CN102730817A - Method for inhibiting expansion of aerobic active sludge - Google Patents
Method for inhibiting expansion of aerobic active sludge Download PDFInfo
- Publication number
- CN102730817A CN102730817A CN2012102105564A CN201210210556A CN102730817A CN 102730817 A CN102730817 A CN 102730817A CN 2012102105564 A CN2012102105564 A CN 2012102105564A CN 201210210556 A CN201210210556 A CN 201210210556A CN 102730817 A CN102730817 A CN 102730817A
- Authority
- CN
- China
- Prior art keywords
- active sludge
- activated sludge
- heavy metallic
- activating enzymes
- aerobic activated
- 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
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a method for inhibiting expansion of aerobic active sludge. According to the method, the growth of bacteria in wastewater is inhibited through a method of adding 40-70 ppm of activating enzymes and 50-80 ppm of heavy metallic salts into wastewater and reducing the content of oxygen in wastewater, so as to achieve the purpose of inhibiting expansion of aerobic active sludge. The heavy metallic salts contain five or more than five salts selected from white copperas zinc sulfate, magnesium chloride, vanadium bromide, magnesium sulfate, nickel chloride, manganese chloride, arsenic nitrate, barium sulfate, lead bromide and chromium carbonate. The activating enzymes contain two enzymes selected from succinate dehydrogenase, alkaline phosphatase, glucoamylase of aspergillus niger and glucose isomerase. The method provided by the invention is simple and can be used to effectively inhibit expansion of aerobic active sludge.
Description
Technical field
The present invention relates to a kind of inhibition aerobic activated sludge expansible method, belong to sewage treatment area.
Background technology
The expansion of aerobic activated sludge is mainly caused by hyphomycetic a large amount of breedings.This thread fungus has the characteristic of unidirectional growth, and this makes that thread fungus can obtain the concentration of substrate higher than other granule interior mikrobes, thereby is increased fast, has caused sludge bulking under the growing environment that is in low concentration of substrate.
Aerobic activated sludge expansible principal character comprises that mud is loosely organized, the loss of poor, a large amount of mud of deposition compression performance, water outlet muddiness etc., sometimes also with the generation of significant foam.It directly influences effluent quality, and endangers the running of whole biochemical system.And in actual moving process, the phenomenon of sludge bulking is again inevitably, thereby has become one of problem demanding prompt solution in the sewage treatment area.
At present, aerobic activated sludge expansible treatment process is mainly contained following several kinds: destroy hyphomycetic effect such as chlorine, hydrogen peroxide or ozone being added in to play in the returned sluge, thereby reach the purpose of eliminating sludge bulking; Again such as, head adds wadding in the aeration tank, through the organic acid in the middle of removing, come repression of swelling thereby suppress hyphomycetic growth factor, but its cost is higher, also can bring inconvenience to later maintenance management; In addition; Can be through anoxic section and anaerobism section and mud return-flow system be set before aerobic section, make mixed bacterial alternately be in the anoxic oxygen condition of becoming reconciled, and make the variation of organic concentration generating period property; Like this, not only control sludge bulking but also improved the settling property of mud; In addition; Can also the aeration tank be divided into many lattice, and move, or set up small-sized preaeration tank that lattice is provided with as biological selector with the mode of plug-flow; Absorbed portion organism, elimination organic acid can effectively suppress hyphomycetic growth simultaneously; Suppress sludge bulking with this, but this method actual operation is comparatively complicated, has also increased cost of investment to a certain extent.
Therefore, we are necessary to improve on the basis of existing technology, to reach better, to suppress more effectively, more easily aerobic activated sludge expansible purpose, improve the processing efficiency of sewage.
Summary of the invention
The present invention is directed to the middle deficiency of above technology; A kind of inhibition aerobic activated sludge expansible method is provided; This law is through adding growth and the breeding that the inorganic salt that contain heavy metal on a small quantity and enzyme suppress bacterium in the waste water in waste water; Promote gathering of mikrobe in the waste water, strengthen density, help the deposition of active sludge.
In order to achieve the above object, the technical scheme of taking is:
A kind of inhibition aerobic activated sludge expansible method is characterized in that:
(1) state of active sludge in the claire when the microfauna in the mud less and when having raw-silk waste shape mikrobe to occur, is regulated the pH value in 6～7 scopes;
(2) behind continuation aeration 20～30min, when observing the wheel animalcule that occurs in the active sludge, add the activating enzymes of 50～100ppm;
(3) again behind extended aeration 10～15min, add the heavy metallic salt of 50～100ppm inwards;
(4) stop aeration, let mud natural sedimentation 3～5 hours.
