CN105084635A - Sewage processing method based on biology-physics combined process - Google Patents
Sewage processing method based on biology-physics combined process Download PDFInfo
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- CN105084635A CN105084635A CN201410180447.1A CN201410180447A CN105084635A CN 105084635 A CN105084635 A CN 105084635A CN 201410180447 A CN201410180447 A CN 201410180447A CN 105084635 A CN105084635 A CN 105084635A
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Abstract
The invention relates to a sewage processing method based on a biology-physics combined process. Organic sewage is subjected to fermentation, decomposition, purification and other processing steps by an air-floatation filter tank, a regulating basin, a fermentation decomposition basin, an aeration biological basin and a product retention basin under the effects of a microbial flora, sludge, volcanic rock and air, and finally bioactive water reusable in animal and plant growth processes is generated. The system is capable of realizing full automatic control, and is simple in operation, relatively small in technological investment, relatively low in sewage processing cost, high in processing efficiency and stable in performance.
Description
technical field
The present invention relates to a kind of based on the legal sewage water treatment method of biology-physical set, particularly relate to a kind of by dissolved air flotation
Be organically combined with microbiological treatment and the method for the efficient sewerage processing formed.The present invention treatable organically-polluted water be except minority contains the various organically-polluted waters play microorganism except the organically-polluted water of strong toxicity inhibition effect, comprise large-scale cultivation factory, casing source mill, urban organic sewage, high density catering trade sewage and slaughterhouse etc.
background technology
Along with the quickening of urbanization process, economic quick growth and population increase rapidly, in order to meet people to material life needs, slaughterhouse, large-scale plant, casing source mill, catering trade etc. constantly increase scale, and then cause organic sewage quantity discharged to be surged.China is a large agricultural country having 1,400,000,000 populations, the quantity discharged of annual organic waste water occupies first place in the world, these sewage pool together, unpleasant bad smell can be produced, and easily grow various germ, this has not only increased the weight of the load of municipal sewage treatment, and more serious destroys physical environment, the health of harmful to human.In order to solve the problem, various sewage disposal device and technology are applied and give birth to, and mainly contain the basic skills such as physical partition method, physico-chemical processes and biological treatment.Wherein physical partition method mainly contains precipitation, air supporting, ultrasonic, the technique such as microwave, filtration treatment; Physico-chemical processes mainly contains the techniques such as coagulating sedimentation, electrofloatation, chemical dosing, photochemical catalytic oxidation; Biological treatment is as techniques such as traditional activated sludge process and derivative oxidation ditch, AB method, SBR methods.Aforesaid method because its power consumption is high, investment is large, complex management, fundamentally source is polluted in process efficiently conscientiously, more not from treasuring resource, improving resource utilization, turns waste into wealth, recycle considers.Wherein, depend merely on mud in biological treatment and bear larger load and change of water quality treatment effect uncertainty is very high, the sewage after process and solid waste directly discharge, a large amount of resources will be wasted, therefore, must other technologies be sought, realize the cyclicity of resource, utilize at many levels.
summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of method for the treatment of sewage by biological-physical combination method.Dissolved air flotation technology and microbiological treatment is the object of the invention is to organically combine and form the instrument and supplies of efficient sewerage processing.Not only efficiently solve the technological difficulties in treatment of Organic Wastewater process, and can the waste water crossed through this device processes of recycle and solid waste, and then achieve the recycle of resource.
