CN110156261A - A kind of purification process of dispersant type domestic wastewater purification system - Google Patents
A kind of purification process of dispersant type domestic wastewater purification system Download PDFInfo
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- CN110156261A CN110156261A CN201910446112.2A CN201910446112A CN110156261A CN 110156261 A CN110156261 A CN 110156261A CN 201910446112 A CN201910446112 A CN 201910446112A CN 110156261 A CN110156261 A CN 110156261A
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- 238000000746 purification Methods 0.000 title claims abstract description 63
- 239000002270 dispersing agent Substances 0.000 title claims abstract description 19
- 239000010840 domestic wastewater Substances 0.000 title claims abstract description 19
- 239000010802 sludge Substances 0.000 claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000010865 sewage Substances 0.000 claims abstract description 33
- 230000008021 deposition Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000010992 reflux Methods 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 8
- 208000032843 Hemorrhage Diseases 0.000 claims abstract description 6
- 238000013019 agitation Methods 0.000 claims abstract description 6
- 208000034158 bleeding Diseases 0.000 claims abstract description 6
- 230000000740 bleeding effect Effects 0.000 claims abstract description 6
- 235000016709 nutrition Nutrition 0.000 claims description 55
- 239000003795 chemical substances by application Substances 0.000 claims description 52
- 238000003756 stirring Methods 0.000 claims description 26
- 239000006228 supernatant Substances 0.000 claims description 22
- 239000002351 wastewater Substances 0.000 claims description 19
- 239000008399 tap water Substances 0.000 claims description 16
- 235000020679 tap water Nutrition 0.000 claims description 16
- 239000004033 plastic Substances 0.000 claims description 15
- 229920003023 plastic Polymers 0.000 claims description 15
- 238000011081 inoculation Methods 0.000 claims description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 13
- 241000894006 Bacteria Species 0.000 claims description 11
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 10
- 229920001661 Chitosan Polymers 0.000 claims description 9
- -1 compound amino acid Chemical class 0.000 claims description 9
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical group [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 7
- 238000005273 aeration Methods 0.000 claims description 6
- 241000108664 Nitrobacteria Species 0.000 claims description 5
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 claims description 5
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 5
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 238000006396 nitration reaction Methods 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 230000035764 nutrition Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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
- C02F1/001—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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F2101/30—Organic compounds
-
- 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
- C02F3/302—Nitrification and denitrification treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of purification processes of dispersant type domestic wastewater purification system, including pre-process, agitation phases of intaking, fill phase, denitrification stage, nitrification stage, static state deposition stage, refluxing stage, bleeding stage；The preparation method of the biologic packing material carrier containing activated sludge is also disclosed simultaneously, and present invention purification sewage effect is good, and water outlet reaches " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) level-one B mark, and practicability is high.
Description
Technical field
The present invention relates to field of waste water treatment, especially a kind of purification process of dispersant type domestic wastewater purification system.
Background technique
Present waste water main source production waste water, sanitary sewage etc., wherein production waste water mainly include cleaning waste water and
Recirculated cooling water.The organic matter being present in sanitary sewage is extremely unstable, is easy corruption and generates stench.Bacterium and pathogen with
Life is nutrition and mass propagation without Organic substance in water, can lead to infectious disease from spreading.Therefore, how sanitary sewage is purified
It handles extremely urgent.
HUSB tank referred to herein is the tank body for launching active sludge, according in biological denitrification process to aerobic-anoxic
The control of environment, HUSB tank are hydrolization and acidification tank.
