CN105645672A - Device and method for treating alkaline wastewater - Google Patents
Device and method for treating alkaline wastewater Download PDFInfo
- Publication number
- CN105645672A CN105645672A CN201511030544.3A CN201511030544A CN105645672A CN 105645672 A CN105645672 A CN 105645672A CN 201511030544 A CN201511030544 A CN 201511030544A CN 105645672 A CN105645672 A CN 105645672A
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- Prior art keywords
- aeration
- pond
- water
- anaerobic
- waste water
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- 239000002351 wastewater Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005273 aeration Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000001914 filtration Methods 0.000 claims abstract description 29
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000010802 sludge Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 10
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 5
- 230000002906 microbiologic effect Effects 0.000 claims description 16
- 238000005191 phase separation Methods 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 235000011089 carbon dioxide Nutrition 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000010815 organic waste Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 11
- 244000005700 microbiome Species 0.000 abstract 4
- 239000002912 waste gas Substances 0.000 abstract 2
- 239000002956 ash Substances 0.000 description 9
- 239000010881 fly ash Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 238000006386 neutralization reaction Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 231100000481 chemical toxicant Toxicity 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000008239 natural water Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 241000537371 Fraxinus caroliniana Species 0.000 description 1
- 235000010891 Ptelea trifoliata Nutrition 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F3/02—Aerobic processes
-
- 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
- C02F3/28—Anaerobic digestion processes
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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to the technical field of wastewater treatment, in particular to a device and a method for treating alkaline wastewater. The device is characterized by being provided with an aeration pond, a filter pond, an anaerobic microorganism treating pond and an aerobic microorganism treating pond, wherein the bottom part of the aeration pond is provided with an aeration pipe; the aeration pipe comprises an aeration coiled pipe which is connected with an external carbon dioxide gas cylinder; an aeration hole is formed in the aeration coiled pipe; a water inlet of the aeration pond is provided with a filter grating which is used for filtering floating sundries in wastewater; a liquid outlet is also formed in the aeration pond; the inner wall of the filter pond is provided with a slow descent slope; a water inlet of the filter pond is connected with the liquid outlet of the aeration pond through a pipeline; a water outlet of the filter pond is connected with a water inlet of the anaerobic microorganism treating pond; the anaerobic microorganism treating pond is provided with an anaerobic reactor; a shell of the anaerobic reactor is respectively provided with a waste gas collecting zone, a three-phase separating zone and an anaerobic reaction zone from top to bottom; the waste gas collecting zone is provided with an exhaust pipe; the anaerobic reaction zone is internally filled with anaerobic sludge particulates.
Description
Technical field:
The present invention relates to technical field of sewage, specifically a kind of alkaline waste water treatment unit and method.
Background technology:
Coal fired power generation factory is in generating process, and burn a large amount of coal, produces the flyash of a great deal of simultaneously. Electricity power enterprise generally adopts the method for Hydraulic transportation, flyash and water are made certain density slip (being also namely ash water), pass through slurry pump, it is pumped to storage ash field, ash water ash field through natural subsidence, completing being separated of flyash and water, the water of clarification enters natural water by the overflow port of ash field. Owing to flyash existing a certain amount of alkaline matter, the calcium oxide of such as free state so that the overflow water of discharge pollutes natural water in alkalescence. Method of wastewater treatment conventional at present has following two kinds: (1) acid-base neutralisation method: adopting industrial acids (sulfuric acid or hydrochloric acid) the outer draining of ash disposal area to be neutralized, the PH value making the PH value of outer draining reach national regulation is less than 9; (2) stove cigarette ash water treating method: under the admixture of flyash and ash flushing water, utilize boiler smoke to process, thus reach the effect reducing ash water ph value. Along with international schedule is constantly put in environment protection, a large amount of industrial acids that acid-base neutralisation method uses belong to high-risk product, there is certain application risk, drop into bigger simultaneously; Adopt the grey water water quality of stove cigarette ash water treating method process unstable, the qualified discharge standard of country can not be met completely.
