The necessity of earth and/or manure salt extraction is a topic you can often find in ancient treatises. Here’s a modern interpretation by Phantom Play.
Common earth, grave earth and cow manure. And a device called ESSE, or Earth Salt Self Extractor, as suggested by its inventor. The material is not new for the old hands of the (old) alchemical web, anyway it can be interesting for the beginners, as well as an opportunity to check the differences with the ancient techniques and the alchemical requirements. All the content, including photos, is taken from the expired website Phantom Play.
The Earth Salt Self Extractor & The Extraction of Earth Salt from Cow Manure.
The ESSE is an Earth Salt Self Extractor. It is constructed on a wooden frame on the top of which a clothes dryer drum is mounted, and to the bottom the lower portion of a plastic barrel is attached.
The clothes dryer drum has numerous holes which permit the flow of water through the earth.
The ESSE was loaded with two wheelbarrow loads of decomposed cow manure.
About ten gallons of well water was added to the ESSE drum to start the extraction.
A small electric pump was mounted to provide circulation of the extracted liquid from the lower barrel back to the top of the drum.
After several hours of circulating the liquid, the manure extract is pumped into a glass carboy. The solution has a considerable amount of suspended material but has no odor.
The extracted liquid was poured into a ten gallon copper tub. This was heated by an old gasoline camp stove.
The liquid was boiled for about eight hours to reduce the volume of the liquid down to about one gallon.The odor was musty but not objectionable. Almost pleasing.
An additional five gallons of water was added to the ESSE drum. This was circulated for a day while the previous extracted liquid was boiling down. The new extracted liquid was then pumped into the glass carboy, transferred to the copper tub and boiled down. Then again, another five gallons of water was added, circulated, pumped out, and boiled down. This was done until the extracted liquid started to look less brownish. The total amount of liquid extracted was a little over twenty gallons.
The manure extracted solution was placed in a four quart stainless steel saucepan and reduced in volume to about 500 ml. The solution is syrupy and has the odor of caramelized urine. Yummy.
The first crop of crystals are very fine and have a dark brown color due to a lot of fine suspended organic matter.
The second crop of crystals are also dark but grow into long needle like forms.
The crude salt melts like candle wax at a low temperature when heated on a stainless steel spoon.