As a new and rapidly growing science the applications of ultrasound methods in environmental
technology hold a promising future. Compared to conventional methods ultrasonication can bring
several benefits such as being environmentally friendly (no toxic chemical are used or
produced) low cost and compact allowing on-site treatment. Besides an overview featuring the
background behind ultrasonic technology this brief summarizes the main studies and innovations
reported in recent research that has utilized ultrasound methods in environmental analysis
water and sludge treatment soil and sediment remediation to air purification.