RandomUsername12123 t1_iuyuzj4 wrote
Reply to comment by chrisdh79 in Researchers fed microalgae on leftover coffee grounds to produce high-quality biodiesel | It could decrease reliance on palm oil to produce biofuel. by chrisdh79
The problem is that coffee grounds is not a kind of industrial waste and at best the only good source of then are bars et similar.
And from these bars it has to be collected in a way(transport and human hours) , i can't think on how this could be feasible as a way to do anything useful.
Coffee grounds can be used as fertilizer and that is already a good use of them.
Going back to the first point nespresso has a initiative where you can return the aluminum cans to the store to be recycled and the quantity of coffee and aluminum is laughably small
responsible_blue t1_iuyyf14 wrote
What about all those canned drinks Starfucks makes now? That coffee has to come from somewhere, and that creates industrial sized tonnage to get rid of, potentially at multiple different bottlers in a fully Global footprint.
zeppy159 t1_iuzbqro wrote
The transport and human hours costs are minimal because it only requires adjustments to the already present stock delivery logistics. I know that Mcdonalds already collects used grounds, grease and cardboard for re-use/recycling and it all just gets picked up during routine stock deliveries.
Smaller cafes and such may struggle to implement similar procedures, but large chains such as starbucks should have no problems.
RandomUsername12123 t1_iv08pr8 wrote
If you have to implement it in an already established operation seems easy, i was thinking about an indipendent organization that drives a van to collect them or ship it.
I don't have that much imaginations it seems hahahah
Pvt_Haggard_610 t1_iv0rqzo wrote
>The problem is that coffee grounds is not a kind of industrial waste and at best the only good source of then are bars et similar.
Are you forgetting the mass production of instant coffee powder.
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