CN103193359B - Deposition and biological filter combined water purification system - Google Patents
Deposition and biological filter combined water purification system Download PDFInfo
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- CN103193359B CN103193359B CN201210004046.1A CN201210004046A CN103193359B CN 103193359 B CN103193359 B CN 103193359B CN 201210004046 A CN201210004046 A CN 201210004046A CN 103193359 B CN103193359 B CN 103193359B
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- baf
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- settling tank
- deposition
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a deposition and biological filter combined water purification system and a water purification method thereof. The deposition and biological filter combined water purification system is characterized in that a deposition pool is positioned in an biological aerated filter, the deposition pool is connected with the biological aerated filter in an overflow mode, the bottom of the biological aerated filter is connected with an aeration device, and a raw water inlet tube is provided with a dosing device. The water purification method comprises the following steps: 1, mixing raw water with a coagulant through a static mixer; 2, flocculating; 3, depositing; and 4, filtering, biologically processing, and discharging purified water. In the deposition and biological filter combined water purification system, the deposition portion and the biological aerated filter are mutually independent, all phases in the water processing process do not influence each other, and preset processing effects of all the phases can be reached under the synergistic effect of deposition, filtration and organisms, and the discharged water quality is stable.
Description
Technical field
The present invention relates to the collaborative biological filter composition type clear water system of a kind of precipitation and process for purifying water, can be used for water cleaning systems and the process for purifying water of the processing of city domestic sewage.
Background technology
The land resources day in city is becoming tight, and the land used of municipal sewage plant is received control.Therefore build floor space little, the Novel sewage treatment technology that processing efficiency is high, is applicable to China's national situation, is the emphasis of sewage disposal research, and the reparation that promotes water surrounding is had important practical significance.
BAF is a kind of form being developed out by ordinary biofilter, and it integrates holding back of suspended substance and bio-oxidation, has floor space little, effluent quality is good, without advantages such as sludge bulkings, but stricter to the SS requirement of water inlet, therefore need water to carry out pre-treatment.
Phosphor in sewage nutrition content increases, and after sewage disposal, be disposed to natural water and still contain a large amount of phosphorus, be the major cause that causes eutrophication.From current research, adopt merely BAF phosphor-removing effect poor, must adopt effective chemical enhanced dephosphorization.The object of the invention is to solve the problem that above-mentioned BAF exists, the collaborative biological filter composition type clear water system of a kind of precipitation and process for purifying water are provided.
Summary of the invention
For addressing the above problem, the present invention includes precipitation BAF, coagulation device, molten air chamber.Described precipitation BAF comprises settling tank and BAF, settling tank is positioned at BAF inside, top is connected, water after precipitation process enters BAF by overflow from settling tank top, BAF current are lower to stream, bottom, filter tank is connected with molten air chamber, and former water water inlet pipe is connected with the top of settling tank, and former water water inlet pipe is provided with coagulation device.
Described settling tank is vertical-flow, and outer wall is cylinder shape, and BAF is built in its outside for cylinder shape, and the outer wall of settling tank is as the inwall in filter tank, Hu Bu UNICOM, and settling tank water is by top overflow to filter tank, and the operation in two ponds does not interfere with each other, stable.
Described settling tank and BAF are cylinder shape, and internal diameter ratio is 1: 3, and because settling tank is placed in BAF inside, actual effective surface area ratio is 1: 8, and settling tank is identical with BAF height.
Described coagulation device is tubular static mixer, be located on former water water inlet pipe, for the adding of coagulating agent, simple in structure, volume is small and exquisite, do not need special occupied ground, install easily, less investment, long service life, mixing efficiency are high, reaching moment mixes the object of saving the energy.
Described molten air chamber comprises gas generating unit air compressor, aeration head.The aeration tube of air compressor connecting container chamber, aeration tube is connected with aeration head, can be good at guaranteeing that water oxygen gas content is not less than 2mg/l, for microbiological deterioration organism provides sufficient oxygen.
A kind of process for purifying water that adopts the collaborative biological filter of above-mentioned precipitation composition type clear water system, comprise the steps: that (1) is to water collecting basin introducing sewage, and add coagulating agent at former water water inlet pipe, by tubular static mixer, sewage is mixed completely with coagulating agent; (2) water after dosing enters settling tank through water inlet pipe, and the flco forming at static mixer precipitates at this, removes part pollutent and most of phosphorus; (3) water after precipitation flows into BAF, and current are following to the streamed filter tank of flowing through; (4) pass into pressurized air to molten air chamber, air water volume ratio is 1: 1; (5) mud of settling tank bottom enters sludge thickener, and the water after filtration is discharged from water purification rising pipe; (6) operation is carried out back flushing to BAF after for some time, first air purge 5 minutes, and then air water is combined and is washed 3 minutes, then washes 10 minutes.
