Project information
Project: WWTPI Feed Sector
País: Spain
Año: 2023
Caudal: Q. Maximum 50m3/h.
Equipos: Manual screen EasyTech®Nw10 + Coarse screen SolidTech®Nw30S (1 pc) + Fine screen FineTech®Nw60 (1 pc).
Netwater Technology, has carried out the supply of a complete PRETREATMENT consisting on the following equipment:
- EasyTech®Nw10 manual screen, to treat a maximum Q. of 50m3/h, with a 50mm passage span, main construction material in AISI-304L.
- Coarse screen SolidTech®Nw30S, for treating Q. Max. 50m3/h, with 20mm spacing, main material of construction in AISI-304L.
- Fine screen FineTech®Nw60, for treatment of Q. Max. 50m3/h, with a 3mm spacing, main material of construction in AISI-304L.
The main objective of our client was to design a new pretreatment system for their current WWTPI, as the current one was very deficient and was causing continuous failures in the different pumps of the downstream processes and in turn a deficient operation and reduced performance in the rest of the downstream systems. They needed efficient pre-treatment equipment capable of filtering the waste progressively (retaining, extracting and discharging the waste into a container):
-At present they had a ladder type screen, which was NOT capable of transporting the waste to the discharge area (it is a type of technology that works by means of an elliptical movement made up of a fixed and a mobile mesh, which are always submerged and difficult to access for cleaning), This means that they become impregnated with grease and prevent the waste from being lifted and sliding to the bottom of the channel, the sieve collapsed and the water and waste ended up overflowing and this waste caused serious blockages and continuous breakdowns in the pumps, in very cold weather, the grease solidifies, producing greater resistance in the elliptical movement, causing the main motor to break..
-By installing our Manual EasyTech®Nw10 Grid, we achieve a first filtering, being able to retain waste of all types (bottles, cans, rags, etc…), by installing this equipment we manage to protect the following coarse and fine roughing equipment.
– By installing our Automatic Screen SolidTech®Nw30S, we achieve a second filtering, being able to retain waste of all types (wipes, compact blocks of grease, leaves, etc…), by installing this equipment we achieve a roughing of coarse waste, protecting the roughing of fine waste.
–By installing the FineTech®Nw60 Fine Screen, which is capable of “retaining, elevating and discharging” (seeds, grease, etc.), contained in the water that they filter from their production processes).
–Netwater Technology has had to make a customised design of the equipment to fit the length of the existing civil works channel and create a system of extendable supports for the central supports of the screen and sieve.
After installing our EasyTech®Nw10 Manual Screen + SolidTech®Nw30S Automatic Screen + FineTech®Nw60 Fine Screen, several serious problems have been solved, such as lower maintenance costs for pump repairs, lower operating costs, as the downstream systems now receive water with a lower PPM residue load and can maximise their performance.
Netwater Technology, by means of this supply, has managed to meet the needs of our client, who has been very satisfied with our service.
In order for you to see the scope of the project, we provide you with some images of the equipment installed on site.
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