CN105523638A - Treatment method for malodorous black water body - Google Patents
Treatment method for malodorous black water body Download PDFInfo
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- CN105523638A CN105523638A CN201610022003.4A CN201610022003A CN105523638A CN 105523638 A CN105523638 A CN 105523638A CN 201610022003 A CN201610022003 A CN 201610022003A CN 105523638 A CN105523638 A CN 105523638A
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- algae
- water
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- district
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Abstract
The invention relates to the field of treatment of water bodies, specifically to a treatment method for a malodorous black water body. The treatment method can reduce nitrogen and phosphorus contents in the malodorous black water body and improve oxygen content in the malodorous black water body, thereby fundamentally and effectively treating the malodorous black water body; and the method overcomes the disadvantages of poor treatment effect and low treatment efficiency to the malodorous black water body in the prior art. According to the treatment method for the malodorous black water body provided by the embodiment of the invention, the malodorous black water body flows along a river, and the following steps are carried out: step 1) introducing the malodorous black water body as a culture solution into a microalgae culture area; step 2), cultivating microalgae in the microalgae culture area with the malodorous black water body, and allowing oxygen generated by photosynthesis of the microalgae to be dissolved in the malodorous black water body so as to form an oxygen-enriched water body; and step 3), introducing the oxygen-enriched water body back to the river.
Description
Technical field
The present invention relates to water body treating field, particularly relate to a kind of administering method of black and odorous water.
Background technology
Along with industrialized development, the discharge of trade effluent and domestic water makes river suffer organic contamination to become eutrophic water body, microorganism is oxygen consumption amount reproduction in this water body, the oxygen in water body is made to be consumed totally, cause water hypoxia, and in anoxic water body, organic pollutant is formed a large amount of sulfide by anaerobic digestion, water body is turned black smelly, form black and odorous water hydrogen sulfide wherein and cause topsoil.
In the prior art, usually by two kinds of methods, this black and odorous water is administered, one is aeration, and aeration is by passing into air or oxygen in this black and odorous water, to improve the oxygen level in water body, need to pass into a large amount of oxygen-containing gass when adopting the method to administer black and odorous water, in large scale, meanwhile, employing the method can not reduce the concentration of nitrogen and phosphorus in described water body, therefore, the black smelly problem of water body can not fundamentally be solved; Another kind is planting plants method, nitrogen phosphorus in this black and odorous water can be absorbed by the method, but, the oxygen that in the method, herbaceous plant carries out photosynthesis generation is released in air through blade, be difficult to solve the problem that in black and odorous water, dissolved oxygen amount is low, therefore, regulation effect is not obvious, and governance efficiency is low.
Summary of the invention
Main purpose of the present invention is, provides a kind of administering method of black and odorous water, can reduce the nitrogen and phosphorus content in described black and odorous water, meanwhile, can improve the oxygen level in described black and odorous water, thus can fundamentally effectively administer water body.
For achieving the above object, the present invention adopts following technical scheme:
The embodiment of the present invention provides a kind of administering method of black and odorous water, it is characterized in that, described black and odorous water, along channel flow, comprising:
Step 1) black and odorous water is drained into both culturing microalgae district as nutrient solution;
Step 2) cultivate with micro-algae of described black and odorous water to both culturing microalgae district, the oxygen dissolution that micro-algae carries out photosynthesis generation forms oxygen enrichment water body in described black and odorous water;
Step 3) described river course is gone back in the drainage of described oxygen enrichment water body.
Optionally, described both culturing microalgae district comprises the inoculation culture zone that has the solid-state carrier of micro-algae or/and micro-algae dissociates.
Preferably, described method also comprises: near described river course, build both culturing microalgae district.
Optionally, near described river course, build both culturing microalgae district to comprise:
Near described river course, build a fluid stream channel, at least one inoculation had the solid-state carrier of micro-algae to swim in a described fluid stream channel; Or/and, culture zone of being dissociated by least one micro-algae is arranged in described fluid stream channel, the culture zone of dissociating of micro-algae described in each is provided with entrance and outlet, and described entrance and exit is all provided with separation net, and described separation net intercepts micro-algae that described micro-algae dissociates in culture zone and flows out;
Described both culturing microalgae district is communicated with water outlet ring-type with the water-in in described river course by fluid stream channel, and wherein, the water outlet in described river course and water-in are intervally arranged along the flow direction of water body.
