Depurblock ND SIDECA SYSTEM (New Product)

BIOLOGICAL TREATMENT > Depurblock ND SIDECA SYSTEM (New Product)

INTRODUCTION:

The ND model biodiscs WWTP is a compact unit designed to achieve the elimination of BOD5, S.S. and nitrogen.

The plant has sieving, primary decantation, SIDECA chamber, biological treatment using biodiscs, secondary decanter and cold digestion chamber.

The WWTP can be buried and the entry can be made by gravity. In this case, the inlet rotary sieve can be replaced by another model (e.g. screw sieve).

DESCRIPTION:

First, the discharge is sieved and decanted, eliminating part of the total solids and a fraction of the BOD5. The sludge produced is transported to the digestion area.
The influent is then treated together with a recirculation of water containing nitrates in an anoxic chamber containing a suspended plastic filler with a high specific surface area (a process patented as SIDECA – System of De-Nitrification by Bonded Culture). In this part of the treatment, a fraction of the nitrates recirculated from the exit of the biodisc is released as nitrogen gas into the atmosphere by biological denitrification, in an oxygen-free environment, with the presence of bacteria fixed to the carriers or filler.
The next step in the process is the biodisc: an equipment for the aerobic biological purification of biodegradable waste. It is installed partially submerged in a concrete or metal pitcher, in which a constant water level is available, and in which it turns slowly. In this step the residual BOD5 is refined and the effluent is nitrified.
The next step is the recirculation: A sufficient quantity of nitrogen content in nitrates must be sent to the headwater so that when eliminated, we can guarantee the required values in the final effluent.
Finally, the effluent from the biodisc, which contains a certain concentration of suspended sludge flocs, must be decanted or filtered. A secondary decantation is chosen because of its lower maintenance requirements.
The system also contains a sludge store located in the lower part of the biodisc, where the sludge is cold digested, and a system to purge the secondary decanter floats.

GENERAL DIMENSIONS:

BIOLOGICAL TREATMENT

In the biological treatment of wastewater, a series of processes are generated based on the cultivation of bacterial microorganisms for the elimination of organic matter, nitrogen and phosphorus. It is one of the most common treatments for its simplicity and low cost.

FILTRAMAS, S.A. has a wide variety of equipment for bacterial culture applied to the treatment of urban and industrial wastewater.

Other equipment

TRAVELING SCREENS

Band screens are those equipments, installed in a channel or , which has a series of filtering surfaces in continuous movement. Its mission is to extract the suspended solids of a certain size that accompany the effluent. There are several types of band screens, depending on the characteristics of the effluent and the installation:

SCREENS

The objective of this equipment is to protect the WWTP or pumping well from the possible arrival of large objects capable of causing obstructions in the different units of the installation. This operation consists of passing the waste water through a screen that separates and evacuates the bulky materials dragged along. They will retain large-sized solids such as branches, leaves, paper, tree roots, plastics, wipes, rags, etc., preventing damage and blockages to pumps, valves, pipes and other elements present in subsequent treatment processes of the purification plant.

IN- LINE FILTERS

These devices allow to continue filtering while performing self-cleaning, being especially suitable for those applications where continuous filtering is an important parameter of the process. Filtramas recommends the installation of its FB or FW in-line filters according to the flow and filtration needs.

SIEVES

Filter sieves offer high performance in the solid-liquid separation process. Our range of equipment responds to the different possible needs for each case.

WASTE COMPACTING CONVEYORS

FILTRAMAS, S.A. has a wide range of solutions for the transport and compacting of the waste extracted by its machines, in a clean and discreet. The conveying and compacting systems can be with screws with final draining zone or hydraulic presses.

The conveyor-compactor screws supplied by FILTRAMAS, S.A., coupled together with its equipment, allow us to obtain a totally clean and fair-faced installation. The screw loading openings are designed for coupling to the discharge opening of the extraction equipment (bars movable grilles or screens), and the intermediate spaces are covered by a fairing.

PENSTOCKS

In any water treatment or purification plant, there is a continuous need to isolate or regulate the flow of water in the channels and manholes or holes in walls (wall gates). This function is carried out by means of the placement of gates and cofferdams.

The result of our experience is the establishment of a standardization that determines a satisfactory result with a simple construction. For this reason, Filtramas has been developing the manufacture of penstocks and flashboards.

Filtramas manufactures channel hatches, wall hatches and cofferdams for different applications and uses.

More information

SOLID DRAGS MECHANISMS

The accumulation of solid waste in water treatment requires effective mechanized solutions for its extraction. FILTRAMAS, S.A. has a wide variety of equipment for the dragging of solid waste.