CN105600948A - Method for enhancing adsorption of concrete on organic pollutants by means of biological activation and reuse of sludge in water treatment - Google Patents
Method for enhancing adsorption of concrete on organic pollutants by means of biological activation and reuse of sludge in water treatment Download PDFInfo
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- CN105600948A CN105600948A CN201610141950.5A CN201610141950A CN105600948A CN 105600948 A CN105600948 A CN 105600948A CN 201610141950 A CN201610141950 A CN 201610141950A CN 105600948 A CN105600948 A CN 105600948A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000010802 sludge Substances 0.000 title claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 title abstract description 4
- 239000002957 persistent organic pollutant Substances 0.000 title abstract description 3
- 230000036782 biological activation Effects 0.000 title abstract 3
- 230000002708 enhancing effect Effects 0.000 title abstract 2
- 238000004062 sedimentation Methods 0.000 claims abstract description 8
- 230000004913 activation Effects 0.000 claims description 15
- 238000005345 coagulation Methods 0.000 claims description 15
- 230000015271 coagulation Effects 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000000701 coagulant Substances 0.000 claims description 6
- 238000005189 flocculation Methods 0.000 claims description 6
- 230000016615 flocculation Effects 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000005842 biochemical reaction Methods 0.000 claims description 3
- 230000003203 everyday effect Effects 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 239000005416 organic matter Substances 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 241000195493 Cryptophyta Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000035943 smell Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000186046 Actinomyces Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/36—Biological material, e.g. enzymes or ATP
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a method for enhancing adsorption of concrete on organic pollutants by means of biological activation and reuse of sludge in water treatment and belong to the technical field of water supply treatment. Part of sludge in a sedimentation pond is subjected to biological activation, organic matter adsorbed by the sludge is degraded and removed, the sludge is activated and reused, the activated sludge flows back and participates in concrete enhancement, micro-pollutants in water are processed through the adsorption, biological degradation and biological fluctuation effects of the activated sludge, loads of conventional treatment and subsequent advanced treatment are greatly relieved, and secondary pollution is not caused to the environment.
Description
Technical field
The method that the present invention relates to body refuse bioactivation recycling enhanced coagulation absorption organic pollution in a kind of water treatment, belongs to water-treatment technology field.
Background technology
Since reform and opening-up, the industry of China has obtained swift and violent development, but has also brought a series of environmental problem, especially water pollution problems more outstanding simultaneously. Sanitary sewage and industrial and agricultural wastewater constantly flow among lake and river, cause the concentration of organic matter and N in water, P element constantly to raise, algea and bacteria amount reproduction. The amount reproduction of algae can be secreted arene and cause color substance and the smelly element of soil and wait and cause stink substance, and dead alga cells and actinomyces also can produce unpleasant fishlike smell and the smell of rotten egg simultaneously, have brought very large difficulty to the purification of water quality. Experimental study both domestic and external and actual production result show, conventional drinking water treatment technique is difficult to reach people for water quality requirement, can only remove 15% and 25% of arene material in water, the smelly plain material of soil through traditional coagulation, precipitation, filtration, sterilization process, the removal effect of colourity and stink is unsatisfactory.
Biological pre-treatment process can be by means of the metabolic activity of micropopulation, removes in water organic matter, ammonia nitrogen and smells taste material etc. The problems such as but conventional biofilter and biological contact oxidation pond etc., exist source water organic loading low at present, starts slowly, and efficiency is low, and treatment effect is not obvious, in water factory's technique, are difficult to the advantage function of performance biological pre-treatment process.
Summary of the invention
Not good for organic pollution treatment effect in the common coagulants clean water treatment process existing in prior art, operating cost is high, and conventional Biological Pretreatment the problem such as is difficult to apply in Practical Project, the invention provides the method for body refuse bioactivation recycling enhanced coagulation absorption organic pollution in a kind of water treatment. The method is utilized the higher feature of water treatment plant's sedimentation basin body refuse organic concentration, adopt the method for bioactivation body refuse, and the body refuse after activation is added to the coagulation stage again participates in the process such as enhanced coagulation, biological adsorption and biodegradation, degraded water body is smelt taste and organic matter etc., improve smelling the removal effect of taste, organic substance, realize resource reutilization simultaneously.
The present invention is by the following technical solutions:
In water treatment, a method for body refuse bioactivation recycling enhanced coagulation absorption organic pollution, is characterized in that, it comprises the following steps:
1) body refuse is cultivated activation stage: get water treatment plant's sedimentation basin bed mud and drop into bioactivation reaction tank as primary sludge, be 100:5:1 for ensureing that the carrying out of biochemical reaction need be controlled the wherein ratio of nutriment C:N:P, control reaction tank air demand 10L/min, pH is 6.5 ~ 7.5, temperature is 12 ~ 19 DEG C, and dissolved oxygen control is 2mg/L, vexed exposing to the sun after 3-5d, quiet heavy, effluent, then injects the fresh spoil disposal water identical with displacement; Repeatedly carry out for twice follow-up every day vexedly exposing to the sun, quiet heavy, draining and water inlet process, operation 4-21 days continuously, after determining that mud 30min settling ratio, sludge concentration and supernatant C OD clearance keep stablizing, now body refuse bioactivation process completes substantially, and activation body refuse is cultivated successfully;
2) body refuse after activation is carried out to concentration and make MLSS reach 8.5g/L, be then added in advance in former water and carry out Biological Pretreatment, control hydraulic detention time, fully mix, adsorb, degraded, then dosing coagulant, flocculation aid, complete enhanced coagulation, precipitation process.
