发明名称 |
Method of treating water by ballasted flocculation/settling, which includes a continuous measurement of the ballast, and corresponding installation |
摘要 |
A method for treating water in a ballasted flocculation system comprises directing water into a ballasted flocculation zone and adding ballast and a flocculation reagent to the water to form a water-floc mixture. The water-floc mixture is directed into a settling zone to form treated water and sludge containing ballast. The ballast is then directed to a recirculation line where the ballast is recirculated to the ballasted flocculation zone. The method further includes determining the ballast concentration and comparing the ballast concentration with a predetermined threshold value. The rate at which ballast is recirculated to the ballasted flocculation zone is adjusted based on the determined ballast concentration and the predetermined threshold value. A ballasted flocculation system for treating water comprises a ballasted flocculation zone, a water inlet for directing water into the ballasted flocculation zone, and a flocculation reagent inlet for directing flocculation reagent into the ballasted flocculation zone. The system includes a settling zone for separating treated water from sludge containing ballast and a recirculation line for recirculating ballast from the settling zone to the ballasted flocculation zone. A first ballast inlet is operatively connected to the recirculation line for directing ballast into the ballasted flocculation zone. Finally, the system includes a sensor for measuring a parameter of ballast in the system. |
申请公布号 |
US8092688(B2) |
申请公布日期 |
2012.01.10 |
申请号 |
US20070375725 |
申请日期 |
2007.07.25 |
申请人 |
SAUVIGNET PHILIPPE;BEAUDET JEAN-FRANCOIS;GUILLOT SONIA;URSEL VALERY;OTV SA |
发明人 |
SAUVIGNET PHILIPPE;BEAUDET JEAN-FRANCOIS;GUILLOT SONIA;URSEL VALERY |
分类号 |
C02F1/52 |
主分类号 |
C02F1/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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