Beneficial effect of the present invention: a kind of settling tank and BAF that precipitates collaborative biological filter composition type clear water system is separate, each stage of water conditioning can complete in relative position, and compact construction of the present invention, modular construction is convenient to later stage reorganization and expansion, and equipmentization production, also can be used for the factory and enterprise that sewage quantity is less.By the physics to sewage, chemistry and biological treatment, reach the object of sewage purification, meet the requirement of denitrogenation dephosphorizing simultaneously, contribute to protection of the environment, economize on resources.
Accompanying drawing explanation
Fig. 1 is a kind of schema that precipitates collaborative biological filter composition type clear water system of the present invention; Fig. 2 is A-A sectional view of the present invention, is described further in conjunction with this figure.
Accompanying drawing 1 is schematic flow sheet of the present invention; Fig. 2 is A-A sectional view of the present invention.
In Fig. 1: 1 water collecting basin, 2 sump pumps, 3 waste pipes, 4 static mixers, 5 settling tanks, 6 BAF, 7 fillers, 8 supporting layers, 9 water purification rising pipes, 10 air compressor, 11 aeration tubes, 12 aeration heads, 13 clean water basin, 14 back flushing clear water water pumps, 15 back flushing water inlet pipes, 16 shore pipes, 17 mixing pits, 18 volume pumps, 19 chemical feed pipes, 20 back flushing rising pipes; In Fig. 2: 9 water purification rising pipes, 11 aeration tubes, are equipped with aeration head on 11 aeration tubes.
Embodiment
Embodiment mono-:
Accompanying drawing is a kind of specific embodiment of the present invention, this embodiment comprises the water collecting basin 1 of collecting sewage, water collecting basin 1 enters settling tank 5 by sump pump 2 through waste pipe 3, the mixing pit 17 of preparation coagulating agent, by the volume pump 18 of dosing coagulant, be connected with static mixer 4, in static mixer coagulating agent fully mix with sewage after together with enter settling tank through 3 waste pipes, settling tank bottom is connected to shore pipe 16, enter BAF 6 through settling tank 5 water after treatment by overflow, bottom, aeration tank is connected to aeration tube 11 and is connected with air compressor 10, and backwash tube 15 is connected with backwashing pump 14, top, aeration tank is connected to back flushing rising pipe 20.
Sewage is all focused on to water collecting basin 1, enter settling tank 5 by sump pump 2 through 3 waste pipes.Static mixer 4 is housed on waste pipe, coagulating agent enters static mixer by 18 volume pump pressurizations, in static mixer coagulating agent fully mix with sewage after together with enter settling tank through 3 waste pipes, carry out preliminary sedimentation, settling tank bottom is connected to shore pipe 16, mud after precipitation is discharged, mud is transported by car after simple process, enter BAF 6 through settling tank 3 water after treatment by overflow, packing area 7 is composite zeolite filter material, the high 1200mm of filler, below, packing area has been the supporting layer 8 of support effect, the molten air chamber 21 that is positioned at below, packing area is built-in with aeration head 12, aeration head 12 is connected with aeration tube 11, be positioned at and in aeration head lower portion, establish water purification rising pipe 9 and back flushing water inlet pipe 15, ventilate in aeration tank by air compressor 10, for microorganism provides sufficient oxygen, when reaching after predetermined working time, back flushing is carried out in filter tank, first then wash-water pump and air compressor carry out air water to filter tank and combine flushing to carry out air purge by air compressor, wash-water pump is washed again, water after back flushing is discharged through back flushing rising pipe.
