CN113860668A - Culture manure purification method - Google Patents
Culture manure purification method Download PDFInfo
- Publication number
- CN113860668A CN113860668A CN202111322746.0A CN202111322746A CN113860668A CN 113860668 A CN113860668 A CN 113860668A CN 202111322746 A CN202111322746 A CN 202111322746A CN 113860668 A CN113860668 A CN 113860668A
- Authority
- CN
- China
- Prior art keywords
- biogas slurry
- adsorption
- adsorption resin
- anaerobic
- concentrated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 210000003608 fece Anatomy 0.000 title claims abstract description 18
- 239000010871 livestock manure Substances 0.000 title claims abstract description 17
- 238000000746 purification Methods 0.000 title description 10
- 239000002002 slurry Substances 0.000 claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 8
- 238000001179 sorption measurement Methods 0.000 claims description 47
- 239000011347 resin Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 30
- 238000005273 aeration Methods 0.000 claims description 19
- 244000005700 microbiome Species 0.000 claims description 11
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 239000011574 phosphorus Substances 0.000 claims description 9
- 239000006041 probiotic Substances 0.000 claims description 9
- 235000018291 probiotics Nutrition 0.000 claims description 9
- 238000010828 elution Methods 0.000 claims description 8
- 239000003337 fertilizer Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 150000001413 amino acids Chemical class 0.000 claims description 6
- 239000003480 eluent Substances 0.000 claims description 6
- 239000004021 humic acid Substances 0.000 claims description 6
- 230000000529 probiotic effect Effects 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 5
- 238000009395 breeding Methods 0.000 claims description 5
- 230000001488 breeding effect Effects 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 229910052785 arsenic Inorganic materials 0.000 claims description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000001902 propagating effect Effects 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 239000012528 membrane Substances 0.000 description 6
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000005556 hormone Substances 0.000 description 3
- 229940088597 hormone Drugs 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 235000013405 beer Nutrition 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 239000010806 kitchen waste Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- YGCFIWIQZPHFLU-UHFFFAOYSA-N acesulfame Chemical compound CC1=CC(=O)NS(=O)(=O)O1 YGCFIWIQZPHFLU-UHFFFAOYSA-N 0.000 description 1
- 229960005164 acesulfame Drugs 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- KBPHJBAIARWVSC-RGZFRNHPSA-N lutein Chemical compound C([C@H](O)CC=1C)C(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\[C@H]1C(C)=C[C@H](O)CC1(C)C KBPHJBAIARWVSC-RGZFRNHPSA-N 0.000 description 1
- 229960005375 lutein Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- KBPHJBAIARWVSC-XQIHNALSSA-N trans-lutein Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CC(O)CC1(C)C)C=CC=C(/C)C=CC2C(=CC(O)CC2(C)C)C KBPHJBAIARWVSC-XQIHNALSSA-N 0.000 description 1
- FJHBOVDFOQMZRV-XQIHNALSSA-N xanthophyll Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CC(O)CC1(C)C)C=CC=C(/C)C=CC2C=C(C)C(O)CC2(C)C FJHBOVDFOQMZRV-XQIHNALSSA-N 0.000 description 1
- 235000008210 xanthophylls Nutrition 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
-
- 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
- C02F2101/103—Arsenic 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
- C02F2101/105—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
- C02F2101/12—Halogens or halogen-containing 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- 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
-
- 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
- C02F3/30—Aerobic and anaerobic processes
Abstract
The invention discloses a method for purifying culture manure. According to the invention, by adopting the combined technologies of high-energy oxygen microbubble, reverse osmosis filtration, coordination chemical target capture and the like, low-cost treatment of biogas slurry is realized, 3 times of concentrated biogas slurry is obtained, 2/3 clear water is obtained, the water quality of the absorbed clear water reaches the ground surface V-type water standard, all harmful components in the concentrated biogas slurry are completely eliminated, the concentrated biogas slurry can be planted and planted integrally, and full resource utilization is realized.
Description
Technical Field
The invention relates to the technical field of biogas slurry treatment, in particular to a method for purifying breeding manure.
