powders of specific particle size, high productivity and versatile applications. By definition, âSpray drying is the transformation of feed from a fluid state into a dried. particulate form by spraying the feed into a hot drying medium.â (Masters, 1991) A spray dryer operates on convection mode.
Sometimes the grounds and maintenance department of a town or county creates mulch from trees that have been cut down and they make it available to the public. To lay a 4-inch-deep spread of bark mulch in a 300-square-foot area, a landscape or garden service will charge $425, which includes the material and labor. You can buy the mulch for $85 and do it yourself, and pocket a 80 percent saving.
1 The use of a blower truck to install landscape mulches typically saves 10 to 15% of material over hand applied mulch. 2  For instance: On an average 50 yard property, mulch savings can be 5 yards @ the average $55 per yard installed price.3  Thatâs savings of $275 on material costs for that one property alone. A typical landscape contractorâs mulch installation rate is between $50 and $70 per yard; whereas, mulches using our blower services are installed between $35 and $45 per yard depending on your mulch material selection.