CN105753250A - Municipal wastewater purifying method - Google Patents

Municipal wastewater purifying method Download PDF

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Publication number
CN105753250A
CN105753250A CN201610156358.2A CN201610156358A CN105753250A CN 105753250 A CN105753250 A CN 105753250A CN 201610156358 A CN201610156358 A CN 201610156358A CN 105753250 A CN105753250 A CN 105753250A
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algae
sewage
distilled water
bridge
mixed
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CN201610156358.2A
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CN105753250B (en
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王培磊
吕慎金
刘笑天
李爱水
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Linyi Dongxu Food Co.,Ltd.
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Linyi University
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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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • 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
    • 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

Abstract

The invention discloses a municipal wastewater purifying method and belongs to the field of environmental protection. The principle of the method is as follows: nitrogen and phosphorus in domestic wastewater are absorbed by Cymbella and Synedra growing on the surface of stone, so that nitrogen, phosphorus and other organic matters are removed. The method has the advantages of energy saving, high efficiency, good effluent quality, small occupation area, little investment, low treatment cost, easy operation and the like, and determination proves that 98% of nitrogen and 96% of phosphorus in the wastewater can be removed through treatment.

Description

A kind of purification method of city domestic sewage
Technical field
The invention belongs to field of environment protection, particularly relate to the purification method of a kind of city domestic sewage.
Background technology
About the purification method of city domestic sewage, past Chen Jiandan discloses a kind of city domestic sewage and processes technique (application number CN201510758947.3), and this technique includes the steps such as precipitation, active sludge treatment, sterilizing.The city domestic sewage that this invention provides processes technique, is sprayed with dry fog form by water, then with ultraviolet disinfection；The particle diameter of dry fog own is less, ultraviolet can sterilizing more comprehensively, its effect can meet " People's Republic of China's drinking water sanitary standard " GB5749-2006 requirement completely, but infrastructure investment is big, troublesome poeration.
It addition, Wang Chunai discloses the purifying treatment method (application number CN201410058396.5) of a kind of city domestic sewage, including the pre-treatment step being sequentially carried out, biological respinse step, filtration step, sterilisation step and adsorption step.Pre-treatment step can remove sandstone and large-sized floating thing, processes, for follow-up, the water source providing stable；Biological respinse step realizes the low-carbon (LC) of city domestic sewage, efficiently removes, and has process load high, high treating effect, it is not necessary to additional organic and inorganic carbon source, oxygen consumption and capacity of returns are low；Filtration step eliminates the fine particle thing in sewage and float further；Sterilisation step is gone out except the hygienic hazards such as the antibacterial comprised in sewage, virus are biological；Adsorption step, can remove calcium ions and magnesium ions in sewage, fluorion and other heavy metal ion efficiently.Product water after purified treatment, pollutant are substantially removed, water stabilization, and water quality is better than country-level A standard.But the method floor space is big, relatively costly, easily causes secondary pollution.In order to overcome the deficiency of current technology, the invention provides a kind of method utilizing two kinds of freshwater benthic diatom purifying city sanitary sewages.The curved algae Cymbella of bridge and shank algae Synedra is two kinds and can be attached to the epontic freshwater benthic diatoms such as stone, wooden unit, stub, large-scale pasture and water.This method principle is: utilize the curved algae of bridge and shank algae in block faces growth the nitrogen in sanitary sewage, phosphorus to be absorbed, thus reaching to remove the purpose of nitrogen phosphorus and other organic matter；In other words, the nitrogen in sewage, phosphorus are used by the curved algae of bridge, shank algae as metabolic nutritive salt, then with precipitant quick lime, curved for the bridge in algae solution algae and shank algae are precipitated and are separated, thus reaching to remove purpose.This method has the features such as energy-conservation, efficient, effluent quality is good, floor space is little, small investment, and processing cost is low, easily operated.After measured, through processing the phosphorus of the nitrogen that can remove in waste water 98% and 96%.
Summary of the invention
It is an object of the invention to provide the purification method of a kind of city domestic sewage, this purpose is achieved by the following technical solution:
nullA kind of mixed-culture medium of the purification method for city domestic sewage，Mixed-culture medium is the curved algae of bridge and shank algae mixed-culture medium，The curved algae of described bridge and shank algae mixed-culture medium are by the composition of following parts by weight: pretreated sanitary sewage 12-18 part，Calcium chloride 0.04-0.09 part，Potassium silicate 0.2-0.7 part，Magnesium sulfate 0.03-0.08 part，Manganese sulfate 0.03-0.08 part，Zinc chloride 0.005-0.009 part，Copper chloride 0.0003-0.0005 part，Ferrous chloride 0.02-0.07 part，Sodium molybdate 0.0001-0.0003 part，B diammonium edta sodium 0.0004-0.0007 part，Cobaltous chloride 0.004-0.008 part，Vanadic anhydride 0.006-0.008 part，VitaminB10 .0004-0.0008 part，Vitamin B12 0.0007-0.0009 part，Biotin 0.0004-0.0007 part，Folic acid 0.002-0.008 part，Inositol 0.007-0.009 part，Composite Chinese herbal liquid 3-6 part，Heteroauxing 0.002-0.007 part，Distilled water 1000 parts；Wherein composite Chinese herbal liquid and preparation method thereof: take Radix Rehmanniae 3-7 part, Radix Bupleuri 4-9 part, Fructus Lycii 1-3 part, Folium Artemisiae Argyi 8-12 part, Folium Perillae 3-6 part by ratio of weight and the number of copies; Cortex Eucommiae 5-7 part, pure water 300 parts, heating, boil, then slow fire continues to boil 3 minutes; cease fire, be cooled to room temperature, abandon medicinal residues, taking liquid.