Background
In the face of more and more organic wastes, treatment modes are various, wherein the treatment mode is more common that the anaerobic digestion technology is utilized to treat perishable organic wastes such as breeding excrement, urban excrement, kitchen waste, sewage and sludge, the main aim is to produce methane, and methane slag is used for producing organic fertilizers, but in the face of methane liquid, most manufacturers are under the condition of being stranded, so that the treatment cost of the methane liquid is ultrahigh, and projects cannot be borne, therefore, when some people do projects in economically developed areas, the methane liquid is selected as garbage percolate to be sent out for treatment, and in rural treatment, the methane liquid after the excrement is subjected to anaerobic digestion is mostly untreated and directly discharged, so that the secondary environment is seriously polluted.
The latest national policy proposes a concept of planting and breeding integration, but the components such as excrement, kitchen waste and the like contain harmful components, so that the popularization and the application are difficult.
The biogas slurry is an important carrier of water-soluble components of organic matters which are thoroughly decomposed and fermented, is rich in effective nutrient components such as more than twenty kinds of amino acids, more than ten kinds of humic acids, xanthophyll, saccharides, ammonia nitrogen, phosphorus, potassium and the like, and is relatively low in concentration and difficult to obtain. Moreover, the biogas slurry also contains a small amount of harmful components, such as medicines, fertilizers, hormones, salts and other harmful components, and even more, some pig raising areas also use the As-containing medicines of the acesulfame acid type, and finally the medicines are discharged along with feces to form harmful pollution components of the biogas slurry.
How to eliminate harmful ingredients in biogas slurry by using an effective means, filter most of water and realize the concentration of effective organic nutrients is a great problem before people, because the use cost of the effective means cannot be too high, otherwise, operators cannot afford the effective means.
Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a method for purifying breeding manure to solve the problems mentioned in the background technology.
The technical scheme of the invention is as follows: provides a method for purifying culture manure, which comprises the following steps.
S1: and (3) carrying out oxidation aeration on the biogas slurry in the aerobic aeration tank by using a high-energy oxygen microbubble generator, and aerating for 2-10 hours to obtain the primarily aerated biogas slurry. The principle of the method is that any fertilizer, pesticide, antibiotic and hormone components are unstable organic matters or microorganisms, and under the forced oxidation of a large amount of active oxygen free radicals generated after high-energy oxygen microbubbles are input into water, the components are rapidly oxidized and decomposed until the components are completely eliminated.
S2: and adsorbing the biogas slurry subjected to the primary aeration by using first adsorption resin, wherein the first adsorption resin is used for adsorbing amino acid and humic acid, and the adsorption time is 2-20 minutes, so as to obtain the desalinated biogas slurry. It is preferred. The biogas slurry after the primary aeration is adsorbed by adopting first adsorption resin into two-stage adsorption. Discharging the primarily aerated biogas slurry after twice circulation, converting the color of the desalted biogas slurry from high-concentration black yellow brown into beer color, and detecting that the COD is reduced to 400mg/L and the adsorption amount of humic acid and amino acid in each ton of biogas slurry is about 3 kg.
S3: and (3) allowing the desalted biogas slurry to flow into an anaerobic tank, and carrying out anaerobic treatment under the action of anaerobic microorganisms for 6-120h to obtain anaerobic biogas slurry. Anaerobic microorganisms are put in the anaerobic tank for anaerobic fermentation.
S4: and (3) inputting the anaerobic biogas slurry into an aerobic aeration tank, and carrying out oxidation aeration on the anaerobic biogas slurry by adopting a high-energy oxygen microbubble generator for 6-120h to obtain secondary aerated biogas slurry. Aerobic microorganisms are put in the aerobic aeration tank, and the ammonia nitrogen components are oxidized and degraded by the action of the aerobic microorganisms while the high-energy oxygen microbubbles are aerated and oxidized forcibly, so that the ammonia nitrogen concentration of the anaerobic biogas slurry is reduced to 320mg/L from 1500mg/L, and the pollution load is reduced to the minimum degree.
S5: and (4) inputting the aerated biogas slurry into a sedimentation tank, and standing for 1-10h to obtain the settled biogas slurry.
