CN112811599A

CN112811599A - Flow water purification system in one day based on plant living coupling

Info

Publication number: CN112811599A
Application number: CN202110066173.3A
Authority: CN
Inventors: 赵佳倚; 李聪; 姚行平; 魏郭子建; 计杰; 许罗
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-05-18

Abstract

The invention discloses a flow-returning water purification system based on plant-growing coupling, which is characterized by comprising a floating bed bearing unit, a flow-returning sprinkling irrigation unit and a plant-growing coupling unit; the floating bed bearing unit floats in water by means of buoyancy of the floating bed bearing unit, the center of the floating bed bearing unit is provided with the flow sprinkling irrigation unit in a penetrating way, and the periphery of the floating bed bearing unit is provided with a plurality of vegetation coupling units in a penetrating way; the floating bed bearing unit consists of a bearing floating body and emergent aquatic plants; the flow-returning sprinkling irrigation unit consists of a solar component, a water pump, a water inlet, a water delivery pipe and a sprinkling irrigation opening; the plant coupling unit consists of an inflow hole, a plant coupling pipe, a biological membrane filler and an outflow hole. Compared with the prior art, the invention has the advantages of good purification effect, wide application range and high comprehensive benefit, the circulating action of the water body is strengthened and the dissolved oxygen of the water body is improved through the vertical flow guide configuration of the spiral flow spray irrigation unit and the plant growth coupling unit arranged at the spray irrigation opening of the spiral flow spray irrigation unit, and the water purification effect of the sewage is strengthened through the coupling symbiotic metabolism action of the plant root system and the microorganisms.

Description

Flow water purification system in one day based on plant living coupling

Technical Field

The invention relates to the field of sewage treatment, in particular to a flow water purification system based on plant-growing coupling.

Background

The ecological floating bed technology is one of the most common and extensive in-situ remediation technologies in the field of surface water purification. The traditional ecological floating bed has the advantages of small occupied area, low manufacturing cost, easy management and the like, and has wide engineering application in the fields of urban black and odorous river restoration, eutrophicated lake treatment, urban landscape water body purification and the like. However, the defects of the conventional ecological floating bed or the reinforced ecological floating bed proposed by some experts and scholars in practical application are gradually exposed.

Firstly, the biological membrane of the traditional ecological floating bed is only attached to the root system of the plant or the plant planting substrate, so that the quantity and the activity of microorganisms are limited, and the water purification efficiency of the traditional ecological floating bed is limited; secondly, the hydraulic circulation conditions of the traditional ecological floating bed are insufficient, especially for detention type or slow flow type surface water bodies, the traditional ecological floating bed can only statically process the surface water body where the traditional ecological floating bed is located, and for water bodies far away or deep, the traditional ecological floating bed has almost no water purification effect, so that experts and scholars in the related field propose to introduce a hydraulic circulation system into the traditional ecological floating bed, such as: river axial-flow pump, plug-flow aeration and the like, but the method has higher manufacturing cost, higher power consumption and difficult popularization; thirdly, the ecological bed that floats of tradition ecological bed or intensive type ecological bed that floats all has the not high problem of space utilization, promptly: only the space near the water surface is used for purifying water, and the underwater space of the floating bed is not fully used.

With the urgent need of upgrading water environment quality standards and controlling surface water eutrophication, a novel efficient water-purifying ecological floating bed capable of making up the technical gap is urgently needed in the field of surface water treatment.

Disclosure of Invention

The invention aims to design a flow-returning water purification system based on plant growth coupling aiming at the defects of the prior art, the flow-returning water purification system based on plant growth coupling is adopted, the flow-returning circulation effect of a water body is strengthened and the dissolved oxygen of the water body is improved through the vertical flow guide configuration of the flow-returning spray irrigation unit and the plant growth coupling unit arranged at the spray irrigation opening of the flow-returning spray irrigation unit, and meanwhile, the water purification effect of sewage is strengthened through the coupling symbiotic metabolism effect of a plant root system and microorganisms.