Summary of the invention
To solve the above problems, the invention discloses a kind of purification works of dispersant type domestic wastewater purification system
Skill, comprising the following steps:
S0: pretreatment: sanitary sewage is entered in HUSB tank by lattice canopy well primary filtration, launching in HUSB tank has work
Property sludge, activated sludge concentration reach 3000~5000mg/L, obtain primary wastewater；
S1: water inlet agitation phases: carrying out 1~3h of anaerobism stirring so that water quality is uniform to primary wastewater in HUSB tank is
Subsequent handling, which provides, stablizes carbon source；
S2: fill phase: by air lift pump up water component first will in HUSB tank by volume fraction calculate be 20~50% primary
Waste water is introduced in purification pot, and the anaerobic environment in purification pot is controlled, and DO concentration is 0.1~0.5mg/L, is pumped up water component by air lift
It provides and stablizes carbon source；
S3: the denitrification stage: anaerobism stirs 2~4h, denitrifying bacterium anaerobic condition denitrogenation in activated sludge；
S4: the nitrification stage: aeration stirring 2-4h, controlling DO concentration in purification pot is 2~4mg/L, is nitrified in activated sludge
Bacterium degradation of organic substances carries out nitration reaction；
S5: the static state deposition stage: stopping anaerobism stirring, static state deposition 3-6h, and mud-water separation obtains primary purifying water and phosphorous
Excess sludge；
S6: the primary purifying water in purification pot: being calculated reflux 20-30% into HUSB tank by refluxing stage by volume, and
The phosphorous excess sludge of 5-10% in purification pot by mass is discharged into sludge-tank；
S7: the component discharge following supernatant liquor of liquid level bleeding stage: is pumped up water into clear water reserviors by air lift.
Preferably, the activated sludge in the step S0, which also follows the steps below, is cultivated:
A: activated sludge is collected；
B: activated sludge acclimatization；
C: activated sludge inoculation.
Preferably, 2-3 is added the following steps are included: take the activated sludge of 3~4g/L of concentration by sewage plant in the step A
The tap water of times volume stands 1-2h after stirring 0.5-1h, then exhausts the water of 2-3 times of volume, so repeats 3-5 times.
Preferably, the step B will be the following steps are included: will be dilute by the resulting activated sludge tap water of processing of step A
Releasing to sludge concentration is 200-500mg/L, and ammonium sulfate is added, makes ammonia nitrogen concentration 1.5-3mg/L；In blender revolving speed 100-
Under the conditions of 300rpm, after being stirred to react 1-3h, then 1-2h is stood, and exhausts the supernatant liquor of 70% volume；It repeats the above process,
Until domestication terminates when ammonia nitrogen concentration is less than 0.3mg/L and generates nitrate nitrogen concentration greater than 1.5mg/L after reaction.
Preferably, the step C be inoculated in HUSB tank the following steps are included: will pass through the resulting activated sludge of step B,
It is inoculated with the 10-30% that volume is HUSB tank dischargeable capacity；Then, being passed through in HUSB tank into water volume is HUSB tank dischargeable capacity
The tap water of 30-50%, nutritional agents is added after 1h for the first time, adds add nutrition for the second time after 2h after nutritional agents for the first time
Agent, for the second time after 3h third time addition nutritional agents after addition nutritional agents；After HUSB tank stands 4-6h, it is passed through sanitary sewage and starts
Operation.
Preferably, each dosage of the nutritional agents be 1-3g/L and/or the nutritional agents be compound amino acid and/or
Chitosan, oyster shell, which are respectively crushed to, can blend with plastics and be processed into Filamentous or velutinate carrier.
Preferably, nitrobacteria, denitrifying bacteria are contained in the activated sludge.
Preferably, the pH of the step C inoculation environment is controlled in 7-9.
Preferably, the environment temperature of the purification process is controlled at 20-35 DEG C.
A kind of purification process of dispersant type domestic wastewater purification system described in any of the above one kind is in sanitary sewage
Using.