S6: performing reverse osmosis filtration on the biogas slurry after standing; clear water and concentrated biogas slurry are separated, and the concentrated biogas slurry is input into a biogas slurry tank. And (2) filtering and concentrating the biogas slurry after standing by adopting a reverse osmosis membrane, wherein the reverse osmosis membrane adopts a fixed value filtering mode, 67-70% of water can pass through the filtering membrane to become clear water, COD (chemical oxygen demand) is lower than 30mg/L, the concentrations of ammonia nitrogen, total phosphorus and potassium ions in the clear water are unchanged, and the rest biogas slurry after standing becomes concentrated biogas slurry and flows into a biogas tank.
S7: and the clean water is adsorbed by adopting a second adsorption resin, the second adsorption resin directionally adsorbs compounds containing ammonia, nitrogen, phosphorus, potassium, sodium and chlorine, after adsorption is finished, adsorbed clean water is obtained, and the adsorbed clean water is discharged into a water collecting tank. The adsorption of the clean water by the second adsorption resin in the step S7 is also two-stage adsorption. The quality of the adsorbed clean water is guaranteed, and the standard of surface V-type water is met.
In step S2, after the first adsorption resin reaches a saturated state, the first adsorption resin is eluted with a 5 wt% potassium hydroxide solution to obtain a first eluent, and the first eluent is input into the concentrated biogas slurry.
In step S7, after the second adsorption resin is saturated, the second adsorption resin is eluted with oxalic acid or acetic acid solution with a concentration of 5 wt% to obtain a second elution solution, and the second elution solution is input into the concentrated biogas slurry.
The culture manure purification method also comprises the following steps: step S8: adding 1 wt% of probiotic dry powder into concentrated biogas slurry in a biogas slurry tank, uniformly stirring, standing, reactivating and propagating probiotics after 10-48 hours, feeding the concentrated biogas slurry obtained by probiotic culture into a storage system for storage and curing, and forming a liquid fertilizer after 4-10 months.
Indexes of the adsorbed clean water are as follows: COD is less than 26 mg/L; the ammonia nitrogen is less than 3mg/L, the total phosphorus is less than 0.5mg/L, the arsenic element is less than 0.5mg/L, and the salt is less than 0.5 mg/L.
By adopting the scheme, the invention provides the method for purifying the culture manure, no sewage purification chemical agent is used in the whole treatment process, the water treatment cost is greatly reduced, the purification of each ton of biogas slurry comprises the subsequent organic acid and the potassium hydroxide for elution, the cost is far lower than the treatment cost of pure purification of any biogas slurry at present, and the concentrated biogas slurry obtained after the operation is a valuable product and achieves primary high-value utilization.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1, the present invention provides a method for purifying cultivation manure, which comprises the following steps.
S1: and (3) carrying out oxidation aeration on the biogas slurry in the aerobic aeration tank by using a high-energy oxygen microbubble generator, and aerating for 2-10 hours to obtain the primarily aerated biogas slurry. The principle of the method is that any fertilizer, pesticide, antibiotic and hormone components are unstable organic matters or microorganisms, and under the forced oxidation of a large amount of active oxygen free radicals generated after high-energy oxygen microbubbles are input into water, the components are rapidly oxidized and decomposed until the components are completely eliminated.
S2: and adsorbing the biogas slurry subjected to the primary aeration by using first adsorption resin, wherein the first adsorption resin is used for adsorbing amino acid and humic acid, and the adsorption time is 2-20 minutes, so as to obtain the desalinated biogas slurry. It is preferred. The biogas slurry after the primary aeration is adsorbed by adopting first adsorption resin into two-stage adsorption. Discharging the primarily aerated biogas slurry after twice circulation, converting the color of the desalted biogas slurry from high-concentration black yellow brown into beer color, and detecting that the COD is reduced to 400mg/L and the adsorption amount of humic acid and amino acid in each ton of biogas slurry is about 3 kg.
S3: and (3) allowing the desalted biogas slurry to flow into an anaerobic tank, and carrying out anaerobic treatment under the action of anaerobic microorganisms for 6-120h to obtain anaerobic biogas slurry. Anaerobic microorganisms are put in the anaerobic tank for anaerobic fermentation.
