CN105541074A - Method and system for treating waste - Google Patents
Method and system for treating waste Download PDFInfo
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- CN105541074A CN105541074A CN201510918798.2A CN201510918798A CN105541074A CN 105541074 A CN105541074 A CN 105541074A CN 201510918798 A CN201510918798 A CN 201510918798A CN 105541074 A CN105541074 A CN 105541074A
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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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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- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
- C05F3/04—Fertilisers from human or animal excrements, e.g. manure from human faecal masses
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a method and system for treating waste; the waste includes at least one of feces and kitchen waste. The method includes the steps: (1) performing solid-liquid separation treatment of the waste, to obtain solid waste and liquid waste; (2) performing facultative aerobic treatment on the solid waste for 12-17 days with a composite microbial inoculum, to obtain an organic fertilizer; and (3) performing biological decomposition of the liquid waste for 12-17 days with microalgae, to obtain pre-treated water. The method can realize continuous and effective resourceful treatment on the feces or/and the kitchen waste, toxic, harmful, inflammable and explosive gases are not produced in the treatment process, and besides, treatment costs and energy consumption can be greatly reduced.
Description
Technical field
The invention belongs to technical field of sewage, specifically, the present invention relates to a kind of method and system processing waste.
Background technology
A national civilization degree, just has some idea of from its Toilet Culture.Lavatory plays an important role in the daily life of the mankind, and it is received and processes people's most movements that every day, physiological activity produced, and these excrement dirts become the main source of pollutent in sanitary sewage after being discharged into municipal sewage system.
Lavatory the most frequently used is at present water closet.In the region that urban infrastructure is sound, the movement of human body is transported to sewage work by " lavatory is to municipal sewage system " this approach and carries out disaggregating treatment, and the water consumption of this process is very large.Especially in water-deficient area, water supply and sewerage pipeline is undeveloped, and sewage disposal inconvenience, easily causes environmental pollution.In the area of not lack of water, the density of population is very large again, and sewage work's load is excessive.Therefore, common water closet only brings hygiene culture, and environmental problem has been left for outside and subsequent process.In addition, the region of secondary conveying is carried out at water drain system imperfection or the excrement dirt that cannot complete lavatory is collected at all, the pollution problem that the excrement dirt of mankind itself brings is more surprising often, such as outdoor defecation can cause a lot of transmissible diseases comprising cholera and diarrhoea and so on, and this is the second largest cause of the death of less than 5 years old children.In the current society advocating " environmental protection ", " green " and " Sustainable development ", environment protection water closet has just arisen at the historic moment.Environment protection water closet refers to have not to environment, and can make full use of various resource, emphasizes a class lavatory of pollutent self-cleaning and resource circulation utilization concept and function.It can meet the hygiene culture demand of inside, lavatory, can look after again the clean environment needs of outside, lavatory.From the different starting points, present society there is the environment protection water closet that microbiological anaerobic digestion, physical cleaning, water circulation use, excrement dirt packing and electrochemical degradation etc. are dissimilar, but from energy-conservation, health, safety and cost angularly, it is still difficult to meet the demands, and this proposes new challenge also to the development in environment protection water closet market.
Kitchen waste comprises leftovers, dish leaf, dish stalk etc.; usually then discharged through water drain by breaking into powder in prior art; although the method solves the problem that kitchen waste is piled up; but waste powder must use large water gaging just can wash away; so; greatly will certainly increase the consumption of tap water, not only increase water rate, more can increase the weight of the crisis of shortage of water resources.And waste is mixed in water and discharges, if things go on like this, especially after sewage enters transverse tube, deposition is easy in the duct, cause the blocking of water drain, simultaneously the cooking method of China can produce a large amount of greasy, can inner-walls of duct be attached to, more easily infested and cause blocking, cause difficulty, energy consumption and the expense processed also can increase thereupon.In addition, the meeting cannot avoided in crushing process brings the consumption of noise pollution and electric energy.
Therefore, the technology of existing process kitchen waste and/or excrement dirt is further improved.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is to propose a kind of method and system processing waste, the method can realize continuously, effective to ight soil or/and the recycling treatment of kitchen waste, and processing cost and energy consumption can be reduced greatly.
