CN104556532A - Artificial wetland purifying system - Google Patents

Artificial wetland purifying system Download PDF

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Publication number
CN104556532A
CN104556532A CN201310479990.7A CN201310479990A CN104556532A CN 104556532 A CN104556532 A CN 104556532A CN 201310479990 A CN201310479990 A CN 201310479990A CN 104556532 A CN104556532 A CN 104556532A
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CN
China
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described
artificial wetland
wetland
water
horizontal flow
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CN201310479990.7A
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Chinese (zh)
Inventor
赵晶
苗永刚
邹江宁
薛劲松
姚中维
卢麟麟
孙仲桂
张鹏
李晔
Original Assignee
辽宁山水城市园林景观有限公司
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Priority to CN201310479990.7A priority Critical patent/CN104556532A/en
Publication of CN104556532A publication Critical patent/CN104556532A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage
    • Y02W10/18Constructed wetlands

Abstract

The invention relates to the technical field of artificial wetlands, particularly to an artificial wetland purifying system. The artificial wetland purifying system comprises an anaerobic biological filter tank, an aeration tank, a vertical flow artificial wetland, a horizontal flow artificial wetland and an effluent overflow weir which are connected in sequence, wherein a water inlet is formed in the bottom of the anaerobic biological filter tank, a gas vent is formed in the top of the anaerobic biological filter tank, a water outlet is formed beside the upper end of the anaerobic biological filter tank; the anaerobic biological filter tank is filled with a hard filler, and an anaerobic microbial growth promoter is added in the anaerobic biological filter tank. Due to the great effect of the microorganisms in purifying, an anaerobic-aerobic alternating environment is provided; moreover, the sewage treatment cost is reduced, blockage in operation is avoided, a good landscape effect is created, and a scientific research educational base is formed.

Description

A kind of artificial wetland purifying system

Technical field

The present invention relates to Artificial Wetland Techniques field, specifically a kind of artificial wetland purifying system.

Background technology

Artificial swamp, refers to manually building up pond or groove, and ground paving is set up defences the hypothallus of seepage water-resisting layer, filling certain depth, and planting aquatic plants, utilizes matrix, plant, the physics of microorganism, chemistry, biological triple synergy that sewage is purified.Artificial wet land treating system has the features such as buffer capacity is large, treatment effect good, technique is simple, reduced investment, working cost are low, in being applicable to very much, the sewage disposal of samll cities and towns.When sewage is through artificial wet land system, pollution substance wherein and nutritive substance, by Systemic absorption or decomposition, make water quality be purified, and hypothallus, waterplant and microorganism all play cleaning action, but microorganism is the main force of sewage purification.The microorganism playing cleaning action had both comprised anaerobion and had also comprised aerobic microbiological, and therefore, it is vital for creating the habitat being beneficial to microorganism growth.Therefore, the oxygen environment that artificial swamp provides is most important, and can be related to artificial swamp run well.Oxygen in artificial swamp needed for purifying contaminated thing is mainly from plant oxygen therapy, air natural reaeration.Also anaerobism and aerobic environment is provided by artificial means.Artificial swamp be divided into surface stream and underflow type artificial wet land, free water surface wetland closest to natural wetland, sewage more than stromal surface, from pond body feed-water end horizontal flow to water side.And the core technology of artificial swamp is undercurrent type wetland.Underflow type artificial wet land, according to drainage flow mode, is divided into again horizontal drowned flow artificial wet land and vertical subsurface flow wetland.In vertical subsurface flow system, sewage is at the bottom of surface longitudinal flow to bed, and in the process of longitudinal stream, sewage is successively through different medium layers, reaches the object of purification.Vertical current undercurrent type wetland has complete water distribution system and water gathering system, and its advantage is that floor space is little compared with other form wetland, and processing efficiency is high, and whole system can build underground in completely, can build up greenery patches on the ground and coordinate landscape planning to use.Horizontal drowned flow artificial wet land be in the process that flowed in the horizontal direction by water-in one end of sewage successively by sandstone, medium, root system of plant, flow to water outlet one end, to reach purification object.The compound wetland of horizontal drowned flow and vertical subsurface flow combination both effectively can remove COD, SS, TP etc., also efficiently TN can be removed, because it makes horizontal drowned flow and vertical subsurface flow have complementary advantages, nitrification and denitrification is reacted do not carry out under same environment, therefore compound flow constructed wetland is a kind of wetland form of worth research and extension.