Beneficial effects of the present invention: (1) present invention purification sewage effect is good, and water outlet reaches " urban wastewater treatment firm dirt
Contaminate object discharge standard " (GB18918-2002) level-one B mark；(2) not only manufactured granular sludge degree is high by the present invention, up to
3000~5000mg/L, and without a large amount of floc sludge, so that ability has obtained significantly mentioning during handling waste water
It is high；(3) present invention is by the way that nutritional agents to be attached in plastic carrier, and oyster shell, energy are added in the ingredient of nutritional agents
It is enough that the nutritional ingredient of part is adsorbed in microcosmic hole, slow release is obtained, the effect of activated sludge is gradually cultivated, improves activity
The active constituent of sludge；(4) present invention also by launching nutritional agents several times, the synergistic effect with plastic carrier, equally
The active constituent of activated sludge can be improved；(5) after the microcosmic hole of the oyster shell in plastic carrier discharges nutritional agents simultaneously, and energy
Enough further absorption other impurities, improve wastewater purifying efficiency.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
The sewage that following embodiment uses is derived from the sewage draining exit at the pipe industry septic tank of Xinyu City Huifeng, Jiangxi Province, water yield Q
=0.5m3/ h carries out index test to the water sampling of sewage draining exit, and test value is shown in Table 1.
Embodiment 1
The water of sewage draining exit is handled by following steps；
A kind of purification process of dispersant type domestic wastewater purification system, comprising the following steps:
S0: pretreatment: sanitary sewage is entered in HUSB tank by lattice canopy well primary filtration, launching in HUSB tank has work
Property sludge, activated sludge concentration reaches 3000mg/L, obtains primary wastewater, and the activated sludge that the present embodiment uses is purchased in Xinyu
Sewage treatment plant, village under city；
S1: water inlet agitation phases: anaerobism is carried out to primary wastewater in HUSB tank and stirs 1h, so that water quality is uniform, after being
Continuous process, which provides, stablizes carbon source；
S2: fill phase: by air lift pump up water component first will in HUSB tank by volume fraction calculate for 20% water introduce it is net
Change tank in, control purification pot in anaerobic environment, DO concentration be 0.1mg/L, by air lift pump up water component provide stablize carbon source；
S3: the denitrification stage: anaerobism stirs 2h, denitrifying bacterium anaerobic condition denitrogenation；
S4: the nitrification stage: aeration stirring 2h, controlling DO concentration in purification pot is 2mg/L, aerobic degradation organic matter
Carry out nitration reaction；
S5: the static state deposition stage: stop anaerobism stirring, static state deposition 3h, mud-water separation；
S6: refluxing stage: it is 20% nitrification liquid into HUSB tank that reflux is calculated by volume fraction, and is discharged and calculates by mass fraction
It is 5% phosphorous excess sludge into sludge-tank；
S7: the component discharge following supernatant liquor of liquid level bleeding stage: is pumped up water into clear water reserviors by air lift.
Contain nitrobacteria, denitrifying bacteria in the activated sludge.
The environment temperature of the purification process is controlled at 25 DEG C.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Embodiment 2
A kind of purification process of dispersant type domestic wastewater purification system, comprising the following steps:
S0: pretreatment: sanitary sewage is entered in HUSB tank by lattice canopy well primary filtration, launching in HUSB tank has work
Property sludge, activated sludge concentration reaches 4000mg/L, obtains primary wastewater, and the activated sludge that the present embodiment uses is purchased in Xinyu
Sewage treatment plant, village under city；
S1: water inlet agitation phases: anaerobism is carried out to primary wastewater in HUSB tank and stirs 2h, so that water quality is uniform, after being
Continuous process, which provides, stablizes carbon source；
S2: fill phase: by air lift pump up water component first will in HUSB tank by volume fraction calculate for 35% water introduce it is net
Change tank in, control purification pot in anaerobic environment, DO concentration be 0.3mg/L, by air lift pump up water component provide stablize carbon source；
S3: the denitrification stage: anaerobism stirs 3h, denitrifying bacterium anaerobic condition denitrogenation；
S4: the nitrification stage: aeration stirring 3h, controlling DO concentration in purification pot is 3mg/L, aerobic degradation organic matter
Carry out nitration reaction；
S5: the static state deposition stage: stop anaerobism stirring, static state deposition 4.5h, mud-water separation；
S6: refluxing stage: it is 25% nitrification liquid into HUSB tank that reflux is calculated by volume fraction, and is discharged and calculates by mass fraction
It is 8% phosphorous excess sludge into sludge-tank；
S7: the component discharge following supernatant liquor of liquid level bleeding stage: is pumped up water into clear water reserviors by air lift.