In one aspect of the invention, the present invention proposes a kind of method processing waste.According to the embodiment of the present invention, described waste comprises at least one in ight soil and kitchen waste, and described method comprises:
(1) described waste is carried out solid-liquid separation process, obtain solid waste and liquid debris;
(2) adopt composite fungus agent to carry out double oxygen process 12-17 days to described solid waste, obtain fertilizer;
(3) utilize micro-algae to carry out biological decomposition 12-17 days to described liquid debris, obtain pretreated water.
Thus, can realize continuously according to the method for the process waste of the embodiment of the present invention, effective to ight soil or/and the recycling treatment of kitchen waste, and gas such as poisonous and harmful inflammable and explosive grade can not be produced in treating processes, processing cost and energy consumption can be reduced greatly simultaneously.
In addition, the method for process waste according to the above embodiment of the present invention can also have following additional technical characteristic:
In some embodiments of the invention, described composite fungus agent by S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete is composite makes.Thus, the decomposition efficiency of solid waste can be significantly improved.
In some embodiments of the invention, described composite fungus agent by S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete by bacterium number ratio (2-5): (1-3): (5-8): 1 compositely makes.Thus, the decomposition efficiency of solid waste can be improved further.
In some embodiments of the invention, in step (2), the mass ratio of described composite fungus agent and described solid waste is 0.1%-0.5%.Thus, the decomposition efficiency of solid waste can be improved further.
In some embodiments of the invention, in step (2), temperature when adopting described composite fungus agent to process described solid waste is no more than 60 degrees Celsius; Humidity is no more than 85%RH.Thus, the decomposition efficiency of solid waste can be improved further.
In some embodiments of the invention, in step (3), described micro-algae is chlorella, spirulina, grid algae, at least one of quivering in algae and Anabaena spiroides.Thus, the chemical requirement of liquid debris can significantly be reduced.
In some embodiments of the invention, described micro-algae is in cell count ratio (1-3): 1:(2-3 by chlorella, spirulina, grid algae) the micro-algae of composite mixing of making.Thus, the chemical requirement of liquid debris can be reduced further.
In some embodiments of the invention, the input density of described micro-algae in liquid debris is (4-10) × 10
5cell/mL.Thus, the chemical requirement of liquid debris can be reduced further.
In some embodiments of the invention, the method for described process waste comprises further: carry out plant purification to the described pretreated water that step (3) obtains, be purified water.Thus, the purification efficiency of pretreated water can be significantly improved.
In some embodiments of the invention, described plant is at least one in copper coin grass, epipremnum aureum, drug abuse grass, silk ball, Flower of Arabian Jasmine.Thus, the purification efficiency of pretreated water can be improved further.
In another aspect of the invention, the present invention proposes a kind of system processing waste.According to embodiments of the invention, described waste comprises at least one in ight soil and kitchen waste, and described system comprises:
Equipment for separating liquid from solid, described equipment for separating liquid from solid is suitable for described waste to carry out solid-liquid separation process, to obtain solid waste and liquid debris;
Double oxygen reaction unit, described double oxygen reaction unit is connected with described equipment for separating liquid from solid, and is suitable for adopting composite fungus agent to carry out double oxygen process, to obtain fertilizer to described solid waste;
Algae reaction unit, described algae reaction unit is connected with described equipment for separating liquid from solid, and is suitable for utilizing micro-algae to carry out biological decomposition to described liquid debris, to reduce the chemical oxygen demand (COD) in described liquid debris, obtains pretreated water.
Thus, can realize continuously according to the system of the process waste of the embodiment of the present invention, effective to ight soil or/and the recycling treatment of kitchen waste, and gas such as poisonous and harmful inflammable and explosive grade can not be produced in treating processes, processing cost and energy consumption can be reduced greatly simultaneously.
