CN105621802A - Photosynthetic organism-mediated wastewater comprehensive ecological treatment system and method - Google Patents
Photosynthetic organism-mediated wastewater comprehensive ecological treatment system and method Download PDFInfo
- Publication number
- CN105621802A CN105621802A CN201610035806.3A CN201610035806A CN105621802A CN 105621802 A CN105621802 A CN 105621802A CN 201610035806 A CN201610035806 A CN 201610035806A CN 105621802 A CN105621802 A CN 105621802A
- Authority
- CN
- China
- Prior art keywords
- waste water
- sedimentation
- pond
- microalgae
- culture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- 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
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/347—Use of yeasts or fungi
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention belongs to the technical field of environmental water treatment and in particular provides a photosynthetic organism-mediated wastewater comprehensive ecological treatment system. The photosynthetic organism-mediated wastewater comprehensive ecological treatment system is mainly composed of a microalgae seed culture tank, a domestication tank, a hypha preparation tank, a mixed culture tank, a sedimentation and filtration tank, an autotrophic culture tank, an extruding dehydration device, a drying device and a cracker. The invention also provides a wastewater treatment system applying the wastewater comprehensive ecological treatment system provided by the invention. The photosynthetic organism-mediated wastewater comprehensive ecological treatment system and method provided by the invention have the beneficial effects that a novel photosynthetic microalgae-mediated wastewater treatment technology is introduced; oxygen produced by photosynthetic microalgae is utilized for replacing the traditional aeration, energy consumption is obviously reduced, yield of activated sludge is greatly reduced, and added value of the activated sludge is increased due to introduction of the microalgae; and the wastewater comprehensive ecological treatment system and method which are provided by the invention are environmentally friendly, simple and efficient, wastewater treatment cost is greatly reduced, and resource and energy re-utilization rate of wastewater can be obviously improved.
Description
Technical field
The invention belongs to environment-protective water processing technology field, the waste water comprehensive ecological being specifically related to the mediation of a kind of photosynthetic organism processes system and method.
Background technology
Along with the modern fast development of industrial or agricultural and being greatly improved of living standards of the people, create increasing life and industrial and agricultural wastewater. Organic carbon in waste water and ammonia nitrogen, mainly by aeration and anaerobism and aerobic alternate run, are become carbon dioxide and nitrogen discharge in air, it does not have realize the conversion and cycle of the energy or resource by traditional waste water treatment process based on the useless mud of activity. Day by day notable along with the exhaustion of fossil energy and atmospheric warming effect, finds more energy-conservation and eco-friendly waste water treatment process and becomes even more important and urgent. How to transfer conventional waste water place reason high energy consumption to the low energy consumption even technique of production capacity and become the research emphasis of following field of waste water treatment.
Utilizing photosynthetic organism such as algae to replace the research of waste water treatment process based on activated sludge during conventional waste water processes for main body, as far back as the 1950's, just someone reports. Photosynthetic microalgae is that one can carry out photosynthetic microorganism or plant. It can utilize the nutrients such as the nitrogen in waste water, phosphorus, alleviates the eutrophication of water body, and can absorb substantial amounts of CO in air2, reduce the greenhouse effect of air. Photosynthetic microalgae also has an ability absorbing heavy metal in waste water, and have efficiently, low consumption, the feature such as environmental protection. Additionally, the protein content of photosynthetic organism is high, after results, can be used as animal feed, bait. Some photosynthetic organism fat content is high, can be refined into bio oil for automobile, train as power fuel by collecting processing, be processed further being alternatively arranged as aviation fuel, for aircraft utilization. So utilize photosynthetic organism process waste water be one can the resource technology of efficient recovery wastewater energy and various nutrition composition, and the useless dye of secondary that conventional waste water processing method easily causes, potential nutrient substance can be overcome to lose, resource can not be fully utilized etc. drawback, can effectively and at low cost remove nutrient substance such as causing the nitrogen of body eutrophication, phosphorus simultaneously, therefore have broad application prospects.
About utilizing microalgae mediation waste water comprehensive ecological processing method and system, disclosed document and patent are little at present, such as publication number CN101549932A pertains only to utilize waste water and dregs waste liquid to cultivate microalgae oil refining, waste water treatment efficiency is low, still cannot solve the wastewater treatment demand of high COD, high ammonia nitrogen, high color value, big flow.
