Hmmm. Not so sure.It maybe a language issue ? We make a difference between organic waste (which the local authorities are required to collect) and a compost.
A compost is meant to be used in the garden and it needs some oxygen to activate. It can't be done in a secure plastic bin like other waste, which is why most people, and local authorities when they provide a public compost, don't throw animal by products to detract rodents.
Our collective public composts usually look more or less like this.
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There are different ways to compost but it just means breaking down organic waste.
I totally get why public composting systems may not want to handle animal waste, but the truth is that animal waste breaks down into compost just like vegetable waste.
Even bones eventually - but they really do take for forever!
There is a lot of complex guidance given about composting and lots of products sold to aid in achieving the perfect compost process. But as long as it doesn’t get too soggy and has some air circulation it really just happens on its own.
The only bad thing is if anaerobic bacteria take over because then it smells. But as long as your heap has access to air and doesn’t get too soggy that won’t happen.
Many of you know I am basically lazy, and I have the luxury of having space. So my preferred compost method is just to chuck everything organic (yes including the used pine pellet cat litter) in a wire framed enclosure, and when it is full let it sit a few years.
For sure raccoons raid the heap for food and they may even sample the cat poop, and poop on top of the heap in return. There may be rats, but there is no nesting area around my heaps, so I think rats would just pass through looking for food. They don’t smell and produce nice dark compost.
Where I live in the US the local authority doesn’t even collect non-organic waste.
When I am in the UK the city has a food recycling program (animal products permitted) which is basically a big compost place - but there is a compost heap at the back of my building which we all use.