CN2767433Y

CN2767433Y - Ecological concrete purifying trough at running water shore

Info

Publication number: CN2767433Y
Application number: CN 200520068277
Authority: CN
Inventors: 王沛芳; 王超; 侯俊
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2005-01-14
Filing date: 2005-01-14
Publication date: 2006-03-29
Anticipated expiration: 2015-01-14

Abstract

The utility model relates to an ecology concrete purifying tank in rivers and water areas of shores, which is used for carrying out river closure and purifying water bodies of rivers and pollutants in rainfall runoff. The utility model is characterized in that the upper end of a post is connected with an ecology concrete tank, and geotextile is laid under the ecology concrete tank; the geotextile is provided with a broken stone mattress to form a planting zone for plants. The utility model uses the ecology concrete tank to plant emerging plants, and can enable the emerging plants to be limited to grow in the tank, which ensures that the emerging plants can not spread to encroach river channels; when sewage enters into water areas of shores of the river channels, SS (solid suspended substances) can be intercepted and blocked by fillers and roots of plants, and organic substances can be cleaned through the effects of adsorption, assimilation, and dissimilation of a biological film; planted emerging plants of reeds, zizaniae grasses, or calamus, etc. can form landscapes with green plants in water areas of shores of the river channels. The utility model can carry out mass production in industries, and can form prefabricated parts; the utility model basically avoids the inconvenience and the adverse effect which are brought by site operations, and only needs to be installed on bank slopes of the river channels at site.

Description

River Bin Shui is with ecological concrete purification tank

Technical field

The utility model relates to a kind of channel revetment facility of purifying contaminated water quality, particularly dams and the river Bin Shui that purifies the pollution substance in river water and the rainfall runoff is with ecological concrete purification tank.

Background technology

Before the present utility model, existing channel revetment technological method and facility roughly have natural style shore protection, hard shore protection and ecology typed bank revetment etc.

The natural style bank protection method be exactly plant growing with well developed root system on the riverbank, make it solid native sand prevention, prevent erosion, satisfy the ecotope needs, keep the natural landscape effect simultaneously; But this method exist because of long period of soaking under water or the excessive defective that causes its poor stability of river course flow velocity, very easily formed zanjon by rain drop erosion, destroy bank protection, very limited to the scavenging(action) of the pollution substance that enters the river course with face source form, and floor space is big.

The hard bank protection method typically refers on the riverbank to adopt and grouts or structures such as placed rockfill, onsite concrete, precast concrete block, especially mostly adopts this vertical type concrete retaining wall in the city river shore protection engineering.These structures are taken up an area of less, for the stability that keeps the riverbank, prevent erosion and flood control safety all has certain effect, but also in varying degrees to the landscape environment on riverbank with ecologically produced bad influence, or even destruction; The reaction that hydration reaction, carbonization reaction and the various additive (as hardening accelerator, antifreezing agent, swelling agent etc.) of its material therefor (comprising the alkalization aggregate) take place in water has influenced the water body quality; Its closing form that riverbank is taked makes plant and microorganism be difficult in this existence procreation, havoc species diversity, cause the water body and the land deterioration of the ecological environment, the pollution substance that enters the river course with face source form is difficult to remove, construction volume is also bigger, and cost is quite high.

The ecological revetment technological method that generally adopts has multiple mode at present; as adopt geotechnological material aggregate species phytyl; wire netting and rubble aggregate species phytyl; the solid soil species phytyl of geotechnique's material; the vegetation type eco-concrete; cement ecospecies phytyl and soil-solidified-agent etc. are to protecting on the riverbank; to stablizing the bank slope structure better effects is arranged; and the bank slope view there has been certain improvement; but to go into the effect of river pollutent very limited to holding back the face source; and organic glued material cost is so high; must construct then and there and construction volume also very big, therefore promote the use of and be greatly limited.

In addition, also have and directly directly plant emergent, but emergent spreads easily, occupy the river course, influence the normal flood passage and the shipping function in river course on the riverbank.

Summary of the invention

The purpose of this utility model just is to overcome the defective separately of above-mentioned various channel revetment technological methods, develops a kind of comprehensive effect good channel revetment technological method and facility.

The technical solution of the utility model is:

River Bin Shui is with ecological concrete purification tank, is primarily characterized in that the stake upper end connects ecological concrete groove, and the lower berth geotextile has blotter in the ecological concrete groove on the geotextile, forms the plant growing district.