Preferably, near described river course, build both culturing microalgae district comprise: culture zone of being dissociated by least one micro-algae is arranged on by described river course, the culture zone of dissociating of micro-algae described in each is provided with entrance and outlet, described entrance and exit is all provided with separation net, and described separation net intercepts micro-algae outflow that described micro-algae dissociates in culture zone;
Described both culturing microalgae district is communicated with the water outlet in described river course by the first pipeline, and described both culturing microalgae district is communicated with by the water-in of second pipe with described river course, and wherein, the water outlet in described river course and water-in are intervally arranged along the flow direction of water body.
Further preferred, when described micro-algae dissociate culture zone be two or more time, described micro-algae culture zone of dissociating is sequentially arranged in a described fluid stream channel along the flow direction of water body; Or described micro-algae culture zone of dissociating to be sequentially arranged near river course and serial communication successively along the flow direction of water body, and micro-algae described in each dissociates, the entrance of culture zone is arranged along water body flow direction successively with outlet; The water-in in described both culturing microalgae district is the entrance of culture zone of dissociating along first micro-algae of water body flow direction arrangement, and the water outlet in described both culturing microalgae district is the outlet of culture zone of dissociating along last micro-algae of water body flow direction arrangement; Or described micro-algae culture zone of dissociating is arranged in order along the width of described fluid stream channel; Or described micro-algae culture zone of dissociating is arranged in order along apart from described river course distance on bank, described river course, the dissociate entrance of culture zone of micro-algae described in each is arranged along water body flow direction successively with outlet; The dissociate number of culture zone of number and described micro-algae of the water-in in described both culturing microalgae district is identical, and the water-in in described both culturing microalgae district respectively one_to_one corresponding to dissociate the entrance of culture zone for algae micro-described in each, the dissociate number of culture zone of number and described micro-algae of the water outlet in described both culturing microalgae district is identical, and the water outlet in described both culturing microalgae district respectively one_to_one corresponding to dissociate the outlet of culture zone for algae micro-described in each.
Optionally, described have the solid-state carrier of micro-algae to swim in described fluid stream channel to comprise by least one inoculation: described solid-state carrier successively interval swims in a described fluid stream channel by the flow direction along described water body, and described solid-state carrier is uniformly distributed along the width of described fluid stream channel.
Preferably, culture zone of being dissociated by least two described micro-algaes is sequentially arranged in a described fluid stream channel along the flow direction of water body; Or/and culture zone of being dissociated by least two described micro-algaes to be sequentially arranged near river course and serial communication successively along the flow direction of water body, and micro-algae described in each dissociates, the entrance of culture zone is arranged along water body flow direction successively with outlet; The water-in in described both culturing microalgae district is the entrance of culture zone of dissociating along first micro-algae of water body flow direction arrangement, and the water outlet in described both culturing microalgae district is the outlet of culture zone of dissociating along last micro-algae of water body flow direction arrangement.
Optionally, being provided with the dissociate region of culture zone of solid-state carrier or micro-algae in both culturing microalgae district is oxygen-rich area, and all the other regions are oxygen consumption district; Describedly black and odorous water drained into both culturing microalgae district as nutrient solution comprise:
Regulate the water flow draining into described both culturing microalgae district, make the water body oxygen level of described oxygen-rich area be not less than 4mg/L, the water body oxygen level in oxygen consumption district is not less than 2mg/L.
Preferably, described method also comprises: stir the water body that algae micro-described in each dissociates in culture zone, improves micro-algae described in each and to dissociate the photosynthesis of the micro-algae in culture zone.
The administering method of a kind of black and odorous water that the embodiment of the present invention provides, by described black and odorous water drainage is flowed through both culturing microalgae district, micro-algae is cultivated, make micro-algae nitrogen phosphorus consumed in described black and odorous water carry out photosynthesis to produce oxygen, oxygen dissolution forms oxygen enrichment water body in described black and odorous water, again described oxygen enrichment water body is drained in described river course, the dissolved oxygen amount of black and odorous water in described river course can be increased, reduce the nitrogen and phosphorus content in described black and odorous water, thus effectively can administer described black and odorous water.Overcome the defect that in prior art, the regulation effect of black and odorous water is not good enough and governance efficiency is low.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schema of the administering method of a kind of black and odorous water that Fig. 1 provides for the embodiment of the present invention;
A kind of structural representation building both culturing microalgae district near described river course that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 builds the structural representation in both culturing microalgae district for another kind that the embodiment of the present invention provides near described river course;
Fig. 4 builds the structural representation in both culturing microalgae district for another kind that the embodiment of the present invention provides near described river course;
Fig. 5 builds the structural representation in both culturing microalgae district for another kind that the embodiment of the present invention provides near described river course;
Fig. 6 builds the structural representation in both culturing microalgae district for another kind that the embodiment of the present invention provides near described river course;
Fig. 7 builds the structural representation in both culturing microalgae district for another kind that the embodiment of the present invention provides near described river course.
