| 摘要 |
<p>Water is treated by adding a polyelectrolyte and a filter aid to the water. The introduction of these additives permits the particulates within the water to agglomerate with one another and to agglomerate with the filter aid. The water is then directed through a filter, where the agglomerated particulates are filtered out. The filter is then backflushed with a fluid to remove the agglomerated particulates. In accordance with one aspect of this invention, the amount of polyelectrolyte added to the water is determined by a controller which enters measurements from a turbidity sensor and a conductivity sensor into an algorithm to determine the amount of polyelectrolyte needed to aggregate a targeted amount of particulates in the water stream.</p> |
