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The Science Behind Chelsea Technologies: Excerpts & Updates

18.01.2022

We probably don’t talk about the science behind Chelsea Technologies as much as we might, but academia isn’t short of research papers that reference our science, scientists and apparatus, and this small overview highlights some of the recent publications relevant to our technology. Paper: Single-Turnover Variable Chlorophyll Fluorescence as a Tool for Assessing Phytoplankton Photosynthesis and Primary Productivity: Opportunities, Caveats and Recommendations In this paper, the authors assist the existing and upcoming user community by providing an overview of current approaches and consensus recommendations for the use of ST-ChlF measurements to examine in-situ phytoplankton productivity and photo-physiology. The authors argue thatRead more

Ballast Water Webinar Week

17.01.2022

Chelsea Technologies’ Michael Haraldsson joins the panel this week at Ballast Water Webinar Week to discuss the many issues that are surfacing around commissioning testing. The amendments to regulation E-1 of the BWM Convention adopted by MECP 74 require biological efficacy testing when commissioning a BWTS on board a vessel. But what happens if the commissioning test is unsuccessful? Beginning Tuesday 18 January, Ballast Water Webinar Week will be holding a series of webinars focused on deadlines, commissioning tests and shipowner requirements for 2022 and 2023. Each webinar is meticulously researched and speaks to a key industry challenge, headache or opportunity.Read more

UN Global Goal 3 & The Tryptophan Breakthrough

10.01.2022

What is UN Sustainable Development Goal 3? In the fine words of the UN declaration, ‘By 2030, substantially reduce the number of deaths and illnesses from hazardous chemicals and air, water and soil pollution and contamination.’ Inadequate and unsafe drinking water, sanitation and hygiene is linked to 60 per cent of the disease burden from diarrhoea. UN Goal 3 is one of 17 Sustainable Development Goals established by the United Nations General Assembly in 2015. UN Global Goal 3 (SDG 3 or Global Goal 3) concerns itself with basic human health. Tragically, the world is falling short on its promiseRead more

Achieving UN Sustainable Development Goal 6 With Our Tryptophan Sensor

07.01.2022

What is UN Sustainable Development Goal 6? UN Sustainable Development Goal 6 (SDG 6 or Global Goal 6) is about “clean water and sanitation for all”. It is one of 17 Sustainable Development Goals established by the United Nations General Assembly in 2015, with the official wording: “Ensure availability and sustainable management of water and sanitation for all.” The goal has eight targets to be achieved by at least 2030. Progress toward the targets will be measured by using eleven indicators. The proportion of the global population using safely managed drinking water services increased from 61 per cent in 2000Read more

Monitor Sewage Discharge With Chelsea Technologies’ Tryptophan Sensor

23.12.2021

Typical post-storm sewage discharge into a river system. Water companies are permitted to release sewage into rivers and streams when the existing sewer system’s capacity can’t cope, for example after extreme weather events such as prolonged heavy rain Why is there even sewage discharge in our rivers? Water utilities are permitted to release sewage into rivers and streams when the existing sewer system’s capacity can’t cope, for example after extreme weather events such as prolonged heavy rain. This protects properties from flooding and prevents sewage backing up into our streets, homes and roads. Indeed, the EA itself says that overflowsRead more

Chelsea Technologies’ Acoustic Transducer Design Heritage

03.12.2021

In fact, Chelsea Technologies has wide ranging experience of producing both sophisticated and simple echo repeater systems for the highly specialised defence market through its acoustic design heritage. This experience spans several decades from the first system “CUSTERD”, designed and built in 1995 and used for many years by the UK MOD on trials. More recently systems have been supplied to the USA with systems also deployed with non-NATO navies. What is ERAS? Chelsea Technologies’ Echo Repeater Acoustic Source (ERAS) is a self-contained sonar calibration, test and training system for use on small vessels. An included ruggedised laptop computer isRead more

How Can Tryptophan-like Fluorescence Be Applied For Monitoring Water Quality And What Can It Do For You?