Embodiment
Now will provide the reference of embodiment of the present invention in detail, one or more example is described in hereafter.The illustratively unrestricted the present invention of each example is provided.In fact, to those skilled in the art, it is evident that, can numerous modifications and variations be carried out to the present invention and not deviate from scope of the present invention or spirit.Such as, as an embodiment part and to illustrate or the feature that describes may be used in another embodiment, produce further embodiment.Therefore, based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Material involved by the embodiment of the present invention all can obtain by commercial sources or by applicant.
See Fig. 1, the schema of the administering method of a kind of black and odorous water provided for the embodiment of the present invention, described black and odorous water, along channel flow, comprising:
Step 1) black and odorous water is drained into both culturing microalgae district as nutrient solution;
Step 2) cultivate with micro-algae of described black and odorous water to both culturing microalgae district, the oxygen dissolution that micro-algae carries out photosynthesis generation forms oxygen enrichment water body in described black and odorous water;
Step 3) described river course is gone back in the drainage of described oxygen enrichment water body.
The administering method of a kind of black and odorous water that the embodiment of the present invention provides, by described black and odorous water drainage is flowed through both culturing microalgae district, micro-algae is cultivated, make micro-algae nitrogen phosphorus consumed in described black and odorous water carry out photosynthesis to produce oxygen, oxygen dissolution forms oxygen enrichment water body in described black and odorous water, again described oxygen enrichment water body is drained in described river course, the dissolved oxygen amount of black and odorous water in described river course can be increased, reduce the nitrogen and phosphorus content in described black and odorous water, thus effectively can administer described black and odorous water.Overcome the defect that in prior art, the regulation effect of black and odorous water is not good enough and governance efficiency is low.
Wherein, described both culturing microalgae district is not limited.In one embodiment of the invention, described both culturing microalgae district comprises the inoculation culture zone that has the solid-state carrier of micro-algae or/and micro-algae dissociates.
Wherein, the setting position in described both culturing microalgae district is not limited.Such as, described both culturing microalgae district can be arranged near described river course; Again such as, when described river course has natural tributary, described both culturing microalgae district can be arranged in described tributary.Certainly, also can build a fluid stream channel near described river course, and described both culturing microalgae district is arranged in a described fluid stream channel.
Concrete, both culturing microalgae district only can comprise the solid-state carrier that inoculation has micro-algae, also only can comprise micro-algae and to dissociate culture zone, and also not only can comprise inoculation has the solid-state carrier of micro-algae but also comprise micro-algae and to dissociate culture zone.Such as, the solid-state carrier of micro-algae can be had every placing multiple inoculation in the middle of a fluid stream channel in described river course, between every two spaced solid-state carriers, arrange micro-algae again to dissociate culture zone, certainly, in the fluid stream channel in described river course, also can arrange arbitrarily inoculation has the solid-state carrier of micro-algae and micro-algae to dissociate culture zone.
In one embodiment of the invention, described method also comprises: near described river course 2, build both culturing microalgae district 1.
In one embodiment of the invention, see Fig. 2 and Fig. 3, near described river course 2, build both culturing microalgae district 1 comprise:
Near described river course 2, build a fluid stream channel 21, at least one inoculation had the solid-state carrier 11 of micro-algae to swim in a described fluid stream channel 21; Or/and, culture zone 12 of being dissociated by least one micro-algae is arranged in described fluid stream channel 21, the culture zone 12 of dissociating of micro-algae described in each is provided with entrance and outlet, and described entrance and exit is all provided with separation net, and described separation net intercepts micro-algae that described micro-algae dissociates in culture zone 12 and flows out;
Described both culturing microalgae district 1 is communicated with water outlet ring-type with the water-in in described river course 2 by a fluid stream channel 21, and wherein, the water outlet in described river course 2 and water-in are intervally arranged along the flow direction of water body.
In embodiments of the present invention, see Fig. 2 and Fig. 3, when described both culturing microalgae district 1 is communicated with water outlet ring-type with the water-in in described river course 2 by a fluid stream channel 21, black and odorous water along water body flow direction (as shown in arrow a in figure) from as described in the water outlet in river course 2 flow to as described in a fluid stream channel 21, described black and odorous water flows through the both culturing microalgae district 1 in a described fluid stream channel 21 along described fluid stream channel 21, and the water-in through described river course 2 enters in described river course 2.