Summary of the invention
In order to solve prior art exist the problems referred to above, the invention provides a kind of can low cost and environmentally friendly process various municipal wastewater and industrial and agricultural wastewater photosynthetic organism mediation waste water comprehensive ecological process system. Meanwhile, present invention also offers the corresponding waste water comprehensive ecological process system using the present invention and carry out low cost and the method for eco-friendly process municipal wastewater and industrial and agricultural wastewater.
Present invention firstly provides the waste water comprehensive ecological of a kind of photosynthetic organism mediation and process system, including following equipment: for cultivating the microalgae seed culture pond of microalgae seed; For tame cultivate microalgae toleration under wastewater environment raise and train pond; For preparing the mycelia preparation tank of fungal mycelia; By raise and train that pond discharges containing after domestication microalgae raise and train liquid and the mixing of pending waste water carries out the Mixed culture pond of Mixed culture; For the liquid of raising together with in Mixed culture pond is carried out the first sedimentation and filtration ditch of solid-liquid separation, described first sedimentation and filtration ditch is initially charged mycelia obtained by mycelia preparation tank and cultivates, then carry out solid-liquid separation; For the first isolated filtrate of sedimentation and filtration ditch being added the autotrophy culture pond that activated sludge autotrophy is cultivated; For the second sedimentation and filtration ditch carrying out solid-liquid separation from nutrient solution to autotrophy culture pond, described second sedimentation and filtration ditch is initially charged mycelia obtained by mycelia preparation tank and cultivates, then carry out solid-liquid separation; For the first sedimentation and filtration ditch and the isolated precipitation of the second sedimentation and filtration ditch being carried out the squeezing dehydration device of further dehydration; For the drying device that the precipitation after squeezing dehydration device is processed is dried; And for the dried precipitation of drying device being carried out the cracker of cracking bio oil. Preferably, cracker is microwave cracking device.
In waste water comprehensive ecological process system provided by the invention, microalgae can utilize organic carbon and DIC and external source CO in waste water2Carry out cultivating to purify waste water for carbon source, meanwhile, flora three combined effect in the microalgae of photosynthetic organism, fungal mycelia and activated sludge, reach the collaborative effect processing waste water, waste water treatment efficiency height, excellent effect, with low cost. Meanwhile, sedimentation and filtration ditch obtains precipitation and processes prepared bio oil through cracking, and cracked residue is also used as organic fertilizer, improves the output added value of the Waste Water Treatment of the present invention further, improves the resource of waste water, recovery energy rate. Domestication pool domestication incubation time is generally several week to some months. Domestication is cultivated can strengthen the microalgae toleration to specific waste water, strengthens its growth detergent power, makes place mat for the Mixed culture in lower step Mixed culture pond.
As preferably, the waste water comprehensive ecological of the present invention processes the Wastewater Pretreatment pond that system also includes waste water is removed solid particle polluter. Further, the different grid defecator of solid particle polluter size of interception, stone filter device and sand filtering device it are sequentially provided with in described Wastewater Pretreatment pond.
As preferably, described microalgae seed culture pond is mainly made up of the light source and cultivation bucket that promote the growth of microalgae photosynthesis, the bottom of described cultivation bucket is provided with electromagnetic mixing apparatus, described light source is plant growing fluorescent lamp and/or LED, and described light source is electrically connected with the photovoltaic power generation plate into its offer energy. It is preferred that, described in raise and train pond identical with described microalgae seed culture pool structure. The setting of electromagnetic mixing apparatus, it is prevented that microalgae is Local enrichment precipitation in system so that microalgae is being evenly distributed in system, and then plays the effect promoting micro algae growth efficiency and purification of waste water effect.
As preferably, described Mixed culture pond is mainly made up of cultivation reactor and water pump, described cultivation reactor is made up of the culture tank that multiple length are different, multiple culture tanks are arranged in order according to its length is stepped from short to long from top to bottom, and the right-hand member of adjacent culture tank connects mutually, the top of described cultivation reactor connects with the outlet of described water pump, and described cultivation reactor bottom is provided with liquid outlet able to turn on or off. It is preferred that, described cultivation reactor is made up of 12 culture tanks, and the spacing between two culture tanks of arbitrary neighborhood is 30cm, and the width of all culture tanks is 80cm. Raising together with culture pond to be made up of the microalgae open culturing reactor of notch cuttype, cultivating reactor top layer has water pump to send into, and then utilizes water self gravitation by height to dirty, reaches the purpose of Cyclic culture, energy consumption is greatly reduced. Meanwhile, the Mixed culture pond of this kind of structural design and extraneous contact area microalgae lighting angle big, internal are many, exterior light is high according to utilization rate, and then reduce lighting requirements, thus reduction cost.
