Treatment of Grit from Sewers and Road Sweepings
Sustainable processing and recycling of mineral waste
Mineral-rich wastes such as street sweepings, sludge from sewer flushing and cleaning of stormwater tanks and gullies, and grit trap material contain not only grit and gravel but also trash (e.g. packaging material), coarse materials (e.g. stones, wood, glass, metal parts) and organic materials (e.g. soil, leaves, grass, fruit stones and cereal grains).
For the processing and treatment of such mineral wastes HUBER offers individually designed grit treatment processes.
Process
Process technology according to requirements
Depending on the required processing capacity, the composition of the input material to be treated as well as the requirements on the output material and other general conditions, different process engineering concepts are necessary.
The main process stages of grit treatment are:
HUBER Grit Acceptance System RoSF7
Receiving and intermediate storage tank for the material delivered and to be processed (e.g. sewer grit, road sweepings).
HUBER Wash Drum RoSF9
The wash drum is used to separate all coarse material and foreign matter that would make further treatment difficult.
HUBER Coanda Grit Washer RoSF4
The grit washer separates organic matter from the mineral fraction and produces clean grit with an organic content < 3%.
Wash water treatment
If the wash water required for grit processing is not provided externally, the grit processing plant can also be supplemented with a wash water treatment system. The required water is then purified and can be reused (water cycle).
On the basis of its wealth of experience in developing complete grit treatment systems, HUBER is able to provide a tailored concept for each individual grit treatment project.
Products
HUBER Products for Processing and Recycling of Mineral Waste
Media
