QUARTZITE AND ACTIVATED CHARCOAL FILTRATION
DESCRIPTION OF THE PLANT Filtration plants constructed in a single block are the most rational and economic solution, for treatment of efuent characterised by pollution due to the presence of substances such as Suspended Solids, Hydrocarbons and Surfactants from: car washes, mechanical workshops, etc.. Their economy of operation relates to their ability to work without the need for operator intervention, which is only required for a few minutes/week, during the periodic wash-out operations. The systems do not require chemical products for operation, so the salt content of the waste water is not altered. This is particularly advantageous in all cases when partial re-use of the treated water is required. The filtration lines consist of two tanks or columns, equipped with n° 2 inspection covers, to allow periodic operations to load and replace the Quartzite and/or Activated Charcoal filter beds. These are extremely reliable and long-lasting finished products, that are able to withstand both the action of chemical agents and the weather. All the electromechanical equipment installed to support the plant feature maximum reliability, extreme
THE TREATMENT CYCLE FOR DISCHARGE
TO LAND OR RE-USE
1. The water to be treated following external car washing activities are carried to the pre-treatment section, which consists of: grit separator, coalescing filter type oil separator and aerated trickle filter;
2. The waste water leaving the pre-treatment section enters a so-called homogenisation and storage tank, which contains the submerged electric pump used to power the plant.