A method for treating sewage by biological-physical combination method, comprises the following steps successively:
(1) organic sewage is entered air-float filtration pond, air-float filtration equipment can be scraped scum silica frost, discharges scum silica frost, produce microbubble, and wherein the amount of microorganism species in sewage is 300 ~ 3000mg/L, and this process COD clearance is 5 ~ 20%; By the sewage of preliminary treatment, enter adjustment pond by the dividing plate 11 of porous;
(2) sewage in adjustment pond will be flowed into, oxygen in sewage is promoted to 1 ~ 2.5mg/L, the amount of microorganism species in sewage that regulating and controlling microbial generation equipment produces is 3000 ~ 8000mg/L, make COD under the condition of step (1) by this process, further removal 10 ~ 30%, wherein hydraulic detention time is 5 ~ 10 days;
(3) flowed into the sewage of fermentation decomposing pool by porous barrier, make the COD of organic waste water remove 20 ~ 30% further, wherein the amount of microorganism in sewage is 3000 ~ 10000mg/L, and hydraulic detention time is 5 ~ 12 days;
(4) from step (3), flow into the sewage of aeration tank through porous barrier, make COD remove 20 ~ 30% further, wherein the amount of microorganism in sewage is 3000 ~ 12000mg/L, and hydraulic detention time is 5 ~ 10 days;
(5) from step (4), the process water of product retention basin is flowed into through glass fibre non-woven filter plate, under the effect of microorganism species, mud, volcanics and aerator, decompose further in aeration tank, make the COD≤120mg/L of sewage, wherein the amount of microorganism species in sewage is 500 ~ 5000mg/L, wherein hydraulic detention time is after 5 ~ 10 days, creates the finished product and bioactive water.
Described method, in described step (5), every 5 ~ 10 days according to return sludge ratio, the sludge reflux in product retention basin to adjustment pond and air supporting filtering basin,
Above-mentioned return sludge ratio: calculate according to formula (1):
In formula: r is return sludge ratio, MLSS is retention basin mixing mouth solids concn (mg/L), and RSSS is sludge reflux
Concentration (mg/L).
Described method, the pH value of the organic sewage described in described step (1) is 5 ~ 10.5, and temperature of reaction is
16 ~ 30 DEG C; Hydraulic detention time is 30 ~ 60min.
Described method, the microorganism species composition that the microorganism generation equipment described in described step (2) produces is by hundred
Proportion by subtraction calculates: yeast 1 ~ 30%, milk-acid bacteria 1 ~ 10%, actinomycetes 1 ~ 15%, denitrifying bacterium 5 ~ 20%, nitrobacteria 5 ~ 20%, oxidation bacteria 1 ~ 15%, light and bacterium 5 ~ 20%, ammonia genus bacillus 10 ~ 30%, Ammonifying bacteria 1 ~ 15%, Pseudomonas 1 ~ 10%.
Described method, the aeration intensity described in described step (3) is that the oxygen in sewage is promoted to 1.5 ~ 3.5mg/L.
Described method, the aeration intensity described in described step (4) is that the oxygen in sewage is promoted to 1.5 ~ 3.5mg/L.
Described method, the aeration intensity described in described step (5) is that the oxygen in sewage is promoted to 1 ~ 2.5mg/
L。
Compared with prior art, the present invention has following obvious advantage:
1, the efficiency of organic sewage processing difficult degradation is high, and new bio-physical set is legal disposes of sewage in application, system
Can realize full automatic control, simple to operate, technology investment is less, and process waste water cost is lower, can by various toxic row organic matter removal, and processing efficiency is high, stable performance.In air supporting biological treating equipment, microorganism flco is taken to its upper side by microbubble, forms suspension slime layer in quite thick region.In suspension slime layer, there is the microorganism of very high density, have the microbubble be mingled with in a large number to provide oxygen in water, so there is a high efficiency Hao Yang microbial reaction district here.
2, can according to differences such as the kind of organic sewage, region, water and soil, carrying out establishing on the basis of technique adjustment, add this seminar through long-term practice, repetition test, the microorganism species filtered out from soil, not only strong adaptability, process put into practice short, processing power is large, and fermentation complete decomposition, the finished product obtained---bioactive water.In its product bioactive water, COD≤120mg/L, EC are 0.217ds/m, and pH value is 6.5 ~ 8.5, and total nitrogen is about 150mg/L, and total phosphorus is about 15mg/L, tawny liquid.Containing a large amount of inorganic states nutritive elements transformed by organism, can be absorbed by organism, and the procreation of biopathogen microorganism can be suppressed.Wherein in beneficial microbe colony, in the majority with light and bacterium, actinomycetes, milk-acid bacteria, yeast.
