Artificial ecological wastewater treatment unit in expressway service areas

A technology for artificial ecology and wastewater treatment, applied in biological water/sewage treatment, sustainable biological treatment, neutralized water/sewage treatment, etc., can solve problems such as low treatment efficiency, unmanned management, and large floor area The effect of wide application range, wide application range and low management cost

Inactive Publication Date: 2010-03-03
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the ammonia nitrogen and phosphate treated by the biological contact oxidation method cannot stably reach the standard; and although the A/O method has the function of denitrification and phosphorus removal, the performance of resisting changes in water quantity and quality is poor
In addition, the single biological contact oxidation method and A/O method both require units such as secondary sedimentation tanks, which o...

Method used

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  • Artificial ecological wastewater treatment unit in expressway service areas
  • Artificial ecological wastewater treatment unit in expressway service areas
  • Artificial ecological wastewater treatment unit in expressway service areas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An artificial ecological wastewater treatment unit in a highway service area, which uses ecological concrete materials to form a layered unit, which is divided into a plant layer 3, an artificial filler layer 2 and an artificial composite filter material cushion layer 1 from top to bottom, and is characterized in that the bottommost artificial The thickness of the composite filter material cushion is 4cm, and the diameter is 1cm. The crushed stone, construction waste, slag and clay particles are mixed, and the volume mixing ratio is 6:2:1:1;

[0032] The artificial filler layer is made of raw soil and wood chips, the volume mixing ratio is 6:4, and the thickness is 4cm; the plant layer is composed of rush grass, bahia grass 12 clumps / square meter, ryegrass, xiangpu 18 clumps / square meter . The void rate of the artificial composite filter material cushion of the artificial ecological wastewater treatment unit in the highway service area is 15%, and the water permeability...

Embodiment 2

[0038] A method for sewage treatment by an artificial ecological wastewater treatment unit in a highway service area, characterized in that the process flow is:

[0039] Centrally collect the sewage into the sewage tank, discharge it to the sewage treatment center through the pipeline, and the subordinate sewage treatment center

[0040] It is composed of at least one artificial ecological wastewater treatment unit in the highway service area, at least one set of filter grilles, at least one sewage purification device, and several drainage pipes;

[0041] The grille is made of stainless steel and is intercepted at the drain of the sewage tank. The drain pipe connected to the drain of the sewage tank is made of anti-seepage PVC pipe. One end of the drain pipe is connected to the sewage tank, and the other end is naturally placed at the entrance of the grille. The outlet of the grid is connected with a section of PVC pipe, and the other end of the PVC pipe is connected to the ar...

Embodiment 3

[0053] An artificial ecological wastewater treatment unit in a highway service area, which uses ecological concrete materials to form a layered unit, which is divided into a submerged plant layer, an artificial filler layer and an artificial composite filter material cushion from top to bottom, and is characterized in that the artificial composite filter material at the bottom is The thickness of the filter cushion is 6cm, and the diameter is 2cm. The gravel, construction waste, slag and clay particles are mixed, and the volume mixing ratio is 6:2:1:1; the artificial filler layer is made of raw soil and wood chips. , the volume mixing ratio is 6:4, and the thickness is 4cm; the plant layer is composed of rush grass, bahia grass 12 clumps / square meter, ryegrass, xiangpu 18 clumps / square meter. The void rate of the artificial composite filter material cushion of the artificial ecological wastewater treatment unit in the highway service area is 18%, and the water permeability coef...

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Abstract

The invention relates to an artificial ecological wastewater treatment unit in expressway service areas. A layered unit is made from ecological concrete material and is divided into a plant layer, anartificial filler layer and an artificial composite filtering material bedding layer from top to bottom; the thickness of the artificial composite filtering material bedding layer at the bottom part is 4-8 cm, and the artificial composite filtering material bedding layer is formed by mixing crushed stone with the diameter of 1-4 cm, building rubbish, slag and clay particles, and the volume mixingratio is 6:2:1:1; the artificial filler layer is formed by mixing original soil and sawdust, the volume mixing ratio is 6:4, and the thickness is 4-6 cm; and the plant layer comprises black rush, bahia grass (12 clusters/square meter), perennial ryegrass and bulrush (18 clusters/square meter). The artificial ecological wastewater treatment unit can effectively clear the inorganic eutrophic elements, such as nitrogen and phosphorus, in the sewage water, removes various organic pollutant substances such as SS, COD, BOD5, and the like, and conforms to the characteristics of low water quantity andunstable water quality of expressways; in addition, the artificial ecological wastewater treatment unit has wide application range, is not limited by sites, also can be used for treatment of pools, domestic wastewater and industrial wastewater, and is less in construction investment and convenient to operate.

Description

technical field [0001] The invention relates to an artificial ecological wastewater treatment unit, in particular to an artificial ecological wastewater treatment unit in a highway service area (highway service station, toll station, monitoring center, etc.), and belongs to the field of environmental protection engineering. Background technique [0002] At present, in addition to greening projects, the road construction rarely treats and reuses the domestic sewage in the subsidiary areas along the line, and most of them are directly discharged, causing ecological damage along the line. In recent years, with the increasing awareness of road environmental protection by governments at all levels, a small number of areas have begun to treat sewage in the service areas along the road, but the effect is not satisfactory. The sewage in the existing road service area has the characteristics of small water volume, large fluctuations in water quality and water volume, and high concent...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/32C02F3/34C02F3/10C02F3/28C02F1/40C02F1/66
CPCY02E50/30Y02W10/10
Inventor 梁明易刘辉岳蓬蓬刘谞承曾嘉强汪涛
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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