As preferably, described first sedimentation and filtration ditch and the second sedimentation and filtration ditch are same sedimentation and filtration ditch.
Accordingly, present invention also offers and use the waste water comprehensive ecological of the aforementioned present invention to process the method that system processes waste water, comprise the following steps:
S1 preparation: use microalgae seed culture pond to cultivate microalgae seed stand-by, uses mycelia preparation tank to prepare fungal mycelia stand-by;
S2 Wastewater Pretreatment: waste water passes into Wastewater Pretreatment pond, removes solid particle polluter, obtains pretreated waste water;
S3 microalgae is raised and train: pretreated waste water part is passed into and raises and train pond, and inoculates, raising and train, the microalgae seed cultivated in S1 in pond, and microalgae seed toleration in wastewater environment is cultivated in domestication, raises and train and terminates to obtain to raise and train liquid containing microalgae; Remaining pretreated waste water is all passed into Mixed culture pond;
S4 Mixed culture: raising and train liquid and pass into Mixed culture pond and carry out Mixed culture, Mixed culture terminates to obtain raising together with liquid;
S5 primary sedimentation: liquid will be raised together with and pass into the first sedimentation and filtration ditch, and add the fungal mycelia of preparation in S1 in the first sedimentation and filtration ditch, and carry out solid-liquid separation after stir culture, obtain primary sedimentation and first-time filtrate;
S6 autotrophy is cultivated: first-time filtrate passes into autotrophy culture pond, and addition activated sludge carries out autotrophy cultivation in autotrophy culture pond, and autotrophy is cultivated after terminating and obtained from nutrient solution;
S7 secondary precipitation: the second sedimentation and filtration ditch will be passed into from nutrient solution, and in the second sedimentation and filtration ditch, add the fungal mycelia of preparation in S1, carry out solid-liquid separation after stir culture, obtain secondary precipitation and secondary filtrate, be comprehensive ecological after the detection of secondary filtrate is up to standard and process waste water;
S8 precipitates recycling: S5 gained primary sedimentation and S7 gained secondary precipitation are carried out following process successively respectively: squeezing dehydration device extrusion dehydration, drying device dry, cracker prepares bio oil.
Further optimization to the technical scheme of method of wastewater treatment provided by the invention, if the detection of secondary filtrate is not up to standard in S7, passes into autotrophy culture pond, repetitive cycling S6 and S7 step by secondary filtrate, till the filtrate that obtains until S7 solid-liquid separation is up to standard.
The invention have the benefit that waste water comprehensive ecological provided by the invention processes system and method and introduces the Novel waste water treatment technology of photosynthetic microalgae mediation. Utilizing the oxygen that photosynthetic microalgae self produces to replace tradition aeration, energy consumption is remarkably decreased, and activated sludge yield is greatly reduced, and the introducing of microalgae adds the high added value of activated sludge. The waste water comprehensive ecological of the present invention processes system and method environmental friendliness, simply efficient, greatly reduce the cost of wastewater treatment simultaneously, and resource and the reusing of energy source rate of waste water can be obviously improved. The waste water processed can directly be recycled, and meets microalgae industryization and processes the requirement of wastewater application, is an economy, efficient microalgae sewage disposal new way.
Accompanying drawing explanation
Fig. 1 uses the waste water comprehensive ecological of the present invention process system and process the schematic diagram of method of waste water;
Fig. 2 is the structural representation cultivating reactor in the Mixed culture pond in the present invention;
Fig. 3 is that Beijing waste water treatment plant Biochemical oxygen demand (BOD) discharges examining report;
Fig. 4 is that Beijing waste water treatment plant always suspension amount (TSS) discharges examining report;
Fig. 5 is that Beijing waste water treatment plant uses the waste water comprehensive ecological of the present invention to process Biochemical oxygen demand (BOD) and total suspension amount (TSS) before and after system and method technology and tradition aeration process to discharge examining report;
Fig. 6 is that Beijing waste water treatment plant uses the waste water comprehensive ecological of the present invention to process the average oxygen growing amount (O of system and method2) discharge examining report;
Fig. 7 is the comparison diagram of the operating cost (before system current cost) of different Waste Water Treatment;
Fig. 8 is the comparison diagram of the operating cost (infrastructure cost) of different Waste Water Treatment;
Fig. 9 is the comparison diagram of the system running cost of different Waste Water Treatment;
Figure 10 is the comparison diagram of the system running cost (expectation total annual cost) of different Waste Water Treatment.
