L’Ampolla ozonation plant
L’Ampolla ozonation plant
Drafting the works project and performing the construction works of an ozonation plant at the Drinking Water Treatment Plant of L’Ampolla, Tarragona.
Client:
Consorci d’aigües de Tarragona
Location:
Tarragona
Period:
From September 2015 to September 2016
Type of work:
Hydraulic Infrastructures
Typology:
Drinking water treatment plant
Budget:
4,598,300.02 € (ex-VAT)
Execution of the necessary elements to provide the Drinking Water Treatment Station of L’Ampolla with the necessary equipment and installations to dose ozone as an oxidating agent
both in preoxidation as well as in the intermediate phase prior to filtration in the existing active carbon. Ozone generation shall be performed using oxygen as a precursor element. The installation will have capacity to treat 4.2 m3/s of water.
DETAILS
Technical data
Inspection pits:
Inspection pits to measure input and output flow: replacement of the flow meter, from ultrasound to electromagnetic.
Pre-ozonation:
Ozone generation, three (2 + 1) generators of 5,998kg O3 / h in 12% unit capacity.
Ozone transport in DN50 pipes with the relevant valves, flow meters and high concentration analysers, to regulate flows and doses.
Cooler installation, three (2 + 1) with 72kW frigorific power capacity.
Ozone injection and dispersion by Stati Flo static mixer.
A sealed contact room of 420 m3, equipped with an excess-low-pressure valve and an analyser for residual ozone in the water.
Ozone destroyer, one with 70 Nm3O3 / h capacity.
Post ozonation:
Ozone generation, three (2 + 1) generators of 10,975 kg O3 / h with 12% unit capacity.
Ozone transport in DN50 pipes with the relevant valves, flow metres and high concentration analysers, to regulate flows and doses.
Cooler installation, three (2 + 1) with 111kW frigorific power capacity.
A sealed contact room of 3,150 m3, divided into 2 sub-chambers with 3 compartments each one.
Ozone dosage by network of 44 ceramic disc diffusers for each 2 lines, of 117 mm.
Two ozone destroyers of 115 Nm3O3 / h unit capacity.
Oxygen storage and dosage:
Vertical cryogenic tank of 30,000 kg of liquid oxygen and subsequent gasification.
Rack of 10 mx 6 m to support the cryogenic tanks and gasification lines.
Hypochlorite:
Two HDPE storage tanks of 25,000 l each.
Retention vessel 8 m long, 4.5 m wide and 1 m high.
A sodium hypochlorite discharge pump of 25 m3 / h.
Two dosage pumps (one of them reserve) membrane type 500 l / h.
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