Current domestic construction uses artificial swamp to have more the blocking of existing water gathering system, hydraulic load is little, plant collocation is single, ignore anaerobism, the aerobic envrionment conditions replaced of creating microorganism growth, landscape effect is ignored, the problems such as final-period management maintenance cost is high, maintenance effects is poor while paying attention to decontamination effect improving.

Summary of the invention

For the problems referred to above, the object of the invention is to provide a kind of artificial wetland purifying system.This system saves cost of sewage disposal, avoids blocking, build good landscape effect simultaneously in operation.

To achieve these goals, the present invention is by the following technical solutions:

A kind of artificial wetland purifying system, comprise connect successively anaerobic biofilter, aeration tank, vertical current constructed wetland, horizontal flow artificial wetland and effluent overflow weir water, wherein the bottom of anaerobic biofilter is provided with water-in, top is provided with venting hole, the upper end side of described anaerobic biofilter is provided with water outlet, is filled with the hard filler being convenient to microorganic adhesion and adds anaerobion growth stimulant in described anaerobic biofilter.

Described aeration tank adopts Steel Concrete to build up, and adopts mechanical aeration.

Described vertical current constructed wetland comprises a body and the hypothallus be arranged in a body and waterplant, and wherein waterplant is planted on hypothallus, and described hypothallus is followed successively by gravel bed, quartz sand layer and peat composed of rotten mosses soil layer from the bottom to top; The upper end of described bed body is provided with vertical current constructed wetland water-in, bottom is provided with vertical current constructed wetland water outlet, described vertical current constructed wetland water-in is connected with aeration tank, and described vertical current constructed wetland water outlet is connected with horizontal flow artificial wetland, applies waterproof layer bottom described bed body.Described gravel bed is the gravel of particle diameter 5-8mm; Quartz sand layer is the quartz sand of particle diameter 2.5mm; The Thickness Ratio of described gravel bed, quartz sand layer and peat composed of rotten mosses soil layer is 1.5:1.5:1.

The both sides of described horizontal flow artificial wetland are respectively equipped with horizontal flow artificial wetland feed-water end and horizontal flow artificial wetland water side, rubble matrix, gravel matrix, quartz sand matrix, gravel matrix and rubble matrix is followed successively by horizontal flow artificial wetland water side from horizontal flow artificial wetland feed-water end, described quartz sand base portion plantation waterplant, applies waterproof layer bottom the bed body of described horizontal flow artificial wetland.Described rubble matrix particle diameter is the rubble of 8-10mm, and gravel matrix is the gravel of particle diameter 5-8mm, and quartz sand matrix is the quartz sand of particle diameter 2.5mm.

Described waterproof layer is polyurethane water-proof paint layer.Described waterplant is one or more in Canna generalis Bailey, reed, cattail, calamus, Scirpus tabernaemontani and papyrus.

Waterwall is provided with between described vertical current constructed wetland and horizontal flow artificial wetland.Fill building stones in described effluent overflow weir water, above described building stones, lay lead wire net.

Advantage of the present invention and beneficial effect are:

1. the present invention adopts the mode of overflow weir to catchment, and avoids the blockage problem using header to cause, reduces later maintenance cost.

2. the present invention adopts vertical current and horizontal flow jointly to form composite constructed wetland system, than single Constructed Wetland For Purifying better effects if, and the pollutent of more effective removal nitrogen, phosphorus.

3. the present invention increases the pre-treatment of anaerobic biofilter and aeration tank, increases anerobe and aerobic bacteria quantity, improve purification efficiency before making sewage enter artificial swamp.

4. the present invention forms good landscape effect in artificial swamp part, also beautifies the environment while purifying water, can as scientific research, educational base.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Wherein: 1 is anaerobic biofilter, 2 is water-in, and 3 is venting hole, and 4 is water outlet, and 5 is aeration tank, and 6 is Link Port, and 7 is vertical current constructed wetland, and 8 is barricade, and 9 is horizontal flow artificial wetland, and 10 is effluent overflow weir water, and 11 is artificial swamp waterproof layer.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in further detail.