Wherein, when in described fluid stream channel 21, not only solid-state carrier 11 had been set but also arrange micro-algae dissociate culture zone 12 time, the dissociate number of culture zone 12 and relative position of described solid-state carrier 11 and described micro-algae is not all limited.Be respectively example be described only to arrange solid-state carrier 11 and only to arrange micro-algae culture zone 12 of dissociating in embodiments of the present invention.
Wherein, the float position of described solid-state carrier 11 in described fluid stream channel 21 is not limited, in one embodiment of the invention, see Fig. 2, described solid-state carrier 11 successively interval swims in a described fluid stream channel 21 by the flow direction along described water body, and described solid-state carrier 11 is uniformly distributed along the width of described fluid stream channel 21.
When the black and odorous water in river course 2 flows through described fluid stream channel 21, micro-algae on solid-state carrier 11 carries out photosynthesis and produces oxygen in the black and odorous water that is dissolved in and flows through described solid-state carrier 11 and form oxygen enrichment water body, oxygen flows with described oxygen enrichment water body and spreads in described fluid stream channel 21, the amount of oxygen be dissolved in described black and odorous water is limited, along with the diffusion of oxygen, dissolved oxygen amount in oxygen enrichment water body diminishes gradually, in embodiments of the present invention, described fluid stream channel 21 arranges solid-state carrier 11 along interval, water body flow direction, a described fluid stream channel 21 is made just to have oxygen to be dissolved in described black and odorous water at interval of certain distance, thus the dissolved oxygen amount of each position in a described fluid stream channel 21 can be ensured, and described solid-state carrier 11 is uniformly distributed along the width of described fluid stream channel 21, the width dissolved oxygen amount along described fluid stream channel 21 can be made comparatively even, and in water body flow process, make the dissolved oxygen amount of the black and odorous water in whole fluid stream channel 21 comparatively even.
Wherein, when described solid-state carrier 11 is swum in described black and odorous water, because water body constantly washes away described solid-state carrier 11 in flow process, when the material of described solid-state carrier 11 is soft material, be easily damaged; Preferably, when the material of described solid-state carrier 11 is hard material, can described solid-state carrier 11 directly be swum in described black and odorous water, when described solid-state carrier 11 is soft material, described solid-state carrier 11 can be fixed in solid frame, more described solid frame is swum in described black and odorous water.
Wherein, do not limit the fixed form of described solid-state carrier 11, described solid-state carrier 11 can be relative fixing with described fluid stream channel 21 by the mode of tractive.
Wherein, do not limit described micro-algae culture zone 12 of dissociating, described micro-algae culture zone 12 of dissociating can be raceway pond, circular pond or plate-type reactor etc.
When culture zone 12 of being dissociated as micro-algae by described raceway pond is arranged in a described fluid stream channel 21, and described both culturing microalgae district 1 is when being communicated with described river course 2 ring-type by described fluid stream channel 21, in order to realize the free cultivation of micro-algae and make micro-algae can not flow out described raceway pond outside, concrete, raceway pond is placed in a described fluid stream channel, the pool wall height of described raceway pond is higher than the water surface of described fluid stream channel, described raceway pond has entrance and outlet, and described entrance and exit all arrange the separation net of isolating micro-algae and passing in and out, micro-algae is made to be isolated in described raceway pond, when black and odorous water flows through described fluid stream channel 21, black and odorous water by the entrance of described raceway pond and outlet flow through described raceway pond, free cultivation is carried out to the micro-algae in described raceway pond, when described plate-type reactor culture zone 12 of dissociating as micro-algae is arranged in a described fluid stream channel 21, and described both culturing microalgae district 1 is when being communicated with described river course 2 ring-type by described fluid stream channel 21, in order to realize the free cultivation of micro-algae and make micro-algae can not flow out described plate-type reactor outside, concrete, plate-type reactor is placed in a described fluid stream channel 21, described plate-type reactor has entrance and outlet, and described entrance and exit all arrange the separation net of isolating micro-algae and passing in and out, micro-algae is made to be isolated in described plate-type reactor, when black and odorous water flows through described fluid stream channel 21, black and odorous water by the entrance of described plate-type reactor and outlet flow through described plate-type reactor, free cultivation is carried out to the micro-algae in described plate-type reactor.
