How do they work?

Marratx Plant Operation:

The composting plant in the area of Can Canut allows a correct use of the organic matter present in all sludge from the WWTP (wastewater treatment plant) in the MET (organic matter from a process for producing metanitzacin bio-gas) and FORM (organic fraction of municipal waste).

Given the particular characteristics and different sources of organic fractions, their treatment is also differentiated.

Process description: The composting plant treats all of the digested sludge from wastewater treatment plants, digester and biometanitzacin from the organic fraction collection, continuing several distinct areas:

Reception area and preparation of raw materials:

-Sludge, FORM, MET and ME.

Treatment-Zone FORM (drums fermenters).

-Zone of maturation (dynamic tunnels).

Tune-Zone and removal of impurities.

The organic matter from different sources in different areas are recepcionan:

-FORM: FORM beach reception.

-MET: movable floor.

-Sludge: discharge hoppers.

These materials are mixed with the appropriate ratio of structural material and are intended for areas where you start the composting process. In fermenting drums, mixed with the plant fraction FORM undergoes intensive decomposition, and then passes maturation tunnels.

In the dynamic tunnels becomes the process of maturation of the various mixtures of organic matter. The tumblers are responsible for moving material along the tunnels to get to the download area of the material. 34 were installed dynamic tunnels with a length of 50 meters.

The downloaded material is directed by conveyor belts to refine the area where passing through a trommel, eliminating the heavy fraction of the final product.

The plant has other equipment to remove impurities, such as:

Collection system films, magnetic separator and densimetric table. The whole plant has a deodorizing system that captures the air of vessels and leads to a biofilter to be treated properly and eliminate contaminants in the gas stream.

Operation of Plant Calvi:

The composting plant of Calvia is designed to treat the organic fraction of municipal waste (FORM) has been collected selectively.

The plant consists of a reception of raw material, fermenting drums dynamic odor scrubbing system, maturation zone, zone refining and storage area of finished compost.

The materials that reach the floor (FORM and plant fraction) are dumped into receiving bins for raw materials, then be mixed in suitable proportions. This mixture is introduced into the drum fermenters, which begins the breakdown of the mix.

ENVITAL technology is selected and is a closed drum where fermentation takes place aerobically intensive dynamic that allows the stabilization of biodegradable organic resources.

After 6-7 days of fermentation on the drums, it proceeds to download, and the material obtained is drawn towards the area of separation of impurities by conveyor belts.

A magnetic separator separates the iron fraction and then a star screen separates coarse plant fraction and impurities from the fine fraction. In the discharge chute of the star screen was installed a system to capture film, which suck the plastic.

The gases produced during the fermentation process are extracted by the ventilation system of the drums and sent to the odor treatment system for processing.

The product is left in the zone of maturation, from where, finally, will the processing of refining.

How does the Felanitx plant operate:

The selected composting technology is the dynamic channel aired. Basically, each floor consists of reception area of raw materials, dynamic channel aerated biofilter, maturation zone, zone refining and product storage area.

The materials arrive at the plant (sludge and plant fraction) are discharged into the silos of raw material receipt to later be mixed in suitable proportions. This mixture is introduced by a bucket in the mouth of the channel where you start aerated biological decomposition. Turner machine mass moves through the channels to the discharge of these. The level of oxygen needed for biological decomposition and odor control are achieved by the air extraction system beneath the channels. The air sucked into the fan system is driven to the biofilter which claims its deodorization before being released into the atmosphere.

The product in the discharge zone the area will continue maturing for a second less intensive phase of decay to reach the level of maturity suitable for commercialization.

Once the composting process, compost goes through a refining system (trommel or vibrating sieve) which separates the coarse fraction of the plant has not been incorporated into the product during the composting process.

TIRME Environmental Technology Park Mallorca Ctra. de Sóller, km 8,2 - 07120 Palma de Mallorca
Tel. +34 971 435 050 - Fax: +34 971 435 218