The 2026 Guangdong Provincial Conference on Technical Supervision of Power Plant Chemistry concluded in Foshan,bringing together representatives from major power generation companies,industry experts and technical advisers.Aquacells was invited to attend and deliver a technical presentation on its domestically developed electrodeionization(EDI)technology.

Power plant chemistry supervision helps ensure the safe,efficient and stable operation of generating units,with water quality control playing a central role.Boiler makeup water treatment and condensate polishing are two critical processes.They help control corrosion,scaling and salt deposition in the water-steam cycle,affecting thermal efficiency,operating costs and equipment service life.

A typical boiler makeup water treatment train comprises pretreatment,reverse osmosis(RO),EDI and a demineralized water storage tank.Installed downstream of RO,EDI provides final demineralization and can replace a conventional mixed-bed ion exchange unit.It produces high-purity demineralized water without acid or alkali regeneration.

In response to feedback from power plant customers,Aquacells has developed a high-temperature EDI module for condensate polishing.The technology is intended to address fluctuations in treated water quality and the operating costs associated with conventional mixed-bed treatment.

In the conventional mixed-bed process,condensate must be cooled to 40°C before treatment.The resin also requires acid and alkali regeneration,which generates regeneration wastewater.

Aquacells’patented high-temperature EDI technology allows condensate to enter the EDI module at 65°C for continuous treatment.The reduced cooling requirement can cut energy use by more than 40%compared with the conventional process described above,while avoiding wastewater from acid and alkali regeneration.

Aquacells EDI modules improve overall performance by more than 20%.The patent-level flow channel design inhibits oxidation at its source,extending system service life by over 30%.Widely used in thermal power,combined heat and power,and distributed energy projects,these modules help companies reduce costs and improve efficiency while supporting technological upgrades through domestically developed solutions in China’s power-sector water treatment industry.

Aquacells will continue to develop membrane materials and equipment for ultrapure water treatment.It also plans to strengthen technical exchanges with industry partners and universities,use feedback from power plant operators to refine its solutions,and support safer,more efficient and lower-carbon power generation.