Expert in Water Quality Measurement and Water Treatment Project Since 2007
Algae Online Analyzer by BOQU
Product Overview
- The Algae Online Analyzer by BOQU (model TNG-3020 / marketed as an online total nitrogen analyzer) is an automated, in-situ instrument for continuous monitoring of total nitrogen in water.
- It uses resorcinol spectrophotometry and requires no sample pretreatment—an external sample riser can be inserted directly into the water.
- Measurement ranges are selectable (0.0–10 mg/L, 0.5–100 mg/L, or 5–500 mg/L) with digital touchscreen operation and standard industrial outputs (4–20 mA, RS232, RS485).
Product Features
- Precise chemistry and optics: resorcinol colorimetric method with accurate photoelectric metering; dosing as low as 1.5 mL per reagent dose.
- Robust fluid handling: negative-pressure peristaltic suction with air buffer to protect pump tubing, imported PTFE transparent reagent tubing (≥1.5 mm ID) to reduce clogging.
- Sealed high-temperature, high-pressure digestion accelerates reactions and prevents loss/corrosion from volatile gases.
- Flexible operation: adjustable digestion time (5–120 min), minimum measurement cycle ~50 min, sampling interval and calibration period configurable, monthly routine maintenance (~30 min).
- Data reliability: saves data on alarms and power loss; automatic purge and resume after reset/power cycle.
Product Value
- Enables real-time, continuous monitoring of nitrogen to support regulatory compliance, pollution control, and early warning for algal-risk or eutrophication events.
- Reduces operating costs through low reagent consumption and reduced maintenance downtime.
- Improves decision-making and reporting with automated data output and reliable measurements across a wide concentration range.
- Minimizes manual sampling and lab turnaround time, increasing operational efficiency for water treatment and environmental monitoring teams.
Product Advantages
- Independently developed device (BOQU IP) with industrial-grade design optimized for lower failure rates and higher performance than many comparable units.
- High accuracy and repeatability (±0.05 mg/L for low-level readings; ≤±5% repeatability) and stable 24-hour performance.
- Mechanisms to reduce component wear and chemical corrosion (photoelectric dosing, negative-pressure pump design, sealed digestion).
- Flexible integration: standard analogue and digital outputs, touchscreen interface, configurable calibration and sampling schedules.
- Compact industrial footprint with automated safety/purge features to maintain continuity after alarms or power interruptions.
Application Scenarios
- Online automatic monitoring at wastewater discharge points and industrial effluent streams to ensure compliance with TN limits.
- Surface water and watershed monitoring for nutrient loading, eutrophication risk assessment, and algal bloom early warning.
- Municipal and industrial wastewater treatment plants for process control and compliance reporting.
- Environmental monitoring stations, water resource management projects, and any facility requiring continuous total nitrogen surveillance.