Contain nitrobacteria, denitrifying bacteria in the activated sludge.
The environment temperature of the purification process is controlled at 25 DEG C.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Embodiment 3
A kind of purification process of dispersant type domestic wastewater purification system, comprising the following steps:
S0: pretreatment: sanitary sewage is entered in HUSB tank by lattice canopy well primary filtration, launching in HUSB tank has work
Property sludge, activated sludge concentration reaches 5000mg/L, obtains primary wastewater, and the activated sludge that the present embodiment uses is purchased in Xinyu
Sewage treatment plant, village under city；
S1: water inlet agitation phases: anaerobism is carried out to primary wastewater in HUSB tank and stirs 3h, so that water quality is uniform, after being
Continuous process, which provides, stablizes carbon source；
S2: fill phase: by air lift pump up water component first will in HUSB tank by volume fraction calculate for 50% water introduce it is net
Change tank in, control purification pot in anaerobic environment, DO concentration be 0.5mg/L, by air lift pump up water component provide stablize carbon source；
S3: the denitrification stage: anaerobism stirs 4h, denitrifying bacterium anaerobic condition denitrogenation；
S4: the nitrification stage: aeration stirring 4h, controlling DO concentration in purification pot is 4mg/L, aerobic degradation organic matter
Carry out nitration reaction；
S5: the static state deposition stage: stop anaerobism stirring, static state deposition 6h, mud-water separation；
S6: refluxing stage: it is 30% nitrification liquid into HUSB tank that reflux is calculated by volume fraction, and is discharged and calculates by mass fraction
It is 10% phosphorous excess sludge into sludge-tank；
S7: the component discharge following supernatant liquor of liquid level bleeding stage: is pumped up water into clear water reserviors by air lift.
Contain nitrobacteria, denitrifying bacteria in the activated sludge.
The environment temperature of the purification process is controlled at 25 DEG C.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Embodiment 4
The present embodiment is the improvement made on the basis of embodiment 2, and the activated sludge in the specifically described step S0 is also
It follows the steps below and is cultivated:
A: activated sludge is collected；The tap water of 2 times of volumes is added in the activated sludge that concentration 3g/L is taken by sewage plant, stirring
1h is stood after 0.5h, then exhausts the water of 2 times of volumes, is so repeated 3 times.
B: activated sludge acclimatization；Sludge concentration will be diluted to tap water by the resulting activated sludge of processing of step A is
200mg/L is added ammonium sulfate, makes ammonia nitrogen concentration 1.5mg/L；Under the conditions of blender revolving speed 100rpm, after being stirred to react 1h,
1h is stood again, and exhausts the supernatant liquor of 70% volume；It repeats the above process, until ammonia nitrogen concentration is less than after reaction
0.3mg/L and generate nitrate nitrogen concentration be greater than 1.5mg/L when, domestication terminates.
C: activated sludge inoculation.It will be inoculated in HUSB tank by the resulting activated sludge of step B, inoculation volume is HUSB
The 10% of tank dischargeable capacity；Then, be passed through in HUSB tank be into water volume HUSB tank dischargeable capacity 30% tap water, after 1h
Addition nutritional agents for the first time adds nutritional agents after 2h after addition nutritional agents for the first time, after second is added nutritional agents for the second time
After 3h third time addition nutritional agents；After HUSB tank stands 4h, it is passed through sanitary sewage and brings into operation.
The each dosage of nutritional agents be 3g/L, the nutritional agents be 1:2 by mass ratio compound amino acid, oyster
Shell, which is respectively crushed to, can blend with plastics and be processed into Filamentous or velutinate carrier.
The pH of the step C inoculation environment is controlled 7.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Embodiment 5
The present embodiment is the improvement made on the basis of embodiment 2, and the activated sludge in the specifically described step S0 is also
It follows the steps below and is cultivated:
A: activated sludge is collected；The activated sludge that concentration 3.5g/L is taken by sewage plant is added the tap water of 3 times of volumes, stirs
2h is stood after mixing 1h, then exhausts the water of 3 times of volumes, is so repeated 4 times.