In some embodiments of the invention, the system of described process waste comprises further: refining plant, described refining plant is connected with described algae reaction unit, and the described pretreated water be suitable for described algae reaction unit obtains carries out plant purification, to be purified water.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the method flow schematic diagram processing waste according to an embodiment of the invention;
Fig. 2 is the method flow schematic diagram of the process waste according to another embodiment of the present invention;
Fig. 3 is the system architecture schematic diagram processing waste according to an embodiment of the invention;
Fig. 4 is the system architecture schematic diagram of the process waste according to another embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In one aspect of the invention, the present invention proposes a kind of method processing waste.According to embodiments of the invention, this waste is be selected from least one in kitchen waste and ight soil.According to embodiments of the invention, the method comprises: described waste is carried out solid-liquid separation process by (1), obtains solid waste and liquid debris; (2) adopt composite fungus agent to carry out double oxygen process 12-17 days to described solid waste, obtain fertilizer; (3) utilize micro-algae to carry out biological decomposition 12-17 days to described liquid debris, obtain pretreated water.Contriver finds, by carrying out solid-liquid separation process to waste, then different biological decomposition technology is adopted to process solid liquid waste respectively, solid liquid waste can be changed into valuable fertilizer and pretreated water respectively, thus the recycling treatment of waste can be realized, and packing anhydrous with existing employing, foam blocking, the treatment technologies such as anaerobically fermenting are compared, the process of process waste of the present invention can not cause secondary pollution, and can not stench be produced, poisonous and harmful is inflammable and explosive waits gas, simultaneously in night soil-treatment process, treating processes of the present invention is without the need to transit link, thus can significantly reduce processing cost and energy consumption.
Below with reference to Fig. 1-2, the method for the process waste of the embodiment of the present invention is described in detail.According to embodiments of the invention, the method comprises:
S100: waste is carried out solid-liquid separation process
According to embodiments of the invention, waste is carried out solid-liquid separation process, thus solid waste and liquid debris can be obtained.Thus, by waste is carried out solid-liquid separation, on the basis reducing intractability, recycling treatment can be carried out for solid liquid waste respectively.It should be noted that, those skilled in the art can select the concrete mode of solid-liquid separation according to actual needs.
Be understandable that, solid-liquid separation process also can comprise the step of filtration treatment, in this step, concrete, the filtration unit being filled with haydite can be adopted to carry out filtration treatment, thus can obtain solid waste and liquid debris.
S200: adopt composite fungus agent to process solid waste
According to embodiments of the invention, composite fungus agent can be adopted to carry out double oxygen process 12-17 days to the solid waste that above-mentioned separation obtains, thus can fertilizer be obtained.Thus, by adopting biotechnology to carry out disaggregating treatment to being separated the solid waste obtained, solid waste can be converted into fertilizer, thus can turn waste into wealth, realize the recycling of solid waste, and processing cost being lower.
According to one embodiment of present invention, the composite fungus agent adopted can by S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete is composite makes, thus compensate for the deficiency of single aerobic or anaerobically fermenting, and then improve the transformation efficiency of solid waste.According to concrete example of the present invention, composite fungus agent preferably by S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete by bacterium number ratio (2-5): (1-3): (5-8): 1 compositely makes, and bacterium powder bacteria containing amount is 10
9/ gram more than; By screening dominant bacteria, after 0.1%-0.5% mixes in mass ratio with solid waste, carry out double oxygen process.Contriver finds, such composite fungus agent obviously can be better than the decomposition efficiency of the microorganism raising solid waste of other types, thus while shortening the decomposition cycle, improve the yield of fertilizer.
According to still a further embodiment, in this step, the temperature condition adopting composite fungus agent to process the solid waste that above-mentioned separation obtains also is not particularly limited, those skilled in the art can select according to actual needs, according to a particular embodiment of the invention, temperature when adopting composite fungus agent to process solid waste is no more than 60 degrees Celsius.Contriver finds, this temperature range can significantly improve the decomposition efficiency of composite fungus agent to solid waste, thus can shorten treatment cycle further.