Adopt the process for purifying water of above-mentioned precipitation BAF system to comprise the steps: that (1) is to settling tank introducing sewage, water inlet hydraulic load is 5m
3/ m
2h, and add coagulating agent on tubular static mixer on former water water inlet pipe, sewage is fully mixed with coagulating agent, form flco; (2) water after dosing enters settling tank 5, and under action of gravity, flco is precipitated to settling tank bottom, hydraulic detention time 1.5h; (3) water after precipitation process enters BAF, and in filter tank, sewage passes through holding back of filtrate, and the decomposition of microorganism enters exhalant region, hydraulic detention time 1.25h; (4) former water, in the time flowing through filler, to molten air chamber aeration, provides sufficient oxygen for microbial growth and to organic decomposition by air compressor, air compressor pressure 0.3MPa, and air water volume ratio is 1: 1; (5) mud of settling tank bottom enters sludge thickener, after simple process, transports by car, and the water after filtration is discharged from water purification rising pipe;
Embodiment bis-:
The precipitation BAF water cleaning systems of this specific embodiment is identical with the precipitation BAF water cleaning systems of specific embodiment one.
This process for purifying water is with specific embodiment one process for purifying water difference: the air water volume ratio of aeration is 2: 1.
Embodiment tri-:
The precipitation BAF water cleaning systems of this specific embodiment is identical with the precipitation BAF water cleaning systems of specific embodiment one.
This process for purifying water is with specific embodiment one process for purifying water difference: the air water volume ratio of aeration is 3: 1.
Claims (3)
1. the collaborative biological filter of a settling tank composition type clear water system, comprise settling tank and BAF, water collecting basin is connected with settling tank by sump pump, on the pipeline section connecting, tubular static mixer is installed, it is characterized in that, settling tank (5) is placed in BAF (6) inside, the outer wall of settling tank (5) is as the inwall of BAF (6), settling tank water outlet (5) enters BAF (6) by top overflow, BAF (6) current are lower to stream, settling tank is vertical-flow, outer wall is cylinder shape, BAF is built in the outside of settling tank, also be cylinder shape, the internal diameter ratio of settling tank and BAF is 1: 3, BAF (6) bottom is communicated with molten air chamber.
2. water cleaning systems described in claim 1, it is characterized in that, aeration tube (11), back flushing water inlet pipe (15), rising pipe (9) are installed in described BAF bottom, and air compressor (10) is connected with aeration tube (11) and back flushing water inlet pipe (15) respectively with backwash pump (14).
3. water cleaning systems described in claim 1, is characterized in that, BAF (6) inner stuffing is composite zeolite filter material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210004046.1A CN103193359B (en) | 2012-01-09 | 2012-01-09 | Deposition and biological filter combined water purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210004046.1A CN103193359B (en) | 2012-01-09 | 2012-01-09 | Deposition and biological filter combined water purification system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103193359A CN103193359A (en) | 2013-07-10 |
| CN103193359B true CN103193359B (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210004046.1A Expired - Fee Related CN103193359B (en) | 2012-01-09 | 2012-01-09 | Deposition and biological filter combined water purification system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104118934B (en) * | 2014-07-03 | 2016-06-22 | 济南大学 | A kind of air water co-flow magnetic force enhanced biological filters water cleaning systems and process for purifying water |
| CN104118938B (en) * | 2014-07-03 | 2016-06-22 | 济南大学 | A kind of magnetic anaerobic-aerobic biofiltration water cleaning systems and process for purifying water |
| CN105819618B (en) * | 2016-03-29 | 2018-11-27 | 江苏建筑职业技术学院 | Suspended matter equipment and its minimizing technology in a kind of flocculation aeration composite algorithm processing sewage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2270909A (en) * | 1992-09-24 | 1994-03-30 | Copa Holdings Ltd | Sewage treatment |
| CN2441794Y (en) * | 2000-09-05 | 2001-08-08 | 胡志忠 | Integrated processor for waste water |
| CN1491903A (en) * | 2003-08-15 | 2004-04-28 | 常建一 | Integrated aeration boilogical filter tank |
| CN202519125U (en) * | 2012-01-09 | 2012-11-07 | 济南大学 | Synergistic precipitation and biological filter combined reactor |
-
2012
- 2012-01-09 CN CN201210004046.1A patent/CN103193359B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2270909A (en) * | 1992-09-24 | 1994-03-30 | Copa Holdings Ltd | Sewage treatment |
| CN2441794Y (en) * | 2000-09-05 | 2001-08-08 | 胡志忠 | Integrated processor for waste water |
| CN1491903A (en) * | 2003-08-15 | 2004-04-28 | 常建一 | Integrated aeration boilogical filter tank |
| CN202519125U (en) * | 2012-01-09 | 2012-11-07 | 济南大学 | Synergistic precipitation and biological filter combined reactor |
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| CN103193359A (en) | 2013-07-10 |
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Granted publication date: 20140514 Termination date: 20160109 |