1.0System Grouphttps://tubi.net/frfirst rain water treatment plantsrich600338<blockquote class="wp-embedded-content" data-secret="fmIHAi94Y0"><a href="https://tubi.net/fr/first-rain-water-treatment-systems-2">Systèmes de traitement des eaux de première pluie</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://tubi.net/fr/first-rain-water-treatment-systems-2/embed#?secret=fmIHAi94Y0" width="600" height="338" title="« Systèmes de traitement des eaux de première pluie » — System Group" data-secret="fmIHAi94Y0" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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https://tubi.net/wp-content/uploads/2026/01/IMPIANTI-DI-TRATTAMENTO-ACQUE-DI-PRIMA-PIOGGIA.png987568Rainwater runoff or first flush rainwater is precipitation that falls on impermeable surfaces (asphalt, roofs, courtyards). This water is particularly polluted because it washes away and transports substances that have accumulated on these surfaces (oils, heavy metals, hydrocarbons) during dry periods