The PH value of current sanitary sewage is generally 78, and basicity is roughly at 200��250mg/LNa2O), organic object height (COD in sanitary sewage in additionCr200��300mg/L), ammonia nitrogen (20��60mg/L), suspended substance (30��50mg/L), turbidity (120��200), also containing Al3+(about 10mg/L), SiO2(10��20mg/L), Ca2+(on a small quantity). Sanitary sewage mainly adopts biochemical process to process, and the flow process of domestic sewage processing method is complicated, fabrication cost height, it is necessary to add water conditioner (more containing aluminium), processing cost height.
Summary of the invention:
The present invention is directed in prior art the shortcoming and defect existed, it is proposed that a kind of rational in infrastructure, alkaline waste water treatment unit that processing efficiency is high and method.
The present invention can be reached by following measure:
A kind of alkaline waste water treatment unit, it is characterized in that being provided with aeration tank, filtering pond, anaerobion treating pond, aerobic microbiological treating pond, wherein it is provided with aeration tube bottom aeration tank, the aeration coil pipe that aeration tube comprises with outside dioxide bottle is connected, aeration coil pipe is provided with solarization air cap, the water inlet of aeration tank is provided with the filtering grid for the useless water float foreign material of filtering, aeration tank is also provided with liquid outlet, the inwall in filtering pond is provided with slow drop angle slope, the water-in in filtering pond is connected with the liquid outlet of aeration tank through pipeline, the water outlet in filtering pond is connected with the water inlet of anaerobion treating pond, described anaerobion treating pond is provided with anaerobic reactor, the housing of anaerobic reactor is respectively gas sampling district from top to bottom, three-phase separation area and anaerobic reaction district, gas sampling district is provided with vapor pipe, anaerobic reaction district fills anaerobic sludge particle, circulation water distributor it is provided with bottom anaerobic reaction district, circulation water distributor is connected with the water inlet pipe of lower housing portion, three-phase separation area is provided with for the swash plate separation module of precipitated impurities and is positioned at the sludge bucket of swash plate separation module bottom, the housing sidewall of three-phase separation area sets out the mouth of a river, water outlet is connected with aerobic microbiological treating pond through water pipe.
In anaerobic reactor of the present invention swash plate separation module adopt spacing between two be 110mm swash plate composition, swash plate angle of inclination is 30 45 ��.
Being provided with aeration coil pipe bottom aerobic microbiological treating pond of the present invention, aeration coil pipe is provided with solarization air cap, and aeration coil pipe is connected with outside air pump.
The invention allows for the treatment process of a kind of alkaline waste water, it is characterised in that comprise the following steps:
Step 1: alkaline waste water sends into aeration tank, aeration plate bottom aeration tank sends into carbonic acid gas in a large number by outside dioxide bottle, continue aeration 20 40h, the alkaline matter in carbon dioxide and waste water is reacted, form precipitation or be dissolved in the neutral substance of water;
Step 2: the waste water after Air Exposure enters filtering pond, carries out sedimentation and filtration, and the waste water after filtration is admitted to anaerobic reactor;
Step 3: the organic waste in waste water are decomposed by the anaerobion in anaerobic reactor, decompose the vapor pipe discharge that the gas produced is connected along gas sampling district with hull outside, the water outlet of waste water after process in three-phase separation area is sent, in the process of drainage exhaust, anaerobic sludge particle entrained by gas-liquid mixture, through inclined plate sedimentation, sends into anaerobic reaction district after flowing into sludge bucket;
Step 4: the waste water discharged through anaerobic reactor is sent into aerobic microbiological treating pond again, and under the effect of aerobic microbiological, the objectionable impurities in waste water is decomposed further so that it is finally meet emission standard.
The present invention compared with prior art, completes traditional acid-base neutralisation step by carbonic acid gas, does not add the toxic chemical substance easily producing secondary pollution in treating processes in waste water, has the significant advantages such as rational in infrastructure, easy to operate.
Accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation of the present invention.
Reference numeral: aeration tank 1, filtering pond 2, anaerobion treating pond 3, aerobic microbiological treating pond 4, dioxide bottle 5, gas sampling district 6, three-phase separation area 7, anaerobic reaction district 8.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, the present invention proposes a kind of alkaline waste water treatment unit, it is characterized in that being provided with aeration tank 1, filtering pond 2, anaerobion treating pond 3, aerobic microbiological treating pond 4, wherein it is provided with aeration tube bottom aeration tank 1, the aeration coil pipe that aeration tube comprises with outside carbon dioxide gas is connected, aeration coil pipe is provided with solarization air cap, the water inlet of aeration tank 1 is provided with the filtering grid for the useless water float foreign material of filtering, aeration tank 1 is also provided with liquid outlet, the inwall in filtering pond 2 is provided with slow drop angle slope, the water-in in filtering pond 2 is connected with the liquid outlet of aeration tank through pipeline, the water outlet in filtering pond 2 is connected with the water inlet of anaerobion treating pond, described anaerobion treating pond 3 is provided with anaerobic reactor, the housing of anaerobic reactor is respectively gas sampling district 6 from top to bottom, three-phase separation area 7 and anaerobic reaction district 8, gas sampling district 6 is provided with vapor pipe, anaerobic reaction district 8 fills anaerobic sludge particle, circulation water distributor it is provided with bottom anaerobic reaction district, circulation water distributor is connected with the water inlet pipe of lower housing portion, three-phase separation area 7 is provided with for the swash plate separation module of precipitated impurities and is positioned at the sludge bucket of swash plate separation module bottom, the housing sidewall of three-phase separation area 7 sets out the mouth of a river, water outlet is connected with aerobic microbiological treating pond through water pipe.
In anaerobic reactor of the present invention swash plate separation module adopt spacing between two be 110mm swash plate composition, swash plate angle of inclination is 30 45 ��.
Being provided with aeration coil pipe bottom aerobic microbiological treating pond 4 of the present invention, aeration coil pipe is provided with solarization air cap, and aeration coil pipe is connected with outside air pump.
The invention allows for the treatment process of a kind of alkaline waste water, it is characterised in that comprise the following steps:
Step 1: alkaline waste water sends into aeration tank, aeration plate bottom aeration tank sends into carbonic acid gas in a large number by outside dioxide bottle, continue aeration 20 40h, the alkaline matter in carbon dioxide and waste water is reacted, form precipitation or be dissolved in the neutral substance of water;
Step 2: the waste water after Air Exposure enters filtering pond, carries out sedimentation and filtration, and the waste water after filtration is admitted to anaerobic reactor;
Step 3: the organic waste in waste water are decomposed by the anaerobion in anaerobic reactor, decompose the vapor pipe discharge that the gas produced is connected along gas sampling district with hull outside, the water outlet of waste water after process in three-phase separation area is sent, in the process of drainage exhaust, anaerobic sludge particle entrained by gas-liquid mixture, through inclined plate sedimentation, sends into anaerobic reaction district after flowing into sludge bucket;
Step 4: the waste water discharged through anaerobic reactor is sent into aerobic microbiological treating pond again, and under the effect of aerobic microbiological, the objectionable impurities in waste water is decomposed further so that it is finally meet emission standard.
The present invention compared with prior art, completes traditional acid-base neutralisation step by carbonic acid gas, does not add the toxic chemical substance easily producing secondary pollution in treating processes in waste water, has the significant advantages such as rational in infrastructure, easy to operate.
