vi UK Focus


Simple, precise and dependable fenceline VOC monitoring technology to be showcased at AQE


Emissions from industry can negatively affect ambient air quality, and are a major contributor to poor air quality in many regions. Pollutant sources include both stack emissions and fugitive emissions during storage, processing and transport. Because of this, many countries have established fenceline regulations on levels of key pollutants, including VOCs, to protect workers and neighbouring communities.


Passive sampling, followed by offl ine analysis methodology, suffers from slow feedback, potential losses to sampling devices, and no meteorological data for source appointment. Fast VOC measurement, offered by online techniques, is increasingly requested by regulators to enable better science-based decisions. Common deployments include 1) setting up a network of stationary monitoring stations based on the prevailing wind directions, 2) running a single instrument behind multi-point sampling valves, 3) mapping VOC distributions on a routine basis along fenceline and within facilities using a mobile platform.


The TOFWERK real-time VOC analyser – Vocus CI-TOF offers a turnkey solution for online VOCs and odorous compounds analysis, without any sample preparation or GC separation, leading to a real-time and fast data output. These features of Vocus CI-TOF make in situ fenceline monitoring very effi cient and simple. For benzene, it can reach LOD as low as 10 pptv per second, which enables fast and sensitive measurements of rapid changes in benzene levels at refi nery fencelines. The system has a proven record of deployment with mobile laboratory to map VOC concentrations in industrial areas and assist the regulatory bodies to trace emission source and address odor complaints in residential neighbourhoods. The real- time data can help regulatory agencies improve inventories of air pollution emissions, as well as enforcement of air quality standards. TOFWERK will showcase the Vocus CI-TOF at the upcoming AQE (Air Quality and Emissions) Exhibition and conference taking place in Brimingham this coming October 9th and 10th .


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N96 — Diaphragm Vacuum Pump and Compressor High Performance


KNF showcases a new powerful pump for a wide range of applications. The N96 is suited for gas sampling analysis and all other processes requiring reliable and precise transfer of gaseous samples. Compact and high performing, it can transfer even aggressive & corrosive media. Its robust design means it can be used with a broad spectrum of media at temperatures up to 70 degrees Celsius.


Available with either an EPDM membrane or a PTFE coated membrane, the N96 is chemically resistant and highly tolerant of vapour and condensate, making the N96 perfect for use in instrumental analysis. In this fi eld, the N96 can perform the typical tasks of gentle, precise preparation and transfer of samples for analysis as well as safe aspiration of liquid waste mixtures.


chemical


With its highly effi cient brushless DC motor and rotational speed control, this diaphragm pump can dynamically meet the requirements of complex operating profi les. The N96 low heat emission makes it suitable for use in ambient temperatures of up to 50 degrees Celsius. The pump can effortlessly start up against load, has a fl ow rate up to 8.5 l/min and can produce 2.5 barg pressure and vacuum down to 100 mbar abs, whilst running continuously.


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SUEZ has announced a new contract with Anglian Water to supply satellite surveillance of its water recycling network. The agreement covers the entire company area and follows a successful trial in 2023. The focus initially will be on identifying any potential exfi ltration points near a watercourse with the aim of expanding the scope to the entire water recycling network. This project will survey the entire network four times in the coming 12 months.


This partnership builds on the successful collaboration between SUEZ and its technology partner, ASTERRA, who have provided Anglian Water with satellite leak detection services for several years on the drinking water side: an innovative approach which has proven to be successful, with recently published fi gures showing a saving of 10 megalitres per day, the equivalent of 4 Olympic-sized swimming pools every day.


The importance of effective wastewater network surveillance cannot be overstated. Ageing sewer infrastructures are increasingly prone to infi ltration and exfi ltration issues, and the impacts of climate change have accelerated network deterioration. This leads to more surface water overfl ows and sewer fl ooding, particularly in older urban areas where Combined Sewer Overfl ows (CSOs) can become overwhelmed during periods of heavy rainfall.


Satellite surveillance offers a fresh, non- invasive approach to the problem of fi nding wastewater leakage. The same technology that helped discover water on Mars is now being used to identify sewer seepage on Earth. This effi cient and cost-effective methodology provides multiple benefi ts, including a deeper understanding of pipe conditions, effi cient maintenance work, effective resource allocation, and seamless integration into existing management systems.


The benefi ts of satellite surveillance in wastewater management are numerous as it prioritises pipes for replacement and rehabilitation, helps to prevent pollution of sensitive habitats and neighbourhoods, reduces public health risks associated with sewer overfl ows, minimises the negative impact on bathing waters, and supports regulatory compliance.


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Anglian Water’s wastewater network to undergo extensive satellite surveillance


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