What does WANDI Korea do?

WANDI Korea is the official Korean distributor of WANDI environmental and gas measurement instruments, operated by RS Korea Co., Ltd. We provide sales, calibration, repair, installation, and technical support for portable and fixed multi-gas detectors and air quality monitoring systems, exporting to more than 20 countries with over 5,000 delivery records.

What products do you offer?

We supply portable multi-gas detectors (EDW100, EDW500, Gas Tiger series), fixed multi-gas detectors (FIX800, FIX900, FIX-AP), air quality monitoring systems (FIX5000), and gas leak detectors (GLD series) for industrial safety and environmental measurement.

Which gases can be measured?

Our instruments measure oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), combustible gases (EX), carbon dioxide (CO2), ammonia (NH3), and volatile organic compounds (VOC), among other hazardous and combustible gases found on industrial sites.

Do you provide calibration and repair services?

Yes. Beyond product sales, WANDI Korea provides in-house and national certified calibration, repair, installation, and ongoing technical support. Calibration and repair requests can be submitted through the quote/calibration/repair pages on our website.

How can I get a quote for a gas detector?

You can request a quote directly through the quote page on our website or through a nearby dealer. Let us know your application and target gases, and we will recommend a suitable model.

In which fields are the products used?

They are used across a wide range of industrial sites including laboratories, factories and plants, hospitals, military facilities, livestock and wastewater treatment, and construction sites for worker safety and environmental monitoring.

VPE Korea — Hazardous Gas Detector Installation at Aeration Tank, Anaerobic Digester, and Sludge Treatment Process

Aeration Tank, Anaerobic Digester, and Sludge Treatment Process — Hazardous Gas Detector Installation

This case from VPE Korea documents a gas detector installation across critical wastewater treatment process areas in Gyeonggi-do. The aeration tank is a key component in wastewater treatment, responsible for purifying sewage — but decomposing wastewater carries significant potential for generating methane, hydrogen sulfide, ammonia, and other hazardous gases, leading to its classification as a confined space requiring continuous gas concentration monitoring with detectors and alarm systems.

Installation Specifications

Item	Details
Detector	Fixed multi-gas monitor
Sensor configuration	EX (combustible) + CO (carbon monoxide) + O₂ (oxygen) + H₂S (hydrogen sulfide)
Installation environment	Aeration tank, anaerobic digester, and sludge treatment process areas
Location	Gyeonggi-do

Hazard Characteristics by Process Stage

Aeration tank: Core purification process for decomposing organic matter in wastewater — anaerobic conditions can generate methane, H₂S, and ammonia despite the aerobic treatment process
Anaerobic digester: Specifically designed to operate under oxygen-free conditions for organic matter breakdown — generates significant methane and H₂S as primary byproducts
Sludge treatment process: Concentrated organic matter handling stage with elevated risk of multiple hazardous gas generation
All three process areas are classified as confined spaces under Korea's Occupational Safety and Health Standards, requiring continuous gas monitoring

Why Continuous Monitoring Is Essential

Gas detectors and alarm systems must be installed to enable continuous gas concentration monitoring across these process areas
The combination of decomposing wastewater and limited ventilation creates persistent hazardous gas generation potential
Fixed detection with alarm capability ensures workers are alerted to dangerous conditions before entry or during ongoing work

Frequently Asked Questions

Why is the aeration tank classified as a confined space despite being an aerobic process?

While the aeration process itself introduces oxygen, localized anaerobic pockets within the wastewater and sludge can still generate methane, H₂S, and ammonia. Combined with limited ventilation in the tank structure, this creates confined space conditions requiring continuous monitoring.

What makes the anaerobic digester particularly hazardous?

Anaerobic digesters are specifically designed to exclude oxygen for organic matter breakdown, making them a primary generation point for methane and hydrogen sulfide — both significant safety hazards requiring dedicated gas monitoring.

Why does sludge treatment require gas monitoring alongside the tanks?

Sludge represents concentrated organic matter from the treatment process, carrying elevated risk of generating multiple hazardous gases simultaneously as it continues to decompose during handling and processing.

How can gas detector installation be arranged for similar wastewater treatment processes?

VPE Korea provides installation services across the full range of wastewater treatment process areas, with site assessment to determine optimal detector placement at each specific process stage.

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