>What I always wonder about though is just how much work it saves in the end for us to do it instead of at a central location.
That depends. The big is there is so much volume that isn't recyclable that the costs of machines to sort everything (when most is waste) is just too high.
As the other post started to get to: for some things clean waste matters and is common enough to sort. If you have greasy paper about all that we can do is burn it, but clean paper has enough value as to be worth it. Thus a separate stream for clean cardboard/paper is something that should be done early.
For other things cleaning isn't as big a deal (unless you can get perfect clean they will need to clean again - but you still want it not to stink). Throw all your plastic (no bags - unless you have the rare system that can handle them), cans, and glass together: They have to sort anyway, but compartments for each (or separate trucks) are going to add up costs - One week there is more cans than others so you end up going back to the facility with half full compartments all the time burned fuel each way.
You still want to separate trash, (even if the bag issue was solved) as there is so much that we can't really do anything about that the quantity means the sorting machines needed to handle total volumes are too high unless most things we know can't be recycled are not in.
I'm not sure about organics. My impression is that most houses don't have enough of it as to be worth the bother in general. Businesses that have enough as to be worth it should also separate their kitchen waste but otherwise more fuel is burned in the trucks than we save.
We also have to ask what is done with regular waste. Landfills are slow compost piles for organics, and we do collect the methane these days. Incinerators turn organics and plastics into fuel which is often the best we can do with them (recycling plastics still needs a lot of energy/chemicals, burning releases some CO2, but perhaps less than the above - this has been argued many times to different conclusions)
The Ford Bronco assembly plant is near a large landfill where the methane is captured and used in the plant. Fans of other brands joke that the Bronco is literally made from garbage.
Bronco fans could counter with this: so are Princess Catherine's (rather not cheap) shoes. She is a fan of a brand called Rothy's, which makes casual footwear out of recycled plastic bottles that sell for $150 or so/pair.
That depends. The big is there is so much volume that isn't recyclable that the costs of machines to sort everything (when most is waste) is just too high.
As the other post started to get to: for some things clean waste matters and is common enough to sort. If you have greasy paper about all that we can do is burn it, but clean paper has enough value as to be worth it. Thus a separate stream for clean cardboard/paper is something that should be done early.
For other things cleaning isn't as big a deal (unless you can get perfect clean they will need to clean again - but you still want it not to stink). Throw all your plastic (no bags - unless you have the rare system that can handle them), cans, and glass together: They have to sort anyway, but compartments for each (or separate trucks) are going to add up costs - One week there is more cans than others so you end up going back to the facility with half full compartments all the time burned fuel each way.
You still want to separate trash, (even if the bag issue was solved) as there is so much that we can't really do anything about that the quantity means the sorting machines needed to handle total volumes are too high unless most things we know can't be recycled are not in.
I'm not sure about organics. My impression is that most houses don't have enough of it as to be worth the bother in general. Businesses that have enough as to be worth it should also separate their kitchen waste but otherwise more fuel is burned in the trucks than we save.
We also have to ask what is done with regular waste. Landfills are slow compost piles for organics, and we do collect the methane these days. Incinerators turn organics and plastics into fuel which is often the best we can do with them (recycling plastics still needs a lot of energy/chemicals, burning releases some CO2, but perhaps less than the above - this has been argued many times to different conclusions)