Watson-Marlow pumps perform at Cornish Lithium Shallow Geothermal Test Site

Five 500 sequence cased peristaltic pumps from Watson-Marlow Fluid Technology Solutions are enjoying an important function in an indication plant at Cornish Lithium’s Shallow Geothermal Test Site in the UK.
Originally built to check the concept of extracting lithium from geothermal waters, Cornish Lithium is now working on an upgraded version of the take a look at plant as its drilling program expands, finally with the aim of creating an efficient, sustainable and cost-effective lithium extraction supply chain.
เกจวัดแรงลม for pumps came from GeoCubed, a joint venture between Cornish Lithium and Geothermal Engineering Ltd (GEL). GEL owns a deep borehole web site at United Downs in Cornwall the place plans are in place to commission a £4 million ($5.2 million) pilot plant.
“GeoCubed’s process engineers helped us to design and fee the take a look at plant ahead of the G7, which would run on shallow geothermal waters extracted from Cornish Lithium’s own research boreholes,” Dr Rebecca Paisley, Exploration Geochemist at Cornish Lithium, said.
Adam Matthews, Exploration Geologist at Cornish Lithium, added: “Our shallow website centres on a borehole that we drilled in 2019. A particular borehole pump [not Watson-Marlow] extracts the geothermal water [mildly saline, lithium-enriched water] and feeds into the demonstration processing plant.”
The five Watson-Marlow 530SN/R2 pumps serve two different elements of the check plant, the first of which extracts lithium from the waters by pumping the brine from a container up via a column containing a giant quantity of beads.
“The beads have an energetic ingredient on their surface that is selective for lithium,” Paisley explained. “As water is pumped via the column, lithium ions connect to the beads. With the lithium separated, we use two Watson-Marlow 530s to pump an acidic solution in various concentrations via the column. The acid serves to remove lithium from the beads, which we then transfer to a separate container.
“The pumps are peristaltic, so nothing but the tube comes into contact with the acid solution.”
She added: “We’re utilizing the remaining 530 series pumps to assist perceive what different by-products we are able to make from the water. For occasion, we can reuse the water for secondary processes in trade and agriculture. For this cause, we have two different columns working in unison to strip all other parts from the water as we pump it through.”
According to Matthews, circulate fee was among the primary causes for selecting Watson-Marlow pumps.
“The column wanted a move rate of 1-2 litres per minute to fit with our take a look at scale, so the 530 pumps had been ideal,” he says. “The different consideration was selecting between manual or automated pumps. At the time, as a result of it was bench scale, we went for guide, as we knew it would be straightforward to make adjustments while we had been still experimenting with course of parameters. However, any future commercial lithium extraction system would in fact benefit from full automation.
Paisley added: “The beauty of having these 5 pumps is that we can use them to help evaluate other applied sciences moving forward. Lithium extraction from the sort of waters we find in Cornwall is not undertaken anyplace else on the earth on any scale – the water chemistry right here is unique.
“It is basically essential for us to undertake on-site take a look at work with quite a lot of totally different corporations and applied sciences. We wish to devise the most environmentally accountable resolution utilizing the optimum lithium recovery method, on the lowest attainable working value. Using native firms is a part of our technique, particularly as continuity of supply is significant.”
To help fulfil the necessities of the next take a look at plant, Cornish Lithium has enquired after extra 530SN/R2 pumps from Watson-Marlow.
“We’ve also requested a quote for a Qdos 120 dosing pump from Watson-Marlow, so we will add a sure amount of acid into the system and achieve pH balance,” Matthews says. “We’ll be doing extra drilling in the coming 12 months, which will allow us to test our technology on a quantity of sites.”

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