wanton dwarf
Member
Sorry what do you mean by loss to the sewerage system by farm food systems?
All the nutrients that are taken from the land via crops grown for human use end up in the sewerage system. Most of which ends up in the sea.
Sorry what do you mean by loss to the sewerage system by farm food systems?
It’s an endless discussion isn’t it? As far as the waste is concerned, surely the more important area to take action on is cutting out or reducing the waste in the first place. How much waste is created by supermarkets for instance? Mountains of it just because they decide that consumers won’t eat slightly misshapen veg etc even when they’re hungry and got no money. How much food is wasted as a byproduct of something that isn’t in any way an essential item? What’s to happen for instance to all the 70 odd % of the soya crop that the vegans don’t want fed to chickens or pigs?Yes a digester is a great idea for recycling waste into a useable product, energy. However growing crops to feed said digesters is stupid, why, because the crops are not waste. They are a valuable commodity with multiple uses. Skipping all of those uses to the recycling stage is a waste.
You are essentially expending energy to create energy, i honestly can’t see how it adds up from an energy in to energy out ratio.
Not to mention all the other uses of the land which could be carried out.
For instance grassing it out for livestock production would have the potential to capture more carbon than than a digester would help offset in my opinion….only my opinion.
If all the food waste, garden waste even slurries or fym if deemed useful enough would be a decent job because its adding value to those wastes.
Doesn't contain enough N. Still require chemical N for crops like silageWhy would you use Chemical Nitrogen when you have digestate full of Nitrogen, PK and all the trace minerals which was in the original crop ?
Awful lot of farms with AD plants invested in it because of grass weed issues. Basically they’ve no choice as they can’t effectively produce combinables every year without having such a diverse rotation.The looming world tight supply of cereals/ maize(corn), makes me question the growing of crops , worldwide, for biomass to feed AD facilities , versus using the same amount of ha’s to grow cereals for human /animal consumption.
Worldwide I wonder how many ha’s of biomass crops are grown to feed AD facilities.If those ha’s were growing combinable cereals , worldwide,would it make any significant difference to the situation that the tight worldwide grain supplies are heading towards, by the end of this year?
Or, we are using perfectly good land that could be used to grow feed-stock to produce energy, we need both food and energy, we can't survive without either of them.You're still using food producing land to grow your fuel for the AD plant though. It doesn't matter how efficient the system itself is, its still using arable land.
The vegans are idiots. Soya is grown for human consumption, oil is its highest value and Americans cook with it. Soya/Tofu is eaten and in lots of products. Animals eat the by product.It’s an endless discussion isn’t it? As far as the waste is concerned, surely the more important area to take action on is cutting out or reducing the waste in the first place. How much waste us created by supermarkets for instance? Mountains of it just because they decide that consumers won’t eat slightly misshapen veg etc even when they’re hungry and got no money. How much food is wasted as a byproduct of something that isn’t in any way an essential item? What’s to happen for instnce to all the 70 odd % of the soya crop that the vegans don’t want fed to chickens or pigs?
Hundreds of acres of good quality land due to go under solar around here again ,they won't put on crap, mountain common land that wont grow FA?I see that Centrica are having 72 acres of solar panels installed, to produce18MWs on Joss Stratton's land in South Wiltshire. Any idea about the exact location @Boysground ?
Installed capacity !!I see that Centrica are having 72 acres of solar panels installed, to produce18MWs on Joss Stratton's land in South Wiltshire. Any idea about the exact location @Boysground ?
Good , imagine if they eat it all they would require a third less and this price a third less , more theh waste the better imo .Food waste is more of an issue, last figure I saw about one third of food is wasted?
Or, more special offers, more production, more waste, all sent to ADGood , imagine if they eat it all they would require a third less and this price a third less , more theh waste the better imo .
Yup. Been covered many many times on here by many of us. More soy goes into soy milk than goes into cattle feed, not that the media have any intention of listening to facts.The vegans are idiots. Soya is grown for human consumption, oil is its highest value and Americans cook with it. Soya/Tofu is eaten and in lots of products. Animals eat the by product.
I see that Centrica are having 72 acres of solar panels installed, to produce18MWs on Joss Stratton's land in South Wiltshire. Any idea about the exact location @Boysground ?
Perhaps we should be looking at utilising human waste in digesters? Is that even possible?All the nutrients that are taken from the land via crops grown for human use end up in the sewerage system. Most of which ends up in the sea.
That is exactly what happens at the sewage treatment plant, where the solids are separated and used as fertilizer. The treatment is to kill pathogens in the solids, the liquid is treated by varying methods and returned to the water course.Perhaps we should be looking at utilising human waste in digesters? Is that even possible?
Perhaps I’m wrong but i was of the opinion that digestate, although highly variable depending on whats feeding it, is high in p and k not so much nitrogenWhy would you use Chemical Nitrogen when you have digestate full of Nitrogen, PK and all the trace minerals which was in the original crop ?
See :Perhaps we should be looking at utilising human waste in digesters? Is that even possible?
The nutrient in Digestate is exactly what was in the feed-stock (well almost), and you are correct it varies greatly depending what you put in.Perhaps I’m wrong but i was of the opinion that digestate, although highly variable depending on whats feeding it, is high in p and k not so much nitrogen