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The Envirex® brand, Trans-Flo® rectangular activated sludge clarifier has combined three proven technologies to exploit the process benefits of each. In one basin is found a Rim-Flo® peripheral feed and takeoff clarifier, a Tow-Bro® hydraulic sludge remover, and a rectangular chain and scraper collector.
Trans-Flo® rectangular clarifiers can be designed with greater mass loading and flow capacities in much longer and wider basins. Additionally, the secondary effluent is much lower in suspended solids, although it performs in a smaller space and at lower construction and equipment costs than an average clarifier. The design assures a fresher, concentrated sludge, reduced aeration requirements and lower effluent solids.
Basic Process:
1. Influent is introduced through a tank-length channel.
2. The downward circular flow uses the full tank volume and eliminates short circuiting while solids drop uniformly out of suspension.
3. Solids dropped to the floor are moved by the chain and flight mechanism to the sludge removal headers, which are spaced uniformly across the tank.
4. The treated water is circulated upwards and out the effluent channel.
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