Hardening river water body ecological purification treatment process
The invention belongs to river water quality processing technology field, be specifically related to a kind of hardening river water body ecological purification treatment process.
Because China's industrial sewage and sanitary sewage disposal relatively lag behind, the public is thin to the consciousness of environment protection in addition, and the situations in a large amount of industry, the unprocessed and in line river course of sanitary sewage frequently occur, and cause river water quality generally to worsen.Concrete, grout shore protection etc. and there is positive effect for the flood control ability that improves city river, but the hardening of also having aggravated river course simultaneously, associate naturally between the ecosystem inside and outside river course upstream and downstream and river course is exerted an influence, make river course plant be difficult to even cannot grow, destroy the food chain of river channel ecology system, and then threaten the existence of aquatic animals and plants, have a strong impact on river channel ecology system balancing and diversity of organism.In addition, canalization river course has changed the cranky natural form in river artificially, makes the heterogeneous reduction of water body environment, has finally aggravated the degeneration of river ecosystem.
Along with the quickening of socioeconomic development and town and country construction paces, in River Construction, except water conservancy function, the composite factors such as the garden landscape in river course, ecological, environmental protective, the art of architecture are constantly paid attention to.
Contaminated river course not only view is poor, and because of a large amount of endogenous biological lakes, downstream of injecting, thereby bring serious impact to lake water quality and ecology.The method of both at home and abroad polluted river channel being administered at present, mainly contains Physical, chemical method and biological process.Physical is as removed river channel sedimentation thing, machinery except algae, artificial aeration, etc.; Chemical method, as adopted chemical reagent except algae, adds the precipitation of molysite promotion phosphorus, etc.; Biological process is repaired and biological floating bed as artificial swamp processing, hydrophyte restoration, microorganism, etc.But, cause its production system havoc because river course suffers long-term chronic pollution, thereby the method that relies on merely physics and chemistry is administered the effect that only can play Zhi Biao but not effect a permanent cure to polluted river channel.Only start with from the structure and function that recovers river ecosystem, utilize comprehensive ecological reestablishment to improve basic environment, recover waterplant, build eucyclic aquatic ecosystem, could fundamentally improve water quality, improve water body self-purification ability, play this double effect of controlling of table.Therefore, utilize the mechanism solution hardening river course water pollution problems of river water body self-purification process just becoming a kind of trend of river training water quality.But, due in prior art to hardening river water body purifying treatment ubiquity apparatus structure complexity, the shortcoming such as the cycle of operation is short, cost is high, economic serviceability is not strong, thereby restricted its application.
In disclosed Chinese patent literature, can be seen in the technical intelligence about river water body purifying treatment, for example application for a patent for invention publication No. CN103190273A recommends to have " the ecological reconstruction technological method of a kind of outskirts of a town hardening revetment ", the positive effect of this patent application scheme is to beautify river course revetment view (revetment ecological reconstruction), avoids river course sloping bank soil erosion.And for example CN103061311A provides " beautifying and restoration of the ecosystem device and method of a kind of city river hardening revetment ", and this patent application scheme and aforementioned CN103190273A have the effect playing the same tune on different musical instruments.In addition, because this CN103061311A need prepare ecological brick case, thereby cost is high, and complicated operation, manages and protects expense large, especially owing to also needing training wall, wet-pit and water supply line, etc., thereby structure is comparatively complicated, promoted extension is restricted.Particularly due to aforementioned two patent application schemes for be river course revetment, thereby do not there is referential meaning for hardening river water body ecological purification.
Chinese invention patent Granted publication CN102160522B introduces " a kind of implantation methods of hard artificial landscape water-body aquatic plants ", it is that the coconut palm monofilament of filled natural vegetable fibre in biodegradable fiber braiding mesh bag is as the carrier of plant-growth, different waterplant seed kinds are put into the carrier of plant-growth, again the biodegradable fiber braiding mesh bag of broadcasting waterplant seed kind is placed in to water-bed hardening or the poor water body of water-bed matrix, or treat the plant seed kind germination in plant-growth carrier, after growth, be placed on again water-bed hardening or the poor water body of water-bed matrix.This patent scheme can produce the active effect that river water body is purified, specifically can be referring to the 0015th to 0017 section, the specification sheets of this patent.But there is following shortcoming: one, owing to showing as bagged structure, thereby sparse density refractory while throwing in to river water body is to hold, add that river course exists natural grade, if too intensive while input, be prone to stack effect, if throw in too sparse, can affect ecological purification ability, no matter and be too intensive or sparsely all can exert an influence to landscape effect; Its two, owing in use the biodegradable fiber braiding mesh bag that is implanted with seed kind being thrown in river course, thereby make to a certain extent riverbed raise, and flood carrying capacity exerted an influence; They are three years old, because degradable braiding mesh bag is difficult to be attached to river course domatic (riverbed is domatic), tend to incline collection to position, the lowest point, riverbed, thereby the ecological environmental condition that is difficult to provide for Riparian Zone microflora and vegetation growth expectation, nothing is helped in the mechanical stability that improves Riparian Zone.
