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System and method for efficiently intercepting and purifying nitrogen and phosphorus in rural domestic sewage

A technology for domestic sewage and water purification system, applied in biological water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc. Standard and other issues, to achieve the effect of accelerating growth rate, reducing nitrogen and phosphorus content, and fast growth rate

Inactive Publication Date: 2020-06-26
CHENGDU TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a water purification system and water purification method for efficiently intercepting nitrogen and phosphorus in rural domestic sewage. The water purification system and water purification method can effectively solve the problems existing in existing water purification methods. The removal efficiency of total nitrogen and total phosphorus in sewage is low, and the total nitrogen and total phosphorus in purified water cannot meet the discharge standards.

Method used

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  • System and method for efficiently intercepting and purifying nitrogen and phosphorus in rural domestic sewage
  • System and method for efficiently intercepting and purifying nitrogen and phosphorus in rural domestic sewage
  • System and method for efficiently intercepting and purifying nitrogen and phosphorus in rural domestic sewage

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a water purification system with high efficiency interception of nitrogen and phosphorus in rural domestic sewage is provided, including a primary filter tank 1, a primary ecological tank 2, a secondary ecological tank 3, and a retention tank 4, which are sequentially connected from the upper part. 1. There is an inlet pipe 5 at the lower part, and a coarse sand layer 6, a fine sand layer 7 and an active particle layer 8 are arranged in the primary filter tank 1 from bottom to top. Optimally, the thickness of the coarse sand layer 6 is 30 cm. The particle size of the fine sand layer 7 is 5 mm, the thickness of the fine sand layer 7 is 20 cm, the particle size of the fine sand is 2 mm, the thickness of the active particle layer 8 is 20 cm, and the particle size of the active particles is 5 mm.

[0037] Orifice plates 9 are set in the first-level ecological pool 2 and the second-level ecological pool 3, and different kinds of economic plants are pl...

Embodiment 2

[0045] Such as figure 1 As shown, a water purification system with high efficiency interception of nitrogen and phosphorus in rural domestic sewage is provided, including a primary filter tank 1, a primary ecological tank 2, a secondary ecological tank 3, and a retention tank 4, which are sequentially connected from the upper part. 1. There is an inlet pipe 5 at the lower part, and a coarse sand layer 6, a fine sand layer 7 and an active particle layer 8 are arranged in the primary filter tank 1 from bottom to top. Optimally, the thickness of the coarse sand layer 6 is 40 cm. The particle size of the fine sand layer 7 is 7 mm, the thickness of the fine sand layer 7 is 30 cm, the particle size of the fine sand is 3 mm, the thickness of the active particle layer 8 is 30 cm, and the particle size of the active particles is 8 mm.

[0046] Orifice plates 9 are set in the first-level ecological pool 2 and the second-level ecological pool 3, and different kinds of economic plants are pl...

Embodiment 3

[0054] Such as figure 1 As shown, a water purification system with high efficiency interception of nitrogen and phosphorus in rural domestic sewage is provided, including a primary filter tank 1, a primary ecological tank 2, a secondary ecological tank 3, and a retention tank 4, which are sequentially connected from the upper part. 1. There is an inlet pipe 5 at the lower part, and a coarse sand layer 6, a fine sand layer 7 and an active particle layer 8 are arranged in the primary filter tank 1 from bottom to top. Optimally, the thickness of the coarse sand layer 6 is 40 cm. The particle size of the fine sand layer 7 is 6 mm, the thickness of the fine sand layer 7 is 25 cm, the particle size of the fine sand is 2 mm, the thickness of the active particle layer 8 is 30 cm, and the particle size of the active particles is 8 mm.

[0055] Orifice plates 9 are set in the first-level ecological pool 2 and the second-level ecological pool 3, and different kinds of economic plants are pl...

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Abstract

The invention discloses a system and a method for efficiently intercepting nitrogen and phosphorus in rural domestic sewage and purifying water. The system comprises a primary filter tank, a primary ecological tank, a secondary ecological tank and an interception tank which are sequentially communicated from the upper part, wherein a water inlet pipe is arranged at the lower part of the primary filter tank, a coarse sand layer, a fine sand layer and an active particle layer are sequentially arranged in the primary filter tank from bottom to top, pore plates are arranged in the primary ecological tank and the secondary ecological tank, and different types of economic plants are planted in the primary ecological tank and the secondary ecological tank; a soil layer, an interception layer, a quartz sand layer and an activated carbon layer are sequentially arranged in the interception pond from top to bottom, aquatic plants are planted in the soil layer, and a drainage pipe is arranged on the lower portion of the interception pond. By adopting the water purification system and the water purification method, total nitrogen and total phosphorus in the sewage can be effectively removed, sothat the purified water body meets the discharge standard.

Description

Technical field [0001] The invention belongs to the technical field of sewage treatment, and specifically relates to a water purification system and a water purification method for efficiently intercepting nitrogen and phosphorus in rural domestic sewage. Background technique [0002] As the country attaches importance to point source pollution caused by industrial sewage discharge, agricultural non-point source pollution and rural domestic sewage pollution have gradually become the main source of eutrophication of river water bodies. The high nitrogen and phosphorus content in the water body causes a large number of algae to grow, causing a large number of aquatic plants and fish to die. Rural domestic sewage is the sewage produced by washing, bathing, cooking in the kitchen, feces and washing of households in villages and towns. Rural domestic sewage has the characteristics of wide dispersion, multiple sources, rapid growth, complex sewage composition, and large changes in wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/283C02F3/32C02F3/34C02F9/00
Inventor 景江范天斌张欣马海曲干彭靖潘祖浩牟潇丽袁壮吴柟岚卜昕宇王路阳火补此聪
Owner CHENGDU TECH UNIV
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