Retained materials should be reused whenever feasible and reasonable. Waste from sewer maintenance equipment or basin cleaning, primarily consisting of sand and gravel or slag, also includes some residues (such as packaging materials) and organic matter (e.g., soil, leaves, grass, fruit stones).

Our technology removes and cleans residues and solid particles. They can be disposed of as municipal waste. Our sand is thoroughly washed and dehydrated, with low levels of volatile solids (<3%) and water (<10%). It can be used for construction as a foundation for roads or pipelines. We also extract organic matter that can be reused as soil material and recycle washing water as process water.