As shown in Figure 1, the present invention includes connect successively anaerobic biofilter 1, aeration tank 5, vertical current constructed wetland 7, horizontal flow artificial wetland 9 and effluent overflow weir water 10, wherein anaerobic biofilter 1 is provided with water-in 2 for bottom, upper end side is provided with the flow lifting type structure of water outlet 4, and the top of anaerobic biofilter 1 is provided with venting hole 3.Be filled with the hard filler being convenient to microorganic adhesion in described anaerobic biofilter 1, as sandstone, haydite, granulated glass sphere, plastic corrugated sheet, volcanics filtrate etc., add anaerobion growth stimulant, if concentration is the nickel solution of 1.0mg/L simultaneously.Described aeration tank 5 adopts Steel Concrete to build up, and adopts mechanical aeration.

Described vertical current constructed wetland 7 comprises a body and the hypothallus be arranged in a body and waterplant, wherein waterplant is planted on hypothallus, described hypothallus is followed successively by gravel bed, quartz sand layer and peat composed of rotten mosses soil layer from the bottom to top, and wherein gravel bed is the gravel of particle diameter 5-8mm; Quartz sand layer is the quartz sand of particle diameter 2.5mm; The Thickness Ratio of described gravel bed, quartz sand layer and peat composed of rotten mosses soil layer is 1.5:1.5:1.The upper end of described bed body is provided with vertical current constructed wetland water-in, bottom is provided with vertical current constructed wetland water outlet, described vertical current constructed wetland water-in is connected with aeration tank 5, described vertical current constructed wetland water outlet is connected with horizontal flow artificial wetland 9, apply waterproof layer 11 bottom described bed body, waterproof layer 11 is polyurethane water-proof paint layer.

The both sides of described horizontal flow artificial wetland 9 are respectively equipped with horizontal flow artificial wetland feed-water end and horizontal flow artificial wetland water side, rubble matrix, gravel matrix, quartz sand matrix, gravel matrix and rubble matrix is followed successively by horizontal flow artificial wetland water side from horizontal flow artificial wetland feed-water end, described rubble matrix particle diameter is the rubble of 8-10mm, gravel matrix is the gravel of particle diameter 5-8mm, and quartz sand matrix is the quartz sand of particle diameter 2.5mm.Described quartz sand base portion plantation waterplant.Apply waterproof layer 11 bottom the bed body of described horizontal flow artificial wetland 9, waterproof layer 11 is polyurethane water-proof paint layer.Be provided with waterwall 8 between described vertical current constructed wetland 7 and horizontal flow artificial wetland 9, horizontal flow artificial wetland water-in is arranged at the bottom of horizontal flow artificial wetland 9.

Described waterplant is one or more in Canna generalis Bailey, reed, cattail, calamus, Scirpus tabernaemontani and papyrus.Fill building stones in described effluent overflow weir water 10, the lead wire net of laying above of described building stones is reinforced.

Principle of work of the present invention is:

Sewage enters in anaerobic biofilter 1 by water-in 2, after the filler generation anaerobic reaction in anaerobic biofilter 1, is flowed out and enter in aeration tank 5 by water outlet 4, and discarding of producing in anaerobic reaction process is discharged by venting hole 3.Adopt mechanical aeration in aeration tank 5, increase the content of the dissolved oxygen in sewage.Sewage after aeration enters vertical current constructed wetland 7 by Link Port 6 again, Link Port 6 is arranged on the surface layer near vertical current constructed wetland 7, sewage aerobic microbe population after aeration is more, vertical current constructed wetland 7 apart from top layer immediate area and plant root growth region soluble oxygen level also higher, in aerobic region, microorganism carries out nitration reaction.Current flow into bottom matrix gradually, anerobe predominant number, are beneficial to and carry out anti-nitration reaction, the envrionment conditions that the removal of the pollutent such as nitrogen and phosphorus all needs aerobic, anaerobism to replace.After current flow through vertical current constructed wetland 7 from top to bottom, horizontal flow artificial wetland 9 is entered from bottom, barricade 8 is provided with between vertical current constructed wetland 7 and horizontal flow artificial wetland 9, horizontal flow artificial wetland 9 front end is still anaerobic environment, for the anaerobic reaction carried out completely can also proceed, can be hocketed again aerobic reaction in the aerobic zone flowing into waterplant root growth gradually, like this can high-efficient purification sewage, reaches best pollutant removal.Artificial swamp to the removal of nitrogen mainly by nitrification and denitrification, vertical current constructed wetland 7 has good nitrification ability, and the denitrification of horizontal flow artificial wetland 9 is fine, the two combines the removal can strengthened nitrogen, better to the decontamination effect improving of sewage.The end of horizontal flow artificial wetland 9, traditional header is replaced with effluent overflow weir water 10, avoid the technical problem because water-pipe blockage problem causes wetland not run well, and good landscape effect can be formed in artificial swamp part, also beautify the environment while purifying water, scientific research and education Demonstration Base can also be formed.