Described activating enzymes are: succsinic acid takes off any two kinds in enzyme, SEAP, aspergillus glucoamylase, the glucose isomerase.
Described heavy metallic salt is: in zinc sulfate, magnesium chloride, bromination vanadium, sal epsom, nickelous chloride, Manganous chloride tetrahydrate, nitric acid arsenic, permanent white, lead bromide and the chromium carbonate more than five kinds or five kinds.
Described activating enzymes, by quality ratio,
Succsinic acid takes off enzyme 45～55% SEAPs 45～55%
Aspergillus glucoamylase 45～55% glucose isomerases 45～55%.
Described heavy metallic salt, by quality ratio,
Zinc sulfate 15～25% magnesium chlorides 15～25% chromium carbonates 15～25%
Bromination vanadium 15～25% sal epsom 15～25% nickelous chlorides 15～25%
Manganous chloride tetrahydrate 15～25% nitric acid arsenic 15～25% permanent white 15～25%.
The application method of this invention is: the state of active sludge in the claire at first; When the microfauna in the mud less and when having raw-silk waste shape mikrobe to occur; Regulate the pH value in 6～7 scopes, continue aeration 20～30min, when in observing active sludge, wheel animalcule occurring; Add activating enzymes by quality ratio, succsinic acid takes off enzyme 45～55%, SEAP 45～55%, aspergillus glucoamylase 45～55%, glucose isomerase 45～55%; Extended aeration 10～15min then; Adding heavy metallic salt afterwards more inwards does by quality ratio; Zinc sulfate 15～25%, magnesium chloride 15～25%, chromium carbonate 15～25%, bromination vanadium 15～25%, sal epsom 15～25%, nickelous chloride 15～25%, Manganous chloride tetrahydrate 15～25%, nitric acid arsenic 15～25%, permanent white 15～25%, lead bromide 15～25%; The activating enzymes that add are 50～100ppm; The heavy metallic salt that adds is 50～100ppm, stops aeration afterwards, lets the mud natural sedimentation get final product in 3～5 hours.
The principle of this invention: through in waste water, adding growth and the breeding that the inorganic salt that contain heavy metal on a small quantity and enzyme suppress bacterium in the waste water, the mikrobe in the waste water is collected at together, increases active sludge density, help the deposition of active sludge.
The practical implementation case:
The state of active sludge in the claire at first; When the microfauna in the mud less and when having raw-silk waste shape mikrobe to occur; Regulate the pH value in 6～7 scopes, continue aeration 20～30min, when in observing active sludge, wheel animalcule occurring; Add activating enzymes by quality ratio, succsinic acid takes off enzyme 45～55%, SEAP 45～55%, aspergillus glucoamylase 45～55%, glucose isomerase 45～55%; Extended aeration 10～15min more afterwards; Adding heavy metallic salt afterwards more inwards does by quality ratio; Zinc sulfate 15～25%, magnesium chloride 15～25%, chromium carbonate 15～25%, bromination vanadium 15～25%, sal epsom 15～25%, nickelous chloride 15～25%, Manganous chloride tetrahydrate 15～25%, nitric acid arsenic 15～25%, permanent white 15～25%, lead bromide 15～25%; The activating enzymes that add are 50～100ppm; The heavy metallic salt that adds is 50～100ppm, stops aeration afterwards, lets the mud natural sedimentation get final product in 3～5 hours.
Instance 1:
At first, get the active sludge 1kg in somewhere, observe the state of active sludge, when the microfauna in the mud less and when having raw-silk waste shape mikrobe to occur; Regulating the pH value then is 7, continues aeration 20min, when in observing active sludge, wheel animalcule occurring; Adding activating enzymes does by quality ratio, and succsinic acid takes off enzyme 4.5g, SEAP 5.5g, afterwards extended aeration 10min again; And then add heavy metallic salt inwards and do by quality ratio, zinc sulfate 1.5g, magnesium chloride 2.0g, chromium carbonate 2.5g, bromination vanadium 2.0g, sal epsom 2.0g, the activating enzymes that add are 100ppm; The heavy metallic salt that adds is 100ppm, stops aeration afterwards, lets the mud natural sedimentation after 3 hours; Drop to 50ml/g through detecting the SVI value by original 250ml/g, mud is by the floating deposition state that becomes, and swelling fades away.