B: activated sludge acclimatization；Sludge concentration will be diluted to tap water by the resulting activated sludge of processing of step A is
350mg/L is added ammonium sulfate, makes ammonia nitrogen concentration 2mg/L；Under the conditions of blender revolving speed 200rpm, after being stirred to react 2h, then
1.5h is stood, and exhausts the supernatant liquor of 70% volume；It repeats the above process, until ammonia nitrogen concentration is less than after reaction
0.3mg/L and generate nitrate nitrogen concentration be greater than 1.5mg/L when, domestication terminates.
C: activated sludge inoculation；It will be inoculated in HUSB tank by the resulting activated sludge of step B, inoculation volume is HUSB
The 20% of tank dischargeable capacity；Then, be passed through in HUSB tank be into water volume HUSB tank dischargeable capacity 40% tap water, after 1h
Addition nutritional agents for the first time adds nutritional agents after 2h after addition nutritional agents for the first time, after second is added nutritional agents for the second time
After 3h third time addition nutritional agents；After HUSB tank stands 5h, it is passed through sanitary sewage and brings into operation.
The each dosage of nutritional agents be 2g/L, the nutritional agents be 1:3 by mass ratio compound amino acid, oyster
Shell, which is respectively crushed to, can blend with plastics and be processed into Filamentous or velutinate carrier.
The pH of the step C inoculation environment is controlled 8.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Embodiment 6
The present embodiment is the improvement made on the basis of embodiment 2, and the activated sludge in the specifically described step S0 is also
It follows the steps below and is cultivated:
A: activated sludge is collected；The tap water of 3 times of volumes is added in the activated sludge that concentration 4g/L is taken by sewage plant, stirring
2h is stood after 01h, then exhausts the water of 3 times of volumes, is so repeated 5 times.
B: activated sludge acclimatization；Sludge concentration will be diluted to tap water by the resulting activated sludge of processing of step A is
500mg/L is added ammonium sulfate, makes ammonia nitrogen concentration 3mg/L；Under the conditions of blender revolving speed 300rpm, after being stirred to react 3h, then
2h is stood, and exhausts the supernatant liquor of 70% volume；It repeats the above process, until ammonia nitrogen concentration is less than 0.3mg/ after reaction
L, when and generating nitrate nitrogen concentration greater than 1.5mg/L, domestication terminates.
C: activated sludge inoculation；It will be inoculated in HUSB tank by the resulting activated sludge of step B, inoculation volume is HUSB
The 30% of tank dischargeable capacity；Then, be passed through in HUSB tank be into water volume HUSB tank dischargeable capacity 50% tap water, after 1h
Addition nutritional agents for the first time adds nutritional agents after 2h after addition nutritional agents for the first time, after second is added nutritional agents for the second time
After 3h third time addition nutritional agents；After HUSB tank stands 6h, it is passed through sanitary sewage and brings into operation.
The each dosage of nutritional agents be 3g/L, the nutritional agents be 1:2 by mass ratio chitosan, oyster shell it is each
Filiform or velutinate carrier can be blended and are processed into plastics from being crushed to.