Preferably, described pretreated sanitary sewage pre-treatment step is as follows: first with the silk cover filtering sewage of 60 orders, remove floating thing, glass bits, hair, silt, leaves, the bigger solid content of plastic bag equal-volume, after sewage introduced in long 30 meters, wide 20 meters, the cement Aeration tank of deep 0.8 meter, pond is east-west, to accept the irradiation of more sunlight；The depth of water is maintained at 60 centimetres；Add the amount of 60 grams of quick lime by every cubic metre of sewage uniformly to splash quick lime, every 30 minutes, the amount full pool spilling head Alumen of 45 grams is added again by every cubic metre of sewage, then with the abundant aeration of air compressor machine, stirring 60 minutes, make Calx and Alumen fully dissolve, mix and with dirty Organic substance in water, chemical reaction fully occur, then natural sedimentation, fermentation, exposure 48 hours, skim the floating things such as water surface foam, do not stir at the bottom of pond, take sewage at the middle and upper levels, load in lighttight black plastic bucket, seal and preserve, standby.
The mixed-culture medium of the described purification method for city domestic sewage processes the purification method of sanitary sewage, step 1: the curved algae of bridge and shank algae inoculation method: take the common plastics bucket that a volume is 40 liters, add the above-mentioned curved algae of bridge and shank algae mixed-culture medium 25 liters, then take and be in exponential phase of growth, totally, pollution-free, the curved algae algae kind of eugonic bridge and shank algae algae kind are inoculated respectively, inoculum density is bridge 4.5 ten thousand cells/ml of curved algae, 3.5 ten thousand cells/ml of shank algae, shake up gently, bung is muffled with one block of plastic sheeting, avoid polluting, stand-by；
Step 2: the curved algae of bridge and shank algae mixed culturing method: take vitreous distilled water bottle of one 25 liters, wash, the distilled water bottle after washing adopts disinfectant to sterilize again 20 minutes, and described disinfectant is Chinese herbal medicine composite disinfectant；Described Chinese herbal medicine composite disinfectant constituent (ratio of weight and number): Radix seu Folium Alchorneae trewioidis 2-4 part, Herba Houttuyniae 6-9 part, Radix Bupleuri 5-8 part; Herba Glechomae 7-12 part, Herba Pogostemonis 10-15 part, Rhizoma Atractylodis 7-12 part; Fructus Kochiae 8-15 part; Herba Violae 5-7 part, Radix Ophiopogonis 3-6 part, Radix Isatidis 0.5-0.9 part; Radix Stemonae 10-14 part; Herba Andrographis 5-8 part, Herba Taraxaci 2-6 part, Phellinus igniarius (L. ex Fr.) Quel. 1-3 part；Then putting small stone block into the 2/3 of distilled water bottle volume from the distilled water bottle bottleneck after sterilization, every piece of stone weight is 100-120 gram, then adds the described algae solution inoculated to just stone block not being come from bottleneck；Sealing bottleneck with 2 layers of clean newspaper and rubber band, put this distilled water bottle into microdisk electrode room together with algae solution therein and stone block and cultivate, culturing room's air-conditioning temperature control, fluorescent tube provides illumination, and the quantity to open fluorescent tube carrys out regulating illumination intensity；Co-culturing 8 days, arrange intensity of illumination 6000lux, temperature 25 DEG C, the photoperiod is set to L16+D8, i.e. 16 h light, 8 h dark, then 16 h light, 8 h dark again, moves in circles；To the 8th day end, stopping cultivating, put into the Plastic Drum that volume is 30 liters by algae solution from the faucet bottom Distilled water bucket, now major part frustule is attached to small stone surface, and small part is in algae solution；
Step 3: microalgae and water body separation method: the amount addition quick lime of 5 grams will be added in the algae solution in the Plastic Drum of described 30 liters by every liter of algae solution, it is gently mixed, stand 8 hours, now frustule and Calx bits sink to bottom, supernatant is drawn with siphon, being the clean water after process, abandon bottom sediment, purification completes.
