The Dual Surface Baffle has a wedge-shaped configuration with identical upper and lower surfaces. The upper surface is identical to the Stamford Baffle 2.0® design, using the 30° inclination angle and the same algorithm to determine the baffle’s horizontal projection based on clarifier diameter.
There are two significant maintenance and operations issues that can affect clarifier performance. Algae growth in the clarifier effluent launder channel Odors generated in the clarifier as the effluent breaks over the clarifier weir. Both of these problems can be dealt with effectively by covering the effluent launder channel with one of several types of Launder Covers.
It is estimated that more than 80% of the odors in the clarifier are produced when effluent breaks over the weir and flows into the launder channel. NEFCO Odor Covers are sealed systems designed to contain these odors and/or operate in conjunction with scrubber systems that draw the trapped gases off and treat them to eliminate the odor.