| Work Detail |
The Government of La Pampa authorized the call for public tender for the Winifreda "Sewage Drainage Network and Treatment Plant" with a budget of approximately $1,133 million.
Sanitary services for drinking water and sewerage with treatment plants are fundamental in societies because they collaborate in improving the quality of life, the health of people and the care of the environment. The Winifreda work had a pre-award that was observed because it was not convenient for the State, which requested a new call for bids, this time the project was modified by changing the location of the main pumping station.
The town of Winifreda has "a complete infrastructure of public services and the sanitation works planned in the place are basically made up of a network of sewage collectors, manholes, pumping wells, conduction to the plant and a compact treatment plant," they indicated. from the Executive. «It has been planned to enable a network of collectors with a capacity for 1,311 household sewage connections with options to be expanded. In all cases, the pipes of the collector networks will be made of PVC Integrated Elastic Joint. At this stage, it is planned to install approximately 23,500 meters of Ø160mm diameter collectors and 1,000 meters of Ø 200mm”, they added.
For the project, two stages of execution were contemplated from the construction point of view. «The first stage consists of supplying the sewage network to the urban area of ??the town. The second stage contemplates the rest of the town considering the connections of built lots, vacant lots and a percentage of the plots and fifths of the urban ejido, "they explained.
During this stage of operation, three pumping stations have been planned, one is located in the Northwest of the town, the second in the Northeast, each of the two named stations raise the effluents from these low areas to a manhole that they discharge in a section to gravity and a last pumping station (EB3) that was relocated in relation to the initial project. In this case, the Municipality resolved to acquire a piece of land on the same local road that leads to the Treatment Plant. It is in this place where the liquids coming from the entire network of collectors are raised to take them to the site destined for the treatment plant.
Drive sections.
The discharge sections from the pumping stations will consist of Class 6 PVC pipe. Approximately 440m of Ø 110mm pipe, 1,800m of Ø 160mm pipe and 1,800m of Ø 200mm pipe are planned, with the corresponding air valves. and drainage in its trace. The liquid treatment system consisting of a Modular Treatment Plant with MBBR (Moving Bed Bio Reactor) system. The plant will be designed with modules suitable for treating liquids for 1,750 inhabitants, in order to increase these based on the connections made over time, until it covers a future population of 3,500 inhabitants.
In total, 2 modules will be installed, one module in operation and the second module will be delivered complete but the electromechanical parts (pumps, etc.), will be protected and will be installed when the number of homes connected to the system so require. Finally, the Municipality will be provided with an unblocking equipment mounted on a 4-wheel chassis with a tow hitch, which allows correct operation and maintenance of the network.
The treated effluent will go to a forestry field, which will compensate for the loss of plant biomass due to the clearing necessary for the execution of the work, and will facilitate the generation of favorable habitats for the avifauna of the region (nesting, feeding and refuge areas). and will give visual enhancement to the panoramic environment of the sewage treatment plant.
It is estimated that during the execution of the work some seventy people will be employed. The estimated population benefited by this infrastructure work amounts to 2,800 people. |