The pH of the step C inoculation environment is controlled 9.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Embodiment 7
The present embodiment is the improvement made on the basis of embodiment 6, and it is 1 that the specifically described nutritional agents, which is by mass ratio:
Compound amino acid, chitosan, the oyster shell of 1:5, which is respectively crushed to, can blend with plastics and be processed into Filamentous or velutinate load
Body.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Embodiment 8
The present embodiment is the improvement made on the basis of embodiment 6, and it is 2 that the specifically described nutritional agents, which is by mass ratio:
Compound amino acid, chitosan, the oyster shell of 3:8, which is respectively crushed to, can blend with plastics and be processed into Filamentous or velutinate load
Body.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Embodiment 9
The present embodiment is the improvement made on the basis of embodiment 6, and it is 3 that the specifically described nutritional agents, which is by mass ratio:
Compound amino acid, chitosan, the oyster shell of 5:9, which is respectively crushed to, can blend with plastics and be processed into Filamentous or velutinate load
Body.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Comparative example 1
This comparative example is the comparison made on the basis of embodiment 6, specifically step C: will pass through the resulting work of step B
Property sludge seeding in HUSB tank, inoculation volume is the 30% of HUSB tank dischargeable capacity；Then, it is passed through in HUSB tank into water volume
For 50% tap water of HUSB tank dischargeable capacity, nutritional agents is disposably added after 3h；After HUSB tank stands 6h, it is dirty to be passed through life
Water brings into operation.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Comparative example 2
This comparative example is the comparison made on the basis of embodiment 6, and the specifically described nutritional agents is chitosan.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Comparative example 3
This comparative example is the comparison made on the basis of embodiment 6, and it is 5:2 that the specifically described nutritional agents, which is by mass ratio,
Compound amino acid, chitosan are formulated.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
Comparative example 4
This comparative example is the comparison made on the basis of embodiment 6, and it is 5:2 that the specifically described nutritional agents, which is by mass ratio,
Compound amino acid, chitosan is respectively crushed to that Filamentous or velutinate carrier can be blended and be processed into plastics.
Supernatant liquor is taken to be tested for the property, test result is shown in Table 2.
1 sewage draining exit sample indices test value of table
2 sanitary sewage indices removal rate of table
From table 1, table 2 it is found that the water outlet of embodiment 1-9 sample reaches " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) level-one B is marked；Wherein the clean-up effect of embodiment 8 is optimal, and BOD removal rate is up to 98.52%, SS removal rate
Up to 98.13%, NH3- N removal rate is up to 99.14%, TN removal rate 88.10%, and TP removal rate is up to 91.53%；Wherein,
The comparison that comparative example 1 and embodiment 6 are made, clean-up effect are lower than embodiment 6, show that nutritional agents is put into batches and are more conducive to sewage
Purification；The comparison that comparative example 2-4 makes with embodiment 6, clean-up effect are below embodiment 6, illustrate the addition of oyster shell with
And nutritional agents is prepared into Filamentous or velutinate carrier, there is the clean-up effect for further increasing sewage, concrete reason is logical
It crosses and nutritional agents is attached in plastic carrier, and add oyster shell in the ingredient of nutritional agents, it can be by the nutrition of part
Ingredient is adsorbed in microcosmic hole, obtains slow release, gradually cultivate activated sludge effect, improve activated sludge activity at
Point；Also by being launched several times to nutritional agents, the synergistic effect with plastic carrier, equally can also improve activated sludge activity at
Point；After the microcosmic hole of the oyster shell in plastic carrier discharges nutritional agents simultaneously, and other impurities can be further adsorbed, improved
Wastewater purifying efficiency.
Water quality indicator measuring method and and state's label be shown in Table 3.
3 water quality indicator measuring method of table
Above-described embodiment only describes the optimal usage mode of existing equipment, and similar conventional machinery means is used to replace this reality
The element in example is applied, protection scope is each fallen within.
Claims (10)
1. a kind of purification process of dispersant type domestic wastewater purification system, it is characterised in that: the following steps are included:
S0: pretreatment: sanitary sewage is entered in HUSB tank by lattice canopy well primary filtration, active dirt is launched in HUSB tank
Mud, activated sludge concentration reach 3000~5000mg/L, obtain primary wastewater；
S1: water inlet agitation phases: anaerobism is carried out to primary wastewater in HUSB tank and stirs 1~3h；
S2: fill phase: by air lift pump up water component first will in HUSB tank by volume fraction calculate be 20~50% primary wastewater
It introduces in purification pot, controls the anaerobic environment in purification pot, DO concentration is 0.1~0.5mg/L；
S3: the denitrification stage: anaerobism stirs 2~4h in purification pot；
S4: the nitrification stage: aeration stirring 2-4h, controlling DO concentration in purification pot is 2~4mg/L；
S5: the static state deposition stage: stopping aeration stirring, static state deposition 3-6h, and mud-water separation obtains primary purifying water and phosphorous residue
Sludge；
S6: refluxing stage: the primary purifying water in purification pot is calculated to reflux 20-30% into HUSB tank by volume, and is discharged
The phosphorous excess sludge of 5-10% in purification pot by mass is into sludge-tank；
S7: component discharge primary purifying water bleeding stage: is pumped up water into clear water reserviors by air lift.
