Good composting imformation on these links:
How to Get the Balance Right for Really Fast Compost
It's important to have the right balance of materials in our fast compost so that it breaks down as quickly and efficiently as possible. The bacteria in our compost need both carbon and nitrogen to function; carbon for energy and nitrogen for protein synthesis. For every one unit of nitrogen used by the bacteria they also consume about 30 units of carbon. Therefore, in order to keep the bacteria working efficiently we need to create a compost pile that is about 30 parts carbon to 1 part nitrogen.
Since most compost materials don't have a carbon to nitrogen (C:N) ratio of 30:1 we need to combine our materials so that the total mixture will be as close as possible to 30:1.
Here's an example:
We want to have a ratio of 30:1 in our compost bin but we only have access to the following ingredients:
kitchen scraps (vegetable & fruit peelings, coffee grounds etc: about 12:1)
grass clippings (about 20-30:1)
sawdust (fresh: 500:1, rotted 200:1)
Using different combinations of materials we will try to get close to the magic 30:1 ratio. If we use 1 part dry leaves to 1 part kitchen scraps we would have the following:
If we use 1 part leaves, 1 part kitchen scraps and 1 part grass clippings we would have:
below is a video on trash can compost bins.