3, bioactive water is inherently containing the necessary organism of plant-growth and mineral substance, in addition, it also containing beneficial microbe colony, can improve and optimize the absorption of Plant To Nutrient and moisture, improve the ability of plant nature disease and insect resistance, thus make plant-growth healthy and strong.
4, bioactive water is applied to aquaculture, as the daily tap water of livestock and poultry, can clean pouity dwelling place simultaneously, at house internal spraying, with alternative Disinfectant management, consequently can alleviate the stench in animal barn and fecaluria, suppress the breeding of mosquitos and flies; And do not need to use microbiotic can be just that all kinds of probioticss in livestock and poultry intestines are complete, resistibility enhancing.
accompanying drawing explanation
Accompanying drawing 1 is equipment essentially consist schematic diagram of the present invention.
Accompanying drawing 2 is process flow sheet of the present invention.
In accompanying drawing 1,1 is air-float filtration pond, and 2 is adjustment pond, and 3 is fermentation decomposing pool, 4 is aeration tank, and 5 is product retention basin, and 6 is microorganism generating unit, 7 is glass fibre non-woven filter plate, and 8 is mud, and 9 is volcanics, 10 is microorganism species, 11 is porous barrier, and 12 is blower fan, and 13 is air duct, 14 is air-float filtration equipment, and 15 is aerator.
embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1: as shown in Figure 1, a kind of equipment for the treatment of sewage by biological-physical combination method, comprise air-float filtration pond 1, adjustment pond 2, fermentation decomposing pool 3, aeration and biological pond 4, product retention basin 5, above-mentioned each pond interconnects successively.
Air-float filtration pond 1 is provided with air-float filtration equipment 14, and there are mud 8 and microorganism species 10 in inside, and this distance 1 ~ 3m place, bottom, pond has porous barrier 11 to be connected with adjustment pond 2; Adjustment has a microorganism generating unit 6 in pond 2; Fermentation decomposing pool 3 is communicated with each other by porous barrier (11) and adjustment pond 2 and aeration tank 4; Glass fibre non-woven filter plate 7 is passed through by unpowered for the finished product feeding product retention basin 5 in aeration tank 4; Wherein mud 8, microorganism species 10, volcanics 9 and aerator 15 are distributed in adjustment 2, fermentation decomposing pool 3, aeration tank 4, product retention basin 5; Blower fan 12 is housed outside reaction tank), by air duct 13 is step, air is sent in above-mentioned each pond.
Embodiment 2
A kind of based on the legal sewage water treatment method of biology-physical set, comprise the following steps successively:
(1) organic sewage is entered air-float filtration pond 1, air-float filtration equipment 14 is scraped scum silica frost, discharges scum silica frost, is produced micro-gas
Bubble, wherein the amount of microorganism species 10 in sewage is 300 ~ 3000mg/L, and this process COD clearance is 5 ~ 20%.
By the sewage of preliminary treatment, enter adjustment pond (2) by the dividing plate 11 of porous.
(2) sewage in adjustment pond 2 will be flowed into, by the effect of the factors such as air duct 13, mud 8, blower fan 12 and aerator 15, oxygen in sewage is promoted to 1 ~ 2.5mg/L, it is 3000 ~ 8000mg/L that regulating and controlling microbial generation equipment produces the amount of microorganism in sewage, make COD under the condition of step (1) by this process, further removal 10 ~ 30%, wherein hydraulic detention time is 5 ~ 10 days.
(3) sewage of fermentation decomposing pool (3) will be flowed into by porous barrier 11, at volcanics (9), mud (8), aeration
Make the COD clearance of organic waste water reach 20 ~ 30% under the effect of equipment (15) and microorganism species (10), wherein the amount of microorganism in sewage is 3000 ~ 10000mg/L, and hydraulic detention time is 5 ~ 12 days.
