Evoqua Water Technologies Pte. Ltd.

Keng Hoo Yeo

Li-Shiang Liang

Lawrence J Salvo

Zhee Min Jimmy Yong

Joseph D Gifford

Kee Hoe Ng

Rongqiang Fu

Chin Hiang Tan

Vivian Leow Hwee Teng

Electrochemical purification apparatuses for treating water and methods of assembling the devices are provided. The apparatuses may be cross-flow electrochemical devices. The devices may be assembled and sealed through masking and application of a potting material. The devices may comprise various structures configured to improve the current efficiency of the device, reduce leakage, and improve the distribution of potting material to the assembly.

Cross-flow electrochemical separation devices and methods of assembling same

An electrochemical separation system may be modular and may include at least a first modular unit and a second modular unit. Each modular unit may include a cell stack and a frame. The frame may include a manifold system. A flow distribution system in the frame may enhance current efficiency. Spacers positioned between modular units may also enhance current efficiency of the system.

Flow distributors for electrochemical separation

Techniques for promoting current efficiency in electrochemical separation systems and methods

Electrochemical separation devices are configured for lower energy consumption. Techniques for reducing shadow effect may involve providing distance between a spacer screen and an adjacent ion-selective membrane. A spacer having a screen that is thin relative to a surrounding frame may be used. Mild pressure may also be applied to a compartment to promote distance between a spacer screen and an adjacent ion-selective membrane.

Systems and techniques for electrodialysis

Modular electrochemical systems and methods

Electrochemical separation modules

Growing community of inventors

Singapore, Singapore

Keng Hoo Yeo