1. A Distinctive Liquid Waste Unit
Six holding tanks are used for the temporary storage of the received liquid waste. Each tank or group of tanks is dedicated for the storage of specific liquid streams.
Following laboratory analysis of the stored liquid waste one of the following treatment lines is selected for the treatment of the waste:
Electro-coagulation and Electro-flotation / Physicochemical Treatment / Evaporator.
The unit is suitable for the treatment of bilge water, water produced during the tank cleaning operations and heavy emulsified mixtures. Treatment is distinguished in two different stages:
• The electro-coagulation plant
The electro-coagulation carries out primarily flocculation with the creation of an electric field between the electrodes, supporting the gathering of the loads present in the effluent. The metal ions (Al3+) released by dissolution of reactive anodes act as coagulants. Ions hydroxides (OH -) are produced with cathode by electrolysis of water.
• The electro-flotation unit
The electro-flotation carries out separation of liquids/solids by flotation, thanks to the production of fine hydrogen bubbles by electrolysis of water by means of suitable electrodes.
The liquid effluent of this process is further treated at the physiochemical water treatment stage , while the produced sludge is used at the alternative liquid fuel production line.
Dryer technology: This equipment is used to remove additional water and organic constituents from centrifuge or filter press cakes to maximize the volume reduction of hazardous and other waste streams. The addition of a thermal dryer can reduce overall waste volume by up to 98%.
2. Production of Alternative Fuel and Raw Materials
Packaging material and outdated products with high calorific value are converted into Alternative Solid Fuel (ASF). With the use of an automotive crane waste is fed into a shredding system.
Conveyor-belts deliver the shredded material to a granulator, where the particles acquire the desired dimensions according to the defined quality standards. The product is then forwarded to the Refuse Derived Fuel (RDF) production line for further treatment. Final product is delivered to the recovery facility.
Liquid industrial waste is also converted into alternative fuel for industrial use. Waste including oily sludge and other chemical industrial sludge, slops from marine activities etc., are collected and transported to our facilities, ready to be forwarded to the production line. Waste is converted into Liquid Alternative Fuel (ALF) and final product is packaged and transported to certified disposal facilities.
A Certificate of Receipt is issued upon removal of the waste from the client, which renders Polyeco responsible for the treatment and final disposal of the waste.
Polyeco supplies ferrous sulphate, urea solution and ammonia solution to industrial clients.
3. Oily Sludge Treatment
Polyeco offers integrated management of the oil sludge achieving high oil recovery rates and minimization of final waste (dry sludge) quantity. Containerized decanters or tricanters are used for sludge processing.
This process promotes the waste volume reduction and the recovery of oil by separating the sludge into three phases: dry sludge phase, oily phase and water phase. This process can take place at Polyeco’s facilities or on-site.
4. Hazardous Waste Transfer Station
The HWTS was designed and built in conformance with the highest safety standards. Automatic fire detection and fighting system is installed throughout the store area and suitable HDPE (High Density Polyethylene) liner is placed on the ground to prevent potential leakages.
The purpose of the HWTS is to offer temporary storage capabilities for various types of hazardous waste (flammable, toxic, corrosive etc.), which cannot be treated within the facility, so that they can be immediately removed from the producer’s site minimizing risk to health or the environment. The waste is then transferred according to the EU law to certified European disposal facilities.
5. Vehicles and Specialty Equipment