nullFor city domestic sewage purification method mixed-culture medium process sanitary sewage purification method，Preferably，Carry out second and take turns sewage disposal，Second to take turns sewage treatment step as follows: when carrying out second and taking turns sewage disposal，The curved algae of substantial amounts of bridge and shank algae it is attached to because of stone surface，Without carrying out inoculation algae kind again，Have only to bleed off described in the above-mentioned curved algae of the bridge prepared and shank algae mixed-culture medium being joined in the distilled water bottle of algae solution and just by till stone submergence，Then bottleneck is sealed with 2 layers of clean newspaper and rubber band，Put this Distilled water bucket into microdisk electrode room together with algae solution therein and stone block to cultivate，Culturing room's air-conditioning temperature control，Fluorescent tube provides illumination，Quantity to open fluorescent tube carrys out regulating illumination intensity，Co-culture 8 days，Intensity of illumination 6000lux is set，Temperature 25 DEG C，Photoperiod is set to L16+D8，I.e. 16 h light，8 h dark，Then 16 h light again，8 h dark，Move in circles；To the 8th day end, stop cultivating, algae solution is put into the Plastic Drum that volume is 30 liters from the faucet bottom distilled water bottle, so repeatedly, carries out 5 altogether and take turns cultivation and namely all terminate, now algae solution is aging, and algae solution has been infiltrated a large amount of miscellaneous bacteria, other microalgae, protozoacide etc., if it is desired to continue with sewage, it is necessary to stone is taken out from bottleneck, distilled water bottle and stone are washed, repeats the above-mentioned all operations from step 1 to step 3.
Preferably, the purification method of a kind of city domestic sewage can also be summarized as follows 5 steps:
nullThe preparation curved algae of bridge of the curved algae of step Bridge 1 and shank algae mixed-culture medium and shank algae mixed-culture medium are by the composition of following parts by weight: pretreated sanitary sewage 12-18 part，Calcium chloride 0.04-0.09 part，Potassium silicate 0.2-0.7 part，Magnesium sulfate 0.03-0.08 part，Manganese sulfate 0.03-0.08 part，Zinc chloride 0.005-0.009 part，Copper chloride 0.0003-0.0005 part，Ferrous chloride 0.02-0.07 part，Sodium molybdate 0.0001-0.0003 part，B diammonium edta sodium 0.0004-0.0007 part，Cobaltous chloride 0.004-0.008 part，Vanadic anhydride 0.006-0.008 part，VitaminB10 .0004-0.0008 part，Vitamin B12 0.0007-0.0009 part，Biotin 0.0004-0.0007 part，Folic acid 0.002-0.008 part，Inositol 0.007-0.009 part，Composite Chinese herbal liquid 3-6 part，Heteroauxing 0.002-0.007 part，Distilled water 1000 parts.Wherein composite Chinese herbal liquid and preparation method thereof: take Radix Rehmanniae 3-7 part, Radix Bupleuri 4-9 part, Fructus Lycii 1-3 part, Folium Artemisiae Argyi 8-12 part, Folium Perillae 3-6 part by weight; Cortex Eucommiae 5-7 part, pure water 300 parts, heating, boil, then slow fire continues to boil 3 minutes; cease fire, be cooled to room temperature, abandon medicinal residues, taking liquid.
In culture fluid, the physiological function of each component is as follows: sanitary sewage mainly provides the nitrogen required for the curved algae of bridge and the growth of shank algae, phosphorus；Calcium chloride, potassium silicate, magnesium sulfate, manganese sulfate, zinc chloride, copper chloride, ferrous chloride, sodium molybdate, b diammonium edta sodium, cobaltous chloride, vanadic anhydride mainly provides microelements of calcium, silicon, magnesium, manganese, zinc, copper, ferrum, molybdenum, sodium, cobalt, vanadium；Vitamin B1, vitamin B12, biotin, folic acid, inositol mainly provides various vitamin；Composite Chinese herbal liquid is mainly used in killing and suppress the antibacterial in algae solution, virus and protozoacide；Heteroauxing is a kind of plant growth substance, and the curved algae of bridge and shank algae are grown fine facilitation.