(4) aeration tank (4), through sewage that porous barrier (11) flows into from step (3), biological respinse is carried out under the effect of volcanics (9), mud (8) and microorganism species (10), COD clearance is made to reach 20 ~ 30%, wherein the amount of microorganism in sewage is 3000 ~ 12000mg/L, and hydraulic detention time is 5 ~ 10 days.
(5) retention basin (5), through the process water that glass fibre non-woven filter plate (7) flows into from step (4), in micro-life
Under the effect of thing flora (10), mud (8), volcanics (9) and aerator (15), make dirt by decomposing further in aeration tank
COD≤the 120mg/L of water, wherein the amount of microorganism in sewage is 500 ~ 5000mg/L, and make the performance of the final water produced more stable, microorganism more still keeps, wherein hydraulic detention time is after 5 ~ 10 days, creates the finished product and bioactive water.Biological activity aqueous nature is as follows: COD≤120mg/L, EC are 0.217ds/m, and pH value is 6.5 ~ 8.5, and total nitrogen is about 150mg/L, and total phosphorus is about 15mg/L, tawny liquid.Bioactive water contains the beneficial microbe colony such as a large amount of light and bacterium, actinomycetes, milk-acid bacteria, yeast, and this flora comes from organic sphere, and vitality is strong, and the growth of the secondary metabolite confrontation organism that this flora activity produces has promoter action.
The described method of disposing of sewage, the pH value of the organic sewage described in step (1) is 5 ~ 10.5, range of reaction temperature is 4 ~ 35 DEG C, optimal reaction temperature is 16 ~ 30 DEG C, required air-float filtration equipment (14) can be selected according to the size of the amount of entering of disposing of sewage, and air-float filtration equipment hydraulic detention time is 30 ~ 60min.
The described method of disposing of sewage, the microorganism species that microorganism generation equipment (6) described in step (2) mainly produces is the strength by the mineral substance in organic sphere, vegetable mould and soil microorganisms, organic sewage is carried out intermittent aeration, through long-term practice, the domestication that soil microorganisms is carried out, primary election, multiple sieve, activate the superior microorganism flora obtained.
Wherein form in percentage terms at last, under yeast 1 ~ 30%, milk-acid bacteria 1 ~ 10%, actinomycetes 1 ~ 15%, denitrifying bacterium 5 ~ 20%, nitrobacteria 5 ~ 20%, oxidation bacteria 1 ~ 15%, light and bacterium 5 ~ 20%, ammonia genus bacillus 10 ~ 30%, Ammonifying bacteria 1 ~ 15%, Pseudomonas more than 1 ~ 10%. antimicrobial composition are prior art condition, select different antimicrobial composition according to different sewage, form and be suitable for the complex microorganism processing such sewage.
The described method of disposing of sewage, the aeration intensity described in step (3) is that the oxygen in sewage is promoted to 1.5 ~ 3.5mg/L.
The described method of disposing of sewage, the aeration intensity described in step (4) is that the oxygen in sewage is promoted to 1.5 ~ 3.5mg/L.
The described method of disposing of sewage, the aeration intensity described in step (5) be the oxygen in sewage is promoted to 1 ~
2.5mg/L, every 5 ~ 10 days according to return sludge ratio, the sludge reflux in product retention basin to adjusting pond (2) and air supporting filtering basin (1), to keep in adjustment pond mud and microorganism to the bearing capacity of organic sewage; In addition unnecessary sludge reflux to air-float filtration pond, discharged by the effect of air-float filtration equipment (14).
Above-mentioned return sludge ratio: calculate according to formula (1):
In formula: r is return sludge ratio, MLSS is retention basin mixing mouth solids concn (mg/L), and RSSS is sludge reflux
Concentration (mg/L).
