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File:Solar salt Grassmere.NZ (12130327085).jpg

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Dominion Salt – Lake Grassmere

Seawater contains just over 2.5 per cent sodium chloride, together with significant amounts of other salt. Some 60,000 to 70,000 tonnes of salt are harvested from Lake Grassmere each year. Sea water is pumped into the 688 hectare main lake continuously throughout summer. As nature does its work and evaporation increases the sea water’s strength, it is pumped into a series of concentrating ponds, where further evaporation takes place.

When the brine reaches saturation point it is transferred into crystallisation ponds during the summer months.
Date
Source Solar salt Grassmere.NZ
Author Bernard Spragg. NZ from Christchurch, New Zealand
Camera location41° 43′ 43.88″ S, 174° 08′ 34.18″ E Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

This image was originally posted to Flickr by Bernard Spragg at https://flickr.com/photos/88123769@N02/12130327085. It was reviewed on 14 January 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-zero.

14 January 2017

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current21:24, 14 January 2017Thumbnail for version as of 21:24, 14 January 20171,896 × 1,338 (664 KB)Holly Cheng (talk | contribs)Transferred from Flickr via Flickr2Commons

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