CN2472784Y - Composite filting pool - Google Patents

Abstract

The utility model is a composite biological filter tank, which is composed of a tank body, a recoil water inlet pipe and a recoil drain pipe. Two kinds of filter fillers with different specific gravity are placed in the tank body. Coarse, mainly for biochemical and sedimentation, the filler in the lower section has small porosity and small particle size, and mainly plays the role of biochemical and mechanical interception, which can prolong the working cycle of the filter, reduce water consumption, and save treatment costs. This product is used for treatment Water turbidity: influent turbidity <100 degrees, effluent turbidity <3 degrees, this product is used to treat organic matter: influent COD concentration is not higher than 300mg/L, effluent COD and BOD5 removal rates reach 90% and 95% respectively .

Description

Composite filter

The utility model relates to a composite filter tank, which belongs to the technical field of water treatment equipment.

The existing ordinary filter only removes the turbidity in the water, and its main mechanism is mechanical interception; while the existing biological filter mainly relies on the biofilm covered on the surface of the filter material to absorb and oxidize the organic matter in the wastewater. , to filter; but its ventilation, temperature and other conditions affect the growth of biofilm, and these factors are more difficult to control, which affects the effect of biochemical treatment; the important thing is: when the water contains inorganic and organic components, the existing It is difficult for the facilities to achieve a satisfactory treatment effect, and it is difficult to obtain water quality that meets the standard requirements.

The purpose of this utility model is to provide a composite filter device, which can be used as water treatment equipment, and can be used for secondary biological treatment of organic wastewater, that is, it can simultaneously treat wastewater containing both inorganic and organic components, as Water supply treatment equipment, when the turbidity of the raw water is below 100 degrees, it can be directly filtered, and the turbidity of the effluent is below 3 degrees. When the raw water is polluted by organic matter, this product also plays the role of biodegradation of organic matter, and the removal rate of BOD5 is above 80%. The structure of this product is relatively simple, the design is reasonable, the cost is low, and the maintenance and use are convenient.

The utility model is constituted as follows: it is composed of a pool body (1), a recoil water inlet pipe (2), and a recoil drain pipe (3), and two or more types of The filter packing (4), the specific gravity of the filter packing (4) placed from top to bottom in the pool body (1) is from small to large, wherein the specific gravity of the next layer of filter packing (4) is greater than that of the previous layer of filter packing ( 4) specific gravity, specifically: two types of filter fillers (4) are placed in the pool body (1), wherein the specific gravity of the next layer of filter fillers (4) is greater than that of the previous layer of filter fillers (4), An inlet pipe (5) with holes (7) is arranged in the pool body (1), and a partition plate with holes (6) is installed above the lightest filter packing (4) in the pool body (1) , a partition with holes (6) is also installed under the heaviest filter packing (4) in the pool body (1), the specific gravity filter packing (4) is under the pool body (1), and the specific gravity is small The filter filler (4) floats under the perforated partition plate (6) above the pool body (1), the filter filler (4) with a large specific gravity can be quartz sand, anthracite, carbon, and the filter filler (4) with a small specific gravity can be It is a plastic product.

Compared with the prior art, the filler of the utility model has two sections, the filler in the upper section has a large porosity and a coarser particle size, which mainly plays a role in biochemical and sedimentation, and the filler in the lower section has a small porosity and a smaller particle size, which mainly plays a biochemical role. And the mechanical interception effect can prolong the working cycle of the filter, reduce the self-consumption water, and save the treatment cost. In the utility model, the structure of water and air recoil is adopted to ensure the timely renewal of the biofilm, so that the filler maintains good physical and chemical properties , to ensure good quality of effluent water, this product is used to treat water turbidity: influent turbidity 100 degrees, effluent turbidity 3 degrees, when this product is used to treat organic matter, the COD concentration of influent water is not higher than 300mg/L, and the effluent COD and The removal rate of BOD5 reaches 90% and 95% respectively. The structure of this product is relatively simple, the design is reasonable, the cost is low, and the maintenance and use are convenient.

Accompanying drawing 1 is the structural representation of the utility model.