Its further technical scheme is:

River Bin Shui is with ecological concrete purification tank, and its technical characterictic is in the plant growing district filler to be set, and filler is soil, sandstone.

Advantage of the present utility model and effect are to play the effect of retaining soil, and the protection bank stabilization prevents bank erosion and soil erosion, has good water-permeable and the performance of disposing of sewage simultaneously.Water in the river course or rainfall runoff polluted water enter river course Bin Shui band, in the mode of seepage flow, enter the river course through after the purifying treatment of system.Ecological concrete itself has a large amount of communicating apertures, adhere to a large amount of microorganisms easily, a large amount of microorganisms and form microbial film have also grown for filler such as soil, sandstone and root system of plant surface, when sewage enters river course Bin Shui band, SS in the runoff (suspended solid) stops by filler and root system of plant and holds back, and organicly removed by biomembranous absorption and assimilation, dissimilation; Root system of plant discharges the transmission of oxygen, make and occur aerobic, anoxic and anaerobism phenomenon and alternate environment around it in the microenvironment successively, thereby guaranteed that the nitrogen in the sewage, phosphorus can not only directly be absorbed as nutrition by plant and microorganism, but also can remove from runoff the excess accumulation effect of phosphorus by nitrated, denitrification and microorganism, reach and hold back purpose and the effect that pollutent enters the river course; By filler being regularly replaced and gathers in plant, finally pollutent is thoroughly disposed from the river course system.

The utility model utilizes ecological concrete groove plantation emergent, makes emergent be limited in growth in the groove, can not spread and occupy the river course, influences the normal flood passage and the shipping function in river course.The emergents such as reed, hay grass or calamus of plantation have formed the green plants view at river course Bin Shui band.The utility model can be produced in enormous quantities on industry, forms prefabricated component, avoids the inconvenience of site operation and the detrimentally affect that brings substantially, as long as install on the river course bank slope at the scene.

Description of drawings

Fig. 1---the utility model river Bin Shui is with ecological concrete purification tank sectional schematic diagram.

Fig. 2---ecological concrete structural representation.

Embodiment

As shown in Figure 1, 2, on the river in river course Bin Shui band bank slope slope angle 1, squeeze into two campsheds, 2, two campsheds 2 at regular intervals and link together, cover geotextile 3 at an upper portion thereof, place mat blotters 4 above the geotextile 3, on place ecological concrete groove 5; One side of ecological concrete groove 5 higher high-end 8 towards bank slope one side to keep off soil, lower low side 9 is one side towards the river course, fillers 6 such as dress soil, sandstone in the ecological concrete groove 5, and plant emergents 7 such as reed, hay grass or calamus therein, form river Bin Shui and be with ecological concrete purification tank.

When the water in the river course or rainfall runoff contaminated water flow during through the utility model, because ecological concrete groove 5 has good water-permeable, sewage enters in the ecological concrete groove 5, part suspended solids SS is held back by filler 6 and emergent 7 root systems in the water, the eutrophy compositions such as nitrogen phosphorus that the emergent 7 of plantation in the groove absorbs in the sewage, emergent 7 rhizome surfaces, ecological concrete 5 surfaces and filler 6 surfaces generate microbial film absorption degradation water pollutant, and last sewage flows into the river course through holding back the purification back largely.

Because emergent is limited in growing in the ecological concrete groove, can not spread in the river course and go, therefore can not occupy the river course, influence river course flood and shipping function.The emergent of plantation can be selected as required, as reed, hay grass or calamus etc., and not only is confined to description of the present utility model.By in time, periodic replacement filler and harvesting plant, can finally from the river course, remove pollutent.

Ecological concrete groove 5 of the present utility model can prefabricated production in factory, installs at the scene then get final product, and is very simple, make things convenient for, and adopts ecological concrete to make, not only firm but also have a water-permeable.

Claims

1. river Bin Shui is with ecological concrete purification tank, it is characterized in that the stake upper end connects ecological concrete groove, and the lower berth geotextile has blotter in the ecological concrete groove on the geotextile, forms the plant growing district.

2. river Bin Shui according to claim 1 is with ecological concrete purification tank, it is characterized in that in the plant growing district filler being set, and filler is soil, sandstone.

3. river Bin Shui according to claim 1 is with ecological concrete purification tank, it is characterized in that ecological concrete groove one side height, and opposite side is low.