In figure: 1 for cultivating reactor, and 11 is culture tank.
Detailed description of the invention
Embodiment 1: the waste water comprehensive ecological of a kind of photosynthetic organism mediation processes system
The waste water comprehensive ecological of the present embodiment processes system and is made up of following equipment: for cultivating the microalgae seed culture pond of microalgae seed; For tame cultivate microalgae toleration under wastewater environment raise and train pond; For preparing the mycelia preparation tank of fungal mycelia; By raise and train that pond discharges containing after domestication microalgae raise and train liquid and the mixing of pending waste water carries out the Mixed culture pond of Mixed culture; For the liquid of raising together with in Mixed culture pond is carried out the first sedimentation and filtration ditch of solid-liquid separation, described first sedimentation and filtration ditch is initially charged mycelia obtained by mycelia preparation tank and cultivates, then carry out solid-liquid separation; For the first isolated filtrate of sedimentation and filtration ditch being added the autotrophy culture pond that activated sludge autotrophy is cultivated; For the second sedimentation and filtration ditch carrying out solid-liquid separation from nutrient solution to autotrophy culture pond, described second sedimentation and filtration ditch is initially charged mycelia obtained by mycelia preparation tank and cultivates, then carry out solid-liquid separation; For the first sedimentation and filtration ditch and the isolated precipitation of the second sedimentation and filtration ditch being carried out the squeezing dehydration device of further dehydration; For the drying device that the precipitation after squeezing dehydration device is processed is dried; And for the dried precipitation of drying device being carried out the cracker of cracking bio oil. Preferably, cracker is microwave cracking device.
To the present embodiment it is preferred that in, be sequentially provided with the different grid defecator of solid particle polluter size of interception, stone filter device and sand filtering device in described Wastewater Pretreatment pond.
To the present embodiment it is preferred that in, described microalgae seed culture pond is mainly made up of the light source and cultivation bucket that promote the growth of microalgae photosynthesis, the bottom of described cultivation bucket is provided with electromagnetic mixing apparatus, described light source is plant growing fluorescent lamp and/or LED, and described light source is electrically connected with the photovoltaic power generation plate into its offer energy. It is described that to raise and train pond identical with described microalgae seed culture pool structure.
To the present embodiment it is preferred that in, described Mixed culture pond is mainly made up of cultivation reactor and water pump, as shown in Figure 2, described cultivation reactor is made up of the culture tank that multiple length are different, multiple culture tanks are arranged in order according to its length is stepped from short to long from top to bottom, and the right-hand member of adjacent culture tank connects mutually, the top of described cultivation reactor connects with the outlet of described water pump, and described cultivation reactor bottom is provided with liquid outlet able to turn on or off. Described cultivation reactor is made up of 12 culture tanks, and the spacing between two culture tanks of arbitrary neighborhood is 30cm, and the width of all culture tanks is 80cm.
To the present embodiment it is preferred that in, described first sedimentation and filtration ditch and the second sedimentation and filtration ditch are same sedimentation and filtration ditch.
