Multi-Product Seawater Refinery for Water, Hydrogen, and Critical Minerals

Multi-Product Seawater Refinery for Water, Hydrogen, and Critical Minerals: A Unified Architecture for Seawater Resource ExtractionThis paper presents the first unified treatment of a three-module electromagnetic seawater refinery that simultaneously extracts bulk minerals, critical trace ions, freshwater, hydrogen, oxygen, and salt from a single seawater intake. It is the capstone paper of the Griffiths Canon seawater resource programme, integrating three previously separate architectures into a single governed system for the first time. The ArchitectureThree electromagnetically governed modules operate in sequence, each making every subsequent module more efficient:Module 1 — Bulk-Ion Stripper (BIS): Wide-band EM capture strips Mg²⁺, Ca²⁺, Sr²⁺, and Na⁺ into dedicated product tanks before the feedstock reaches any downstream process. At 10,000 m³/day, Mg²⁺ recovery alone generates USD 8.3–10.4 million/year. The encounter-frequency equation P = σ·n·v·τ provides the falsifiable physical mechanism guaranteeing trace-ion preservation through this stage.Module 2 — Field-Governed Rare-Ion Concentrator (FG-RIC): Operates on BIS-conditioned feedstock. BIS preconditioning reduces the Mg²⁺:Li⁺ mass ratio from ~7,000:1 to ~400–700:1, structurally transforming FG-RIC performance: Li⁺ recovery 42% → 88%, REE 31% → 79%, uranium 28% → 74%. Total FG-RIC energy falls 58%. Coil fatigue falls 75%. All three target ion classes cross the commercial viability threshold for the first time.Module 3 — EM Microwave Cracking + Desalination + H₂EM: Tube-in-waveguide architecture (TRL-6 hardware) cracks ~7% of intake into 11.2 t/day H₂ and 88.8 t/day O₂. BIS preconditioning reduces EM desalination energy from 6.9 to 3.0 kWh/m³ (−57%). Dual-configuration: Config B exports H₂ to a co-located ammonia plant; Config A routes H₂ to internal PEMFC for ultra-pure water and electricity recovery. ZLD brine is simplified to near-pure NaCl after BIS removes bulk divalents upstream.All three modules are governed by the DIGSP unified supervisory architecture, with a two-layer control hierarchy optimising the coupled system in real time. Three Category-Defining Contributions1. First physically falsifiable unified field-governance framework spanning bulk cation extraction, trace-ion selective capture, and EM-driven molecular water dissociation — three ionic transport regimes under one governing discipline.2. Demonstration that BIS preconditioning is the structural enabler of commercially viable rare-ion recovery: a 110–164% uplift across all FG-RIC target species, enabled by the removal of bulk divalent competition before the feedstock reaches the FG-RIC.3. Integrated nine-stream economic model: USD 41.7–55.2 million/year at 10,000 m³/day mid-case, with sub-eighteen-month CAPEX payback at refinery scale. Freshwater is a co-product. The refinery does not compete against a water plant on water cost — it competes against five separate conventional facilities simultaneously, and replaces all five. The Nine Revenue StreamsMg²⁺ · Ca²⁺ · Sr²⁺ · Na⁺ (BIS) · Li⁺ · REE · uranium species (FG-RIC) · H₂ · O₂ · freshwater · NaCl salt · EM desal energy savings.No single stream is required for viability. The eight non-hydrogen streams collectively generate USD 23.7 million/year at mid-case — more than the entire revenue of a standalone SWRO plant at the same throughput. What This Paper ClaimsA manufacturable, physically falsifiable, economically modelled unified architecture for seawater resource extraction. Every governing equation is testable. The two critical experimental unknowns — BIS sequential desorption ordering and Module 3 cracking efficiency — are resolvable at bench scale for under USD 50,000 combined before any pilot plant investment.The ocean is not a water source requiring purification. It is the world's largest accessible multi-resource chemical repository. This paper defines the governed extraction architecture that makes it commercially accessible at industrial scale. Relationship to the Griffiths CanonThis paper is the terrestrial commercial capstone of the Griffiths Canon field-governance programme. The same DIGSP supervisory discipline, EM field-shaping principles, and threshold-enforcement architecture applied across the Canon to plasma confinement (CSFR), propulsion nozzle shaping (REMN/GREMN), and microwave cracking governance (CSMMC) are applied here to the liquid-phase ion-transport problem at ocean scale.Companion papers: Griffiths, W. (2026). Bulk-Ion Stripper (BIS) · Field-Governed Rare-Ion Capture (FG-RIC) v2.0 · EM-Driven Seawater Refinery v4.0 · AAJ Vol. 6, No. 2 Canon series [1]–[5]AEMS LLC — Griffiths Canon Research Group | Auckland, New Zealand | wayne@aems.tech | ORCID: 0009-0009-4905-7909