How are instruments us to obtain blood samples disposed?

Materials used for blood collection are collected in puncture proof plastic containers meant for collecting sharps. When the containers are 3/4ths full they are closed with tight lids and sent for disinfection and disposal. They are shredded, autoclaved and the sterilized bits and pieces which are fine & dust like are compacted and sent for burial underground (landfills) in selected areas. Putting all sharps (needles/ cannula, syringes used for blood collection) into the "Sharps container" is the most important step.