Embodiment 2: a kind of method using waste water comprehensive ecological in embodiment 1 to process system process waste water
As it is shown in figure 1, the method for the present embodiment comprises the following steps:
S1 preparation: use microalgae seed culture pond to cultivate microalgae seed stand-by, uses mycelia preparation tank to prepare fungal mycelia stand-by;
S2 Wastewater Pretreatment: waste water passes into Wastewater Pretreatment pond, removes solid particle polluter, obtains pretreated waste water;
S3 microalgae is raised and train: pretreated waste water part is passed into and raises and train pond, and inoculates, raising and train, the microalgae seed cultivated in S1 in pond, and microalgae seed toleration in wastewater environment is cultivated in domestication, raises and train and terminates to obtain to raise and train liquid containing microalgae; Remaining pretreated waste water is all passed into Mixed culture pond;
S4 Mixed culture: raising and train liquid and pass into Mixed culture pond and carry out Mixed culture, Mixed culture terminates to obtain raising together with liquid;
S5 primary sedimentation: liquid will be raised together with and pass into the first sedimentation and filtration ditch, and add the fungal mycelia of preparation in S1 in the first sedimentation and filtration ditch, and carry out solid-liquid separation after stir culture, obtain primary sedimentation and first-time filtrate;
S6 autotrophy is cultivated: first-time filtrate passes into autotrophy culture pond, and addition activated sludge carries out autotrophy cultivation in autotrophy culture pond, and autotrophy is cultivated after terminating and obtained from nutrient solution;
S7 secondary precipitation: the second sedimentation and filtration ditch will be passed into from nutrient solution, and in the second sedimentation and filtration ditch, add the fungal mycelia of preparation in S1, carry out solid-liquid separation after stir culture, obtain secondary precipitation and secondary filtrate, be comprehensive ecological after the detection of secondary filtrate is up to standard and process waste water;
S8 precipitates recycling: S5 gained primary sedimentation and S7 gained secondary precipitation are carried out following process successively respectively: squeezing dehydration device extrusion dehydration, drying device dry, cracker prepares bio oil.
The method to the present embodiment it is preferred that in, if the detection of secondary filtrate is not up to standard in S7, secondary filtrate is passed into autotrophy culture pond, repetitive cycling S6 and S7 step, till the filtrate that obtains until S7 solid-liquid separation is up to standard.
One application example of the present invention is as follows:
The small-sized municipal wastewater treatment plant in Beijing, basic condition: process municipal wastewater about 200 tons every day, Fig. 3 and Fig. 4 is the Biochemical oxygen demand (BOD) before this waste water treatment plant does not use the technology of the present invention and total suspension amount (TSS) discharges examining report.
Adopt waste water comprehensive ecological of the present invention to process system and method and carry out wastewater treatment:
1, first pass through Wastewater Pretreatment pond and remove the solid and Organic substance bulky grain that suspend, this Wastewater Pretreatment pond is in series by 20 cement pit, each pond sequentially forms by grid defecator, stone filter device and sand filtering device, dischargeable capacity about 100 cubic metres, the total measurement (volume) of whole pond group is 2000 cubic metres. Municipal wastewater enters from first cement pit, flows out to last cement pit, and the time of staying is 1-2 days. Flowing into through a pretreated waste water part and raise and train pond as micro-algae culture medium domestication toleration microalgae, it is standby that major part feeding raises together with culture pond. Raising and train the microalgae seed of inoculated and cultured in pond, tame and cultivate microalgae seed toleration in wastewater environment.
2, inoculating the microalgae algae strain after raising and train to raising together with culture pond, this semi continuous is raised together with culture pond and is made up of the awave open culturing reactor of notch cuttype, cultivates reactor totally 12 layers, layer spacing distance 30cm, every slice width degree 80cm, length is 6000cm, and bottom is runway pool reactor. Top layer has water pump to send into, and then utilizes water self gravitation by height to dirty, reaches the purpose of Cyclic culture, and the awave open culturing reactor of this notch cuttype is placed under the protection of printing opacity booth. The awave open culturing reactor of this notch cuttype can be greatly reduced energy consumption, raises together with cultivation and also reduces light as requested to greatest extent, thus reducing cost further.
3, raise together with the liquid of raising together with after cultivation and pass into sedimentation and filtration ditch, and in sedimentation and filtration ditch, add the fungal mycelia of preparation, carry out solid-liquid separation after stir culture, be precipitated and filtrate. Collect precipitation and send into dehydration further in bed-compression, be then placed in oven drying, finally send into rapid microwave cracking system and prepare bio oil and biological carbon. Filtrate is sent in autotrophy culture pond and is processed further.
4, in autotrophy culture pond, add activated sludge and carry out autotrophy cultivation. Autotrophy culture pond is made up of circular raceway pond, microvesicle foam device is put in bottom, stirring for microdisk electrode, period allows microalgae algae strain mix by different proportions such as 1:1 to 1:100 with activated sludge, promotes photosynthetic microalgae and activated sludge flora to reach the collaborative effect processing waste water.