According to still another embodiment of the invention, in this step, the humidity condition adopting composite fungus agent to process the solid waste that above-mentioned separation obtains also is not particularly limited, those skilled in the art can select according to actual needs, according to a particular embodiment of the invention, humidity when adopting composite fungus agent to process solid waste is no more than 85%RH.Contriver finds, this humidity range can significantly improve the decomposition efficiency of composite fungus agent to solid waste, thus can shorten treatment cycle further.Concrete, the filler can with adsorption function is guaranteed that the humidity condition processed remains on and is no more than 85%RH.
In this step, concrete, first 60 DEG C are no more than by Controlling System holding temperature, then treat that the solid waste that above-mentioned separation obtains is supplied in reaction vessel, opening to stir makes reaction vessel rotate 3 ~ 5min with the rotating speed of 2 ~ 5rpm, make solid waste, filler and composite fungus agent Homogeneous phase mixing, and humidity to be no more than 85%RH, namely can solid waste be changed into fertilizer through 12 ~ 17 days.
S300: utilize micro-algae to carry out biological decomposition to liquid debris
According to embodiments of the invention, utilize micro-algae to carry out biological decomposition 12-17 days to above-mentioned obtained liquid debris, thus the chemical oxygen demand (COD) in liquid debris can be reduced, obtain pretreated water.Contriver finds, by adopting micro-algae to carry out biological decomposition to liquid debris, can not cause secondary pollution, and can not produce the gases such as stench, poisonous and harmful be inflammable and explosive.Concrete, can micro-algae be adopted to carry out biological decomposition to liquid debris under the effect of sunlight or LED, thus can organism significantly in liquid debris.
According to one embodiment of the invention, micro-algae can for being selected from chlorella, spirulina, grid algae, at least one of quivering in algae and Anabaena spiroides.According to concrete example of the present invention, preferably, micro-algae is in cell count ratio (1-3): 1:(2-3 by chlorella, spirulina, grid algae) the micro-algae of composite mixing of making.Contriver finds, such mixes micro-algae and obviously can be better than other types and significantly improve organic decomposition efficiency in liquid debris, thus significantly reduces the chemical oxygen demand (COD) of liquid debris while shortening the decomposition cycle.Concrete, mix the input density of micro-algae in liquid debris and be preferably (4-10) × 10
5cell/mL.
According to the method for the process waste of the embodiment of the present invention by carrying out solid-liquid separation process to waste, then different biological decomposition technology is adopted to process solid liquid waste respectively, respectively solid liquid waste can be changed into valuable fertilizer and purify waste water, thus the recycling treatment of waste can be realized, and for the anhydrous packing of existing employing, foam blocking, the treatment technologies such as anaerobically fermenting are compared, the process of process waste of the present invention can not cause secondary pollution, and can not stench be produced, poisonous and harmful is inflammable and explosive waits gas, simultaneously in night soil-treatment process, treating processes of the present invention is without the need to transit link, thus can significantly reduce processing cost and energy consumption.
With reference to figure 2, the method according to the process waste of the embodiment of the present invention comprises further:
S400: plant purification is carried out to the pretreated water that step S300 obtains
According to embodiments of the invention, plant purification is carried out to the pretreated water that above-mentioned steps S300 obtains, thus can water be purified.Thus, significantly can be reduced the elements such as the ammonia nitrogen in pretreated water by plant purification, and the chemical oxygen demand (COD) of purifying waste water obtained is lower than 50, thus makes obtained purifying waste water can be directly used in planting vegetable or breed fish.According to a particular embodiment of the invention, the plant adopted can at least one in copper coin grass, epipremnum aureum, drug abuse grass, silk ball, Flower of Arabian Jasmine.Contriver finds, such plant significantly can reduce the chemical oxygen demand (COD) of pretreated water, thus can significantly improve the purity of purifying waste water.