Instance 2:
At first, get the active sludge 1kg in somewhere, observe the state of active sludge, when the microfauna in the mud less and when having raw-silk waste shape mikrobe to occur; Regulating the pH value then is 7, continues aeration 30min, when in observing active sludge, wheel animalcule occurring; Adding activating enzymes does by quality ratio, aspergillus glucoamylase 2.25g, glucose isomerase 2.75g, extended aeration 15min more afterwards; And then add heavy metallic salt inwards and do by quality ratio, Manganous chloride tetrahydrate 1.25g, the refreshing 1g of nitric acid, permanent white 0.9g, lead bromide 1.1g, chromium carbonate 0.75g, the activating enzymes that add are 50ppm; The heavy metallic salt that adds is 50ppm, stops aeration afterwards, lets the mud natural sedimentation after 5 hours; Drop to 45ml/g through detecting the SVI value by original 300ml/g, mud is by the floating deposition state that becomes, and swelling fades away.
Instance 3:
At first, get the active sludge 5kg in somewhere, observe the state of active sludge, when the microfauna in the mud less and when having raw-silk waste shape mikrobe to occur; Regulating the pH value then is 6, continues aeration 25min, when in observing active sludge, wheel animalcule occurring; Adding activating enzymes does by quality ratio, and succsinic acid takes off enzyme 2.7g, glucose isomerase 3.3g, afterwards extended aeration 12min again; And then to add heavy metallic salt inwards be that magnesium chloride 1.6g, sal epsom 1.2g, Manganous chloride tetrahydrate 2.0g, permanent white 2g, chromium carbonate 1.2g, the activating enzymes that add are 60ppm by quality ratio; The heavy metallic salt that adds is 80ppm, stops aeration afterwards, lets the mud natural sedimentation after 4 hours; Drop to 45ml/g through detecting the SVI value by original 250ml/g, mud is by the floating deposition state that becomes, and swelling fades away.
Claims (5)
1. one kind is suppressed aerobic activated sludge expansible method, it is characterized in that:
(1) state of active sludge in the claire when the microfauna in the mud less and when having raw-silk waste shape mikrobe to occur, is regulated the pH value in 6～7 scopes;
(2) behind continuation aeration 20～30min, when observing the wheel animalcule that occurs in the active sludge, add the activating enzymes of 50～100ppm;
(3) again behind extended aeration 10～15min, add the heavy metallic salt of 50～100ppm inwards;
(4) stop aeration, let mud natural sedimentation 3～5 hours.
2. a kind of inhibition aerobic activated sludge expansible method according to claim 1, it is characterized in that: described activating enzymes are: succsinic acid takes off any two kinds in enzyme, SEAP, aspergillus glucoamylase, the glucose isomerase.
3. a kind of inhibition aerobic activated sludge expansible method according to claim 1, it is characterized in that: described heavy metallic salt is: in zinc sulfate, magnesium chloride, bromination vanadium, sal epsom, nickelous chloride, Manganous chloride tetrahydrate, nitric acid arsenic, permanent white, lead bromide and the chromium carbonate more than five kinds or five kinds.
4. a kind of inhibition aerobic activated sludge expansible method according to claim 2 is characterized in that: described activating enzymes, by quality ratio,
Succsinic acid takes off enzyme 45～55% SEAPs 45～55%
Aspergillus glucoamylase 45～55% glucose isomerases 45～55%.