S4: and (3) inputting the anaerobic biogas slurry into an aerobic aeration tank, and carrying out oxidation aeration on the anaerobic biogas slurry by adopting a high-energy oxygen microbubble generator for 6-120h to obtain secondary aerated biogas slurry. Aerobic microorganisms are put in the aerobic aeration tank, and the ammonia nitrogen components are oxidized and degraded by the action of the aerobic microorganisms while the high-energy oxygen microbubbles are aerated and oxidized forcibly, so that the ammonia nitrogen concentration of the anaerobic biogas slurry is reduced to 320mg/L from 1500mg/L, and the pollution load is reduced to the minimum degree.
S5: and (4) inputting the aerated biogas slurry into a sedimentation tank, and standing for 1-10h to obtain the settled biogas slurry.
S6: performing reverse osmosis filtration on the biogas slurry after standing; clear water and concentrated biogas slurry are separated, and the concentrated biogas slurry is input into a biogas slurry tank. And (2) filtering and concentrating the biogas slurry after standing by adopting a reverse osmosis membrane, wherein the reverse osmosis membrane adopts a fixed value filtering mode, 67-70% of water can pass through the filtering membrane to become clear water, COD (chemical oxygen demand) is lower than 30mg/L, the concentrations of ammonia nitrogen, total phosphorus and potassium ions in the clear water are unchanged, and the rest biogas slurry after standing becomes concentrated biogas slurry and flows into a biogas tank.
S7: and the clean water is adsorbed by adopting a second adsorption resin, the second adsorption resin directionally adsorbs compounds containing ammonia, nitrogen, phosphorus, potassium, sodium and chlorine, after adsorption is finished, adsorbed clean water is obtained, and the adsorbed clean water is discharged into a water collecting tank. The adsorption of the clean water by the second adsorption resin in the step S7 is also two-stage adsorption. The quality of the adsorbed clean water is guaranteed, and the standard of surface V-type water is met.
In step S2, after the first adsorption resin reaches a saturated state, the first adsorption resin is eluted with a 5 wt% potassium hydroxide solution to obtain a first eluent, and the first eluent is input into the concentrated biogas slurry. In step S7, after the second adsorption resin is saturated, the second adsorption resin is eluted with oxalic acid or acetic acid solution with a concentration of 5 wt% to obtain a second elution solution, and the second elution solution is input into the concentrated biogas slurry.
The culture manure purification method also comprises the following steps: step S8: adding 1 wt% of probiotic dry powder into concentrated biogas slurry in a biogas slurry tank, uniformly stirring, standing, reactivating and propagating probiotics after 10-48 hours, feeding the concentrated biogas slurry obtained by probiotic culture into a storage system for storage and curing, and forming a liquid fertilizer after 4-10 months.
Indexes of the adsorbed clean water are as follows: COD is less than 26 mg/L; the ammonia nitrogen is less than 3mg/L, the total phosphorus is less than 0.5mg/L, the arsenic element is less than 0.5mg/L, and the salt is less than 0.5 mg/L.
In conclusion, the invention provides a method for purifying culture manure, no sewage purification chemical agent is used in the whole treatment process, the water treatment cost is greatly reduced, the purification of each ton of biogas slurry including organic acid and potassium hydroxide for subsequent elution is realized, the cost is far lower than the treatment cost of pure purification of any biogas slurry at present, and the concentrated biogas slurry obtained after the operation is a valuable product, and the preliminary high-value utilization is achieved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A method for purifying breeding manure is characterized by comprising the following steps:
s1: oxidizing and aerating the biogas slurry in the aerobic aeration tank for 2-10 hours by using a high-energy oxygen microbubble generator to obtain primarily aerated biogas slurry;
s2: adsorbing the biogas slurry subjected to primary aeration by using first adsorption resin, wherein the first adsorption resin is used for adsorbing amino acid and humic acid, and the adsorption time is 2-20 minutes, so as to obtain desalted biogas slurry;
s3: the desalinated biogas slurry flows into an anaerobic tank, anaerobic treatment is carried out under the action of anaerobic microorganisms for 6-120h, and anaerobic biogas slurry is obtained;
s4: inputting the anaerobic biogas slurry into an aerobic aeration tank, and carrying out oxidation aeration on the anaerobic biogas slurry by adopting a high-energy oxygen microbubble generator for 6-120h to obtain secondary aerated biogas slurry;
s5: inputting the aerated biogas slurry into a sedimentation tank, and standing for 1-10h to obtain the standing biogas slurry;
s6: performing reverse osmosis filtration on the biogas slurry after standing; separating out clear water and concentrated biogas slurry; inputting the concentrated biogas slurry into a biogas slurry tank;
s7: and the clean water is adsorbed by adopting a second adsorption resin, the second adsorption resin directionally adsorbs compounds containing ammonia, nitrogen, phosphorus, potassium, sodium and chlorine, after adsorption is finished, adsorbed clean water is obtained, and the adsorbed clean water is discharged into a water collecting tank.
