Les Esglésies WWTP

Netwater Technology, has carried out the complete installation of a fines screen with the filtration mesh made up of a Johnson triangular profile with a 2mm pitch, for the retention and extraction of waste:

• Fine screen RevTech®Nw42, to treat a Q=10m3/h, 2mm pitch, main construction material in AISI-304L.
• We´ve designed a metallic channel to conduct the water to be treated, customised to the existing civil works.
• System of guides and a mobile waste collection basket for easy extraction.

The main objective of our client was to replace the current vertical screw sieve, which had not been working since 2008, with a more efficient technology:

– They currently had a vertical screw screen with compaction head and Johnson mesh filtration area installed in 2008, which has never worked optimally, it was continuously clogged, the solids were stuck in the compaction head, producing a collapse and clogging of the entire roughing system. The consequences of the deficient roughing system was that the screen overflowed and the solids passed to the next process without being filtered.

– With the installation of our RevTech® Nw42 fine screen, a different and more efficient technology has been installed. The screen supplied has a greater capacity to retain waste due to its new 2mm clearance, which is extracted and deposited in a basket, which the operators extract through a system of guides, using a manual winch.

Netwater Technology, through this turnkey installation, has been able to meet the needs of our client. This had its particularities, which was a challenge for our technical team, being an existing site and designed to work with a vertical screw type screen, there was no civil works channel for the installation and conduction of the water to be treated, where our standard fine screen could be installed. Netwater offered a tailor-made solution. NETWATER carried out the commissioning of the equipment, the equipment and parts fitted perfectly, as shown in the images.