Biological treatment for organic matter removal by moving bed biological reactor (MBRR).

Cylindrical and horizontal/vertical reactor manufactured in GFRP (Glass Fiber Reinforced Polyester) composed of GFRP manholes access, communication wall between compartments, inlet, outlet and communication connections, air vent and lifting rings.

MBBR technology is a biological treatment in which the biomass grows adhered to mobile supports under optimal agitation and oxidation conditions. The mobile supports are plastic material with a high specific area (>500 m2/m3) with a density around 1g/cm³. This technology has the following advantages compared to the activated sludge process:

• High stability of organic matter degradation processes
• Reduction of the volume of the biological reactor for an equal quality outlet effluent
• Sizing of the reactors with tank volumes and filling material flexible to adapt to current and future efficiency removal requirements
• Flexibility to face contaminating load variations and inhibitors, to normalize the process in a few hours
• Improves secondary settling because the system does not require recirculation to maintain the bacterial population, avoiding the bulking
• Easy control and maintenance

The reactor will have different layouts for chambers and fillings according to the required removal efficiencies, inlet contaminating loads and flows to treat.

• Settling chambers: settling or settling/digestion (Imhoff).
• Several aeration chambers: aerobic for COD removal and aerobic for nitrification.
• Specific plastic material for aeration chambers.

The aeration system maintains in suspension the plastic material supports (agitation process) and provides the necessary oxygen (oxidation process). A lateral channel blower with accessories: anti-vibration sleeve, collector, filter, manometer, safety valve and air purge.

The air distribution system is composed of a fine bubble diffusers grid installed at the bottom of the reactor to improve the aeration and agitation processes.

The communication between the compartments consists in an efficient system which avoids the plastic material fixation and release.

The secondary settling is performed by a secondary clarifier compact to the reactor
or independent and truncated. The equipment manufactured in GFRP (Glass Fiber Reinforced Polyester) will be composed of a central supply and Thompson canal to collect the clarified water.

The plant control will consist of an electrical panel board.

The WWTP can be composed of an automatic and dissolved oxygen meter (option)

The tagging system is:

• FS : Primary settling
• ANOX : Anoxic chamber for nitrogen removal (phosphorus in option)
• BIO : Aeration chamber with high surface moving bed
• C – TC: Secondary settling chamber with sludge removal (option)