Embodiment 1 of the present utility model: it is made of pool body (1), recoil water inlet pipe (2), recoil drain pipe (3), and two kinds of filter fillers (4) are placed in the pool body (1), Wherein a kind of filter packing (4) is quartz sand, and another kind of filter packing (4) is commercially available hollow plastic ball, and a partition plate with a hole ( 6), a partition with holes (6) is also installed under the quartz sand in the pool body (1), during use, the quartz sand sinks in the lower part of the product, and the plastic ball floats in the upper part of the product, which can Wastewater containing organic matter and inorganic matter in the raw water is treated, and after a period of time, the filler is cleaned by recoiling the water inlet pipe (2) and the recoiling drain pipe (3).

Embodiment 2 of the present utility model: it is made of pool body (1), recoil water inlet pipe (2), recoil drain pipe (3), and two kinds of filter fillers (4) are placed in the pool body (1), One of the filter fillers (4) is quartz sand, and the other filter filler (4) is a commercially available hollow plastic ball. An inlet pipe (5) with a hole (7) is arranged in the pool body (1) to realize air-water recoil, and a partition plate with a hole is installed above the hollow plastic ball floating in the pool body (1) (6), a partition with holes (6) is also installed below the quartz sand in the pool body (1). During use, the quartz sand sinks in the lower part of the product, and the plastic ball floats in the upper part of the product, so that The waste water containing organic matter and inorganic matter in the raw water can be treated, and after a period of time, the filler is cleaned by recoiling the water inlet pipe (2) and the recoiling drain pipe (3). After using for a period of time, in addition to using the backwash water inlet pipe (2) and the backwash drain pipe (3) to clean the packing, the air intake pipe (5) is also used to flush air into the pool body (1) to The role of the filler for thorough cleaning, due to the different specific gravity of the two kinds of fillers, after cleaning the fillers, their position in the pool body is naturally that the heavy one sinks in the lower part of the pool body, and the light weight one floats in the upper part of the pool body.

Embodiment 3 of the present utility model: it consists of a pool body (1), a recoil water inlet pipe (2), and a recoil drain pipe (3), and four kinds of filter fillers (4) are placed in the pool body (1). They are plastic hollow balls, chemical fiber sheets, coke, and quartz sand. Since the specific gravity is different, the layers in the pool body (1) are relatively clear. From the top to the bottom of the pool body (1), they are respectively: Plastic hollow balls, chemical fiber sheets, coke, and quartz sand are provided with an air inlet pipe (5) on the pool body (1), and a dividing plate (6) is installed above the plastic hollow balls in the pool body (1). A dividing plate (6) is installed below the quartz sand in the pool body (1), and a through hole is arranged on the dividing plate (6). After using for a period of time, in addition to using the backwash water inlet pipe (2) and the backwash drain pipe (3) to clean the packing, the air intake pipe (5) is also used to flush air into the pool body (1) to Fillers are used for thorough cleaning. Due to the different specific gravity of the fillers, after the fillers are cleaned, their position in the pool body is naturally that the heavy ones sink in the lower part of the pool body, and the light weight ones float in the upper part of the pool body.

Claims (3)

1, a kind of combined filtration pond, it is made of pond body (1), backflushing water intake pipe (2), washback drainpipe (3), it is characterized in that: the filter packing (4) that in pond body (1), is placed with two or more type, in pond body (1) from top to bottom, the proportion of the filter packing (4) placed is ascending, wherein descends the proportion of the proportion of one deck filter packing (4) greater than last layer filter packing (4).

2, according to the described this combined filtration of claim 1 pond, it is characterized in that: the filter packing (4) that in pond body (1), is placed with two types, wherein descend the proportion of the proportion of one deck filter packing (4), in pond body (1), be provided with the air inlet pipe (5) of (7) with holes greater than last layer filter packing (4).

3, according to claim 1,2 described this combined filtration ponds, it is characterized in that: the top of the lightest filter packing (4) in pond body (1) is equipped with a dividing plate with holes (6), the below of the heaviest filter packing (4) in pond body (1) also is equipped with a dividing plate with holes (6), heavy filter packing (4) is in the below of pond body (1), the filter packing that proportion is little (4) floats under the top dividing plate with holes (6) of pond body (1), heavy filter packing (4) can be a quartz sand, anthracite, charcoal, the filter packing that proportion is little (4) can be plastic products.

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