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TEKNOLOJIA
VAZI
Coarse Sea Salt from Clay Brine-Pits in the Sun, Ure 1839
In warm countries the sun alone makes salt from the sea. Andrew Ure (1839): dig shallow pits with smooth clay bottoms by the shore, let sea water settle in a deeper reservoir, then lead it slowly through the pits. When the brine turns reddish, salt crystals form and sink; rake them out and leave them on the banks to drain and dry.
The picture: raking salt in the brine-pits at Marakkanam, India.
Mwanzo
A summer
Maagizo
1
1
Dig the pits
Dig the pits
Along the shore, dig a deeper settling reservoir on the sea side and, behind it, a row of shallow pits divided by low banks. Line the pit floors with clay trodden smooth.
Zana zinazohitajika:
Sepetu
Udongo2
2
Let the sea in
Let the sea in
In spring, fill the reservoir with sea water and let the mud settle. Feed the clear water into the pits, letting it wind through them as it evaporates; top up from the reservoir.
Vifaa kwa hatua hii:
Maji ya bahari1000 litaZana zinazohitajika:
Ndoo ya chuma
Kipima-uzito wa majimaji3
3
Watch for the salt
Watch for the salt
When the brine begins to turn reddish, salt is about to form: a skin appears on the surface, breaks and sinks as crystals.
Zana zinazohitajika:
Kipima-uzito wa majimaji4
4
Rake and dry
Rake and dry
Rake the crystals into heaps on the banks to drain and dry, then basket them up and weigh them.
Zana zinazohitajika:
Reki ya mbao
Kikapu cha mianzi
Mizani ya mizani-mbili5
5
Salt from your seawater
Salt from your seawater
Inapakia daftari la Jupyter…
Vifaa
1- 1000 litaKishikilia Nafasi
Zana Zinazohitajika
7- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
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