Claims (4)
1. an alkaline waste water treatment unit, it is characterized in that being provided with aeration tank, filtering pond, anaerobion treating pond, aerobic microbiological treating pond, wherein it is provided with aeration tube bottom aeration tank, the aeration coil pipe that aeration tube comprises with outside dioxide bottle is connected, aeration coil pipe is provided with solarization air cap, the water inlet of aeration tank is provided with the filtering grid for the useless water float foreign material of filtering, aeration tank is also provided with liquid outlet, the inwall in filtering pond is provided with slow drop angle slope, the water-in in filtering pond is connected with the liquid outlet of aeration tank through pipeline, the water outlet in filtering pond is connected with the water inlet of anaerobion treating pond, described anaerobion treating pond is provided with anaerobic reactor, the housing of anaerobic reactor is respectively gas sampling district from top to bottom, three-phase separation area and anaerobic reaction district, gas sampling district is provided with vapor pipe, anaerobic reaction district fills anaerobic sludge particle, circulation water distributor it is provided with bottom anaerobic reaction district, circulation water distributor is connected with the water inlet pipe of lower housing portion, three-phase separation area is provided with for the swash plate separation module of precipitated impurities and is positioned at the sludge bucket of swash plate separation module bottom, the housing sidewall of three-phase separation area sets out the mouth of a river, water outlet is connected with aerobic microbiological treating pond through water pipe.
2. a kind of alkaline waste water treatment unit according to claim 1, it is characterised in that in described anaerobic reactor, swash plate separation module adopts spacing to be between two the swash plate composition of 110mm, and swash plate angle of inclination is 30 45 ��.
3. a kind of alkaline waste water treatment unit according to claim 1, it is characterised in that being provided with aeration coil pipe bottom described aerobic microbiological treating pond, aeration coil pipe is provided with solarization air cap, and aeration coil pipe is connected with outside air pump.
4. the treatment process of an alkaline waste water, it is characterised in that comprise the following steps:
Step 1: alkaline waste water sends into aeration tank, aeration plate bottom aeration tank sends into carbonic acid gas in a large number by outside dioxide bottle, continue aeration 20 40h, the alkaline matter in carbon dioxide and waste water is reacted, form precipitation or be dissolved in the neutral substance of water;
Step 2: the waste water after Air Exposure enters filtering pond, carries out sedimentation and filtration, and the waste water after filtration is admitted to anaerobic reactor;
Step 3: the organic waste in waste water are decomposed by the anaerobion in anaerobic reactor, decompose the vapor pipe discharge that the gas produced is connected along gas sampling district with hull outside, the water outlet of waste water after process in three-phase separation area is sent, in the process of drainage exhaust, anaerobic sludge particle entrained by gas-liquid mixture, through inclined plate sedimentation, sends into anaerobic reaction district after flowing into sludge bucket;
Step 4: the waste water discharged through anaerobic reactor is sent into aerobic microbiological treating pond again, and under the effect of aerobic microbiological, the objectionable impurities in waste water is decomposed further so that it is finally meet emission standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030544.3A CN105645672A (en) | 2015-12-31 | 2015-12-31 | Device and method for treating alkaline wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030544.3A CN105645672A (en) | 2015-12-31 | 2015-12-31 | Device and method for treating alkaline wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105645672A true CN105645672A (en) | 2016-06-08 |
Family
ID=56490247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511030544.3A Pending CN105645672A (en) | 2015-12-31 | 2015-12-31 | Device and method for treating alkaline wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105645672A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110615517A (en) * | 2019-09-07 | 2019-12-27 | 山东九思新材料科技有限责任公司 | Alkaline silicon washing alkaline sewage treatment device and use method thereof |
| TWI825263B (en) * | 2019-02-05 | 2023-12-11 | 日商迪思科股份有限公司 | Alkaline waste liquid neutralization device |
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| US20070193949A1 (en) * | 2006-02-17 | 2007-08-23 | Industrial Technology Research Institute | System and method for treating carbon, nitrogen, phosphorous containing wastewater |
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| CN110615517A (en) * | 2019-09-07 | 2019-12-27 | 山东九思新材料科技有限责任公司 | Alkaline silicon washing alkaline sewage treatment device and use method thereof |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160608 |