The purpose of the invention is realized as follows: a flow-returning water purification system based on plant-growing coupling is characterized by comprising a floating bed bearing unit, a flow-returning sprinkling irrigation unit and a plant-growing coupling unit; the floating bed bearing unit floats in water by means of buoyancy of the floating bed bearing unit, the center of the floating bed bearing unit is provided with the flow sprinkling irrigation unit in a penetrating way, and the periphery of the floating bed bearing unit is provided with a plurality of vegetation coupling units in a penetrating way; the floating bed bearing unit consists of a bearing floating body and emergent aquatic plants; the flow-returning sprinkling irrigation unit consists of a solar component, a water pump, a water inlet, a water delivery pipe and a sprinkling irrigation opening; the plant-growing coupling unit consists of an inflow hole, a plant-growing coupling pipe, a biological membrane filler and an outflow hole; emergent aquatic plants are planted on the upper part of the plant-growing coupling pipe; the solar component is electrically connected with the water pump; the water body lifted upwards by the water pump is conveyed to the sprinkling irrigation opening through a water conveying pipe, then is sprinkled into the inflow hole, then flows downwards through the vegetation coupling pipe, and finally flows to the water body through the outflow hole to perform sewage circulation purification treatment.

The device is arranged in sewage and comprises a floating bed bearing unit, a flow-returning sprinkling irrigation unit and a plant-growing coupling unit; the floating bed bearing unit floats in water by means of buoyancy of the floating bed bearing unit, the center of the floating bed bearing unit is provided with the flow sprinkling irrigation unit in a penetrating way, and the periphery of the floating bed bearing unit is provided with a plurality of vegetation coupling units in a penetrating way; the floating bed bearing unit consists of a bearing floating body and emergent aquatic plants; the flow-returning sprinkling irrigation unit consists of a solar component, a water pump, a water inlet, a water delivery pipe and a sprinkling irrigation opening; the plant coupling unit consists of an inflow hole, a plant coupling pipe, a biological membrane filler and an outflow hole.

The solar module comprises a photovoltaic panel, a storage battery and a waterproof cable, and the waterproof cable is connected with the water pump; the water inlet is arranged below the floating bed bearing unit and is immersed below the water surface, and the sprinkling irrigation port is arranged above the floating bed bearing unit and is close to the inflow hole of the vegetation coupling unit; the water body that the water pump upwards promoted is carried extremely through the raceway the sprinkling irrigation mouth, then the sprinkling irrigation extremely in the inflow hole, then through vegetation coupling pipe downward flow finally passes through the discharge orifice is discharged.

The emergent aquatic plants are planted in the plant coupling pipe through the inflow hole of the plant coupling unit, the top of the plant coupling pipe is provided with a net bag for supporting stems and leaves of the emergent aquatic plants, and the roots of the aquatic plants penetrate through the net bag to be wound with the biofilm carrier in an interaction manner, so that the coupled symbiotic metabolism of 'plants-microorganisms' is promoted.

The species of the emergent aquatic plants are Reli flower, yellow flag, canna, droughtonia indica, cress and Siberian iris, and the plant height is 10-30 cm during planting.

The biomembrane carrier is fixed in the vertical plant growth tube, and is made of palm fiber, loofah sponge, polypropylene (PP), Polyethylene (PE), reinforced polypropylene (RPP), chlorinated polyvinyl chloride (CPVC) or polyvinylidene fluoride (PVDF), and the porosity is 50-95%.

Compared with the prior art, the invention has the remarkable characteristics and the gain effect that:

(1) the water body circulating effect is enhanced and the dissolved oxygen in the water body is improved by the vertical diversion structure of the plant growth coupling unit arranged on the water delivery pipe and the spray irrigation opening of the flow-circulating spray irrigation unit;

(2) the water purification effect of the sewage is enhanced through the coupling symbiotic metabolism of the plant root system and the microorganisms, and the sewage is subjected to the metabolism of the microorganisms in the aeration and oxygenation processes, so that the degradation of organic pollutants is facilitated;

(3) has the obvious advantages of high space utilization rate, simple and convenient operation and maintenance, obvious water purification effect and the like.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic diagram of the operation of the present invention.

Detailed Description

The invention is further described in detail with reference to the following specific examples and the accompanying drawings.