5, autotrophy culture pond autotrophy cultivate after pass into sedimentation and filtration ditch from nutrient solution, and in sedimentation and filtration ditch, add the fungal mycelia of preparation, carry out solid-liquid separation after stir culture, be precipitated and filtrate, filtrate detects direct discharge up to standard. Precipitation belt passes to bed-compression extruding, further dehydration, then oven drying, is then fed into rapid microwave device microwave cracking and prepares bio oil.
This small-sized municipal wastewater treatment plant adopts the waste water comprehensive ecological process system and method for the present invention to carry out shown in the result such as table 1 and Fig. 5��Fig. 8 of wastewater treatment.
Table 1. adopts the present invention to carry out the treatment effect for the treatment of of Organic Wastewater
Analytical table 1 is it can be seen that the Waste Water Treatment of the present invention and method water treatment effect are excellent, and compares to conventional waste water processing mode mutually, also has an energy consumption and advantage that sludge settling yield is greatly reduced.
Fig. 5 is that this waste water treatment plant uses the waste water comprehensive ecological of the present invention to process Biochemical oxygen demand (BOD) and total suspension amount (TSS) before and after system and method technology and tradition aeration process to discharge examining report. This report display our technology energy consumption of employing is lower.
Fig. 6 is that this waste water treatment plant uses the waste water comprehensive ecological of the present invention to process the average oxygen growing amount (O of system and method2) discharge examining report, suitable with tradition aeration.
Fig. 7��Figure 10 is the operation of different Waste Water Treatment and running cost compares, there it can be seen that our technology required put into lower in cost, better effects if.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under the enlightenment of the present invention; no matter but do any change in detail, every have same or like with the application like technical scheme, all fall within protection scope of the present invention.
Claims (10)
1. the waste water comprehensive ecological of a photosynthetic organism mediation processes system, it is characterised in that include following equipment:
For cultivating the microalgae seed culture pond of microalgae seed;
For tame cultivate microalgae toleration under wastewater environment raise and train pond;
For preparing the mycelia preparation tank of fungal mycelia;
WillRaise and train that pond discharges containing after domestication microalgae raise and train liquid and the mixing of pending exhausted water carries out the Mixed culture pond of Mixed culture;
For the liquid of raising together with in Mixed culture pond is carried out the first sedimentation and filtration ditch of solid-liquid separation; Described first sedimentation and filtration ditch is initially charged mycelia obtained by mycelia preparation tank cultivate, then carries out solid-liquid separation;
For the first isolated filtrate of sedimentation and filtration ditch being added the autotrophy culture pond that activated sludge autotrophy is cultivated;
For the second sedimentation and filtration ditch carrying out solid-liquid separation from nutrient solution to autotrophy culture pond; Described second sedimentation and filtration ditch is initially charged mycelia obtained by mycelia preparation tank cultivate, then carries out solid-liquid separation;
For the first sedimentation and filtration ditch and the isolated precipitation of the second sedimentation and filtration ditch being carried out the squeezing dehydration device of further dehydration;
For the drying device that the precipitation after squeezing dehydration device is processed is dried;
And for the dried precipitation of drying device being carried out the cracker of cracking bio oil.
2. waste water comprehensive ecological according to claim 1 processes system, it is characterised in that: also include the Wastewater Pretreatment pond that waste water is removed solid particle polluter pretreatment.
3. waste water comprehensive ecological according to claim 2 processes system, it is characterised in that: it is sequentially provided with the different grid defecator of solid particle polluter size of interception, stone filter device and sand filtering device in described Wastewater Pretreatment pond.
4. waste water comprehensive ecological according to claim 1 processes system, it is characterized in that: described microalgae seed culture pond is mainly made up of the light source and cultivation bucket that promote the growth of microalgae photosynthesis, the bottom of described cultivation bucket is provided with electromagnetic mixing apparatus, described light source is plant growing fluorescent lamp and/or LED, and described light source is electrically connected with the photovoltaic power generation plate into its offer energy.
5. waste water comprehensive ecological according to claim 4 processes system, it is characterised in that: described in raise and train pond identical with described microalgae seed culture pool structure.
6. waste water comprehensive ecological according to claim 1 processes system, it is characterized in that: described Mixed culture pond is mainly made up of cultivation reactor and water pump, described cultivation reactor is made up of the culture tank that multiple length are different, multiple culture tanks are arranged in order according to its length is stepped from short to long from top to bottom, and the right-hand member of adjacent culture tank connects mutually, the top of described cultivation reactor connects with the outlet of described water pump, and described cultivation reactor bottom is provided with liquid outlet able to turn on or off.