Wherein mud bearing capacity: every kg mud, at energy every day treatments B OD5 kilogram of number, calculates by formula (2):
F is that (d), N is mixed solution sludge concentration (g/L) to kg (BOD5)/kg (active sludge) to sludge loading, and L1 is for entering
Water BOD (mg/L), L2 are water outlet BOD (mg/L), Q be sewage quantity (m/h), V is reaction tank useful volume (m).
Embodiment 3
For certain Development of Agriculture and Animal Husbandry company limited of city one, Main Management casing processing heparin sodium production line, and live pig
Cultivation.At present, in the casing course of processing, wastewater displacement reaches 10 ~ 15m/d, measure by analysis, COD >=1500mg/L, BOD5 in waste water >=900mg/L, SS >=400mg/L, NH3-N >=80mg/L, vegetable and animals oils >=20mg/L, pH is 8 ~ 10, and the many indexs such as Organic substance in water content and NH3-N are all considerably beyond state sewage emission standard (GB8978-1996) grade III Standard.
By the enforcement of this equipment and process, in factory, casing processing waste water and Pig dung and urine process realize innoxious; Stench basically eliminate in plant area and ambient air thereof, secondary standard that Air quality reaches " ambient air quality "; Soil caused by waste water fecaluria and body of groundwater pollute is contained at all; Institute's the finished product that define and bioactive water after harmless treatment, its character is as follows: BOD5 is at below 60mg/L, COD at below 120mg/L, and quantity of useful microbe reaches 30000/more than ml, and result as shown in the figure.And to be carried out disinfection deodorizing test in casing job shop and pig house by applying biological active water, pig-keeping experiment is carried out by spice or drinking-water, on Vegetable produce, carry out root outer spraying and soil water filling test simultaneously, result shows, bioactive water can improve livestock and poultry and farm crop immunizing power, strengthen disease resistance, improve agricultural and animal products yield and quality.Finally reach that on-site external environment is harmless, odorless, the object of waste reusable edible.
Embodiment 4 is for certain slaughterhouse of city one, butcher the waste component more complicated of generation, wherein containing a large amount of blood stains, grease, feather, meat bits, internal organ foreign material, indigested ight soil etc., water is sorrel and has obvious bad smell, pollution is to a certain degree caused to environment, according to its effluent monitoring result: COD >=1300mg/L, BOD5 >=600mg/L, SS >=800mg/L, PH:6.0 ~ 9.0.By implementing this equipment and process, namely the effluent quality purification of slaughterhouse's sewage is: COD≤80mg/L, BOD5≤30 ~ 25mg/L, SS≤60mg/L, PH:6.0 ~ 8.5, reaches " meat-packing industry water pollutions discharge mark
Accurate " primary standard in (GB13457-92).
Certainly, the embodiment of the above, just better embodiment of the present invention, and unrestricted the scope of the present invention, therefore all equivalences done according to technique, treatment process and the principle described in the present patent application the scope of the claims change or modify, and are included in the present patent application the scope of the claims.
Claims (7)
1., based on the legal sewage water treatment method of biology-physical set, it is characterized in that, comprise the following steps successively:
(1) organic sewage is entered air-float filtration pond, air-float filtration equipment is scraped scum silica frost, discharges scum silica frost, is produced microbubble, Qi Zhongwei
The amount of biological flora in sewage is 300 ~ 3000mg/L, and this process COD clearance is 5 ~ 20%; By the sewage of preliminary treatment, enter adjustment pond by the dividing plate (11) of porous;
(2) by flowing into the sewage in adjustment pond, the oxygen in sewage is promoted to 1 ~ 2.5mg/L, regulating and controlling microbial generation equipment produces
The raw amount of microorganism species in sewage is 3000 ~ 8000mg/L, and make COD under the condition of step (1) by this process, remove 10 ~ 30% further, wherein hydraulic detention time is 5 ~ 10 days;
(3) flowed into the sewage of fermentation decomposing pool by porous barrier, make the COD of organic waste water remove 20 ~ 30% further, wherein the amount of microorganism in sewage is 3000 ~ 10000mg/L, and hydraulic detention time is 5 ~ 12 days;
(4) from step (3), flow into the sewage of aeration tank through porous barrier, make COD remove 20 ~ 30% further, wherein
The amount of microorganism in sewage is 3000 ~ 12000mg/L, and hydraulic detention time is 5 ~ 10 days;
(5) from step (4), the process water of product retention basin is flowed into through glass fibre non-woven filter plate, in microorganism species, dirt
Under the effect of mud, volcanics and aerator, decompose further in aeration tank, make the COD≤120mg/L of sewage, wherein the amount of microorganism species in sewage is 500 ~ 5000mg/L, wherein hydraulic detention time is after 5 ~ 10 days, creates the finished product and bioactive water.