In another embodiment of the present invention, see Fig. 4, near described river course 2, build both culturing microalgae district 1 comprise: it is other that culture zone 12 of being dissociated by least one micro-algae is arranged on described river course 2, the culture zone 12 of dissociating of micro-algae described in each is provided with entrance and outlet, described entrance and exit is all provided with separation net, and described separation net intercepts micro-algae outflow that described micro-algae dissociates in culture zone 12;
Described both culturing microalgae district 1 is communicated with the water outlet in described river course 2 by the first pipeline 31, described both culturing microalgae district 1 is communicated with the water-in in described river course 2 by second pipe 31, wherein, the water outlet in described river course 2 and water-in are intervally arranged along the flow direction of water body.
In embodiments of the present invention, black and odorous water flows through the both culturing microalgae district 1 on bank, described river course 2 by the first pipeline 31, and is entered in described river course 2 by the water-in that second pipe 32 gets back to described river course 2.
Wherein, do not limit described micro-algae culture zone 12 of dissociating, described micro-algae culture zone 12 of dissociating can be raceway pond, circular pond or plate-type reactor etc.
When using described raceway pond as micro-algae dissociate culture zone 12 be arranged on described bank, river course time, only need the entrance of raceway pond and exit to be arranged the separation net of isolating described micro-algae and passing in and out, and described river course 2 is communicated with the entrance and exit of described raceway pond with second pipe 32 respectively by the first pipeline 31, black and odorous water is entered in described raceway pond through the entrance of described raceway pond, then flows out through the outlet of described raceway pond.
Wherein, when described micro-algae dissociate culture zone 12 for two or more time, do not limit the dissociate arrangement mode of culture zone 12 of described micro-algae, can arranging successively along water body flow direction in described micro-algae culture zone 12 of dissociating, also can unorderedly arrange.Do not limit the mode of connection that described micro-algae dissociates between culture zone 12, described micro-algae dissociates culture zone 12 can serial communication, also can parallel communication, to dissociate culture zone 12 as long as described black and odorous water can be flowed through micro-algae described in each.
In one embodiment of the invention, when described micro-algae dissociate culture zone 12 for two or more time, see Fig. 3, described micro-algae culture zone 12 of dissociating is sequentially arranged in a described fluid stream channel 21 along the flow direction of water body; Or see Fig. 5, described micro-algae culture zone 12 of dissociating to be sequentially arranged near river course 2 and serial communication successively along the flow direction of water body, and micro-algae described in each dissociates, the entrance of culture zone 12 is arranged along water body flow direction successively with outlet; The water-in in described both culturing microalgae district 1 is the entrance of culture zone 12 of dissociating along first micro-algae of water body flow direction arrangement, and the water outlet in described both culturing microalgae district 1 is the outlet of culture zone 12 of dissociating along last micro-algae of water body flow direction arrangement; Or described micro-algae culture zone 12 of dissociating is arranged in order (not shown) along the width of described fluid stream channel 21; Or see Fig. 6, described micro-algae culture zone 12 of dissociating is arranged in order along apart from described river course 2 distance on bank, described river course 2, the dissociate entrance of culture zone 12 of micro-algae described in each is arranged along water body flow direction successively with outlet; The dissociate number of culture zone 12 of number and described micro-algae of the water-in in described both culturing microalgae district 1 is identical, and the water-in in described both culturing microalgae district 1 respectively one_to_one corresponding to dissociate the entrance of culture zone 12 for algae micro-described in each, the dissociate number of culture zone 12 of number and described micro-algae of the water outlet in described both culturing microalgae district 1 is identical, and the water outlet in described both culturing microalgae district 1 respectively one_to_one corresponding to dissociate the outlet of culture zone 12 for algae micro-described in each.
Wherein, when culture zone 12 of being dissociated by described micro-algae is arranged in a described fluid stream channel 21, the micro-algae dissociated in culture zone 12 to algae micro-described in each in the black and odorous water flow process in a fluid stream channel 21 carries out free cultivation; And culture zone 12 of being dissociated by described micro-algae is when being arranged in described 2 bank, river course, described black and odorous water flows through the culture zone 12 of dissociating of micro-algae described in each by pipeline and carries out free cultivation to micro-algae.