7. waste water comprehensive ecological according to claim 6 processes system, it is characterised in that: described cultivation reactor is made up of 12 culture tanks, and the spacing between two culture tanks of arbitrary neighborhood is 30cm, and the width of all culture tanks is 80cm.
8. waste water comprehensive ecological according to claim 1 processes system, it is characterised in that: described first sedimentation and filtration ditch and the second sedimentation and filtration ditch are same sedimentation and filtration ditch.
9. use the arbitrary described waste water comprehensive ecological of claim 2��8 to process the method that system processes waste water, it is characterised in that to comprise the steps:
S1 preparation: use microalgae seed culture pond to cultivate microalgae seed stand-by, uses mycelia preparation tank to prepare fungal mycelia stand-by;
S2 Wastewater Pretreatment: waste water passes into Wastewater Pretreatment pond, removes solid particle polluter, obtains pretreated waste water;
S3 microalgae is raised and train: pretreated waste water part is passed into and raises and train pond, and inoculates, raising and train, the microalgae seed cultivated in S1 in pond, and microalgae seed toleration in wastewater environment is cultivated in domestication, raises and train and terminates to obtain to raise and train liquid containing microalgae; Remaining pretreated waste water is all passed into Mixed culture pond;
S4 Mixed culture: raising and train liquid and pass into Mixed culture pond and carry out Mixed culture, Mixed culture terminates to obtain raising together with liquid;
S5 primary sedimentation: liquid will be raised together with and pass into the first sedimentation and filtration ditch, and add the fungal mycelia of preparation in S1 in the first sedimentation and filtration ditch, and carry out solid-liquid separation after stir culture, obtain primary sedimentation and first-time filtrate;
S6 autotrophy is cultivated: first-time filtrate passes into autotrophy culture pond, and addition activated sludge carries out autotrophy cultivation in autotrophy culture pond, and autotrophy is cultivated after terminating and obtained from nutrient solution;
S7 secondary precipitation: the second sedimentation and filtration ditch will be passed into from nutrient solution, and in the second sedimentation and filtration ditch, add the fungal mycelia of preparation in S1, carry out solid-liquid separation after stir culture, obtain secondary precipitation and secondary filtrate, be comprehensive ecological after the detection of secondary filtrate is up to standard and process waste water;
S8 precipitates recycling: S5 gained primary sedimentation and S7 gained secondary precipitation are carried out following process successively respectively: squeezing dehydration device extrusion dehydration, drying device dry, cracker prepares bio oil.
10. method according to claim 9, it is characterised in that: if the detection of secondary filtrate is not up to standard in S7, secondary filtrate is passed into autotrophy culture pond, repetitive cycling S6 and S7 step, till the filtrate that obtains until S7 solid-liquid separation is up to standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035806.3A CN105621802A (en) | 2016-01-19 | 2016-01-19 | Photosynthetic organism-mediated wastewater comprehensive ecological treatment system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035806.3A CN105621802A (en) | 2016-01-19 | 2016-01-19 | Photosynthetic organism-mediated wastewater comprehensive ecological treatment system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105621802A true CN105621802A (en) | 2016-06-01 |
Family
ID=56037209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610035806.3A Pending CN105621802A (en) | 2016-01-19 | 2016-01-19 | Photosynthetic organism-mediated wastewater comprehensive ecological treatment system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105621802A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748138A (en) * | 2017-12-05 | 2018-03-02 | 山东交通学院 | Activity of microalgae detection means and method based on filter liquor principle |
| CN112479504A (en) * | 2020-12-03 | 2021-03-12 | 佛山市深蓝维士养殖设备有限公司 | Breed sewage treatment device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230364A (en) * | 2008-02-25 | 2008-07-30 | 清华大学 | Method for producing biodiesel by high-density fermentation of heterotrophic chlorella |
| CN102391953A (en) * | 2011-10-26 | 2012-03-28 | 南昌大学 | Harvesting method of microalgae mediated by fungus |
| US20120214198A1 (en) * | 2009-10-20 | 2012-08-23 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Algaculture method |