2. The method for purifying cultivation manure as claimed in claim 1, wherein in step S2, the biogas slurry after the primary aeration is adsorbed by a first adsorption resin in two stages; the adsorption of the clean water by the second adsorption resin in the step S7 is also two-stage adsorption.
3. The method for purifying cultivation manure as claimed in claim 1 or 2, wherein in step S2, after the first adsorption resin reaches a saturated state, the first adsorption resin is eluted with 5 wt% potassium hydroxide solution to obtain a first eluent, and the first eluent is inputted into the concentrated biogas slurry.
4. The method for purifying cultivation manure as claimed in claim 1 or 2, wherein in step S7, after the second adsorption resin is saturated, the second adsorption resin is eluted with oxalic acid or acetic acid solution with concentration of 5 wt% to obtain a second elution solution, and the second elution solution is inputted into the concentrated biogas slurry.
5. The method for purifying cultivation manure according to claim 1, further comprising: step S8: adding 1 wt% of probiotic dry powder into concentrated biogas slurry in a biogas slurry tank, uniformly stirring, standing, reactivating and propagating probiotics after 10-48 hours, feeding the concentrated biogas slurry obtained by probiotic culture into a storage system for storage and curing, and forming a liquid fertilizer after 4-10 months.
6. The method for purifying the culture manure according to claim 1, wherein the indexes of the clean water after adsorption are as follows: COD is less than 26 mg/L; the ammonia nitrogen is less than 3mg/L, the total phosphorus is less than 0.5mg/L, the arsenic element is less than 0.5mg/L, and the salt is less than 0.5 mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111322746.0A CN113860668A (en) | 2021-11-09 | 2021-11-09 | Culture manure purification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111322746.0A CN113860668A (en) | 2021-11-09 | 2021-11-09 | Culture manure purification method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113860668A true CN113860668A (en) | 2021-12-31 |
Family
ID=78987570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111322746.0A Pending CN113860668A (en) | 2021-11-09 | 2021-11-09 | Culture manure purification method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113860668A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002362990A (en) * | 2001-06-07 | 2002-12-18 | Fujita Corp | Method of manufacturing liquid fertilizer and apparatus for the same |
| JP2006212617A (en) * | 2005-02-04 | 2006-08-17 | Hiroyuki Yoshida | Separation and recovery method of phosphoric acid, organic acid, and amino acid, and treatment method of organic materials |
| CN103172244A (en) * | 2013-03-26 | 2013-06-26 | 广州培根裕农生物科技有限公司 | Recycling treatment method of water-submerged manure in breeding industry |
| WO2015006882A1 (en) * | 2013-07-17 | 2015-01-22 | 北京化工大学 | Method for implementing zero emission biogas slurry in pure straw anaerobic digestion |
| CN105836984A (en) * | 2016-06-20 | 2016-08-10 | 山东民和生物科技股份有限公司 | Multi-stage circulation utilization system and method of culture excrement |
| CN108358389A (en) * | 2018-03-09 | 2018-08-03 | 南通华多种猪繁育有限公司 | A kind of harmless processing of large-scale pig farm biogas slurry and utilization of resources technique |
| CN109354301A (en) * | 2018-10-19 | 2019-02-19 | 杨霆 | A kind of cultivation excrement treatment device and method |
| CN111333444A (en) * | 2020-04-08 | 2020-06-26 | 深圳市海吉星环保农业科技有限公司 | Efficient treatment method for anaerobic fermentation substrate of fruit and vegetable waste |
| CN111689641A (en) * | 2019-03-13 | 2020-09-22 | 姜林 | Full-quantitative treatment method for landfill leachate |
-
2021
- 2021-11-09 CN CN202111322746.0A patent/CN113860668A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002362990A (en) * | 2001-06-07 | 2002-12-18 | Fujita Corp | Method of manufacturing liquid fertilizer and apparatus for the same |