In one embodiment of the invention, see Fig. 3, culture zone 12 of being dissociated by least two described micro-algaes is sequentially arranged in a described fluid stream channel 21 along the flow direction of water body; Or see Fig. 5, culture zone 12 of being dissociated by least two described micro-algaes to be sequentially arranged near river course 2 and serial communication successively along the flow direction of water body, and micro-algae described in each dissociates, the entrance of culture zone 12 is arranged along water body flow direction successively with outlet; The water-in in described both culturing microalgae district 1 is the entrance of culture zone 12 of dissociating along first micro-algae of water body flow direction arrangement, and the water outlet in described both culturing microalgae district 1 is the outlet of culture zone 12 of dissociating along last micro-algae of water body flow direction arrangement.
Adopt this arrangement mode, when culture zone 12 of being dissociated by algae micro-described in each is sequentially arranged in a described fluid stream channel 21 along water body flow direction, make described black and odorous water when flowing through described fluid stream channel 21, enter the culture zone 12 of dissociating of micro-algae described in each successively and free cultivation is carried out to micro-algae, can constantly administer the described black and odorous water in flowing, ensure the black and odorous water dissolved oxygen amount of the water inlet in a described fluid stream channel 21 and described river course 2, when culture zone 12 of being dissociated by algae micro-described in each is sequentially arranged in described bank, river course along water body flow direction, dissociate algae micro-described in each culture zone 12 serial communication successively, again whole both culturing microalgae district 1 is communicated with water-in with the water outlet in described river course 2 respectively, pipeline can be reduced, cost-saving.
Wherein, flow black and odorous water being flowed through to the both culturing microalgae district 1 on a described fluid stream channel 21 or bank, river course 2 does not limit, when the mode by described both culturing microalgae consumes nitrogen phosphorus and to produce oxygen oxygen dissolution in described black and odorous water, when the flow of black and odorous water is larger, black and odorous water is very fast at the flow velocity in the both culturing microalgae district on described fluid stream channel 21 or bank, river course 2, at this moment, dissolved oxygen amount in black and odorous water is relatively little, and when the dissolved oxygen amount in black and odorous water is not enough to meet oxygen-consumption, easily cause water body to turn black smelly phenomenon.Preferably, being provided with the dissociate region of culture zone 12 of solid-state carrier 11 or micro-algae in both culturing microalgae district 1 is oxygen-rich area, and all the other regions are oxygen consumption district; Describedly black and odorous water is drained into both culturing microalgae district 1 as nutrient solution comprise: regulate the water flow draining into described both culturing microalgae district 1, make the water body oxygen level of described oxygen-rich area be not less than 4mg/L, the water body oxygen level in oxygen consumption district is not less than 2mg/L.
Wherein, when described both culturing microalgae district 1 is communicated with water outlet ring-type with the water-in in described river course 2 by described fluid stream channel 21, be: build He Ba in the upstream of described fluid stream channel 2 that the water flow flowing into a described fluid stream channel 21 is regulated to the specific implementation that the water flow in the both culturing microalgae district 1 drained in a described fluid stream channel 21 regulates.
When described both culturing microalgae district 1 is communicated with the water outlet in described river course 2 by the first pipeline 31, when being communicated with the water-in in described river course 2 by second pipe 32, to the specific implementation that the water flow draining into described both culturing microalgae district 1 regulates be: see Fig. 7, described first pipeline 31 arranges flow control valve 4, the water flow flowing through described both culturing microalgae district 1 is regulated.
Wherein, micro-algae is carried out in the process of free cultivation in culture zone 12 of being dissociated by described micro-algae, easily there is sedimentation in micro-algae and the efficiency of light energy utilization is not enough, thus photosynthesis is carried out to micro-algae have an impact, be unfavorable for that micro-algae carries out photosynthesis and produces oxygen, in a preferred embodiment of the present invention, described method also comprises: stir the water body that algae micro-described in each dissociates in culture zone, improves micro-algae described in each and to dissociate the photosynthesis of the micro-algae in culture zone 12.Such as, when described micro-algae dissociate culture zone 12 for raceway pond time, stirring rake can be set in described raceway pond, micro-algae in described raceway pond is stirred, make micro-algae can make full use of luminous energy and carry out photosynthesis, improve the amount of oxygen that micro-algae carries out photosynthesis generation, thus increase the dissolved oxygen amount in described black and odorous water, improve the regulation effect of described black and odorous water.
Wherein, it should be noted that, micro-algae carry out photosynthesis oxygenous while, consume the carbonic acid gas in described black and odorous water, when the carbon dioxide content in black and odorous water is less, restriction can be caused to the photosynthesis of micro-algae, preferably, described method also comprises at interval of the first Preset Time, in described black and odorous water, pass into carbonic acid gas, makes the pH value of black and odorous water remain on 5.5-8.5.In embodiments of the present invention, by passing into carbonic acid gas in described black and odorous water, the photosynthetic efficiency of micro-algae can be improved, thus improve the regulation effect of black and odorous water.
