The filtered water is then collected in the MULTIBLOCK® filter underdrains with Laser ShieldTM direct media retention system and sent to the clear well. Tube Clarifier and Integrated Continuous Sludge Recycle Minimizes Influent Click here to enlarge image This coarse-to-fine design with high specific surface area ensures optimum particle capture for production of high-quality potable water.įigure 2. Multi-media filtration allows for a high specific area filter bed in a small filter footprint. This mixed media, which is typically anthracite, sand, and garnet, forms a coarse filter at the top and becomes progressively finer towards the bottom of the filter. Adsorption Clarifier units have been designed to operate at rates of 5 gpm/ft2 to 15 gpm/ft2, achieving turbidity removals of 75% to 95%.Īfter passing through the Adsorption Clarifier system, water then flows through a 30”-deep multi-media gravity filter bed consisting of three or more granular materials differing in size and specific gravity. The Trident adsorption clarification media does not form a floc that can settle, but rather uses a special rolled and scarified buoyant synthetic media. As a result, the system uses 80% less space than a conventional treatment process. Next, the Adsorption Clarifier® system is an upflow treatment process that combines flocculation and clarification in a single-step process. Sludge recirculation further enhances the solids removal process. Two layers of tubes minimize dead space at the ends of each clarifier tank. Click here to enlarge imageįirst, the Trident HS system uses high-rate 60°-inclined tube settlers to provide for a greater effective clarifier settling area. The quartz sleeves used in the Barrier® M system prevent the formation of nitrite ion by cutting off all emission below 240 nm. These four treatment processes individually and collectively provide a consistently high-quality, treated water effluent. The Trident HS multi-barrier approach to water treatment consists of specialized high-rate tube settling, adsorption clarification, multi-media filtration and UV disinfection (Figure 1). The packaged water treatment plant ensures compliance, while providing exceptionally safe drinking water. The system treats raw water with a maximum 400 NTU, 100 true CU, or 400 combined turbidity and color, with iron and manganese of less than 10 ppm. Trident HS Multi-Barrier Packaged Water Treatment Plant Click here to enlarge imageĬollectively, these integrated technologies allow the Trident HS design to provide a minimum of 4-log reduction credit for Cryptosporidium and Giardia. An ultraviolet (UV) disinfection system for final effluent treatment completes the package.įigure 1. This technology integrates a specialized tube clarifier that uses sludge recirculation for increased gross solids removal. The system’s design is based on Siemens’ Microfloc Trident® packaged water treatment technology that consists of adsorption clarification and mixed media filtration. The system removes iron, manganese and phosphorus, and also treats industrial process water. Siemens Water Technologies’ next-generation packaged pre-engineered water treatment plant, the Trident® HS system, provides multi-barrier protection for the treatment of all surface water and groundwater sources with variable water conditions, such as high turbidity, color, and cold water conditions. Integrated technologies, consisting of adsorption clarification and mixed media filtration, ensure compliance of safe drinking water.
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