In second of the present invention, the present invention proposes a kind of system processing waste.According to embodiments of the invention, this waste is be selected from least one in kitchen waste and ight soil.According to embodiments of the invention, described system comprises: equipment for separating liquid from solid, and described equipment for separating liquid from solid is suitable for described waste to carry out solid-liquid separation process, to obtain solid waste and liquid debris; Double oxygen reaction unit, described double oxygen reaction unit is connected with described equipment for separating liquid from solid, and is suitable for adopting composite fungus agent to carry out double oxygen process, to obtain fertilizer to described solid waste; Algae reaction unit, described algae reaction unit is connected with described equipment for separating liquid from solid, and is suitable for utilizing micro-algae to carry out biological decomposition to described liquid debris, to reduce the chemical oxygen demand (COD) in described liquid debris, obtains pretreated water.Contriver finds, by carrying out solid-liquid separation process to waste, then different biological decomposition technology is adopted to process solid liquid waste respectively, respectively solid liquid waste can be changed into valuable fertilizer and purify waste water, thus the recycling treatment of waste can be realized, and packing anhydrous with existing employing, foam blocking, the treatment technologies such as anaerobically fermenting are compared, the process of process waste of the present invention can not cause secondary pollution, and can not stench be produced, poisonous and harmful is inflammable and explosive waits gas, simultaneously in night soil-treatment process, treating processes of the present invention is without the need to transit link, thus can significantly reduce processing cost and energy consumption.It should be noted that, the feature and advantage described by the above-mentioned method for process waste are equally applicable to the system of this process waste, repeat no more herein.
System below with reference to the process waste of Fig. 3-4 pairs of embodiment of the present invention is described in detail.According to embodiments of the invention, this system comprises: equipment for separating liquid from solid 100, hold concurrently oxygen reaction unit 200, algae reaction unit 300.
According to embodiments of the invention, equipment for separating liquid from solid 100 is suitable for waste to carry out solid-liquid separation process, thus can obtain solid waste and liquid debris.Thus, by waste is carried out solid-liquid separation, on the basis reducing intractability, recycling treatment can be carried out for solid liquid waste respectively.It should be noted that, those skilled in the art can select the concrete device of solid-liquid separation according to actual needs.
Be understandable that, solid-liquid separation process also can comprise the step of filtration treatment, in this step, concrete, the filtration unit being filled with haydite can be adopted to carry out filtration treatment, thus can obtain solid waste and liquid debris.
According to embodiments of the invention, oxygen reaction unit 200 of holding concurrently is connected with equipment for separating liquid from solid 100, and is suitable for adopting composite fungus agent to carry out double oxygen process 12-17 days to the solid waste that above-mentioned separation obtains, thus can obtain fertilizer.Thus, by adopting biotechnology to carry out disaggregating treatment to being separated the solid waste obtained, solid waste can be converted into fertilizer, thus can turn waste into wealth, realize the recycling of solid waste, and processing cost being lower.
According to one embodiment of present invention, the composite fungus agent adopted can by S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete is composite makes, thus compensate for the deficiency of single aerobic or anaerobically fermenting, and then improve the transformation efficiency of solid waste.According to concrete example of the present invention, composite fungus agent preferably by S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete by bacterium number ratio (2-5): (1-3): (5-8): 1 compositely makes, and bacterium powder bacteria containing amount is 10
9/ gram more than; By screening dominant bacteria, after 0.1%-0.5% mixes in mass ratio with solid waste, carry out double oxygen process.Contriver finds, such composite fungus agent obviously can be better than the decomposition efficiency of the microorganism raising solid waste of other types, thus while shortening the decomposition cycle, improve the yield of fertilizer.
According to still a further embodiment, the temperature condition adopting composite fungus agent to process the solid waste that above-mentioned separation obtains also is not particularly limited, those skilled in the art can select according to actual needs, according to a particular embodiment of the invention, temperature when adopting composite fungus agent to process solid waste is no more than 60 degrees Celsius.Contriver finds, this temperature range can significantly improve the decomposition efficiency of composite fungus agent to solid waste, thus can shorten treatment cycle further.
According to still another embodiment of the invention, the humidity condition adopting composite fungus agent to process the solid waste that above-mentioned separation obtains also is not particularly limited, those skilled in the art can select according to actual needs, according to a particular embodiment of the invention, humidity when adopting composite fungus agent to process solid waste is no more than 85%RH.Contriver finds, this humidity range can significantly improve the decomposition efficiency of composite fungus agent to solid waste, thus can shorten treatment cycle further.Concrete, the filler can with adsorption function is guaranteed that the humidity condition processed remains on and is no more than 85%RH.