| CN105060463A (en) * | 2015-08-12 | 2015-11-18 | 南宁柯林生物科技有限责任公司 | Wastewater treatment method adopting O2 produced by photosynthetic organisms to replace traditional aeration as well as application |
-
2016
- 2016-01-19 CN CN201610035806.3A patent/CN105621802A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230364A (en) * | 2008-02-25 | 2008-07-30 | 清华大学 | Method for producing biodiesel by high-density fermentation of heterotrophic chlorella |
| US20120214198A1 (en) * | 2009-10-20 | 2012-08-23 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Algaculture method |
| CN102391953A (en) * | 2011-10-26 | 2012-03-28 | 南昌大学 | Harvesting method of microalgae mediated by fungus |
| CN105060463A (en) * | 2015-08-12 | 2015-11-18 | 南宁柯林生物科技有限责任公司 | Wastewater treatment method adopting O2 produced by photosynthetic organisms to replace traditional aeration as well as application |
Non-Patent Citations (1)
| Title |
|---|
| RUIXIN GUO等: "Applicaion of alga-activated sludge combined system(AASCS) as a novel treatment to remove cephalosporins", 《CHEMICAL ENGINEERING JOURNAL》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748138A (en) * | 2017-12-05 | 2018-03-02 | 山东交通学院 | Activity of microalgae detection means and method based on filter liquor principle |
| CN107748138B (en) * | 2017-12-05 | 2023-11-28 | 山东交通学院 | Microalgae activity detection device and method based on filter liquid principle |
| CN112479504A (en) * | 2020-12-03 | 2021-03-12 | 佛山市深蓝维士养殖设备有限公司 | Breed sewage treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bhatia et al. | Wastewater based microalgal biorefinery for bioenergy production: Progress and challenges | |
| CN105174476B (en) | Activated sludge and microalgae coupling particle system and its structure and operation method for wastewater treatment | |
| CN106219871B (en) | Livestock and poultry breeding wastewater treatment method | |
| CN101274860B (en) | Processing method for changing restaurant and kitchen garbage into resource without environmental pollution | |
| CN103113932B (en) | Method and system for producing biodiesel by cultivating microalgae by using urban sewage | |
| CN101767893A (en) | Device and method for coupling producing biological oil by utilizing microalgae to deeply treating wastewater | |
| CN106186339B (en) | Sewage and wastewater treatment method taking granular bacteria-algae system as core | |
| Liu et al. | Material biosynthesis, mechanism regulation and resource recycling of biomass and high-value substances from wastewater treatment by photosynthetic bacteria: a review | |
| CN102863115A (en) | Method for treating fermentation industry waste water and producing algae powder by using microalgae | |
| CN102583767B (en) | System for treating sewage and producing biological oil by using microalgae and method | |
| CN113233587B (en) | Microalgae culture pond-artificial wetland coupling system and method for deep purification of sewage | |
| Sun et al. | Emerging biological wastewater treatment using microalgal-bacterial granules: A review | |
| CN103663715A (en) | Biotreatment method for efficiently purifying biogas slurry with microalgae | |
| CN109160683A (en) | A kind of sewage disposal system and method with carbon nitrogen phosphor resource reuse characteristic | |
| Solmaz et al. | Effect of sludge retention time on biomass production and nutrient removal at an algal membrane photobioreactor | |
| CN103864270B (en) | Device and method for treating organic waste water by combining microorganism electrolytic tank and lemna minor cultivation | |
| CN103981220A (en) | Organic waste treatment method in hydrogen alkane fermentation coupling microalgae breeding | |
| CN101586074B (en) | Algae cultivation system with sewage | |
| CN110591918A (en) | Method for producing algae-derived sugar by purifying secondary tail water or sludge supernatant in coupling mode | |
| Fallahi et al. | Effects of simultaneous CO2 addition and biomass recycling on growth characteristics of microalgal mixed culture | |
| CN105621802A (en) | Photosynthetic organism-mediated wastewater comprehensive ecological treatment system and method | |
| CN219752089U (en) | Resource continuous treatment system for purifying biogas slurry based on energy chlorella | |
| CN204125315U (en) | A kind of plant biogas fermentation device | |
| De Souza et al. | Use of the cyanobacterium Spirulina platensis in cattle wastewater bioremediation | |
| CN203922925U (en) | Microorganism electrolysis cell and duckweed are cultivated the device in conjunction with recycling treatment organic waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |