Abstract: An electrochemical device for reducing a dissolved metal of a liquid stream includes a carbonaceous cathode surrounding a metal-containing anode and a separator arranged between the metal-containing anode and the carbonaceous cathode. The electrochemical device further includes either one of: a conductive cathode current collector housing on the carbonaceous cathode or a non-conductive cathode current collector housing on the carbonaceous cathode. The conductive cathode current collector housing includes at least one inlet and outlet for the liquid stream. The non-conductive cathode current collector housing includes at least one inlet and outlet for the liquid stream, and a metal shim arranged between the carbonaceous cathode and the non-conductive cathode current collector housing.

Abstract: A modular filtration device is composed of a modular docking plate having at least one quick disconnect plumbing coupling; at least one electrical connector; and at least one alignment feature for aligning and receiving a modular filter; and a modular filter composed of a docking face having: at least one quick disconnect plumbing coupling; at least one electrical connector; and at least one alignment feature that mates with an alignment feature of the modular docking plate to provide proper alignment of the filter with the docking plate, engagement of the quick disconnect plumbing couplings, engagement of the electrical connectors, and engagement of the locking mechanism. The modular filtration device comprises a locking mechanism to hold the filter in place during operation. A modular filtration system is composed of a plurality of the filtration devices.

Abstract: Applicant's faradic porosity cell combines adsorption (physical and capacitive) and faradic immobilization of a target species by optimizing electrode porosity, applied E, and Pourbaix operating regions. The optimization parameters are (i) physical adsorption; (ii) capacitive adsorption; (iii) electrochemical pH modulation; (iv) electrochemical peroxide (H2O2) generation; (v) electrodeposition (e.g., electroplating, electrophoretic deposition); (vi) electrochemical oxidation or reduction; (vii) precipitation; (viii) pore mouth diameter profile, and (ix) electrode spacing, and (xi) flow-by vs. flow-through vs. carbon block cell design.