Concrete, first maintain temperature of reactor and be no more than 60 DEG C, then treat that the solid waste that above-mentioned separation obtains is supplied in reaction vessel, opening to stir makes reaction vessel rotate 3 ~ 5min with the rotating speed of 2 ~ 5rpm, to make solid waste, filler and composite fungus agent Homogeneous phase mixing, and humidity is no more than 85%RH, namely can solid waste be changed into fertilizer through 12 ~ 17 days.
According to embodiments of the invention, algae reaction unit 400 is connected with equipment for separating liquid from solid 100, and be suitable for utilizing micro-algae to carry out biological decomposition 12-17 days to above-mentioned obtained liquid debris, thus the chemical oxygen demand (COD) in liquid debris can be reduced, obtain pretreated water.Contriver finds, by adopting micro-algae to carry out biological decomposition to liquid debris, can not cause secondary pollution, and can not produce the gases such as stench, poisonous and harmful be inflammable and explosive.Concrete, can micro-algae be adopted to carry out biological decomposition to liquid debris under the effect of sunlight or LED, thus can organism significantly in liquid debris.
According to one embodiment of the invention, micro-algae can for being selected from chlorella, spirulina, grid algae, at least one of quivering in algae and Anabaena spiroides.According to concrete example of the present invention, preferably, micro-algae is in cell count ratio (1-3): 1:(2-3 by chlorella, spirulina, grid algae) the micro-algae of composite mixing of making.Contriver finds, such mixes micro-algae and obviously can be better than other types and significantly improve organic decomposition efficiency in liquid debris, thus significantly reduces the chemical oxygen demand (COD) of liquid debris while shortening the decomposition cycle.Concrete, mix the input density of micro-algae in liquid debris and be preferably (4-10) × 10
5cell/mL.
According to the system of the process waste of the embodiment of the present invention by carrying out solid-liquid separation process to waste, then different biological decomposition technology is adopted to process solid liquid waste respectively, respectively solid liquid waste can be changed into valuable fertilizer and purify waste water, thus the recycling treatment of waste can be realized, and for the anhydrous packing of existing employing, foam blocking, the treatment technologies such as anaerobically fermenting are compared, the process of process waste of the present invention can not cause secondary pollution, and can not stench be produced, poisonous and harmful is inflammable and explosive waits gas, simultaneously in night soil-treatment process, treating processes of the present invention is without the need to transit link, thus can significantly reduce processing cost and energy consumption.
With reference to figure 4, the system according to the process waste of the embodiment of the present invention comprises further: refining plant 400.
According to embodiments of the invention, refining plant 400 is connected with algae reaction unit 300, and the pretreated water be suitable for obtaining in above-mentioned algae reaction unit carries out plant purification, thus can be purified water.Thus, significantly can be reduced the elements such as the ammonia nitrogen in pretreated water by plant purification, and the chemical oxygen demand (COD) of purifying waste water obtained is lower than 50, thus makes obtained purifying waste water can be directly used in planting vegetable or breed fish.According to a particular embodiment of the invention, the plant adopted can at least one in copper coin grass, epipremnum aureum, drug abuse grass, silk ball, Flower of Arabian Jasmine.Contriver finds, such plant significantly can reduce the chemical oxygen demand (COD) of pretreated water, thus can significantly improve the purity of purifying waste water.
Below with reference to specific embodiment, present invention is described, it should be noted that, these embodiments are only descriptive, and do not limit the present invention in any way.