| JP2006212617A (en) * | 2005-02-04 | 2006-08-17 | Hiroyuki Yoshida | Separation and recovery method of phosphoric acid, organic acid, and amino acid, and treatment method of organic materials |
| CN103172244A (en) * | 2013-03-26 | 2013-06-26 | 广州培根裕农生物科技有限公司 | Recycling treatment method of water-submerged manure in breeding industry |
| WO2015006882A1 (en) * | 2013-07-17 | 2015-01-22 | 北京化工大学 | Method for implementing zero emission biogas slurry in pure straw anaerobic digestion |
| CN105836984A (en) * | 2016-06-20 | 2016-08-10 | 山东民和生物科技股份有限公司 | Multi-stage circulation utilization system and method of culture excrement |
| CN108358389A (en) * | 2018-03-09 | 2018-08-03 | 南通华多种猪繁育有限公司 | A kind of harmless processing of large-scale pig farm biogas slurry and utilization of resources technique |
| CN109354301A (en) * | 2018-10-19 | 2019-02-19 | 杨霆 | A kind of cultivation excrement treatment device and method |
| CN111689641A (en) * | 2019-03-13 | 2020-09-22 | 姜林 | Full-quantitative treatment method for landfill leachate |
| CN111333444A (en) * | 2020-04-08 | 2020-06-26 | 深圳市海吉星环保农业科技有限公司 | Efficient treatment method for anaerobic fermentation substrate of fruit and vegetable waste |
Non-Patent Citations (1)
| Title |
|---|
| 詹益兴: "合理用肥手册" * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110801811B (en) | Mg/Fe oxide modified biochar nanocomposite and preparation method thereof | |
| CN105585220B (en) | A kind of urban sewage treatment system and purification method | |
| CN104230097B (en) | A kind of method of aquaculture sewage disposal | |
| CN102190371B (en) | Breeding method for anaerobic ammonium oxidation granular sludge | |
| CN103803711A (en) | Method for treating ammonia-nitrogen wastewater by using immobilized microorganism | |
| CN101148302A (en) | Method for treating waste water of livestock and fowl cultivation | |
| CN103910463A (en) | Novel process for BC urban sewage treatment | |
| CN105417687A (en) | Method and device for performing combined treatment on sewage and bottom mud in black-odor riverway | |
| CN101708923A (en) | Denitrifying phosphorus and nitrogen removal method for wastewater with low carbon-phosphorus ratio | |
| CN113371941A (en) | Application of microbial carbon-loaded metal ammonia nitrogen oxidation ozone catalyst in degradation of high-concentration ammonia nitrogen wastewater | |
| CN104445642A (en) | Urban sewage treatment composite material as well as preparation method and application thereof | |
| CN101701197B (en) | Novel microorganism flora mixture and mixed nutrient medium thereof | |
| CN101659502A (en) | Method for treating waste leachate by utilizing high denitrification shared type Orbal oxidation ditch | |
| CN101492225A (en) | Method for treating wastewater of starch factory with complex enzyme/activated sludge process | |
| CN110156270A (en) | Source-separated urine recovery of nitrogen and phosphorus and water reclaiming system and its operation method | |
| CN101050020A (en) | Method for treating wastewater by technique of sludge decrement type biomembrane piled ball packing | |
| CN105152478A (en) | Treatment method of industrial wastewater produced during preparation of sodium glutamate through concentration isoelectric process | |
| CN104843870A (en) | Magnetic carrier immobilized microorganism live bacteria preparation and preparation method and application thereof | |
| CN115159767B (en) | Treatment process and device for garlic mixed food processing wastewater | |
| CN108911161B (en) | Water quality regulator for aquaculture and preparation method thereof | |
| CN113698039B (en) | Urine harmless treatment method and system and intelligent toilet based on urine harmless treatment method and system | |
| CN107399891B (en) | Livestock and poultry manure recycling process and method | |
| CN109320029A (en) | Liquor production wastewater processing method and system | |
| CN113860668A (en) | Culture manure purification method | |
| CN212713145U (en) | Resourceful treatment system of breeding waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211231 |