After dealing with algal blooms for years, Santo Domingo Water and Sewage Corporation (CAASD) installed LG Sonic systems to cover the 7 square km Valdesia reservoir earlier this year.

那个平台买彩票,网上平台买彩票合法吗Two months after the start of the project, the results have reportedly exceeded the set targets.

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Dam in Valdesia reservoir, Dominican republic
Dam in Valdesia reservoir that provides drinking water and electricity to Dominican capital Santa Domingo
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Dam in Valdesia reservoir, Dominican republic
Dam in Valdesia reservoir that provides drinking water and electricity to Dominican capital Santa Domingo

Important water source

那个平台买彩票,网上平台买彩票合法吗The Valdesia reservoir is the main drinking water supply for the population of the Dominican capital Santa Domingo, providing drinking water to 4 million inhabitants. 

The reservoir feeds a large hydroelectric plant, therefore, contributes significantly to the country, both in energy production, human consumption and agriculture. 

Chemical free solution

那个平台买彩票,网上平台买彩票合法吗Algal bloom treatment in a water surface as large as the Valdesia reservoir proved challenging for CAASD. The option to use chemical treatment was quickly eliminated. It would be impossible in terms of budget and operations to dose the entire reservoir multiple times a year with chemicals. 

It was also important to not cause any harm to the environment by using potentially harmful chemicals. This led CAASD, in their search for an environmentally friendly solution, to the MPC-Buoy of Dutch supplier LG Sonic.

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Floating MPC Buoy for the control of algal bloom
The MPC Buoy creates an ultrasonic sound barrier that prevents algae to rise to the surface and takes away their capability to grow.
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Floating MPC Buoy for the control of algal bloom
The MPC Buoy creates an ultrasonic sound barrier that prevents algae to rise to the surface and takes away their capability to grow.

Monitoring and treatment

那个平台买彩票,网上平台买彩票合法吗Choosing MPC-Buoy has allowed CAASD to monitor important algae and water parameters in the entire water surface of the Valdesia reservoir. 

那个平台买彩票,网上平台买彩票合法吗The collected data is delivered in real-time to web-based software, allowing water quality specialists from LG Sonic to manage algal blooms from their headquarters, 10.000 kilometers away in the Netherlands. 

那个平台买彩票,网上平台买彩票合法吗CAASD periodical collection of water samples, that are later tested in the laboratory, proved the precision of the data collected with water monitoring.

Water security

Engineer Luis Salcedo, the director of operations of CAASD, said:  ‘We are very happy for having the LG Sonic services, since for us it is a guarantee that the waters that we have in the Valdesia dam will be kept in appropriate conditions’. 

Salcedo emphasised the importance of the reservoir for his company to guarantee the water supply: ‘So we can keep using it and be able to continue satisfying the drinking water demand of approximately 40 percent of these four million people who live in the great Santo Domingo.'

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Award for LG Sonic by Colegio Dominicano de Ingenieros, Arquitectos y Agrimensores (CODIA)
Colegio Dominicano de Ingenieros, Arquitectos y Agrimensores (CODIA) for successfully eliminating algal blooms in Presa de Valdesia. (Photo: Twitter)
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Award for LG Sonic by Colegio Dominicano de Ingenieros, Arquitectos y Agrimensores (CODIA)
Colegio Dominicano de Ingenieros, Arquitectos y Agrimensores (CODIA) for successfully eliminating algal blooms in Presa de Valdesia. (Photo: Twitter)

Lack of light

那个平台买彩票,网上平台买彩票合法吗The MPC-Buoy is a floating, solar powered, platform that provides continuous online water quality monitoring to control algae by using technology that is based on ultrasound, creating an ultrasonic pressure in the top layer of the water.

This ultrasonic sound barrier prevents the algae from rising to the surface and absorbing light for photosynthesis. Therefore, algae are no longer capable of growing further. The algae will die while the cell wall remains intact, preventing the release of toxins from the algae into the water. The algae will sink to the bottom of the water reservoir and are degraded by the bacteria present.

The data logger is the brain of the MPC-Buoy, handling all data communication between the system and the water quality software MPC-View. Data collected from the ultrasonic transmitters and water quality sensors is processed in real-time and sent to the server over GSM/GPRS telemetry quadband.

Luis Salcedo, Director of Operations of Santo Domingo Water and Sewage Corporation (CAASD), explains why his company purchased 47 MPC-buoys and how they are operated.
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