Summary of the invention
Task of the present invention is to provide one to contribute in biological restoration mode, hardening river water quality to be administered and uses raising water body self-purification ability, be conducive to the sparse density of waterplant to control and use and embody desirable natural landscape effect, be of value to and avoid to river course flood discharge to exert an influence and use the normal performance of the basic function that ensures river course and have the hardening river water body ecological purification treatment process of being convenient to use for Riparian Zone microflora and vegetation growth create environment the mechanical stability that improves Riparian Zone.
Task of the present invention completes like this, and a kind of hardening river water body ecological purification treatment process, comprises the following steps:
A) preposition preparation, builds the ecological purifier on the riverbed for rendering to hardening river course;
B) plantation, by steps A) planting aquatic plants on the ecological purifier that obtains;
C) throw in, the ecological purifier that kind is implanted with to waterplant is invested on the riverbed in hardening river course, and makes ecological purifier with respect to riverbed airborne, by growth in waterplant to hardening river water body ecological purification.
In a specific embodiment of the present invention, described hardening river course refers to that riverbed is that hardening cement or the riverbed that is covered with pebbles and shore protection are the river course that cement shore protection or stone are refuted shore protection.
In another specific embodiment of the present invention, aforesaid ecological purifier comprises water plant planting-bed bed body and for supporting one group of bed body support column of water plant planting-bed bed body, on water plant planting-bed bed body, offer water plant planting hole with interval state, and the top of water plant planting-bed bed body and one group of bed body support column is fixed, and one group of bed body support column at the state of use lower support on the riverbed in described hardening river course, described water plant planting is in described water plant planting hole, between described water plant planting-bed bed body and described riverbed, maintain the distance of soaring, this distance of soaring is consistent with the height of bed body support column.
In another specific embodiment of the present invention, the described water plant planting-bed bed length of body and the ratio of width are 1: 0.5, and the thickness of this water plant planting-bed bed body is 2-3 ㎝; The height of one group of described bed body support column is respectively 15-25 ㎝, and diameter is 8-12 ㎝.
In another specific embodiment of the present invention, described water plant planting-bed bed body is that Steel Concrete is cast a body; One group of described bed body support column is that Steel Concrete is cast post.
Also have in a specific embodiment of the present invention, the length of described water plant planting-bed bed body is 80-120 ㎝, and width is 40-60 ㎝.
More of the present invention and in a specific embodiment, the diameter in described water plant planting hole is 1-3 ㎝.
In of the present invention and then a specific embodiment, described waterplant is emergent and/or floating plant.
Of the present invention again more and in a specific embodiment, described slotting water plant is calamus and/or lotus; Described floating plant is water lily.
In again of the present invention and then a specific embodiment, on described water plant planting-bed bed body and in the position formation corresponding to described body support column, be useful on the fixed orifices fixing with bed body support column.
Technical scheme provided by the invention is owing to the ecological purifier of planting aquatic plants being invested in to the riverbed in hardening river course, thereby can embody and with biological mode, river water quality be administered, and recovers and improves water body self-purification ability; Due to waterplant is planted on ecological purifier with planting patterns, thereby sparse density is controlled, can embody excellent natural landscape effect, can guarantee again the ecological purification effect to water body; Because ecological purifier is with respect to riverbed airborne, thereby neither can raise riverbed, also can not exert an influence to flood discharge; Because the waterplant being distributed on ecological purifier can be Riparian Zone microflora and vegetation create environment, thereby be conducive to improve the mechanical stability of Riparian Zone; Because waterplant has the effect that area source pollutants is effectively removed, thereby can reduce into river pollution load ultimate attainmently.
Brief description of the drawings
Fig. 1 is the cross sectional representation of the inventive method to hardening river water body ecological purification.
Fig. 2 is the concrete structure figure of the ecological purifier shown in Fig. 1.
A plurality of ecological purifiers of structure shown in Fig. 2 are implemented assembled schematic diagram by Fig. 3.
Refer to Fig. 1 to Fig. 3.
