WT2® Compact Air Quality Monitoring Station – AQMS

WT2® Watchtower

Compact Air Quality Monitoring System

Air Quality Monitoring System (AQMS) for VOCs, Odours and Air pollutants

Autonomous & Wireless, WT2® Watchtower AQMS is designed for air quality monitoring, environmental impact assessment and pollution control applications in urban and industrial areas. WT2® Watchtower AQMS consists in a network of field-based Gas & Odours analysers with high precision sensor for low ppb gas concentrations in ambient air (H2S, RSH, NO2, NH3, SO2 …) as well as VOC, odours, noise and particles detection correlated with Dynamic olfactometry with high accuracy in ppm, ppb and o.u./m3.

WT2® Watchtower AQMS complies with

• Odour unit (EN 13725, ASTM E679)

• USEPA ( 40 CFR Part 53)

• EU ( 2008 /50/EC)

WT2® Watchtower AQMS is a standalone, sensor based, multiparameter air quality station designed for the automation of pollution and nuisances control processes. WT2® Watchtower AQMS offers the key functions and tools to meet industrial project requirements and regulatory needs. For fast and accurate assessment of the air quality in industrial or urban areas, WT1® fenceline monitoring system is equipped with up to 6 Electrochemical cells among 20 pollutants and odour precursor gases such as H2S NH3, RSH, NO2, NO, SO2, O3 … Additionally the WT1 can be fitted with 4 MOS sensors for odours, as well as the optional PID (VOC monitoring).

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WT2® Exclusive features

WT2® Dust Monitor

Particle size monitoring can be added as an optional modules from 0,3 to 17 µm. Correlation with reference instruments can be provided via automatic on line sampling and dynamic olfactometry or field olfactometry and a simple correlation model building. The WT2® AQMS cutting edge data processing enables instant assessment of environmental impact correlated with realtime air pollution, noise level and odour monitoring, concentration alarms, instruments fault from PC, Tablets, and phone.

WT2® AQMS main specifications

• 4 Micro sensors for fence line monitoring plus H2S and NH3 • Up to 6 Detected gases (with use of optional sensors) plus PID for VOC

• H2S, Mercaptans, Amines, NH2, SO2, CO2, CO, CL, C2HO4, H, HCl, HCN, NH3, O3, NO2, PH3, H2S, O2, SO2, CH4, NO, and VOC

• Particle size (PM 1, PM 2.5, PM 10)

• 48 h builtin data logger in case of loss of communication

• Wireless communication via LORA (1 to 2 km) or GPRS

• Software access anywhere via secured servers

• Installation time 2 to 4 H per instrument

• Weather correlated AQM data with Temperature, Relative Humidity, wind speed and direction

• Additional GPS position

• Operating temperature range with optional HVA-30 to 60°C

• 220 V / 110 V – Main or solar powered unit

Continuous and simultaneous monitoring of Gas & VOC, particles and noise 24/7	State of the art Fence Line monitoring solution
Predict odour nuisance and enable accurate source identification	Standalone instrument ideally suited to automated pollution control processes
Real Time assessment of environmental impact with accurate emissions measurements	Receive real-time alerts, full remote control capabilities

WT2® AQMS sensors Network

Modular and scalable solutions for Air Quality Monitoring

Modular and scalable, the WT2® Watchtower AQMS network is sized to your needs. Standalone analyser or sensor network results are available source by source, site by site or on a regional scale. For cities, large remediation sites, industrial areas, the WT2® Watchtower AQMS instrument network provides real-time accurate air quality data for efficient management of chemicals and olfactory pollution. Results can be accessed from the RUBIX Soft SAS secured website, using your web browser to access safely your data, 24/7, anywhere in the world.

WT2® Watchtower AQMS uses high-precision sensors for pervasive monitoring of pollution and nuisances. The concentration level (ppm or ppb) and sensor combination are defined based on the application requirements. The WT2® Watchtower AQMS can be equipped with up to 6 gas proprietary electrochemical sensors including but not limited to H2S, NH3, mercaptans, SO2, CO, Ethylene Oxide, O3, Methane, Cl2 … in addition to the VOC (PID) and Particles PM measuring blocks.

Cloud SAS Based Hosting

The central monitoring station is hosted on a secure cloud based server allowing remote access via any internet based computer. The access is restricted and the data is encrypted for maximum security. Users are given a password and user name which will define their permission level. Operator access can simply view the results and create reports while administrator access can reconfigure the system and set all parameters

Graphic Emission Representation and Reporting

The monitoring system continuously provides real-time readings of all sensors in the grid plus has the capability to show data for any defined instance in time. Furthermore reports such as specified period mean, high, low and variance for each sensor can be shown. Other reporting options such as sensor ranking in highest average reading and highest variations

Off line dispersion plume
Dynamic 3D mapping of dispersion plumes

Calculations of concentrations in the vicinity of the site(s)

Automated dispersion reports
Cutting edge data acquisition and processing
Configurable alert threshold

Notification by warning siren, flashing light, SMS, email, etc.

