On-line Digital Images
SC 371623 General view from NE of Settling Vats, with Continuous Process Vats (with stirrers) in foreground (28/3/96)
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On-line Digital Images
SC 371624 Detailed view of weed stem entering the primary mill portion of the Stem Mill
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On-line Digital Images
SC 380917 View from SW in Weed Store, showing stocks of Laminaria Hyperborea, a seaweed from the Outer Hebrides and Ireland
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On-line Digital Images
SC 380918 General view from E of Stem Mill, which comprises shaking conveyors which shake off sand and shells (left), and primary and secondary mills (centre and right)
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On-line Digital Images
SC 380919 View from E in Weed Store, showing sacks of milled weed awaiting processing into alginate
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On-line Digital Images
SC 380920 View from NE of Mature Tanks, in which milled weed matures at approximately 80 degrees C for 3-4 hours, after first being mixed with hot water and alkali. There are ten operational welded-steel cylindrical tanks, the output of which is sodium alginate paste
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On-line Digital Images
SC 380921 View from SE of Slurry Area (with empty slurry tanks visible), where sodium alginate paste is mixed with 'feedback' (dilute alginate solution from an intermediate recovery process), producing slurry.
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On-line Digital Images
SC 380922 General view from SW of Settling Vats
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On-line Digital Images
SC 380923 Detailed view of Separation Unit, part of the Continuous Process
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On-line Digital Images
SC 380924 View from NE of Decant and Feedback Tank, with Settling Vats in background. The Feedback is sent to the Slurry Area to be mixed with Sodium Alginate Paste to become slurry
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On-line Digital Images
SC 380925 View of Conversion Vat No.5, in which calcium chloride is added to alginate liquor, producing Calcium Alginate Pulp
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On-line Digital Images
SC 380926 Detail of Floatation Vat No.4, in which Calcium Alginate pulp is allowed to float on the surface of the vessel and swept off by rotating paddles, after which it passes through the dejuicer
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On-line Digital Images
SC 380928 General view of Leaching Area, showing Con Vat and Dejuicer Units. In this process, the Calcium Alginate is reacted with sulphuric acid in staged additions, resulting in the removal of the calcium and the creation of the Alginic Acid
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On-line Digital Images
SC 380962 View of two of the three Stord Bartz Presses, used to increase the solids content of the Alginic Acid from 10 to 30%
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On-line Digital Images
SC 380963 View from SW of part of a row of nine Dough Mixers, manufactured by the Morton Machine Co Ltd of Wishaw, Scotland. In this process, the Alginic Acid is mixed with Sodium Carbonate to produce Sodium Alginate Dough in 400 kg batches
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On-line Digital Images
SC 380964 View of three of six Sodium Alginate drum driers, with feed hoppers in foreground. The Sodium Alginate is milled after leaving the hopper, and is then blown into the revolving drum driers, which are supplied with steam-heated hot air
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On-line Digital Images
SC 380965 View of Mill and Sifting area, showing two of the four mill/sifter units (left static, right in motion). The Sodium Alginate is milled and sifted in this process, and is subsequently bagged into sacks
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On-line Digital Images
SC 380966 Detailed view of dejuicer for Floatation Vat No.5
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On-line Digital Images
SC 380968 Leaching Area: Detailed view of Con Vat No.3, and back of Dejuicer No.2
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On-line Digital Images
SC 380969 View from NW of northern part of works, comprising buildings dating from the establishment of the factory by the Ministry of Supply during World War Two (early 1940s)
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SC 380970 Records of the Royal Commission on the Ancient and Historical Monuments of Scotland (RCAHMS), Edinbu
View of entrance to spillway from W, dam supplying water to works, Alginate Works, Barcaldine.
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On-line Digital Images
SC 380971 Dam (NM 97 42) supplying water to works: Detailed view of entrance to spillway from SW
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On-line Digital Images
SC 380972 View from SE of NE end of main production block, including tower-mounted cast-iron water tank
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On-line Digital Images
SC 380985 Aerial view of Barcaldine Alginate Works looking to the South West. Distant view of the Creran Moorings Marina and the Sand and Gravel Quarry operated by J&A Gardner, also the mouth of Loch Creran and the Firth of Lorne and the sea beyond.
c. 1980
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