Example 1

Referring to the attached drawings 1-3, the invention comprises a floating bed supporting unit 1, a flow-returning sprinkling irrigation unit 2 and a plant-growing coupling unit 3; the floating bed bearing unit 1 floats in water by means of buoyancy of the floating bed bearing unit, the center of the floating bed bearing unit is provided with a flow sprinkling irrigation unit 2 in a penetrating way, and the periphery of the floating bed bearing unit is provided with a plurality of vegetation coupling units 3 in a penetrating way; the floating bed bearing unit 1 consists of a bearing floating body 11 and emergent aquatic plants 12; the flow-returning sprinkling irrigation unit 2 consists of a solar component 21, a water pump 22, water inlets 23 and 24-a water conveying pipe and a sprinkling irrigation opening 25; the plant growth coupling unit 3 consists of an inflow hole 31, a plant growth coupling pipe 32, a biological film filler 33 and an outflow hole 34.

The solar module 21 comprises a photovoltaic panel, a storage battery and a waterproof cable, and the waterproof cable is connected with the water pump 22; the water inlet 23 is arranged below the floating bed bearing unit 1 and is immersed below the water surface 4, and the sprinkling irrigation port 25 is arranged above the floating bed bearing unit 1 and is close to the inflow hole 31 of the vegetation coupling unit 3; the water body lifted upwards by the water pump 22 is conveyed to the sprinkling irrigation opening 25 through the water conveying pipe 24, then sprinkled into the inflow hole 31, then flows downwards through the vegetation coupling pipe 32, and finally is discharged through the outflow hole 34.

The emergent aquatic plants 12 are planted in the plant-growing coupling pipe 32 through the inflow hole 31 of the plant-growing coupling unit 3, and the top of the plant-growing coupling pipe 32 is provided with a net bag; the root system of the aquatic plant 12 penetrates through the net bag to be wound with the biomembrane carrier 33 in an interactive mode.

The method is characterized in that the species of the emergent aquatic plant 12 is canna, and the plant height is 10cm when the emergent aquatic plant is planted.

The biomembrane carrier 33 is fixed inside the vertical plant growth tube 32, is made of palm fiber and loofah sponge, and has a porosity of 75%.

The protection of the present invention is not limited to the above embodiments. Variations and advantages that may occur to those skilled in the art may be incorporated into the invention without departing from the spirit and scope of the inventive concept, and the scope of the appended claims is intended to be protected.

Claims

1. A flow-returning water purification system based on plant growth coupling is characterized by comprising a floating bed bearing unit (1), a flow-returning sprinkling irrigation unit (2) and a plant growth coupling unit (3); the floating bed bearing unit (1) floats in water by means of self buoyancy, the center of the floating bed bearing unit is provided with a flow sprinkling irrigation unit (2) in a penetrating way, and the periphery of the floating bed bearing unit is provided with a plurality of vegetation coupling units (3) in a penetrating way; the floating bed bearing unit (1) consists of a bearing floating body (11) and emergent aquatic plants (12); the flow-returning sprinkling irrigation unit (2) consists of a solar component (21), a water pump (22), a water inlet (23), a water delivery pipe (24) and a sprinkling irrigation opening (25); the plant growth coupling unit (3) consists of an inflow hole (31), a plant growth coupling pipe (32), a biological film filler (33) and an outflow hole (34); emergent aquatic plants (12) are planted on the upper part of the plant-growing coupling pipe (32); the solar component (21) is electrically connected with the water pump (22); the water body lifted upwards by the water pump (22) is conveyed to the sprinkling irrigation opening (25) through a water conveying pipe (24), then is sprinkled into the inflow hole (31), then flows downwards through the vegetation coupling pipe (32), and finally flows to the water body through the outflow hole (34) to perform sewage circulation purification treatment.

2. The system for flow purification of water based on vegetation coupling according to claim 1 wherein the solar module (21) comprises photovoltaic panels, accumulators and watertight cables.

3. The vegetation coupling-based water purification system of claim 1, wherein the vertical vegetation pipe (32) is filled with palm fiber, loofah sponge, polypropylene (PP), Polyethylene (PE), reinforced polypropylene (RPP), chlorinated polyvinyl chloride (CPVC) or polyvinylidene fluoride (PVDF) with a porosity of 50-95%.