AEC - Model eco-line -Sewage Treatment Plants (STP)
The eco-line system is constructed as a modular biological sewage treatment plant, which has been developed to meet the demands of the smaller to medium sized isolated sewage treatment applications. The eco-line® system is ideally suited for the treatment of sewage from villages, hotels, holiday villages - camping sites etc.
The eco-line system can be supplied as a complete turn key plant including tanks manufactured from fibreglass reinforced polyester for immediate installation. Connections for inlet, outlet and electricity are required to be done locally. The eco-line system is completely enclosed to minimise fluctuations in temperature, thereby providing stable conditions for optimum biological treatment. The eco-line system is based on a compact biological purification unit. The number of units installed will be dependant on the volume and strength of the sewage to be treated. The modular design allows the treatment plant to be sized within a margin of approx. 50 PE.
The Purification Process
The eco-line® system is a complete mechanical/ biological (and if necessary chemical) sewage treatment plant supplied, where needed,with full nitrification.
The biological degradation process of dissolved organic matter takes place by means of bacteria growing
on a submerged filter. The process can be described as an aerated, fixed- film process, where air is introduced from the bottom of the filter to create aerobic conditions.
The fixed-film process is known to be one of the most stable and controllable techniques for the biological treatment of sewage. The process is stable despite the normal variations in the supply of sewage.
This makes the eco-line® process an ideal application for use in smaller treatment plants.