Sogeiva

Sogeiva

Application : Water supply and Sanitation

The SOGEIVA is an Italian company involved in the environmental sector. It manages the complete water cycle for the province of Varese. In the waste water sector, it manages approximately 90 communes, bringing together some 800,000 inhabitants. Currently, the SOGEIVA operates 19 waste water plants and 25 waste water lifting stations. With respect to drinking water, 21 communes are managed, totaling approximately 60,000 inhabitants and 3 million m³ of water distributed each year.

Aims of remote monitoring and control

Considering the extent of the drinking and waste water networks operated by the SOGEIVA, this latter rapidly felt the need to implement a remote monitoring system. After an initial experience with a simple remote alarm system during the '90s, the SOGEIVA decided to upgrade to a genuine remote monitoring and control in 1999. Following a 2-year experimentation period, the company finally opted for SOFREL equipment. The system's objectives were as follows:

To provide 24/7 monitoring of managed installation operation.
To immediately transmit any alarms to staff on stand-by duty in order to guarantee minimum on-site maintenance delays.
To ensure respect for the environment, with particular respect to water released into lake Varese.
To optimize the operating and maintenance costs of the hydraulic installations.

The remote monitoring and control system implemented

I/ The drinking water remote monitoring and control network

The remote monitoring and control system implemented on the drinking water system comprises 1 Sofrel PCWin Supervisory master station installed at the SOGEIVA head offices in Varese and 9 remote terminal units (Sofrel S50 and BOX) installed at the various sites to monitor (boreholes, pumping stations, tanks, etc.).

Approximately 150 data are monitored (pump start-ups / shutdowns, operating times, level, flow rate, pressure measurements, etc.). The remote terminal units communicate with the PC either by PSTN or by GSM. All remote terminal units are fitted with voice server boards in order to directly transmit the alarms by voice messages to the mobile phones of stand-by staff.

II/ The waste water remote monitoring and control network

The remote monitoring and control system for the waste water network comprises 1 PCWin Supervisory master station installed at the Monvalle waste water plant and 2 S50s installed at the Monvalle and Laveno waste water plants. Approximately 250 data are monitored. The S50s communicate with the supervisory master station via PSTN. Alarms are directly transmitted by voice synthesis to the stand-by staff.

Results

The SOGEIVA is highly satisfied with the results of the implemented remote monitoring and control. The major advantages stated are as follows:

Real-time notification of problems occurring on the network, thus allowing extremely rapid initiation of maintenance operations.
A global and instantaneous view of the whole network, whereas previously, all sites needed to be inspected individually.
Savings, of power in particular (by modulating the pumping periods) and of staff travel costs.
Maintenance assistance through equipment operating time follow-up.
Optimization of water resource management, in particular through groundwater table levels, thus avoiding drying them out and pumping sand which damages the pumps.

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