Claims (10)

1. an artificial wetland purifying system, it is characterized in that: comprise the anaerobic biofilter (1) connected successively, aeration tank (5), vertical current constructed wetland (7), horizontal flow artificial wetland (9) and effluent overflow weir water (10), wherein the bottom of anaerobic biofilter (1) is provided with water-in (2), top is provided with venting hole (3), the upper end side of described anaerobic biofilter (1) is provided with water outlet (4), described anaerobic biofilter is filled with the hard filler being convenient to microorganic adhesion in (1), and add anaerobion growth stimulant.
2. by artificial wetland purifying system according to claim 1, it is characterized in that: described aeration tank (5) adopt Steel Concrete to build up, and adopt mechanical aeration.
3. by artificial wetland purifying system according to claim 1, it is characterized in that: described vertical current constructed wetland (7) comprises a body and the hypothallus be arranged in a body and waterplant, wherein waterplant is planted on hypothallus, and described hypothallus is followed successively by gravel bed, quartz sand layer and peat composed of rotten mosses soil layer from the bottom to top; The upper end of described bed body is provided with vertical current constructed wetland water-in, bottom is provided with vertical current constructed wetland water outlet, described vertical current constructed wetland water-in is connected with aeration tank (5), described vertical current constructed wetland water outlet is connected with horizontal flow artificial wetland (9), applies waterproof layer (11) bottom described bed body.
4., by artificial wetland purifying system according to claim 3, it is characterized in that: described gravel bed is the gravel of particle diameter 5-8mm; Quartz sand layer is the quartz sand of particle diameter 2.5mm; The Thickness Ratio of described gravel bed, quartz sand layer and peat composed of rotten mosses soil layer is 1.5:1.5:1.
5. by artificial wetland purifying system according to claim 1, it is characterized in that: the both sides of described horizontal flow artificial wetland (9) are respectively equipped with horizontal flow artificial wetland feed-water end and horizontal flow artificial wetland water side, rubble matrix, gravel matrix, quartz sand matrix, gravel matrix and rubble matrix is followed successively by horizontal flow artificial wetland water side from horizontal flow artificial wetland feed-water end, described quartz sand base portion plantation waterplant, applies waterproof layer (11) bottom the bed body of described horizontal flow artificial wetland (9).
6., by artificial wetland purifying system according to claim 5, it is characterized in that: described rubble matrix particle diameter is the rubble of 8-10mm, and gravel matrix is the gravel of particle diameter 5-8mm, and quartz sand matrix is the quartz sand of particle diameter 2.5mm.
7., by the artificial wetland purifying system described in claim 3 or 5, it is characterized in that: described waterproof layer (11) is polyurethane water-proof paint layer.
8., by the artificial wetland purifying system described in claim 3 or 5, it is characterized in that: described waterplant is one or more in Canna generalis Bailey, reed, cattail, calamus, Scirpus tabernaemontani and papyrus.
9., by artificial wetland purifying system according to claim 1, it is characterized in that: between described vertical current constructed wetland (7) and horizontal flow artificial wetland (9), be provided with waterwall (8).
10. by a kind of high-efficiency artificial wetland purification system according to claim 1, it is characterized in that: described effluent overflow weir water fills building stones in (10), above described building stones, lay lead wire net.
CN201310479990.7A 2013-10-14 2013-10-14 Artificial wetland purifying system CN104556532A (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN107055800A (en) * 2017-05-05 2017-08-18 西南民族大学 A kind of analogy method of calamus to lead accumulation ability in water
CN107759006A (en) * 2016-08-18 2018-03-06 湖南大学 A kind of nickeliferous industrial waste water disposal device and technique
CN108585210A (en) * 2018-04-28 2018-09-28 东南大学 A kind of effluent treatment plant

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107759006A (en) * 2016-08-18 2018-03-06 湖南大学 A kind of nickeliferous industrial waste water disposal device and technique
CN107055800A (en) * 2017-05-05 2017-08-18 西南民族大学 A kind of analogy method of calamus to lead accumulation ability in water
CN108585210A (en) * 2018-04-28 2018-09-28 东南大学 A kind of effluent treatment plant

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