2. a kind of purification process of dispersant type domestic wastewater purification system according to claim 1, it is characterised in that: described
Activated sludge in step S0, which also follows the steps below, to be cultivated:
A: activated sludge is collected；
B: activated sludge acclimatization；
C: activated sludge inoculation.
3. a kind of purification process of dispersant type domestic wastewater purification system according to claim 2, it is characterised in that: described
The following steps are included: taking the activated sludge of 3~4g/L of concentration by sewage plant, the tap water of 2-3 times of volume of addition stirs step A
1-2h is stood after 0.5-1h, then exhausts the water of 2-3 times of volume, is so repeated 3-5 times.
4. a kind of purification process of dispersant type domestic wastewater purification system according to claim 2, it is characterised in that: described
Step B is the following steps are included: will be diluted to sludge concentration with tap water by the resulting activated sludge of processing of step A is 200-
500mg/L is added ammonium sulfate, makes ammonia nitrogen concentration 1.5-3mg/L；Under the conditions of blender revolving speed 100-300rpm, stirring is anti-
After answering 1-3h, then 1-2h is stood, and exhausts the supernatant liquor of 70% volume；It repeats the above process, until ammonia nitrogen after reaction
When concentration is less than 0.3mg/L and generates nitrate nitrogen concentration greater than 1.5mg/L, domestication terminates.
5. a kind of purification process of dispersant type domestic wastewater purification system according to claim 2, it is characterised in that: described
For step C the following steps are included: will be inoculated in HUSB tank by the resulting activated sludge of step B, inoculation volume is that HUSB tank has
Imitate the 10-30% of volume；Then, the tap water into the 30-50% that water volume is HUSB tank dischargeable capacity, 1h are passed through in HUSB tank
It adds nutritional agents for the first time afterwards, adds nutritional agents for the second time after 2h after addition nutritional agents for the first time, add nutritional agents for the second time
Afterwards after 3h third time addition nutritional agents；After HUSB tank stands 4-6h, it is passed through sanitary sewage and brings into operation.
6. a kind of purification process of dispersant type domestic wastewater purification system according to claim 5, it is characterised in that: described
The each dosage of nutritional agents is 1-3g/L and/or the nutritional agents is compound amino acid and/or chitosan, oyster shell respectively powder
Filamentous or velutinate carrier can be blended with plastics and be processed by being broken to.
7. a kind of purification process of dispersant type domestic wastewater purification system according to claim 1, it is characterised in that: described
Contain nitrobacteria, denitrifying bacteria in activated sludge.
8. a kind of purification process of dispersant type domestic wastewater purification system according to claim 2, it is characterised in that: described
The pH that step C is inoculated with environment is controlled in 7-9.
9. a kind of purification process of dispersant type domestic wastewater purification system according to any one of claims 1 to 8, special
Sign is: the environment temperature of the purification process is controlled at 20-35 DEG C.
10. a kind of application of the purification process of dispersant type domestic wastewater purification system as claimed in claim 9 in sanitary sewage.
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| US6472198B1 (en) * | 1998-05-15 | 2002-10-29 | The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University | Slow release substrates for driving microbial transformations of environmental contaminants |
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| US6472198B1 (en) * | 1998-05-15 | 2002-10-29 | The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University | Slow release substrates for driving microbial transformations of environmental contaminants |
| CN100999361A (en) * | 2007-01-05 | 2007-07-18 | 华南理工大学 | Nutrition slow-release type biofiller for water treatment and its preparation method |
| CN202625930U (en) * | 2012-07-04 | 2012-12-26 | 河南省正大环境科技咨询工程有限公司 | System for treating production sewage of jujube processing industry |
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