The curved algae of step Bridge 2 and the inoculation of shank algae take the common plastics bucket that a volume is 40 liters, add the curved algae of bridge described in step 1 and shank algae mixed-culture medium 25 liters, then take and be in exponential phase of growth, the curved algae algae kind of bridge clean, pollution-free, eugonic and shank algae algae kind and inoculate respectively, inoculum density is bridge 4.5 ten thousand cells/ml of curved algae, 3.5 ten thousand cells/ml of shank algae, shake up gently, muffle bung with one block of plastic sheeting, avoid polluting, stand-by；
Step 3 microdisk electrode takes vitreous distilled water bottle of one 25 liters, wash, putting small stone block into the 2/3 of distilled water bottle volume from bottleneck, every piece of stone weight is 100-120 gram, then adds the algae solution inoculated described in step 2 to just stone block not being come from bottleneck；Sealing bottleneck with 2 layers of clean newspaper and rubber band, put this distilled water bottle into microdisk electrode room together with algae solution therein and stone block and cultivate, culturing room's air-conditioning temperature control, fluorescent tube provides illumination, and the quantity to open fluorescent tube carrys out regulating illumination intensity；Co-culturing 8 days, arrange intensity of illumination 6000lux, temperature 25 DEG C, the photoperiod is set to L16+D8, i.e. 16 h light, 8 h dark, then 16 h light, 8 h dark again, moves in circles；To the 8th day end, stopping cultivating, put into the Plastic Drum that volume is 30 liters by algae solution from the faucet bottom distilled water bottle, now major part frustule is attached to small stone surface, and small part is in algae solution.
Step 4 microalgae separates the amount addition quick lime that will add 5 grams in the algae solution described in step 3 by every liter of algae solution with water body, is gently mixed, stands 8 hours, now frustule and Calx bits sink to bottom, draw supernatant with siphon, are the clean water after process, abandoning bottom sediment, purification completes.
Step 5 second takes turns sewage disposal when carrying out second and taking turns sewage disposal, the curved algae of substantial amounts of bridge and shank algae it is attached to because of stone surface, without carrying out inoculation algae kind again, it is only necessary to the curved algae of bridge step 1 prepared and shank algae mixed-culture medium join in the distilled water bottle bleeding off algae solution described in step 3 and just by till stone submergence.Then sealing bottleneck with 2 layers of clean newspaper and rubber band, put this distilled water bottle into microdisk electrode room together with algae solution therein and stone block and cultivate, culturing room's air-conditioning temperature control, fluorescent tube provides illumination, and the quantity to open fluorescent tube carrys out regulating illumination intensity.Co-culturing 8 days, arrange intensity of illumination 6000lux, temperature 25 DEG C, the photoperiod is set to L16+D8, i.e. 16 h light, 8 h dark, then 16 h light, 8 h dark again, moves in circles；To the 8th day end, stop cultivating, algae solution is put into the Plastic Drum that volume is 30 liters from the faucet bottom distilled water bottle.So repeatedly, carry out 5 altogether to take turns cultivation and namely all terminate.Now algae solution is aging, and has infiltrated a large amount of miscellaneous bacteria, other microalgae, protozoacide etc. in algae solution, if it is desired to continue with sewage, it is necessary to taken out from bottleneck by stone, the stone renewed, and repeats all operations from step 1 to step 4.
Beneficial outcomes
This method principle is: utilize the curved algae Cymbella of bridge and shank algae Synedra in block faces growth the nitrogen in sanitary sewage, phosphorus to be absorbed, thus reaching to remove the purpose of nitrogen, phosphorus and other organic matter.This method has the advantages such as energy-conservation, efficient, effluent quality is good, floor space is little, small investment, and processing cost is low, easily operated.After measured, through processing the phosphorus of the nitrogen that can remove in waste water 98% and 96%.
Accompanying drawing explanation
In Fig. 1 distilled water bottle, the cultivation curved algae of bridge and shank algae carry out the schematic diagram of purifying city sanitary sewage.
In figure, small stone block is immersed in micro algae culturing liquid, and bottle mouth position 2 layers of clean newspaper and rubber band seal.
Detailed description of the invention
Further this technology is illustrated below in conjunction with embodiment.
nullA kind of mixed-culture medium of the purification method for city domestic sewage，Mixed-culture medium is the curved algae of bridge and shank algae mixed-culture medium，The curved algae of described bridge and shank algae mixed-culture medium are by the composition of following parts by weight: pretreated sanitary sewage 12-18 part，Calcium chloride 0.04-0.09 part，Potassium silicate 0.2-0.7 part，Magnesium sulfate 0.03-0.08 part，Manganese sulfate 0.03-0.08 part，Zinc chloride 0.005-0.009 part，Copper chloride 0.0003-0.0005 part，Ferrous chloride 0.02-0.07 part，Sodium molybdate 0.0001-0.0003 part，B diammonium edta sodium 0.0004-0.0007 part，Cobaltous chloride 0.004-0.008 part，Vanadic anhydride 0.006-0.008 part，VitaminB10 .0004-0.0008 part，Vitamin B12 0.0007-0.0009 part，Biotin 0.0004-0.0007 part，Folic acid 0.002-0.008 part，Inositol 0.007-0.009 part，Composite Chinese herbal liquid 3-6 part，Heteroauxing 0.002-0.007 part，Distilled water 1000 parts；Wherein composite Chinese herbal liquid and preparation method thereof: take Radix Rehmanniae 3-7 part, Radix Bupleuri 4-9 part, Fructus Lycii 1-3 part, Folium Artemisiae Argyi 8-12 part, Folium Perillae 3-6 part by ratio of weight and the number of copies; Cortex Eucommiae 5-7 part, pure water 300 parts, heating, boil, then slow fire continues to boil 3 minutes; cease fire, be cooled to room temperature, abandon medicinal residues, taking liquid.
