CN102515361A - Detachable inorganic material ecological floating bed device - Google Patents

Abstract

A detachable inorganic material ecological floating bed device for sewage treatment, comprising a water inlet (1), a floating bed carrier (2), and a water outlet (6), the floating bed carrier is inlaid with planting plants (4). The ecological floating bed is composed of a detachable bed body and planting basket, which can replace plants according to the growth of the plants to ensure the purification effect of the ecological floating bed; the floating bed body is made of inorganic material clay foam, which has a high microbial affinity and is beneficial to microorganisms. Hanging film; the clay foam used to prepare the floating bed body also has a certain adsorption force, which can further improve the purification capacity of the ecological floating bed system; the planting blue (4) is filled with waste bricks, vermiculite, etc. (5), which can prevent plant lodging At the same time, it acts as a carrier for microbial film attachment, increasing the microbial load of the floating bed. In a word, the structure of the present invention is simple and reasonable, and the treatment effect on eutrophic water body is ideal.

Description

A detachable inorganic material ecological floating bed device

technical field

The invention relates to an ecological floating bed device for sewage purification, in particular to a plant ecological floating bed purification device for treating eutrophic sewage. the

Background technique

The ecological floating bed purification technology with higher plants as the main body has the characteristics of high efficiency, low investment, low operating cost, in-situ repair and pollutant control, etc., and can adapt to various water depths. The management and harvest of plants are also better than artificial wetland systems. Easy, so it is increasingly used to control or restore eutrophic water bodies. At present, the artificial biological floating bed carrier is mainly made of polymer materials, especially polystyrene foam and its modified materials. Floating beds made of polymer materials are favored by people because of their low cost, strong buoyancy, and stable performance, so they occupy a dominant position in domestic floating bed materials. , cannot be used for a long time, maintenance is inconvenient, what is more serious is that these materials are easy to break and crack under the action of stress, and it is difficult to salvage if lost in the water, which instead causes environmental pollution and safety hazards, which has become the main factor restricting the large-scale promotion of ecological floating bed technology one. the

Contents of the invention

The object of the present invention is to provide a detachable inorganic material ecological floating bed device for sewage treatment. the

The purpose of the invention of the present invention is achieved through the following technical measures:

In order to realize the repeated use of the floating bed body, the floating bed device is composed of a clay foam floating board and a clay foam planting basket, and the planting basket is directly embedded in a round hole in the floating board during use. The plane size of the floating board is 30cm×30cm, the thickness is 6cm, and there is a round hole with a diameter of 15cm inside; the diameter of the upper edge of the planting indigo is 16cm. When replacement is required, the planting blue can be directly replaced and the bed body can continue to be used.

In order to enhance the generalizability of the floating bed device, the size of the floating bed body and the round holes in the bed body can be adjusted according to the size of the planting plants, and it is only necessary to ensure the buoyancy of the entire floating bed body. The planting indigo in the floating bed body can be made of inorganic clay foam material in this experiment, or a general plastic flower pot (the plastic flower pot can be used for a long time because it has been submerged in water for a long time). the

In order to prolong the use time of the floating bed and improve the economic benefits of the ecological floating bed, this study intends to use clay foam to prepare the inorganic ecological floating bed body to improve the corrosion resistance and oxidation resistance of the floating bed, enhance the film-hanging performance of the floating bed, and prolong the service life of the floating bed. Reduce environmental pollution and safety hazards caused by the loss of floating bed materials. the

Preparation of clay foam floating bed

Firstly, the sawdust particles are piled up in the floating bed model, and the clay slurry is injected so that the clay slurry is filled in the gaps formed by the sawdust particles, and then dried and formed. The clay slurry contains 1-10% low-temperature binder (CMC) (calculated on a dry basis), and 1-5% high-temperature binder composite phosphate. The formed clay foam bed is fired in a muffle furnace, and the temperature is controlled during the firing process to prevent the embryo from breaking.

In order to further improve the purification capacity of the floating bed system, waste bricks or vermiculite with a diameter of 1 cm are specially filled into the planting basket to prevent the plants from lodging. At the same time, waste brick or vermiculite is also a carrier for microbial film attachment to increase the microbial biomass of the floating bed and improve water quality. the

In order to further improve the purification capacity of the floating bed system, an independent micro-ecological floating bed system will be built, so that the floating bed can float freely on the water surface, and enhance the exposure of plant roots to dissolved oxygen and plant light. the

The beneficial effects of the present invention are:

Since the bed body of the floating bed device is made of inorganic clay foam, it has stable physical and chemical properties, high mechanical strength and strong microbial affinity, so it can be used for a long time, and it is beneficial to the growth and reproduction of microorganisms, and improves the growth of microorganisms. efficiency.

Since the floating bed device is composed of clay foam floating boards and planting baskets, the planting baskets and the plants therein can be replaced in time according to the growth of the plants to ensure the purification effect of the ecological floating bed. the

Since the planting blue of the plant ecological floating bed is filled with waste bricks and stones, while preventing plants from lodging, the waste bricks and stones also serve as a carrier for microbial film attachment, which increases the microbial load of the floating bed and further improves water quality. the

The plant ecological floating bed device of the invention has the advantages of simple structure, reasonable arrangement and ideal treatment effect. the

Description of drawings

Fig. 1 is a working schematic diagram of the plant ecological floating bed device of the present invention. the

Detailed ways

The present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited to the following specific modes. the

Example 1

A plant ecological floating bed device for sewage treatment, with a plane size of 2.0m×1.5m, an effective water depth of 1.2m, and an effective volume of 3.6 m ³ ; it includes a water inlet 1, a floating bed carrier 2, and a water outlet arranged at the bottom of the floating bed 6. Planting baskets 4 are inlaid on the floating bed carrier 2, plants 3 are planted in the planting basket 4, and waste bricks or vermiculite 5 with a diameter of 1 cm are filled inside.

As shown in Figure 1, in the constructed floating bed device, the water sample added with 5 mg/L enters the ecological floating bed area through the rotameter 1 at a flow rate of 1.6 L/h, and the plants 5 in the planting basket 4 are planted on the floating bed carrier 2 There are 12 dripping Avalokitesvara and 4 calla lilies (each plant height is 30-35cm), and each planting basket has four plants; after seven days of plant ecological floating bed treatment, the floating bed device is discharged from the water outlet 6. the

The floating bed system constructed above has an ideal purification effect on total nitrogen and total phosphorus in livestock wastewater, and the removal rate of total nitrogen in eutrophic wastewater reaches 72%, and the removal rate of total phosphorus reaches 73%. the

Claims (4)

1. plant ecological floating bed device that is used for WWT; Comprise water-in (1), floating bed carrier (2), water outlet (6); Be inlaid with plantation blue (4) on the said floating bed carrier, it is characterized in that: said floating bed device is made up of floating bed carrier and plantation indigo plant.

2. device as claimed in claim 1 is characterized in that: said floating bed device is made up of with plantation indigo plant removable floating bed carrier.

3. device as claimed in claim 1 is characterized in that: said floating bed carrier is processed by clay foam, has higher mikrobe affinity, is beneficial to bio-film colonization.

4. according to claim 1 or claim 2 device is characterized in that: be filled with useless masonry or vermiculite (5) in the said plantation basket (4), improve the carrier surface forming biofilm property of bed body.

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