Each year, thousands of tons of biosolids are anaerobically digested and composted with yard trimmings into an EPA-certified soil conditioner called Dillo Dirt. This product is donated to landscape public places and sold to commercial vendors for sale.
Check out the Texas Parks and Wildlife video; Birding in a Natural Wasteland - this is a great explanation on the making of Dillo Dirt and information about the Hornsby Bend Biosolids Management Plant.
You can drop off brush at the Hornsby Bend facility to be used to make Dillo Dirt. Click here for hours and instructions for drop-off.