5. a kind of inhibition aerobic activated sludge expansible method according to claim 3 is characterized in that: described heavy metallic salt, by quality ratio,
Zinc sulfate 15～25% magnesium chlorides 15～25% chromium carbonates 15～25%
Bromination vanadium 15～25% sal epsom 15～25% nickelous chlorides 15～25%
Manganous chloride tetrahydrate 15～25% nitric acid arsenic 15～25% permanent white 15～25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102105564A CN102730817A (en) | 2012-06-19 | 2012-06-19 | Method for inhibiting expansion of aerobic active sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102105564A CN102730817A (en) | 2012-06-19 | 2012-06-19 | Method for inhibiting expansion of aerobic active sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102730817A true CN102730817A (en) | 2012-10-17 |
Family
ID=46987222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102105564A Pending CN102730817A (en) | 2012-06-19 | 2012-06-19 | Method for inhibiting expansion of aerobic active sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102730817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591378A (en) * | 2015-02-13 | 2015-05-06 | 南京大学 | Biochemical sludge swelling control system and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5326466A (en) * | 1976-08-23 | 1978-03-11 | Mitsubishi Gas Chemical Co | Agent for preventing activated sludge from bulking |
| JPH07328681A (en) * | 1994-06-09 | 1995-12-19 | Nippon Soda Co Ltd | Method for preventing and removing filiform bulking using bacteriolytic enzyme for filamentous bacteria |
| CN1478144A (en) * | 2000-10-16 | 2004-02-25 | 约瑟夫・吉列尔梅・德菲格雷多公司 | Production process and composition of an enzymatic preparation and its use for treatment of domestic and industrial effluents of high fat, protein and/or carbohydrate content |
| CN101898830A (en) * | 2010-05-05 | 2010-12-01 | 麦广鸿 | Complex enzyme preparation for sewage treatment and application method thereof |
-
2012
- 2012-06-19 CN CN2012102105564A patent/CN102730817A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5326466A (en) * | 1976-08-23 | 1978-03-11 | Mitsubishi Gas Chemical Co | Agent for preventing activated sludge from bulking |
| JPH07328681A (en) * | 1994-06-09 | 1995-12-19 | Nippon Soda Co Ltd | Method for preventing and removing filiform bulking using bacteriolytic enzyme for filamentous bacteria |
| CN1478144A (en) * | 2000-10-16 | 2004-02-25 | 约瑟夫・吉列尔梅・德菲格雷多公司 | Production process and composition of an enzymatic preparation and its use for treatment of domestic and industrial effluents of high fat, protein and/or carbohydrate content |
| CN101898830A (en) * | 2010-05-05 | 2010-12-01 | 麦广鸿 | Complex enzyme preparation for sewage treatment and application method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591378A (en) * | 2015-02-13 | 2015-05-06 | 南京大学 | Biochemical sludge swelling control system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tang et al. | Effect of aeration rate on performance and stability of algal-bacterial symbiosis system to treat domestic wastewater in sequencing batch reactors | |
| CN102001792B (en) | Glyphosate wastewater treatment method | |
| CN101830558B (en) | Method for cultivating anaerobic ammonium oxidation granular sludge | |
| WO2012100550A1 (en) | Zero-valent iron two-phase anaerobic reactor | |
| Nnaji | A review of the upflow anaerobic sludge blanket reactor | |
| CN101898829A (en) | Method for starting salt tolerant anammox reactor | |
| CN111137973A (en) | Denitrification functional filler, filler ball, filling method and application | |
| CN103193366A (en) | Integrated treatment method of corn alcohol wastewater | |
| US11999642B2 (en) | Method for removing calcium ions from high concentration organic wastewater | |
| CN1254440C (en) | Method for preparing granular ammonia oxidative mud with anaerobic bacteria from mixed mud | |
| CN106517716B (en) | A method of strengthening residual active sludge anaerobic digestion performance and desulfurization phosphorus removal property | |
| CN102730817A (en) | Method for inhibiting expansion of aerobic active sludge | |
| Luo et al. | Enhanced removal of humic acid from piggery digestate by combined microalgae and electric field | |
| CN210237408U (en) | Poisonous waste water treatment equipment of resin production | |
| CN106316690A (en) | Method for produce liquid organic fertilizer with starch wastewater to improve saline and alkaline land | |
| US20120318735A1 (en) | Process for the thermophilic aerobic treatment of concentrated organic waste water and the related plant | |
| CN101935103A (en) | Method for culturing aerobic granular sludge for degrading chlorophenol by using 2,4-dichlorphenoxyacetic acid as substituted carbon source | |
| Işık et al. | Effect of hydraulic retention time on continuous biocatalytic calcification reactor | |
| CN112830637B (en) | Biochemical combined sewage treatment method capable of obtaining phosphorus-rich sludge | |
| CN106673297A (en) | Method for treating high ammonia-nitrogen industrial wastewater by utilizing ABR-land infiltration combination technology | |
| CN211546257U (en) | Highly integrated improved A/A/O-MBR integrated sewage treatment device | |
| CN103373768A (en) | Method for reducing biological slime in circulating water system | |
| CN102583744B (en) | Biological treatment method of aquatic product processing wastewater | |
| Wei et al. | Eco-friendly management of sugar industry effluents in Guangxi, China | |
| CN101811772A (en) | Sewage treatment method by denitrification of aerobic granular sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |