Combining Reagent-Free UV COD Sensors, 4-in-1 Nitrogen Probes, and Explosion-Proof Gas Linkage to Reduce Environmental Risk and Cut Aeration Energy Costs by 30%
SHENZHEN, China — October 29, 2026 — As environmental protection authorities across Southeast Asia, India, the Middle East, and Latin America mandate automated 24/7 outfall reporting and step up non-compliance fines, industrial manufacturing facilities and municipal water authorities face an escalating double challenge: ensuring stringent effluent compliance while safeguarding field operators from fatal gas asphyxiation in confined sewer works.
To resolve these twin operational bottlenecks, Honde Technology Co., Ltd. (HONDE) today officially introduced its commercial turnkey package: the All-in-One Industrial Wastewater & Confined Space Safety Monitoring System. Engineered specifically for engineering, procurement, and construction (EPC) contractors, system integrators (SIs), and plant operators in textile dyeing, electroplating, food processing, and municipal wastewater treatment plants (WWTPs), the unified solution fuses chemical-free optical water quality instrumentation with automated explosion-proof toxic gas interlocks on a single digital network.
1.Eliminating Reagent Logistics & Cutting Aeration Electricity by 30%
For industrial facilities operating in regional industrial corridors across Vietnam, Indonesia, Mexico, and India, conventional wet-chemical digestion analyzers have become an operational liability. Tightened homeland security regulations on concentrated sulfuric acid, potassium dichromate, and mercury salts create chronic procurement delays, while hazardous chemical waste disposal drives operating budgets upward.
HONDE addresses this recurring friction through an entirely optical, reagent-free sensing architecture:
- HD-COD-03 UV Absorption COD Sensor: Operates on direct 254 nm ultraviolet spectral absorption, delivering continuous, real-time chemical oxygen demand readings 100% free of chemical reagents. It eliminates recurring chemical replenishment costs and bypasses hazardous acid transport restrictions in remote industrial zones.
- RD-AN3TNP-01 4-in-1 Nitrogen & pH Sensor: Integrates four ion-selective electrodes (ISE)—Ammonia Nitrogen (NH3-N), Nitrate Nitrogen (NO3-N), Total Nitrogen (TN), and
pH—into a single immersion probe. One probe does the work of three discrete analyzers, slashing instrument capex, cabinet footprint, and channel cabling by over 40%.
- RD-SSWT-B-02 Self-Cleaning TSS / Turbidity Meter: Features a 304/316L stainless steel optical body paired with an automated motorized wiper, preventing suspended solids, oil films, and algal fouling at the final clarifier weir.
In the biological aeration basin—historically responsible for 50% to 60% of an entire wastewater plant’s total electrical power consumption—sensor fouling has long plagued plant engineers. Conventional galvanic membrane probes drift as activated sludge cakes the sensing cap, forcing blowers to run continuously at maximum speed to avoid biological die-off.
HONDE’s HD-WDOSWSS-01 Optical Dissolved Oxygen (DO) Sensor incorporates an automated mechanical cleaning wiper that sweeps the luminescent sensing cap at user-defined intervals. By maintaining true, drift-free optical DO measurements in heavy mixed liquor suspended solids (MLSS), the sensor links directly to blower variable frequency drives (VFDs), dynamically adjusting airflow and reducing aeration electrical consumption by up to 30%.
2.Fortifying Worker Safety: Automated Explosion-Proof Gas Interlocks & Confined Space Screening
Beyond the outfall weir, sewage treatment operations conceal severe atmospheric hazards. Sludge dewatering rooms, enclosed pump wet-wells, septic holding basins, and deep collection manholes generate lethal concentrations of hydrogen sulfide (H2S) and explosive methane (CH4) through anaerobic decomposition.
To protect personnel and plant assets, HONDE embeds a dual-layer atmospheric defense protocol:
- RD-EPGD-01 Cast-Aluminum Explosion-Proof Gas Detector: Certified for hazardous industrial locations, this fixed-mount monitor tracks ambient
H2S toxicity andCH4 lower explosive limits (LEL) around the clock. Built directly into the cast-aluminum enclosure is an automated dry-contact relay interlock. The instant gas concentrations breach pre-set OSHA/NIOSH occupational exposure thresholds, the relay trips in milliseconds, turning on explosion-proof exhaust ventilation fans or opening emergency fresh-air louvers before explosive mixtures reach ignition temperatures or toxic gases overpower technicians.
- RD-HD-400 Portable 4-in-1 Pump-Suction Gas Detector: Engineered to establish an ironclad “Test-Before-Entry” protocol for confined spaces. Featuring an internal high-flow sampling pump, telescopic probe wand, and audible-visual-vibrating multi-alarms, maintenance crews draw atmospheric samples from the bottom of deep lift stations, manholes, and sludge digestion tanks before removing covers or descending ladders.
3.Technical Specifications: All-in-One Monitoring System Architecture
| Instrumentation Node | Primary Parameter | Measurement Principle | Key Engineering Differentiator |
|---|---|---|---|
| HD-COD-03 | Chemical Oxygen Demand (COD) | UV 254 nm dual-wavelength absorption | 100% Reagent-free, zero hazardous waste, instantaneous optical response |
| RD-AN3TNP-01 | NH3-N, NO3-N, Total Nitrogen, pH | Multi-channel Ion-Selective Electrode (ISE) | Single-probe 4-in-1 architecture replaces 3 discrete cabinets; cuts capex by 40% |
| HD-WDOSWSS-01 | Dissolved Oxygen (DO), Temperature | Optical luminescence fluorescence phase-shift | Integrated mechanical auto-cleaning wiper; cuts blower power by 30% |
| RD-SSWT-B-02 | Total Suspended Solids (TSS) / Turbidity | 90° / 140° Infrared light scattering | Stainless steel housing, motorized wiper prevents biofouling at effluent weirs |
| RD-EPGD-01 | Toxic (H2S) & Combustible (CH4) Gas | Electrochemical & Catalytic / NDIR | Cast-aluminum Ex-proof casing; internal dry-contact relay triggers exhaust fans |
| RD-HD-400 | O2, CO, H2S, CH4 (LEL) | Multi-sensor active aspiration | Internal micro-suction pump for pre-entry confined space safety checks |
| Telemetry Node | Unified RS485 Modbus-RTU to 4G IoT Gateway | Industrial cellular modem / LoRaWAN | Automated cloud ingestion, remote calibration, Excel compliance audit export |
4.Executive Insight: Unifying Environmental Compliance and Life Safety
“For years, overseas EPC contractors and wastewater plant operators have been forced to juggle disjointed instrumentation from four or five separate vendors—buying wet-chemical cabinets from Europe, gas detectors from local distributors, and telemetry RTUs from third parties,” stated Marvin Li, Chief Technical Director at Honde Technology.
“When an outfall exceeds discharge limits or a lift station accumulates toxic gas, these fragmented systems point fingers at each other. By standardizing our optical water probes and explosion-proof gas detectors on an identical RS485 Modbus backbone and linking them through pre-configured 4G cloud telemetry, we give plant managers single-pane-of-glass accountability. Operators slash their maintenance labor, trim thousands of dollars from monthly electricity bills through automated aeration trimming, and ensure every technician returns home safely at the end of the shift.”
5.Global Availability, Turnkey Solutions, and Engineering Evaluation
The All-in-One Industrial Wastewater & Confined Space Safety Monitoring System is available immediately for worldwide commercial shipment, with standard hardware packages dispatching within 3 to 5 business days. HONDE provides complete OEM, ODM, and white-label engineering customization for international system integrators, including custom sensor ranges, private-label firmware branding, and localized cloud server deployment.
To support plant retrofits and regional framework tenders, HONDE provides three standardized deployment configurations:
- Handmeter, Data logger with screen: Portable field terminal with high-contrast display and internal storage for rapid on-site sensor calibration, verification rounds, and USB Excel data logging.
- GPRS/4G/WIFI/LORA/LORAWAN wireless module supports MQTT Json format: Industrial IoT telemetry nodes transmitting standardized, open MQTT JSON payloads directly into municipal environmental portals, central DCS, or third-party SCADA architectures.
- Cloud server and software with alram relay system support to see the real time data, history data: Centralized web dashboard and mobile app delivering 24/7 real-time hydrographs, regulatory compliance reporting, and physical alarm relay triggers for emergency shut-off valves and automated blower control.
Municipal water authorities, industrial park operators, and environmental engineering contractors can request technical datasheets, CAD dimension drawings, or evaluation units by contacting HONDE’s application engineering group directly.
About Honde Technology Co., Ltd.
Founded in 2011, Honde Technology Co., Ltd. is a TÜV Rheinland-verified manufacturer specializing in industrial IoT environmental instrumentation, smart water quality monitoring systems, and hazardous area safety detectors. Operating from modern manufacturing facilities with strict ISO 9001 and CE/RoHS compliance, HONDE’s measurement systems are deployed across more than 70 countries, protecting critical water supplies, municipal wastewater networks, and industrial manufacturing complexes worldwide.
Media & Commercial Inquiries: Honde Technology Co., LTD.
WhatsApp: +86-15210548582
Email: info@hondetech.com
Company Website: www.hondetechco.com
Post time: Oct-29-2026