Access from Phone, tablet, PC

Cloud data storage
Real Time monitoring, instant impact assessment and source identification
Configurable alert threshold

Process control ( Bio filters, scrubbers, ventilation …)

Pattern matching software ( PCA, LDA, PLS)
Increased pollution control capabilities
Automatic activation & deactivation based on emissions levels

Amount of additives adjusted to the odour concentration
Modular and scalable Instrument netwrok
WT2® AQMS Network

Suitable for a wide range of emissions sources in urban and industrial areas with dedicated sampling system for concentrated pollution level.
Weather correlated AQM data
Real Time measurement of local weather parameter RH, T°, WIND SPEED, WIND DIRECTION, RAIN, PYRANOMETER.

Typical Applications

Sulphur compounds, Volatile Organic Compounds are toxic and commonly targeted as odour precursors. Unlike the analysis of permanent gases, the analysis of sulphur gases is not easy because of their highly reactive nature. They tend to react not only with the materials they come in contact with but also with each other. In addition, volatile sulfur compounds are highly reactive and have absorptive, adsorptive, and metal-catalytic properties.

The WT2® Watchtower AQMS is typically designed to measure continuously the concentration of 6 gases amongst an extensive list of air pollutants and odour precursors including but not limited to H2S, Mercaptans, Amines, NH2, SO2, CO2, CO, CL, C2HO4, H, HCl, HCN, NH3, O3, NO2, PH3, H2S, O2, SO2, CH4, NO, VOC, PM particles from 0,3 to 17 um.

WT2® fulfills the requirements of site operators and environmental authorities by providing an easily expendable fenceline monitoring solution for sites where odour management is critical such as wastewater treatment plants, paper mill, pharmaceutical facilities, refineries.

WT2® Watchtower AQMS

• Sources identification with pattern recognition build in software and automatic sampling

• Automatic Plug In installation and Self Configuration ( GPS position and central controller for easy reconfiguration and adaptation)

• Multi Gas source monitoring and identification • Olfactory and chemical monitoring tailored to your industrial sector

• Improved communication with residents and authorities

• Better understanding of the odour problem enabling adjustment of on-site operations

• Optimized operation of odor control facilities leading to drastic cost reduction

• Efficiency of air treatment processes continuously monitored

• Reliable tool for decision making within a continuous improvement approach (iso 14001, iso 9001)

Landfills, Wastewater Treatment Plants

“Landfilling” is the main method for disposal of municipal and household solid wastes or refuses in Australia. Although maintained in an oxygen-free environment and relatively dry conditions, landfill waste produces significant amounts of odorific landfill gas mainly Sulphur gases. The WT2® Watchtower AQMS enables low and sub ppb levels monitoring of odour precursors S compounds from solid waste landfills, wastewater treatment and other waste recycling facilities.

Natural Gas Plant and Refineries

Petroleum gases and natural gas are well-established contributors to the world’s energy needs. Specialised sulfur compounds are produced for odorization of natural gas. The stockage, transport and processing of sulphur compounds leads to the need for scrutinised monitoring system to ensure the safety of the workers as well as accurate automated plant operations. In refineries the emissions from desulfurization processes are controlled accurately to prevent nuisances in case of degraded plant operations. The WT2® Watchtower AQMS provides plant operators with accurate and reliable sub ppb level continuous monitoring at site fencelines.

Pulp and Paper Industry

Pulp and paper mills occasionally emit certain gases into the atmosphere which are objectionable to the surrounding community. A group of these compounds referred to as total reduced sulphur (TRS) consisting of hydrogen sulphide (H2S), methyl mercaptan (CH3SH), dimethyl sulphide [(CH3)2S] and dimethyl disulphide [(CH3)2S2] are the principal culprits that are emitted particularly by the kraft pulping process. Government regulatory bodies issue guidelines to the industry banning their emissions above certain concentration levels.

The WT2® Watchtower AQMS analyses accurately, concentrations of these foul gases at source and in the atmosphere when dispersed from the stack.

RUBIX

A reference in air quality, safety & wellness.

WT2® Watchtower

Air Quality Monitoring System (AQMS) for VOCs, Odours and Air pollutants

WT2® Exclusive features

WT2® Dust Monitor

WT2® AQMS main specifications

WT2® AQMS sensors Network

Cloud SAS Based Hosting

Graphic Emission Representation and Reporting

Off line dispersion plume

Cutting edge data acquisition and processing

Real Time monitoring, instant impact assessment and source identification

Increased pollution control capabilities

Modular and scalable Instrument netwrok

Weather correlated AQM data

Typical Applications

Landfills, Wastewater Treatment Plants

Natural Gas Plant and Refineries

Pulp and Paper Industry

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