Preferably, described pretreated sanitary sewage pre-treatment step is as follows: first with the silk cover filtering sewage of 60 orders, remove floating thing, glass bits, hair, silt, leaves, the bigger solid content of plastic bag equal-volume, after sewage introduced in long 30 meters, wide 20 meters, the cement Aeration tank of deep 0.8 meter, pond is east-west, to accept the irradiation of more sunlight；The depth of water is maintained at 60 centimetres；Add the amount of 60 grams of quick lime by every cubic metre of sewage uniformly to splash quick lime, every 30 minutes, the amount full pool spilling head Alumen of 45 grams is added again by every cubic metre of sewage, then with the abundant aeration of air compressor machine, stirring 60 minutes, make Calx and Alumen fully dissolve, mix and with dirty Organic substance in water, chemical reaction fully occur, then natural sedimentation, fermentation, exposure 48 hours, skim the floating things such as water surface foam, do not stir at the bottom of pond, take sewage at the middle and upper levels, load in lighttight black plastic bucket, seal and preserve, standby.
The mixed-culture medium of the described purification method for city domestic sewage processes the purification method of sanitary sewage, step 1: the curved algae of bridge and shank algae inoculation method: take the common plastics bucket that a volume is 40 liters, add the above-mentioned curved algae of bridge and shank algae mixed-culture medium 25 liters, then take and be in exponential phase of growth, totally, pollution-free, the curved algae algae kind of eugonic bridge and shank algae algae kind are inoculated respectively, inoculum density is bridge 4.5 ten thousand cells/ml of curved algae, 3.5 ten thousand cells/ml of shank algae, shake up gently, bung is muffled with one block of plastic sheeting, avoid polluting, stand-by；
Step 2: the curved algae of bridge and shank algae mixed culturing method: take vitreous distilled water bottle of one 25 liters, wash, the distilled water bottle after washing adopts disinfectant to sterilize again 20 minutes, and described disinfectant is Chinese herbal medicine composite disinfectant；Described Chinese herbal medicine composite disinfectant constituent (ratio of weight and number): Radix seu Folium Alchorneae trewioidis 2-4 part, Herba Houttuyniae 6-9 part, Radix Bupleuri 5-8 part; Herba Glechomae 7-12 part, Herba Pogostemonis 10-15 part, Rhizoma Atractylodis 7-12 part; Fructus Kochiae 8-15 part; Herba Violae 5-7 part, Radix Ophiopogonis 3-6 part, Radix Isatidis 0.5-0.9 part; Radix Stemonae 10-14 part; Herba Andrographis 5-8 part, Herba Taraxaci 2-6 part, Phellinus igniarius (L. ex Fr.) Quel. 1-3 part；Then putting small stone block into the 2/3 of distilled water bottle volume from the distilled water bottle bottleneck after sterilization, every piece of stone weight is 100-120 gram, then adds the described algae solution inoculated to just stone block not being come from bottleneck；Sealing bottleneck with 2 layers of clean newspaper and rubber band, put this distilled water bottle into microdisk electrode room together with algae solution therein and stone block and cultivate, culturing room's air-conditioning temperature control, fluorescent tube provides illumination, and the quantity to open fluorescent tube carrys out regulating illumination intensity；Co-culturing 8 days, arrange intensity of illumination 6000lux, temperature 25 DEG C, the photoperiod is set to L16+D8, i.e. 16 h light, 8 h dark, then 16 h light, 8 h dark again, moves in circles；To the 8th day end, stopping cultivating, put into the Plastic Drum that volume is 30 liters by algae solution from the faucet bottom Distilled water bucket, now major part frustule is attached to small stone surface, and small part is in algae solution；
Step 3: microalgae and water body separation method: the amount addition quick lime of 5 grams will be added in the algae solution in the Plastic Drum of described 30 liters by every liter of algae solution, it is gently mixed, stand 8 hours, now frustule and Calx bits sink to bottom, supernatant is drawn with siphon, being the clean water after process, abandon bottom sediment, purification completes.
nullFor city domestic sewage purification method mixed-culture medium process sanitary sewage purification method，Preferably，Carry out second and take turns sewage disposal，Second to take turns sewage treatment step as follows: when carrying out second and taking turns sewage disposal，The curved algae of substantial amounts of bridge and shank algae it is attached to because of stone surface，Without carrying out inoculation algae kind again，Have only to bleed off described in the above-mentioned curved algae of the bridge prepared and shank algae mixed-culture medium being joined in the distilled water bottle of algae solution and just by till stone submergence，Then bottleneck is sealed with 2 layers of clean newspaper and rubber band，Put this Distilled water bucket into microdisk electrode room together with algae solution therein and stone block to cultivate，Culturing room's air-conditioning temperature control，Fluorescent tube provides illumination，Quantity to open fluorescent tube carrys out regulating illumination intensity，Co-culture 8 days，Intensity of illumination 6000lux is set，Temperature 25 DEG C，Photoperiod is set to L16+D8，I.e. 16 h light，8 h dark，Then 16 h light again，8 h dark，Move in circles；To the 8th day end, stop cultivating, algae solution is put into the Plastic Drum that volume is 30 liters from the faucet bottom distilled water bottle, so repeatedly, carries out 5 altogether and take turns cultivation and namely all terminate, now algae solution is aging, and algae solution has been infiltrated a large amount of miscellaneous bacteria, other microalgae, protozoacide etc., if it is desired to continue with sewage, it is necessary to stone is taken out from bottleneck, distilled water bottle and stone are washed, repeats the above-mentioned all operations from step 1 to step 3.
The curved algae of application examples Bridge 1 and shank algae mixed-culture medium are by the composition of following parts by weight: pretreated sanitary sewage 13 parts, 0.05 part of calcium chloride, potassium silicate 0.2 part, 0.03 part of magnesium sulfate, manganese sulfate 0.04 part, zinc chloride 0.006 part, copper chloride 0.0003 part, ferrous chloride 0.03 part, sodium molybdate 0.0001 part, 0.0004 part of b diammonium edta sodium, cobaltous chloride 0.004 part, vanadic anhydride 0.006 part, vitaminB10 .0004 part, vitamin B12 0.0007 part, biotin 0.0004 part, 0.003 part of folic acid, inositol 0.007 part, composite Chinese herbal liquid 3 parts, heteroauxing 0.003 part, distilled water 1000 parts.Wherein composite Chinese herbal liquid and preparation method thereof: taking Radix Rehmanniae 4 parts, Radix Bupleuri 6 parts, Fructus Lycii 1 part, Folium Artemisiae Argyi 9 parts, Folium Perillae 4 parts, the Cortex Eucommiae 5 parts, pure water 300 parts, heating by weight, boil, then slow fire continues to boil 3 minutes, ceases fire, is cooled to room temperature, abandons medicinal residues, taking liquid.
The curved algae of application examples Bridge 2 and shank algae mixed-culture medium are by the composition of following parts by weight: pretreated sanitary sewage 14 parts, 0.07 part of calcium chloride, potassium silicate 0.5 part, 0.04 part of magnesium sulfate, manganese sulfate 0.04 part, zinc chloride 0.008 part, copper chloride 0.0005 part, ferrous chloride 0.04 part, sodium molybdate 0.0002 part, 0.0005 part of b diammonium edta sodium, cobaltous chloride 0.006 part, vanadic anhydride 0.007 part, vitaminB10 .0005 part, vitamin B12 0.0008 part, biotin 0.0006 part, 0.005 part of folic acid, inositol 0.008 part, composite Chinese herbal liquid 4 parts, heteroauxing 0.005 part, distilled water 1000 parts.Wherein composite Chinese herbal liquid and preparation method thereof: taking Radix Rehmanniae 5 parts, Radix Bupleuri 6 parts, Fructus Lycii 2 parts, Folium Artemisiae Argyi 10 parts, Folium Perillae 5 parts, the Cortex Eucommiae 6 parts, pure water 300 parts, heating by weight, boil, then slow fire continues to boil 3 minutes, ceases fire, is cooled to room temperature, abandons medicinal residues, taking liquid.
The curved algae of application examples 3 bridge and shank algae mixed-culture medium are by the composition of following parts by weight: pretreated sanitary sewage 17 parts, 0.08 part of calcium chloride, potassium silicate 0.7 part, 0.08 part of magnesium sulfate, manganese sulfate 0.07 part, zinc chloride 0.008 part, copper chloride 0.0005 part, ferrous chloride 0.06 part, sodium molybdate 0.0003 part, 0.0007 part of b diammonium edta sodium, cobaltous chloride 0.008 part, vanadic anhydride 0.008 part, vitaminB10 .0007 part, vitamin B12 0.0009 part, biotin 0.0007 part, 0.007 part of folic acid, inositol 0.008 part, composite Chinese herbal liquid 6 parts, heteroauxing 0.007 part, distilled water 1000 parts.Wherein composite Chinese herbal liquid and preparation method thereof: taking Radix Rehmanniae 7 parts, Radix Bupleuri 8 parts, Fructus Lycii 3 parts, Folium Artemisiae Argyi 11 parts, Folium Perillae 6 parts, the Cortex Eucommiae 7 parts, pure water 300 parts, heating by weight, boil, then slow fire continues to boil 3 minutes, ceases fire, is cooled to room temperature, abandons medicinal residues, taking liquid.