In one embodiment of the invention, described method also comprises: at interval of the second Preset Time, gathers to micro-algae in both culturing microalgae district 1 described in each, and both culturing microalgae district 1 inoculates new micro-algae and cultivates described in each.By constantly updating micro-algae in described both culturing microalgae district 1, micro-algae can be improved and carry out photosynthetic efficiency, avoid micro-algae to have little time to gather after death and cause the organic matter of black and odorous water to rise, affect the regulation effect of described black and odorous water.
Wherein, do not limit the collecting method of micro-algae, the material that can cultivate face according to immobilization when gathering to the micro-algae on described solid-state carrier 11 selects rational collecting method.When micro-algae of culture zone 12 of dissociating to micro-algae is gathered, the mode can filtered by grenadine is gathered to dissociate micro-algae of culture zone 12 of algae micro-described in each.
Wherein, the aperture of grenadine can be determined according to the kind of the micro-algae that will gather and diameter.When micro-algae is spherical frond, when diameter is less, can be deposited in water body by micro-algae, the mode that then selective membrane filters realizes algae and is separated; When micro-algae is the larger filamentous carrier of diameter, thin,tough silk yarn or grid can be adopted to realize algae and to be separated.
Embodiment
Below, the present invention will be described by embodiment and experimental example for the embodiment of the present invention.These embodiments are only the examples proposed to illustrate the present invention, and those skilled in the art are not it is appreciated that scope of the present invention is subject to the restriction of these embodiments and experimental example.
In order to the technique effect of the objective explanation embodiment of the present invention, be described for certain black and odorous water of Langfang City, wherein, in this water body, total nitrogen content is 15mg/L, total phosphorous is 7mg/L, COD is 200mg/L, oxygen content in water body is lower than 2mg/L, and the indices of water body, all beyond China national water-bath eutrophy standard V class water quality standard, is bad V class water.
Embodiment 1
In described river course, other setting props up a fluid stream channel, be that the raceway pond microalgae of 3 meters dissociates culture zone every to arrange 3 length be 50 meters of width in the middle of described fluid stream channel, every two adjacent described micro-algaes dissociate the setting of 50 meters, interval, culture zone, described in each, the dissociate entrance of culture zone and exit of micro-algae all arranges isolation grenadine, spherical micro-algae is free in described micro-algae to dissociate in culture zone, black and odorous water in described river course flows through a described fluid stream channel and cultivates micro-algae that described micro-algae dissociates in culture zone, and culturing time is 7 days.
Experimental example:
Nitrogen and phosphorus content in the water body of cultivation after 7 days and oxygen content are detected;
Result: the total nitrogen content flowed through in the water body at river outlet place, tributary is reduced to 1.0mg/L, total phosphorous is reduced to 0.01mg/L, oxygen content maintains 10-15mg/L, and this water body reaches China national waters eutrophy standard I V class water, and Water quality obtains obvious improvement.
Known above, by described black and odorous water drainage is flowed through both culturing microalgae district, micro-algae is cultivated, make micro-algae nitrogen phosphorus consumed in described black and odorous water carry out photosynthesis to produce oxygen, oxygen dissolution forms oxygen enrichment water body in described black and odorous water, again described oxygen enrichment water body is drained in described river course, the dissolved oxygen amount of black and odorous water in described river course can be increased, reduce the nitrogen and phosphorus content in described black and odorous water, thus effectively can administer described black and odorous water.Overcome the defect that in prior art, the regulation effect of black and odorous water is not good enough and governance efficiency is low.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. an administering method for black and odorous water, is characterized in that, described black and odorous water, along channel flow, comprising:
Step 1) black and odorous water is drained into both culturing microalgae district as nutrient solution;
Step 2) cultivate with micro-algae of described black and odorous water to both culturing microalgae district, the oxygen dissolution that micro-algae carries out photosynthesis generation forms oxygen enrichment water body in described black and odorous water;
Step 3) described river course is gone back in the drainage of described oxygen enrichment water body.
2. administering method according to claim 1, is characterized in that, described both culturing microalgae district comprises the inoculation culture zone that has the solid-state carrier of micro-algae or/and micro-algae dissociates.
3. administering method according to claim 2, is characterized in that, described method also comprises: near described river course, build both culturing microalgae district.
