Product Description
PRODUCT INTRODUCTION
Denitrification deep bed filter organically combines denitrification and deep bed filtration function, and is a processing unit integrating biological nitrogen removal and filtration function. After the water outlet of the secondary sedimentation tank, it can be fully combined with other treatment units, and has various functions such as nitrogen removal, phosphorus removal and suspended matter removal.
Product Feature
The denitrification deep bed filter uses 2 ~ 3mm quartz sand as the hanging film hanging medium of denitrification organisms, and the filter can ensure that the effluent SS is less than 5mg / L. Large specific surface area of 2 to 3 mm medium. In the backwash cycle interval, 7.3kg of solid suspension can be trapped per m2 of filtration area. The high characteristic of solid load greatly extends the filter filtration cycle and reduces the number of backwashes. The denitrification filter is backwashed by gas and water. Backwash sewage is generally returned to the front section biological treatment unit. Due to the interception performance of the high load of the filter bed solid, the backwashing water shall not exceed 4% of the water quantity of the treatment plant.
Using an appropriate amount of high-quality carbon source, the denitrifying bacteria attached to the surface of quartz sand to convert NOx-N into N2 to complete the nitrogen removal reaction process. In the process of denitrification, because nitrate nitrogen is constantly reduced to nitrogen, a large amount of nitrogen will gather in the deep bed filter, which will make the sewage run around the medium, which enhances the contact between microorganisms and water flow, and also improves the filtration efficiency. However, when excessive nitrogen bubbles accumulate in the pool, it will cause head loss, so the nitrogen must be dispersed and the head restored several times a day.
Product Parameters
ADVANTAGES OF DENITRIFICATION DEEP BED FILTER
Gravity flow water inflow mode of denitrification deep bed filter: effectively remove solid suspended matter without additional water purification / fine filter. Denitrification process and filtration process, single pool completion, get twice the result with half the effort;
| Reverse digestion deep bed filter can complete the denitrification process and filtration process by a single pool, and can remove SS, TP and TN at the same time; |
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Fully meet the following effluent water quality standards: NO3-N 1 MG/L, TN 3 MG/L, NTU 2, and SS 5 MG/L. |
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