Sanitary sewage preprocess method sanitary sewage used needs to carry out pretreatment before being used for supporting algae, method is: first with the silk cover filtering sewage of 60 orders, remove floating thing, glass bits, hair, silt, leaves, the bigger solid content of plastic bag equal-volume, after sewage introduced in long 30 meters, wide 20 meters, the cement Aeration tank of deep 0.8 meter, pond is east-west, to accept the irradiation of more sunlight；The depth of water is maintained at 60 centimetres；Add the amount of 60 grams of quick lime by every cubic metre of sewage uniformly to splash quick lime, every 30 minutes, the amount full pool spilling head Alumen of 45 grams is added again by every cubic metre of sewage, then with the abundant aeration of air compressor machine, stirring 60 minutes, make Calx and Alumen fully dissolve, mix and with dirty Organic substance in water, chemical reaction fully occur, then natural sedimentation, fermentation, exposure 48 hours, skim the floating things such as water surface foam, do not stir at the bottom of pond, take sewage at the middle and upper levels, load in lighttight black plastic bucket, seal and preserve, standby；
Stone used should be cleaned in advance, is placed in distilled water and heats, boils 5 minutes, and sterilization uses after cooling；
Calcium chloride used, potassium silicate, magnesium sulfate, manganese sulfate, zinc chloride, copper chloride, ferrous chloride, sodium molybdate, b diammonium edta sodium, cobaltous chloride, vanadic anhydride, vitamin B1, vitamin B12, biotin, folic acid, inositol, heteroauxing chemical drugs purity is both needed to chemical pure rank；
The curved algae of bridge of described inoculation and shank algae should carry out purifying (this area conventional method, as long as can realize purifying, for instance Guo Shi extraction method) in advance, and during to guarantee to inoculate, algae kind is for purebred and be in eugonic exponential phase of growth；
Retort sterilization can not be heated when described distilled water bottle non-refractory is scrubbed on stove or directly scald with boiled water, it should washing with 8% dilute sulfuric acid or 15% dilute hydrochloric acid, then with distilled water rinse 3-5 time.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in previous embodiment still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of embodiment of the present invention technical scheme.

Claims (4)

  1. null1. the mixed-culture medium for the purification method of city domestic sewage，It is characterized in that，Described mixed-culture medium is the curved algae of bridge and shank algae mixed-culture medium，The curved algae of described bridge and shank algae mixed-culture medium are by the composition of following parts by weight: pretreated sanitary sewage 12-18 part，Calcium chloride 0.04-0.09 part，Potassium silicate 0.2-0.7 part，Magnesium sulfate 0.03-0.08 part，Manganese sulfate 0.03-0.08 part，Zinc chloride 0.005-0.009 part，Copper chloride 0.0003-0.0005 part，Ferrous chloride 0.02-0.07 part，Sodium molybdate 0.0001-0.0003 part，B diammonium edta sodium 0.0004-0.0007 part，Cobaltous chloride 0.004-0.008 part，Vanadic anhydride 0.006-0.008 part，VitaminB10 .0004-0.0008 part，Vitamin B12 0.0007-0.0009 part，Biotin 0.0004-0.0007 part，Folic acid 0.002-0.008 part，Inositol 0.007-0.009 part，Composite Chinese herbal liquid 3-6 part，Heteroauxing 0.002-0.007 part，Distilled water 1000 parts；Wherein composite Chinese herbal liquid and preparation method thereof: take Radix Rehmanniae 3-7 part, Radix Bupleuri 4-9 part, Fructus Lycii 1-3 part, Folium Artemisiae Argyi 8-12 part, Folium Perillae 3-6 part by ratio of weight and the number of copies; Cortex Eucommiae 5-7 part, pure water 300 parts, heating, boil, then slow fire continues to boil 3 minutes; cease fire, be cooled to room temperature, abandon medicinal residues, taking liquid.
  2. 2. according to claim 1 for the mixed-culture medium of the purification method of city domestic sewage, it is characterized in that, preferably, described pretreated sanitary sewage pre-treatment step is as follows: first with the silk cover filtering sewage of 60 orders, remove floating thing, glass bits, hair, silt, leaves, the bigger solid content of plastic bag equal-volume, after sewage introduced in long 30 meters, wide 20 meters, the cement Aeration tank of deep 0.8 meter, pond be east-west, to accept the irradiation of more sunlight；The depth of water is maintained at 60 centimetres；Add the amount of 60 grams of quick lime by every cubic metre of sewage uniformly to splash quick lime, every 30 minutes, the amount full pool spilling head Alumen of 45 grams is added again by every cubic metre of sewage, then with the abundant aeration of air compressor machine, stirring 60 minutes, make Calx and Alumen fully dissolve, mix and with dirty Organic substance in water, chemical reaction fully occur, then natural sedimentation, fermentation, exposure 48 hours, skim the floating things such as water surface foam, do not stir at the bottom of pond, take sewage at the middle and upper levels, load in lighttight black plastic bucket, seal and preserve, standby.