2. one according to claim 1 is based on the legal sewage water treatment method of biology-physical set, it is characterized in that, in described step (5), every 5 ~ 10 days according to return sludge ratio, the sludge reflux in product retention basin to adjustment pond and air supporting filtering basin, above-mentioned return sludge ratio: calculate according to formula (1):
In formula: r is return sludge ratio, MLSS is retention basin mixing mouth solids concn, and unit is mg/L, RSSS is sludge reflux concentration, and unit is mg/L.
3. one according to claim 1 is based on the legal sewage water treatment method of biology-physical set, it is characterized in that, the pH value of the organic sewage described in described step (1) is 5 ~ 10.5, and temperature of reaction is 16 ~ 30 DEG C; Hydraulic detention time is 30 ~ 60min.
4. one according to claim 1 is based on the legal sewage water treatment method of biology-physical set, it is characterized in that, the microorganism species composition that microorganism generation equipment described in described step (2) produces in percentage terms at last: yeast 1 ~ 30%, milk-acid bacteria 1 ~ 10%, actinomycetes 1 ~ 15%, denitrifying bacterium 5 ~ 20%, nitrobacteria 5 ~ 20%, oxidation bacteria 1 ~ 15%, light and bacterium 5 ~ 20%, ammonia genus bacillus 10 ~ 30%, Ammonifying bacteria 1 ~ 15%, Pseudomonas 1 ~ 10%.
5. one according to claim 1 is based on the legal sewage water treatment method of biology-physical set, it is characterized in that, the aeration intensity in described step (3) is that the oxygen in sewage is promoted to 1.5 ~ 3.5mg/L.
6. one according to claim 1 is based on the legal sewage water treatment method of biology-physical set, it is characterized in that, the aeration intensity in described step (4) is that the oxygen in sewage is promoted to 1.5 ~ 3.5mg/L.
7. one according to claim 1 is based on the legal sewage water treatment method of biology-physical set, it is characterized in that, the aeration intensity in described step (5) is that the oxygen in sewage is promoted to 1 ~ 2.5mg/L.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746104A (en) * | 2017-09-30 | 2018-03-02 | 延边大学 | A kind of bioactive water and preparation method thereof |
| CN109111066A (en) * | 2018-10-11 | 2019-01-01 | 泉州师范学院 | A kind of method of bioelectrochemistry removal pig manure stink |
-
2014
- 2014-05-04 CN CN201410180447.1A patent/CN105084635A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746104A (en) * | 2017-09-30 | 2018-03-02 | 延边大学 | A kind of bioactive water and preparation method thereof |
| CN107746104B (en) * | 2017-09-30 | 2021-10-22 | 延边大学 | Bioactive water and preparation method thereof |
| CN109111066A (en) * | 2018-10-11 | 2019-01-01 | 泉州师范学院 | A kind of method of bioelectrochemistry removal pig manure stink |
| CN109111066B (en) * | 2018-10-11 | 2021-05-04 | 泉州师范学院 | Method for removing pig manure odor through bioelectrochemistry |
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