02.12.2021

Laboratory studies have clearly identified that TLF is produced by all bacteria tested, both laboratory and environmental freshwater derived; tryptophan is an essential amino acid produced by all living things. While this work has demonstrated very strong significant correlations between single species enumeration and TLF intensity, the omnipresence of TLF prevents it from being applied as a species-specific enumerator, for example as an E. coli counter. This is particularly problematic in complex surface waters where the microbial communities are diverse and complex, further complicated by optical interferences such as absorbance and turbidity. Recently, the scientific literature has been moving awayRead more

Monitoring Algal Blooms, Maintaining Water Quality and Chelsea Technologies Solutions For Commercial Aquaculture

23.11.2021

Why would commercial aquaculture monitor algal blooms? Algae are essential for life on Earth and for commercial aquaculture. But when some species bloom, they can cause harm. Some 5,000 species of microalgae form the foundation of aquatic food chains, help control atmospheric CO2 levels, and produce roughly half of the world’s oxygen. The troublemakers are approximately 250 species that can produce potent toxins or cause harm through their sheer biomass; a particular problem in the aquaculture industry where the presence of algal blooms can cause all stock to be lost. What is a harmful algal bloom? Algal blooms can: •Read more

Protecting The Marine Environment In Our Changing World With Chelsea Technologies

11.11.2021

Why is global shipping rising? With so many stores closed during the Pandemic, consumers globally had no option but to turn to the internet to buy the products they need. The pandemic sharply accelerated the shift towards a more digital world and triggered global changes in online shopping behaviours that are likely to last well beyond 2021. A key thing to note is that this acceleration towards online shopping is a global phenomenonas is the new urgency protecting the marine environment: in developed economies, online shopping was already popular, but some of the largest increases were in China and India,Read more

Being Part Of The Solution: How Chelsea Technologies Research And Innovation Is Tackling Climate Change

09.11.2021

Why does Phytoplankton matter regarding climate change? Seen from space, earth is unquestionably an ocean planet; a beautiful blue marble serenely floating in a cold empty void. Standing at any shore, the big blue appears endless and even somewhat empty, filled with nothing but water. But below the surface, the ocean is in fact brimming with microscopic plants called Phytoplankton. If you were to take an empty glass and scoop up some water from the shore, in that glass you would have between 75-100 million Phytoplankton. Phytoplankton are the foundation of the aquatic food web, the primary producers, feeding everythingRead more

Monitoring Bacteria in Aquatic Environments With Chelsea Technologies’ Tryptophan Sensors

08.11.2021

What is Tryptophan? Tryptophan is an amino acid used in the biosynthesis of proteins and exists in many foods that are protein-rich; a natural component of aquatic human effluent events. Tryptophan fluoresces in the ultra-violet (UV) region of light, which means that when we direct light of a particular UV wavelength onto Tryptophan, it will emit light of a longer wavelength; ergo tryptophan sensors. For example, light of certain wavelength directed towards Tryptophan emits light at different wavelength. The intensity of this emitted light can be detected and measured by a suitable sensor such as a Chelsea Technologies Tryptophan sensors.Read more

Sonardyne Group Limited changes name to Covelya Group Limited

18.10.2021

The name change is effective immediately as the organisation positions itself for further growth and appoints Simon Partridge as its inaugural Chairman. (Blackbushe, UK. 5 OCTOBER 2021) – Sonardyne Group Limited, a family-owned global group of companies comprising Chelsea Technologies, EIVA, Sonardyne, Voyis and Wavefront, announced today that it is rebranding as Covelya Group Limited. Alongside the name change, the company announced that Simon Partridge will succeed Ralph Rayner as company Chairman with immediate effect. Ralph will remain on the board in a non-executive capacity. The announcement was made by Covelya Group CEO, Stephen Fasham. Commenting on the change, StephenRead more