4. administering method according to claim 3, is characterized in that, builds both culturing microalgae district and comprise near described river course:
Near described river course, build a fluid stream channel, at least one inoculation had the solid-state carrier of micro-algae to swim in a described fluid stream channel; Or/and, culture zone of being dissociated by least one micro-algae is arranged in described fluid stream channel, the culture zone of dissociating of micro-algae described in each is provided with entrance and outlet, and described entrance and exit is all provided with separation net, and described separation net intercepts micro-algae that described micro-algae dissociates in culture zone and flows out;
Described both culturing microalgae district is communicated with water outlet ring-type with the water-in in described river course by fluid stream channel, and wherein, the water outlet in described river course and water-in are intervally arranged along the flow direction of water body.
5. administering method according to claim 3, it is characterized in that, near described river course, build both culturing microalgae district comprise: culture zone of being dissociated by least one micro-algae is arranged on by described river course, the culture zone of dissociating of micro-algae described in each is provided with entrance and outlet, described entrance and exit is all provided with separation net, and described separation net intercepts micro-algae outflow that described micro-algae dissociates in culture zone;
Described both culturing microalgae district is communicated with the water outlet in described river course by the first pipeline, and described both culturing microalgae district is communicated with by the water-in of second pipe with described river course, and wherein, the water outlet in described river course and water-in are intervally arranged along the flow direction of water body.
6. the administering method according to claim 4 or 5, is characterized in that, when described micro-algae dissociate culture zone be two or more time, described micro-algae culture zone of dissociating is sequentially arranged in a described fluid stream channel along the flow direction of water body; Or described micro-algae culture zone of dissociating to be sequentially arranged near river course and serial communication successively along the flow direction of water body, and micro-algae described in each dissociates, the entrance of culture zone is arranged along water body flow direction successively with outlet; The water-in in described both culturing microalgae district is the entrance of culture zone of dissociating along first micro-algae of water body flow direction arrangement, and the water outlet in described both culturing microalgae district is the outlet of culture zone of dissociating along last micro-algae of water body flow direction arrangement;
Or described micro-algae culture zone of dissociating is arranged in order along the width of described fluid stream channel; Or described micro-algae culture zone of dissociating is arranged in order along apart from described river course distance on bank, described river course, the dissociate entrance of culture zone of micro-algae described in each is arranged along water body flow direction successively with outlet; The dissociate number of culture zone of number and described micro-algae of the water-in in described both culturing microalgae district is identical, and the water-in in described both culturing microalgae district respectively one_to_one corresponding to dissociate the entrance of culture zone for algae micro-described in each, the dissociate number of culture zone of number and described micro-algae of the water outlet in described both culturing microalgae district is identical, and the water outlet in described both culturing microalgae district respectively one_to_one corresponding to dissociate the outlet of culture zone for algae micro-described in each.
7. administering method according to claim 4, it is characterized in that, at least one inoculation had the solid-state carrier of micro-algae to swim in a described fluid stream channel to comprise: described solid-state carrier successively interval swims in a described fluid stream channel by the flow direction along described water body, and described solid-state carrier is uniformly distributed along the width of described fluid stream channel.
8. administering method according to claim 6, is characterized in that, culture zone of being dissociated by least two described micro-algaes is sequentially arranged in a described fluid stream channel along the flow direction of water body; Or culture zone of being dissociated by least two described micro-algaes to be sequentially arranged near river course and serial communication successively along the flow direction of water body, and micro-algae described in each dissociates, the entrance of culture zone is arranged along water body flow direction successively with outlet; The water-in in described both culturing microalgae district is the entrance of culture zone of dissociating along first micro-algae of water body flow direction arrangement, and the water outlet in described both culturing microalgae district is the outlet of culture zone of dissociating along last micro-algae of water body flow direction arrangement.
9. the administering method according to claim 4 or 5, is characterized in that, being provided with the dissociate region of culture zone of solid-state carrier or micro-algae in both culturing microalgae district is oxygen-rich area, and all the other regions are oxygen consumption district; Describedly black and odorous water drained into both culturing microalgae district as nutrient solution comprise:
Regulate the water flow draining into described both culturing microalgae district, make the water body oxygen level of described oxygen-rich area be not less than 4mg/L, the water body oxygen level in oxygen consumption district is not less than 2mg/L.
10. the administering method according to claim 4 or 5, is characterized in that, described method also comprises: stir the water body that algae micro-described in each dissociates in culture zone, improves micro-algae described in each and to dissociate the photosynthesis of the micro-algae in culture zone.
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| CN105523638B (en) | 2018-04-10 |
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