Embodiment 1
Adopt the system of the process waste of the embodiment of the present invention to process ight soil, comprise the following steps:
(1) in equipment for separating liquid from solid, described ight soil is carried out solid-liquid separation process, to obtain solid waste and liquid debris; And filtration treatment is carried out to described liquid debris, filter and remove solid particulate;
(2) hold concurrently in oxygen reaction unit, adopt composite fungus agent to carry out double oxygen process 12 days to described solid waste, to obtain fertilizer, in the oxygen reaction unit that controls to hold concurrently, humidity is no more than 85%RH, temperature is no more than 60 DEG C;
(3), in algae reaction unit, utilize micro-algae to carry out biological decomposition 13 days to described liquid debris, obtain pretreated water;
(4), in refining plant, plant purification is carried out 10 days to the pretreated water that step (3) obtains, is purified water.
Wherein, hold concurrently in oxygen reaction unit, composite fungus agent is made up by bacterium number is more composite than 2:1:5:1 of S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete, and bacterium powder bacteria containing amount is 3.5 × 10
9/ gram, composite fungus agent and solid waste 0.5% to mix in mass ratio; In algae reaction unit, micro-algae is that mixing the input density of micro-algae in liquid debris is 5.1 × 10 by chlorella, spirulina, grid algae in the micro-algae of the composite mixing of making of cell count ratio 1:1:2
5cell/mL.
Embodiment 2
Adopt the system of the process waste of the embodiment of the present invention to process ight soil, comprise the following steps:
(1) in equipment for separating liquid from solid, described ight soil is carried out solid-liquid separation process, to obtain solid waste and liquid debris; And filtration treatment is carried out to described liquid debris, filter and remove solid particulate;
(2) hold concurrently in oxygen reaction unit, adopt composite fungus agent to carry out double oxygen process 17 days to described solid waste, to obtain fertilizer, in the oxygen reaction unit that controls to hold concurrently, humidity is no more than 85%RH, temperature is no more than 60 DEG C;
(3), in algae reaction unit, utilize micro-algae to carry out biological decomposition 17 days to described liquid debris, obtain pretreated water;
(4), in refining plant, plant purification is carried out 10 days to the pretreated water that step (3) obtains, is purified water.
Wherein, hold concurrently in oxygen reaction unit, composite fungus agent is made up by bacterium number is more composite than 5:3:8:1 of S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete, and bacterium powder bacteria containing amount is 1.2 × 10
9/ gram, composite fungus agent and solid waste 0.1% to mix in mass ratio, and humidity is no more than 85%RH, and temperature is no more than 60 DEG C; In algae reaction unit, micro-algae is that mixing the input density of micro-algae after filtration in liquid is 4.3 × 10 by chlorella, spirulina, grid algae in the micro-algae of the composite mixing of making of cell count ratio 2:1:3
5cell/mL.
Embodiment 3
Adopt the system of the process waste of the embodiment of the present invention to process ight soil, comprise the following steps:
(1) in equipment for separating liquid from solid, described ight soil is carried out solid-liquid separation process, to obtain solid waste and liquid debris; And filtration treatment is carried out to described liquid debris, filter and remove solid particulate;
(2) hold concurrently in oxygen reaction unit, adopt composite fungus agent to carry out double oxygen process 15 days to described solid waste, to obtain fertilizer, in the oxygen reaction unit that controls to hold concurrently, humidity is no more than 85%RH, temperature is no more than 60 DEG C;
(3), in algae reaction unit, micro-algae is utilized to carry out biological decomposition 12 days to described liquid debris;
(4), in refining plant, plant purification is carried out 20 days to the liquid debris that step (3) obtains, is purified water.
Wherein, hold concurrently in oxygen reaction unit, composite fungus agent is made up by bacterium number is more composite than 4:2:8:1 of S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete, and bacterium powder bacteria containing amount is 3.8 × 10
9/ gram, composite fungus agent and solid waste 0.3% to mix in mass ratio; In algae reaction unit, micro-algae be by chlorella, spirulina, grid algae in the micro-algae of the composite mixing of making of cell count ratio 3:1:3, mix the input density of micro-algae in liquid debris and be preferably 9.7 × 10
5cell/mL.
Embodiment 1-3 night soil-treatment each Indexs measure result is as shown in table 1.
Table 1 night soil-treatment result
This table Plays data refer " miscellaneous domestic water quality standard ", " agricultural irrigation water quality standard " and " urban wastewater treatment firm pollutant emission standard ".
