68 Water / Wastewater High precision analyser proving to be an ideal tool for algae research
As algae-based research rises in prominence for its potential in renewable energy production and climate change mitigation, the need for high-precision analytical equipment is paramount. Hiden Analytical has announced that the Hiden HPR-40 DSA (Dissolved Species Analyser) is proving to be a perfect research tool in the rapidly evolving algae research landscape.
The HPR-40 DSA is designed to provide continuous, real-time monitoring of dissolved gases within aquatic environments, a fundamental aspect of advancing our understanding of algal metabolism, including critical processes such as photosynthesis and respiration.
One of the distinct advantages of the HPR-40 DSA system is its ability to monitor the delicate balance between oxygen and carbon dioxide during the photosynthetic process of algae. With real-time tracking, the HPR-40 DSA yields invaluable insights into the photosynthetic rates and patterns of these vital aquatic organisms.
Beyond simply understanding algae metabolism, the HPR-40 DSA’s capabilities extend to tracking changes in the health and productivity of algae populations. Early detection of potential issues, such as a decrease in oxygen production, is made possible by the Hiden system, signalling any health compromises within the algae populations. In addition, the HPR-40 DSA plays a crucial role in establishing optimal growth conditions for algae. By tracking dissolved gas concentrations continuously, researchers are empowered to adjust environmental parameters, promoting optimal growth and productivity for algae.
The potential of algae as a renewable biofuel source adds to the signifi cance of the HPR-40 DSA; its sensitivity and rapid response time make it the ideal tool for optimising the hydrogen gas production process in certain algae strains.
In ecological and climate change research, the HPR-40 DSA contributes invaluable insights. Algal population changes often refl ect alterations in dissolved gas concentrations, thereby providing key data on ecological dynamics. Additionally, as algae play a signifi cant role in global carbon cycles, the HPR-40 DSA is indispensable for accurate climate change modelling.
Equipped with state-of-the-art membrane sampling technology, the HPR-40 DSA offers comprehensive coverage of algae’s metabolic processes. Whether you are investigating renewable energy sources, ecological impacts, or climate change scenarios, the Hiden HPR-40 DSA delivers crucial data for ground-breaking algae research.
Robust miniature pressure controllers
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Bronkhorst’s IQ+FLOW series of miniature mass fl ow and pressure meters and controllers is widely used by equipment manufacturers in the analytical market. Due to the application of chip sensors and mini-valves the footprint of single-channel instruments is only 20 x 40 mm. This is a great advantage for manufacturers of desktop equipment, who are always looking for optimal space effi ciency.
The IQ+FLOW product line has now been extended with pressure instruments with media-isolated pressure sensors. The sensor chip is protected by a stainless-steel diaphragm and oil-fi lled compartment. With this new option, the instruments can handle a much wider variety of media than before, including thin gases such as hydrogen and helium. According to the requirements of the analytical lab sector, the instruments have low-outgassing and clean-wetted parts.
IQ+ FLOW series are available in three confi gurations: single- channel versions for either inline or top mount integration and multi-channel versions. Compact 2- or 3-channel instruments can be confi gured on customer specifi cation to measure or control the mass fl ow and/or the upstream or downstream pressure in a system.
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Pyroscience recently launched the APHOx-S-O2, a compact underwater sensor for dissolved oxygen measurement in shallow water. The device uses a robust optical principle based on an oxygen-sensitive luminescent dye, and is factory calibrated for temperature-compensated oxygen measurements.
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With its innovative REDFLASH technology, the APHOx-S-O2 impresses with its high precision, high reliability, low cross-sensitivity, and fast response times. The REDFLASH sensor materials are activated with red light and show an analyte-dependent luminescence in the near-infrared (NIR) range, which signifi cantly reduces interference caused by auto-fl uorescent samples.
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In addition to the digital interface and protocol, a broadcast mode can be confi gured where the device measures in a pre-defi ned interval and provides real-time measurement results at the analogue outputs, without requiring digital communication.
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IET ANNUAL BUYERS’ GUIDE 2023/24 email: For More Info, email:
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Designed specifi cally for measurements in aquacultures and surface waters, the APHOx-S-O2 features a corrosion and biofouling-resistant copper alloy housing, which enables operation at up to 50 meters depth. The meter also provides an RS485 interface and 4 analogue outputs (2x 4-20 mA. 2x 0-5V) for easy integration into various control systems.
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60725pr@reply-direct.com Breakthrough technology revolutionises
metal recovery from mine water Mining operations often leave behind a legacy of environmental challenges, particularly in relation to water resources. To address this issue and extract valuable materials from mine waters, Finnish technology providers Weeefi ner and Sensmet have joined forces. Supported by funding from Rio Tinto Group’s sustainable water treatment challenge program, the companies aim to develop an innovative solution that selectively recovers metals from mining-impacted waters.
Traditional water treatment methods employed at mining sites can be expensive and vary in their effi ciency. Weeefi ner and Sensmet are developing an Intelligent Recovery Unit (IRU) that promises not only to enhance process effi ciency but also to selectively recover critical minerals and rare earth metals. Weeefi ner will provide the metal recovery and water treatment solution, while Sensmet will offer online measurement technology for continuous process control.
Weeefi ner, recognising the benefi ts of a circular economy, has focused on innovative water treatment solutions that facilitate the recovery of dissolved materials. Their 4D Scavenger® technology has the potential to revolutionise water treatment across various industries. In the IRU project, Weeefi ner aims to customise this technology to meet the specifi c needs of the mining industry.
Mikko Hänninen, CEO of Weeefi ner, highlights the limitations of conventional decontamination methods, which often rely on precipitation and chemical additives, leading to a heavy carbon footprint and the generation of sludge requiring disposal. Weeefi ner’s 4D Scavenger technology, on the other hand, selectively targets and extracts dissolved metals, reducing the burden of downstream water treatment. By utilising the IRU, mining sites can produce sustainable raw materials while meeting regulatory requirements.
To optimise the IRU’s performance, continuous monitoring and control are essential. Traditional laboratory analysis is impractical at remote sites due to cost and delays. Sensmet’s µDOES®
analyser fi lls this gap by providing real-time, simultaneous quantifi cation of
dissolved metal concentrations, enabling automated process optimization. With performance comparable to laboratory ICP-OES but designed for continuous and fully automated industrial monitoring, µDOES® before and after 4D Scavenger®
enhances the IRU by measuring metal concentrations treatment.
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Shallow water oxygen OEM meter for convenient and fast deployment
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Take a look at our website
www.envirotech-online.com
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