General > General Technical Chat
140 million liters of water down the drain
helius:
Urea is one of the most common nitrogen fertilizers; ammonium nitrate is a much more concentrated source of N, but less widely used for what should be obvious reasons. Perhaps surprising is that urea has very little smell and is white in color, not yellow. It is also commonly used to support bacterial or yeast fermentation, which is why urine doesn't stay germ-free for long. Indeed, fermentation of urine-soaked straw was the original source of nitrate for making gunpowder.
There's always too much of a good thing, though, and concentrated urine can "burn" plants, just like commercial fertilizer if used at too strong a rate.
EEVblog:
--- Quote from: SeanB on April 21, 2014, 05:16:30 am ---If you have ever looked at what is in the piping used to deliver water you will add a filter.
--- End quote ---
Mrs EEVblog is a former water quality scientist with Sydney Water. We filter all our drinking water ;)
NiHaoMike:
--- Quote from: helius on August 22, 2020, 12:06:40 am ---There's always too much of a good thing, though, and concentrated urine can "burn" plants, just like commercial fertilizer if used at too strong a rate.
--- End quote ---
Works surprisingly well as "organic weedkiller", if directly applied to the leaves and allowed to dry.
eti:
--- Quote from: EEVblog on August 22, 2020, 12:51:30 am ---
--- Quote from: SeanB on April 21, 2014, 05:16:30 am ---If you have ever looked at what is in the piping used to deliver water you will add a filter.
--- End quote ---
Mrs EEVblog is a former water quality scientist with Sydney Water. We filter all our drinking water ;)
--- End quote ---
Dave, can you recommend a permanent installation filter type? We use "Brita" jug for 5 years, works well but something more permanent would be better I feel. Thanks!
EEVblog:
Response from Mrs EEVBlog after seeing that article: "That's ridiculous!"
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