Conclusion: adopt the system of process waste of the present invention to process ight soil, through the worm egg mortality ratio of the solid (fertilizer) that oxygen reaction unit of holding concurrently obtains, excrement colibacillus group bacterium value and seed germination index and all meet fertilizer standard-required, and all meet irrigation water emission standard through liquid pH and COD that algae reaction unit obtains, in addition, apparatus of the present invention treatment capacity is larger, solid waste treatment capacity reaches more than 14kg/ days, and liquid debris treatment capacity reaches the 6L/ cycle more than.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (12)
1. process a method for waste, described waste comprises at least one in ight soil and kitchen waste, it is characterized in that, described method comprises:
(1) described waste is carried out solid-liquid separation process, obtain solid waste and liquid debris;
(2) adopt composite fungus agent to carry out double oxygen process 12-17 days to described solid waste, obtain fertilizer;
(3) utilize micro-algae to carry out biological decomposition 12-17 days to described liquid debris, obtain pretreated water.
2. method according to claim 1, is characterized in that, described composite fungus agent by S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete is composite makes.
3. method according to claim 2, it is characterized in that, described composite fungus agent by S. cervisiae, streptococcus faecium, plant lactobacillus, thermophilic actinomycete by bacterium number ratio (2-5): (1-3): (5-8): 1 compositely makes.
4. the method according to claim 1-3 any one, is characterized in that, in step (2), the mass ratio of described composite fungus agent and described solid waste is 0.1%-0.5%.
5. the method according to claim 1-3, is characterized in that, in step (2), temperature when adopting described composite fungus agent to process described solid waste is no more than 60 degrees Celsius; Humidity is no more than 85%RH.
6. method according to claim 1, is characterized in that, in step (3), described micro-algae is chlorella, spirulina, grid algae, at least one of quivering in algae and Anabaena spiroides.
7. method according to claim 6, is characterized in that, described micro-algae is in cell count ratio (1-3): 1:(2-3 by chlorella, spirulina, grid algae) the micro-algae of composite mixing of making.
8. the method according to claim 1,6 or 7, is characterized in that, the input density of described micro-algae in liquid debris is (4-10) × 10
5cell/mL.
9. method according to claim 1, is characterized in that, comprises further: carry out plant purification to the described pretreated water that step (3) obtains, be purified water.
10. method according to claim 9, is characterized in that, described plant is at least one in copper coin grass, epipremnum aureum, drug abuse grass, silk ball, Flower of Arabian Jasmine.
11. 1 kinds of systems processing waste, described waste comprises at least one in ight soil and kitchen waste, it is characterized in that, described system comprises:
Equipment for separating liquid from solid, described equipment for separating liquid from solid is suitable for described waste to carry out solid-liquid separation process, to obtain solid waste and liquid debris;
Double oxygen reaction unit, described double oxygen reaction unit is connected with described equipment for separating liquid from solid, and is suitable for adopting composite fungus agent to carry out double oxygen process, to obtain fertilizer to described solid waste;
Algae reaction unit, described algae reaction unit is connected with described equipment for separating liquid from solid, and is suitable for utilizing micro-algae to carry out biological decomposition to described liquid debris, to reduce the chemical oxygen demand (COD) in described liquid debris, obtains pretreated water.
12. systems according to claim 11, it is characterized in that, comprise further: refining plant, described refining plant is connected with described algae reaction unit, and the described pretreated water be suitable for described algae reaction unit obtains carries out plant purification, to be purified water.
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Effective date of registration: 20210324 Address after: 528311 4 Global Innovation Center, industrial road, Beijiao Town, Shunde District, Foshan, Guangdong, China Patentee after: GUANGDONG MEIDI WHITE HOUSEHOLD ELECTRICAL APPLIANCE TECHNOLOGY INNOVATION CENTER Co.,Ltd. Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311, 26-28, B District, Mei headquarters building, 6 Mei Road, Beijiao Town, Shunde District, Foshan, Guangdong. Patentee before: MIDEA GROUP Co.,Ltd. |