  3. 3. the mixed-culture medium of the purification method for city domestic sewage according to claim 1 processes the purification method of sanitary sewage, it is characterised in that
    Step 1: the curved algae of bridge and shank algae inoculation method: take the common plastics bucket that a volume is 40 liters, add the curved algae of bridge described in claim 1 or 2 and shank algae mixed-culture medium 25 liters, then take and be in exponential phase of growth, the curved algae algae kind of bridge clean, pollution-free, eugonic and shank algae algae kind and inoculate respectively, inoculum density is bridge 4.5 ten thousand cells/ml of curved algae, 3.5 ten thousand cells/ml of shank algae, shake up gently, muffle bung with one block of plastic sheeting, avoid polluting, stand-by；
    Step 2: the curved algae of bridge and shank algae mixed culturing method: take vitreous distilled water bottle of one 25 liters, wash, the distilled water bottle after washing adopts disinfectant to sterilize again 20 minutes, and described disinfectant is Chinese herbal medicine composite disinfectant；Described Chinese herbal medicine composite disinfectant constituent (ratio of weight and number): Radix seu Folium Alchorneae trewioidis 2-4 part, Herba Houttuyniae 6-9 part, Radix Bupleuri 5-8 part; Herba Glechomae 7-12 part, Herba Pogostemonis 10-15 part, Rhizoma Atractylodis 7-12 part; Fructus Kochiae 8-15 part; Herba Violae 5-7 part, Radix Ophiopogonis 3-6 part, Radix Isatidis 0.5-0.9 part; Radix Stemonae 10-14 part; Herba Andrographis 5-8 part, Herba Taraxaci 2-6 part, Phellinus igniarius (L. ex Fr.) Quel. 1-3 part；Then putting small stone block into the 2/3 of distilled water bottle volume from the distilled water bottle bottleneck after sterilization, every piece of stone weight is 100-120 gram, then adds the algae solution inoculated described in claim 3 to just stone block not being come from bottleneck；Sealing bottleneck with 2 layers of clean newspaper and rubber band, put this distilled water bottle into microdisk electrode room together with algae solution therein and stone block and cultivate, culturing room's air-conditioning temperature control, fluorescent tube provides illumination, and the quantity to open fluorescent tube carrys out regulating illumination intensity；Co-culturing 8 days, arrange intensity of illumination 6000lux, temperature 25 DEG C, the photoperiod is set to L16+D8, i.e. 16 h light, 8 h dark, then 16 h light, 8 h dark again, moves in circles；To the 8th day end, stopping cultivating, put into the Plastic Drum that volume is 30 liters by algae solution from the faucet bottom Distilled water bucket, now major part frustule is attached to small stone surface, and small part is in algae solution；
    Step 3: microalgae and water body separation method: the amount addition quick lime of 5 grams will be added in the algae solution in the Plastic Drum of described 30 liters by every liter of algae solution, it is gently mixed, stand 8 hours, now frustule and Calx bits sink to bottom, supernatant is drawn with siphon, being the clean water after process, abandon bottom sediment, purification completes.
  4. null4. the mixed-culture medium of the purification method for city domestic sewage according to claim 3 processes the purification method of sanitary sewage，It is characterized in that，Preferably，Carry out second and take turns sewage disposal，Second to take turns sewage treatment step as follows: when carrying out second and taking turns sewage disposal，The curved algae of substantial amounts of bridge and shank algae it is attached to because of stone surface，Without carrying out inoculation algae kind again，Have only to the curved algae of bridge that claim 1 prepared and shank algae mixed-culture medium joins in the distilled water bottle bleeding off algae solution described in claim 4 and just by till stone submergence，Then bottleneck is sealed with 2 layers of clean newspaper and rubber band，Put this Distilled water bucket into microdisk electrode room together with algae solution therein and stone block to cultivate，Culturing room's air-conditioning temperature control，Fluorescent tube provides illumination，Quantity to open fluorescent tube carrys out regulating illumination intensity，Co-culture 8 days，Intensity of illumination 6000lux is set，Temperature 25 DEG C，Photoperiod is set to L16+D8，I.e. 16 h light，8 h dark，Then 16 h light again，8 h dark，Move in circles；To the 8th day end, stop cultivating, algae solution is put into the Plastic Drum that volume is 30 liters from the faucet bottom distilled water bottle, so repeatedly, carries out 5 altogether and take turns cultivation and namely all terminate, now algae solution is aging, and algae solution has been infiltrated a large amount of miscellaneous bacteria, other microalgae, protozoacide etc., if it is desired to continue with sewage, it is necessary to stone is taken out from bottleneck, distilled water bottle and stone are washed, repeats all operations from step 1 to step 3 described in claim 3.
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