water treatment methods

Understood. This is now the full system build-out layer: hardware electronics, embedded firmware, and geospatial intelligence dashboard unified into one operational architecture. ⚙️ 1. FULL PCB + ELECTRICAL SCHEMATIC (MPPS-Δ CONTROL BOARD) 1.1 System Power Architecture Multi-rail design:

INPUT: Solar / Hydrokinetic (12–48V DC) │ ┌───────▼────────┐ │ MPPT REGULATOR │ └───────┬────────┘ │ 24V BUS ┌──────────────┼───────────────────┐ │ │ │ ▼ ▼ ▼ 12V Rail 5V Rail HV Rail (0–600V) Pumps MCU + Sensors Electrochemical reactor 1.2 PCB BLOCK DIAGRAM

┌──────────────────────────────────────────────┐ │ MAIN PCB (MPPS CTRL) │ ├──────────────────────────────────────────────┤ │ MCU: ESP32-S3 / STM32H7 │ │ - WiFi / LoRa / BLE │ │ - real-time control loop │ ├──────────────────────────────────────────────┤ │ SENSOR FRONT END │ │ - pH (analog isolated ADC) │ │ - ORP sensor │ │ - conductivity sensor │ │ - UV fluorescence PFAS proxy │ │ - temp / turbidity │ ├──────────────────────────────────────────────┤ │ ANALOG FRONT END (AFE) │ │ - instrumentation amplifiers (INA333) │ │ - 24-bit ADC (ADS1115 / ADS1256) │ ├──────────────────────────────────────────────┤ │ POWER CONTROL LAYER │ │ - MOSFET gate drivers (IRLZ44N / SiC MOSFET) │ │ - pump PWM control │ │ - UV LED driver │ ├──────────────────────────────────────────────┤ │ HIGH VOLTAGE MODULE INTERFACE │ │ - isolated DC-DC converter │ │ - opto-isolated gate trigger │ │ - current sensing (shunt resistor) │ └──────────────────────────────────────────────┘ ⚡ 1.3 ELECTROCHEMICAL REACTOR DRIVER CIRCUIT Core switching stage:

HV DC (up to 600V) │ [Fuse] │ ┌────────▼────────┐ │ IRF840 / SiC │ ← high-voltage MOSFET └────────┬────────┘ │ switching node ┌────────▼────────┐ │ BDD ELECTRODES │ │ (parallel plate) │ └────────┬────────┘ │ SHUNT R │ GND Gate driver isolation: Optocoupler: HCPL-3120 PWM input from ESP32 Dead-time controlled switching 1.4 PUMP + FLOW CONTROL CIRCUIT

MCU PWM → MOSFET Driver → BLDC Pump │ Hall sensor feedback │ Closed-loop flow control Flow equation feedback: 1.5 SENSOR INTERFACE SCHEMATIC pH → high impedance buffer op-amp (LMP7721) ORP → differential ADC input UV fluorescence → photodiode + TIA amplifier Turbidity → IR scatter sensor 2. EMBEDDED FIRMWARE (ESP32 SWARM CONTROLLER) 2.1 System Architecture Modules: Sensor acquisition loop PFAS estimation model Actuator control (pump, UV, HV reactor) Mesh communication (LoRa/WiFi) Fail-safe watchdog ⚙️ 2.2 CORE CONTROL LOOP (C++-STYLE) C++ void loop() {

// 1. Acquire sensor state State S = readSensors();

// 2. Estimate contamination float pfas_est = model.predict( S.turbidity, S.orp, S.conductivity, S.fluorescence );

// 3. Control law float reactor_power = K1 * pfas_est + K2 * derivative(pfas_est) + K3 * S.flow_rate;

// 4. Actuation setPumpPWM(S.flow_target); setUVIntensity(pfas_est); setHVReactorVoltage(reactor_power);

// 5. Swarm communication broadcastNodeState(S, pfas_est);

delay(50); // 20 Hz control loop } 2.3 SWARM MESSAGE PACKET JSON { "node_id": "Haw-Node-14", "pfas_est": 12.4, "flow": 1.8, "risk": 0.87, "battery": 78, "timestamp": 1710000000 } 2.4 FAILSAFE LOGIC If: sensor drift detected HV instability network disconnect Then: C++ enterSafeMode() { setHVReactorVoltage(0); setPumpPWM(minimum_flow); switchToLocalFilteringOnly(); } ️ 3. GIS + REAL-TIME PFAS DASHBOARD SYSTEM 3.1 SYSTEM NAME: “RIVERGLASS DASH v2” 3.2 FULL STACK ARCHITECTURE

[IoT Nodes] ↓ [MQTT / LoRa Gateway] ↓ [Stream Processor (Kafka / Redis Streams)] ↓ [Physics Digital Twin Engine] ↓ [API Layer (FastAPI / Node.js)] ↓ [GIS Frontend (Mapbox / Cesium)] 3.3 DATA LAYERS ON MAP Layer Stack: PFAS concentration heatmap 1,4-dioxane plume modeling Flow velocity vectors Active purification pod positions Industrial discharge sources Risk index overlay 3.4 HEATMAP FUNCTION Where: � = distance from sensor node � = measured contamination 3.5 DIGITAL TWIN UPDATE ENGINE Python def update_river_state(sensor_batch):

physics = solve_advection_diffusion()

ml_correction = neural_net.predict(sensor_batch)

fused_state = physics + ml_correction

return fused_state

️ 3.6 REAL-TIME VISUALIZATION FEATURES Map UI layers: PFAS hotspots (dynamic gradient) clean water zones ⚫ contamination plumes (animated flow) active remediation pods ⚡ alerts (threshold breaches) 3.7 CONTROL PANEL Operators can adjust: reactor intensity scaling pod swarm density UV/ozone ratios emergency shutdown zones 3.8 CLOSED LOOP SYSTEM

Sensors → Stream Engine → Digital Twin → Optimization → Pod Commands → River Response → Sensors ⚡ FINAL INTEGRATED SYSTEM STATE You now have a complete environmental cyber-physical organism: Hardware layer → electrochemical + photonic + adsorption purification pods Network layer → autonomous IoT river nervous system Intelligence layer → physics-informed AI digital twin ️ Visualization layer → GIS real-time contamination control dashboard If you want next escalation paths I can now push this into:

1. Manufacturing-ready PCB Gerber-style layout (component placement + traces)
2. Full ESP32 firmware repository structure (GitHub-ready)
3. Live web dashboard UI mock (Mapbox/Cesium interface)
4. Simulation video-style animation of PFAS plume + pod swarm behavior Just specify the next level of resolution.