This can reduce chemical usage, lower sludge generation, and allow a more compact and modular system design.

Plasma-Nanobubble Technology can significantly reduce the need for added treatment chemicals because it generates reactive oxidants from air or water. In many applications, this supports minimal-to-zero chemical usage compared with conventional methods that rely on flocculants, disinfectants, or heavy chemical dosing. Final chemical requirements may still depend on the wastewater composition and discharge standards.

Yes. Plasma-Nanobubble Technology can help reduce sludge by breaking down organic contaminants through oxidation instead of mainly transferring pollutants into sludge. This supports a cleaner treatment process and can reduce the amount of secondary waste that needs handling, disposal, or further treatment.

Plasma-Nanobubble Technology is suitable for challenging industrial wastewater containing complex organic compounds, colourants, odour-causing compounds, pharmaceutical residues, and other recalcitrant pollutants. It can also support disinfection and degradation of difficult contaminants. Actual treatment performance should be validated through wastewater testing and process design.

Plasma-Nanobubble Technology is relevant for difficult pollutants such as PFAS-related streams, dyes, and pharmaceutical residues because it uses advanced oxidation and reactive species to attack strong chemical bonds. However, performance depends on the specific contaminant profile, concentration, wastewater chemistry, and treatment objective. A lab test or pilot study is recommended before full-scale implementation.

Plasma-Nanobubble Technology supports sustainability by reducing chemical dependency, lowering sludge generation, improving treatment efficiency, and enabling more compact system design. For industrial operators, this can support ESG goals, cleaner operations, and better resource efficiency compared with treatment approaches that rely heavily on chemical dosing or large physical infrastructure.

Yes. Plasma-Nanobubble Technology can support ESG targets by helping companies reduce chemical usage, minimise secondary waste, improve wastewater treatment efficiency, and support cleaner discharge or water reuse strategies. This is especially relevant for manufacturing, pharmaceutical, semiconductor, food, textile, oil and gas, and other industrial sectors with stricter environmental requirements.

Plasma-Nanobubble Technology is designed to improve energy efficiency by delivering reactive oxidants more directly to pollutants through nanobubbles. Compared with conventional systems that may require high aeration, large settling tanks, or repeated chemical dosing, PNB systems can offer a more targeted and compact treatment approach. Final energy performance depends on system design, wastewater load, and treatment goals.

Yes. Plasma-Nanobubble systems can be designed as compact and modular units, making them suitable for integration into existing wastewater treatment infrastructure. This allows companies to upgrade treatment performance without always requiring a complete replacement of their current wastewater treatment plant.

SG Enviro provides customised industrial wastewater treatment solutions using an Engineering, Procurement and Construction approach. Its Plasma-Nanobubble and Non-Thermal Plasma technologies are positioned for industrial-scale applications in Singapore and Southeast Asia, helping clients address complex wastewater challenges while working toward sustainability and compliance goals.

Yes. By improving the treatment of industrial wastewater, Plasma-Nanobubble Technology can support broader water recycling and reuse objectives. Treated industrial water can be reused for selected applications depending on treatment quality, regulatory requirements, and process needs. PUB Singapore also highlights industrial wastewater recycling and reuse for applications such as cooling tower feed, boiler feed supplement, material washing, irrigation, and toilet flushing when properly treated.