Hardening river water body ecological purification treatment process of the present invention comprises the following steps:
A) preposition preparation, build make by Fig. 1 illustrate and be shown in detail by Fig. 2 for rendering to the ecological purifier 2 on the riverbed 11 in hardening river course 1, this ecological purifier 2 comprises that water plant planting-bed bed body 21 and one group are for supporting the bed body support column 22 of water plant planting-bed bed body 21, on water plant planting-bed bed body 21, offer the water plant planting hole 211 of diameter as 2 ㎝ taking interval state, because the major function in this water plant planting hole 211 is fixing waterplant 3 as shown in Figure 1, thereby also can be defined as waterplant fixed orifices or waterplant pilot hole, waterplant 3 is transplanted on water plant planting hole 211, waterplant 3 just taking rely on the aquatic length in river course as carrier.In the present embodiment, the length of water plant planting-bed bed body 21 is 100 ㎝, width is 50 ㎝, and thickness is 2 ㎝, the height of bed body support column 22 is 20 ㎝, and diameter is 10 ㎝, and water plant planting-bed bed body 21 waters making sheet for Steel Concrete, be that Steel Concrete is cast a body, and bed body support column 22 is cast post for Steel Concrete.For water plant planting-bed bed body 21 and the top of bed body support column 22 are fixed, thereby having fixed orifices 212 in the each formation in four bights of water plant planting-bed bed body 21, a reinforcing bar that forms bed body support column 22 exposes the end face of body support column 22 2 ㎝ and is insinuated in fixed orifices 212.The diameter of fixed orifices 212 should adapt with the diameter of reinforcing bar, and for example, when reinforcing bar is 0.8 ㎝, the diameter of fixed orifices 212 is 0.8 ㎝, so obtains complete ecological purifier 2;
B) plantation, by steps A) planting aquatic plants 3 on the water plant planting hole 211 of the water plant planting-bed bed body 21 of the ecological purifier 2 that obtains, here the planting aquatic plants 3 said is to transplant and to be positioned on water plant planting hole 211 through the waterplant 3 of cultivation, waterplant can be both emergent, also can be floating plant, it can also be the combination of emergent and floating plant, emergent is not limited to calamus, lotus etc., floating plant is not limited to water lily, etc.;
C) throw in, according to the width in the riverbed 11 in hardening river course 1, the ecological purifier of the single cell shown in Fig. 22 is implemented to assembling combination by shown in Fig. 3, and be invested in the riverbed 11 in hardening river course 1, because the width of the bed body support column 22 of the ecological purifier 2 in the present embodiment is 20 ㎝, therefore between water plant planting-bed bed body 21 and riverbed 11, maintain the distance of soaring of 20 ㎝, that is to say that water plant planting-bed bed body 21 is with respect to riverbed 11 airbornes, by the waterplant 3 in process of growth to hardening river water body ecological purification.Hardening river course described in the present embodiment refers to that riverbed 11 is that hardening cement or riverbed and the shore protection that is covered with pebbles are the river course that cement or stone are refuted shore protection.
In the time that river level is more shallow, water volume flow rate is slow, flow is little, the waterplant 3 of slowly flowing through on water plant planting-bed bed body 21, can effectively improve the time of water body and plant contact, increase waterplant 3 and water pollutant contact reacts time, thereby reach the object of removing water pollutant, improving water quality.Waterplant 3 provides carrier for microorganism species, contribute to the Fast Growth of microorganism, utilize microbe to decompose and reach the object purifying water, the secretory product of microorganisms can play biological flocculation, the settling property of enhanced granule thing simultaneously.When the water yield is large, water plant planting-bed bed body 21 has adjusting current, plays the effect of the interim storage water yield, the water of storage in the time of dry season for plant root provides moisture.And water plant planting hole 211 is equal to ventilating pit, for inside and outside Medium Exchange.The Steel Concrete connecting between cover plate wraps in cover plate, is not easy to occur slight crack, and water can not enter reinforcing bar inside, has strengthened its weather resistance, erosion resistance, has kept again appearance looks elegant.
Only change respectively length, width and the thickness of water plant planting-bed bed body 21 into 120 ㎝, 60 ㎝ and 3 ㎝, change the diameter in water plant planting hole 211 into 3 ㎝; Change respectively the height of bed body support column 22 and diameter into 15 ㎝ and 8 ㎝.All the other are all with the description to embodiment 1.
Only change respectively length, width and the thickness of water plant planting-bed bed body 21 into 80 ㎝, 40 ㎝ and 2.5 ㎝, change the diameter in water plant planting hole 211 into 2.5 ㎝; Change respectively the height of bed body support column 22 and diameter into 20 ㎝ and 12 ㎝.All the other are all with the description to embodiment 1.