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Introduction
Flocculation integrated flotation treatment of fluorine-containing wastewater is an effective wastewater treatment method. With the continuous improvement of environmental protection requirements, the treatment of fluorine-containing wastewater has received more and more attention. Flocculation integrated flotation treatment of fluorine-containing wastewater has the advantages of good treatment effect, simple operation, small footprint, low operating cost, etc., and has broad application prospects. In the future wastewater treatment field, Flocculation integrated flotation treatment technology will be more widely used and promoted.
Technical Data
| Modle | Capacity | Dissolved air volume | Power KW | Dimension | DN (Nozzle list) | |||||||
| m³/h | m³/h | Reflux pump | Aerator | Skimmer | Blender | Pool diameter(m) | D/D1 | H/H1 | iniet (A) | Outlet (B) | Sludge outlet (C) | |
| WQF-2 | 15～20 | ～7 | 2.2 | 1.5 | 0.75 | 1.5 | Φ2 | 3.4/2.0 | 4.2/2.5 | 100 | 100 | 100 |
| WQF-3 | 30～40 | ～13 | 5.5 | 1.5 | 0.75 | 1.5 | Φ3 | 4.8/3.0 | 4.2/2.5 | 150 | 150 | 100 |
| WQF-4 | 50～80 | ～15 | 7.5 | 1.5 | 0.75 | 1.5 | Φ4 | 5.9/4.0 | 4.2/2.5 | 200 | 200 | 100 |
| WQF-5 | 80～100 | ～30 | 11 | 2.2 | 1.1 | 2.2 | Φ5 | 6.9/5.0 | 4.2/2.5 | 300 | 300 | 125 |
| WQF-6 | 100～150 | ～40 | 11 | 2.2 | 1.1 | 2.2 | Φ6 | 7.9/6.0 | 4.2/2.5 | 300 | 300 | 125 |
| WQF-7 | 150～180 | ～60 | 15 | 3 | 1.1 | 2.2 | Φ7 | 8.9/7.0 | 4.2/2.5 | 350 | 350 | 150 |
| WQF-8 | 200～250 | ～70 | 22 | 4 | 1.5 | 3 | Φ8 | 9.9/8.0 | 4.7/3.0 | 400 | 400 | 150 |
| WQF-9 | 250～300 | ～90 | 30 | 4 | 1.5 | 3 | Φ9 | 10.9/9.0 | 4.7/3.0 | 400 | 400 | 150 |
| WQF-10 | 300～400 | ～110 | 30 | 4 | 1.5 | 3 | Φ10 | 11.9/10.0 | 4.7/3.0 | 450 | 450 | 150 |
| WQF-11 | 400～500 | ～150 | 45 | 5.5 | 2.2 | 3 | Φ11 | 12.9/11.0 | 4.7/3.0 | 450 | 450 | 200 |
| WQF-12 | 500～625 | ～200 | 45 | 5.5 | 2.2 | 4 | Φ12 | 13.9/12.0 | 5.7/4.0 | 450 | 450 | 200 |
| WQF-13 | 625～750 | ～240 | 55 | 5.5 | 2.2 | 4 | Φ13 | 14.9/13.0 | 5.7/4.0 | 500 | 500 | 200 |
| WQF-14 | 800～950 | ～280 | 55 | 5.5 | 2.2 | 4 | Φ14 | 15.9/14.0 | 5.7/4.0 | 500 | 500 | 200 |
| WQF-15 | 1000～1150 | ～300 | 55 | 5.5 | 2.2 | 4 | Φ15 | 16.9/15.0 | 5.7/4.0 | 600 | 600 | 200 |
| WQF-16 | 1250～1400 | ～300 | 55 | 5.5 | 2.2 | 4 | Φ16 | 17.9/16.0 | 5.7/4.0 | 700 | 700 | 200 |
| WQF-18 | 1500～1800 | ～480 | 75 | 7.5 | 3 | 4 | Φ18 | 19.9/18.0 | 5.7/4.0 | 700 | 700 | 250 |
Treatment principle
Flocculation: Add flocculants to fluoride-containing wastewater to make the fluoride ions in the wastewater react chemically with the flocculants to form larger flocs. Flocculants can adsorb fluoride ions and other impurities in the wastewater and precipitate them.
Flotation: By introducing tiny bubbles into the wastewater, the flocculants are combined with the bubbles to form flotations. The density of the flotation is less than that of water and it will float on the water surface, thus achieving solid-liquid separation.
Treatment process
Wastewater pretreatment: Preliminary filtration of fluoride-containing wastewater to remove larger particles and impurities to prevent clogging of subsequent treatment equipment.
Flocculation reaction: Add flocculants to the pretreated wastewater and stir evenly to make the flocculants fully react with fluoride ions to form flocs.
Flotation treatment: Pass the flocculated wastewater into the flotation equipment and introduce tiny bubbles at the same time. The bubbles combine with the flocculants to form flotations, which float on the water surface.
Solid-liquid separation: Scrape the floating body from the water surface to achieve solid-liquid separation. The separated clean water can be further treated or directly discharged.
Sludge treatment: The sludge generated during the flotation treatment contains a high concentration of fluoride ions and other impurities, which requires further treatment. Dehydration, drying and other methods can be used to treat the sludge into solid waste for safe disposal.
Technical advantages
Good treatment effect: Flocculation integrated flotation treatment of fluoride-containing wastewater can effectively remove fluoride ions and other impurities in the wastewater, so that the effluent water quality meets the national emission standards.
Simple operation: Flocculation integrated flotation treatment is simple to operate, highly automated, and stable and reliable.
Small footprint: Flocculation integrated flotation equipment has a compact structure and small footprint, and is suitable for wastewater treatment projects of various sizes.
Low operating cost: This treatment method has low operating costs, low consumption of flocculants and bubbles, and low energy consumption.
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