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Intensive denitrification nitrogen removal and phosphorus removal percolation bed system

A technology of nitrogen and phosphorus removal and percolation bed, which is applied in the field of water pollution control and treatment, can solve the problems of limited phosphorus removal effect and loss of phosphorus removal function, and achieve the effect of solving blocked channels, high adsorption capacity, and increasing treatment load

Active Publication Date: 2019-01-01
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the iron-carbon micro-electrode phosphorus removal effect is limited, especially when the iron-carbon material is hardened and oxidized, the phosphorus removal function will be lost

Method used

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  • Intensive denitrification nitrogen removal and phosphorus removal percolation bed system

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Experimental program
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Embodiment 1

[0040] Such as figure 1 As shown, the enhanced denitrification, denitrification and phosphorus removal diafiltration bed system of the present invention includes a water distribution system and a diafiltration bed, and is characterized in that the water distribution system introduces water into the diafiltration bed;

[0041] The percolation bed includes a percolation bed main body 3 and a soil cover layer 5, a water distribution layer 6, an enhanced dephosphorization layer 8, an enhanced denitrification reaction layer 9, Deep purification layer 10 and drainage layer 11;

[0042]The water distribution layer 6 is distributed with water distribution pipes 7, the water distribution pipes 7 evenly distribute water in the water distribution layer 6, and the water distribution pipes 7 are connected to the water distribution system.

[0043] In the water distribution system, the reservoir 1 is connected to the main body 3 of the percolation bed through the water distribution pipe 7 ...

Embodiment 2

[0052] The enhanced denitrification denitrification and phosphorus removal percolation bed system of the present invention, such as figure 1 As shown, it includes a water distribution system and a percolation bed. The reservoir 1 is connected to the main body 3 of the percolation bed through the water inlet pump 2. The main body 3 of the percolation bed is a box body with a length, width and height of 2m×1.5m×1.2m. Infiltrate from top to bottom, plant vegetation 4 above the soil cover layer 5, the plant selects canna, and the soil cover layer covers the pastoral soil with a thickness of 5cm.

[0053] What the water distribution layer 6 is filled with is river sand and pebbles with a thickness of 10cm, and there are perforations on the water distribution pipe 7 among them, the diameter of the hole is 1cm, and the material is a PVC pipe.

[0054] Down is the enhanced phosphorus removal layer with a thickness of 25cm. The enhanced phosphorus removal layer 8 is composed of gravel,...

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Abstract

The invention discloses an intensive denitrification nitrogen removal and phosphorus removal percolation bed system, which belongs to the technical field of water pollution control and governing. Theintensive denitrification nitrogen removal and phosphorus removal percolation bed system comprises a water distribution system and a percolation bed, and the water distribution system guides water into the percolation bed; the percolation bed comprises a percolation bed main body as well as a soil covering layer, a water distribution layer, a reinforced phosphorus removal layer, a reinforced nitrogen removal reaction layer, a deep purification layer and a water discharging layer which are successively arranged in the percolation bed main body from top to bottom; and the water distribution layer is provided with water distribution pipes, the water distribution pipes uniformly distribute the water on the water distribution layer, and the water distribution pipes are connected with the waterdistribution system. The nitrogen is removed by virtue of iron-carbon micro-electrolytic chemical reaction and solid carbon-source reinforcing biological manner, the phosphorus is removed by couplingiron carbon and high-capacity phosphorus absorption material, a purpose of synchronously efficiently removing the nitrogen and phosphorus can be achieved, and the intensive denitrification nitrogen removal and phosphorus removal percolation bed system has the advantages of no secondary pollution, blockage resistance, high load, and low operation cost.

Description

technical field [0001] The invention belongs to the technical field of water pollution control and treatment, and in particular relates to a percolation bed system for strengthening denitrification, denitrification and dephosphorization. Background technique [0002] Nitrogen and phosphorus pollution is an important cause of water eutrophication, and efficient removal of nitrogen and phosphorus is one of the problems faced by many polluted water bodies. The percolation bed system can remove organic pollutants, suspended solids and nitrogen and phosphorus in water through the adsorption and retention of fillers and the action of microorganisms. Biological denitrification is an effective method for removing nitrogen in polluted water by the percolation bed system. The biological removal of nitrogen includes nitrification and denitrification processes, and denitrification requires sufficient organic carbon sources to complete. However, many polluted water bodies or urban sewag...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/10
CPCC02F1/281C02F3/305C02F3/32C02F9/00C02F2101/105
Inventor 全向春陈亮
Owner BEIJING NORMAL UNIVERSITY
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