In described step 1), mud 30min settling ratio reaches 10%.
In described step 1), sludge concentration reaches 3000-4500mg/L.
In described step 1), supernatant C OD clearance reaches 60%.
Described step 2) in hydraulic detention time be 5-10min.
Described step 2) in the coagulant that adds be PAC, dosage is 15mg/L.
Described step 2) in the flocculation aid that adds be PAM, dosage is 0.06mg/L.
It is starch that mesophytization reaction nutriment of the present invention regulates and controls carbon source used, and nitrogenous source is carbonic hydroammonium.
The invention has the beneficial effects as follows:
(1) the present invention has good removal effect for organic removal in the water of micro-polluted water storehouse, can effectively remove and in water, cause look, cause stink substance, to CODMn, ammonia nitrogen, UV254, algae sum and stink grade clearance reach respectively 37.25%, 17.79%, 18.18%, 40.98% and 75%.
(2) sedimentation basin part body refuse is carried out bioactivation by the present invention, the removal that is degraded of the organic matter of body refuse absorption, body refuse is activated, to activate sludge backflow and participate in enhanced coagulation, utilize absorption, biodegradation, the biological flocculation of activation body refuse, organic pollutants will be processed, it has alleviated the load of conventional treatment and follow-up advanced treating greatly, can not cause secondary pollution to environment, reduce operating cost, improve water source purifying effect.
Brief description of the drawings
Fig. 1 is supernatant C OD temporal evolution curve in culturing sludge.
Fig. 2 is activation body refuse throwing amount removal CODMn, ammonia nitrogen and UV254Influential effect.
Fig. 3 is that activation body refuse throwing amount is removed the influential effect of smelling taste grade.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1
Body refuse is cultivated activation
Get sedimentation basin body refuse and drop into reaction tank, the mean value that records 5 days indexs is respectively CODCrFor 200mg/L, BOD5For 24mg/L, ammonia nitrogen is 0.2113mg/L, and total phosphorus is 0.376mg/L, and SS is 998mg/L. For ensureing that biochemical treatment normally moves, nutriment reaches C:N:P=100:5:1. Nitrogenous source is obviously not enough, need add. It is carbonic hydroammonium that this test adopts nitrogenous source.
Initial stage (1 ~ 2d): reaction unit volume 20L, will in device, inject sludge from sedimentation tank water, calculate air demand and be about 10L/min, to control PH and be about 6.5 ~ 7.5, temperature is about 12 ~ 19 DEG C, more than dissolved oxygen reaches 2mg/L. For ensureing that biochemical reaction normally carries out, add carbonic hydroammonium to supplement nitrogenous source, start vexed exposing to the sun. Mixed liquor COD after 1dCrFor 464mg/L.
Mid-term (3 ~ 5d): be to increase sludge concentration, add the sedimentation basin body refuse of 1.5L in device, add 10g starch with supplementary carbon source. Vexed exposing to the sun, after 2d, mixed liquor COD is 1124mg/L. Continue vexed exposing to the sun, after 2d, COD is 2632mg/L.
Later stage (6 ~ 21d): stop aeration, quiet heavy 30min ~ 60min, discharges the upper strata waste water of about 5L, and inject the fresh spoil disposal water of same amount. Repeatedly carry out for twice every day vexedly exposing to the sun, quiet heavy and three processes of water inlet, and supplement nitrogenous source at every turn, operation 16 days continuously, mud 30min settling ratio reaches 10% left and right, sludge concentration reaches about 4237mg/L, and supernatant C OD clearance reaches 60%, and keeps stable, show that now body refuse bioactivation process completes substantially, culturing sludge success.
Body refuse after activation is carried out to concentration and make MLSS reach 8.5g/L, be then added in advance in former water and carry out Biological Pretreatment, control hydraulic detention time, fully mix, adsorb, degraded, then dosing coagulant, flocculation aid, complete enhanced coagulation, precipitation process.
Test case
Body refuse after made embodiment 1 activation is carried out to concentration (MLSS ≈ 8.5g/L). Get 6 × 1L and test former water in beaker, add respectively activation body refuse 0 ~ 425mg/L, adopt stirring instrument to mix with 200r/min and be oxidized 3min, the coagulation stage adds PAC15mg/L, add PAM0.06mg/L, reaction time 5-10min, tests in six mixers. Specific experiment result as Figure 2-3. From above-mentioned figure, can find out, compared with the former coagulation water purification of conventional micro-polluted water, the present invention uses activation body refuse enhanced coagulation to process micro-polluted water storehouse has good removal effect to organic removal wherein, can effectively remove and in water, cause look, cause stink substance, to CODMn, ammonia nitrogen, UV254, algae sum, stink grade clearance be respectively 37.25%, 17.79%, 18.18%, 40.98% and 75%.
Claims (7)
1. a method for body refuse bioactivation recycling enhanced coagulation absorption organic pollution in water treatment, is characterized in that, it comprises the following steps:
1) body refuse is cultivated activation stage: get and adopt water treatment plant's sedimentation basin bed mud to drop into bioactivation reaction tank as primary sludge, be 100:5:1 for ensureing that the carrying out of biochemical reaction need be controlled the wherein ratio of nutriment C:N:P, control reaction tank air demand 10L/min, pH is 6.5 ~ 7.5, temperature is 12 ~ 19 DEG C, and dissolved oxygen control is 2mg/L, vexed exposing to the sun after 3-5d, quiet heavy, effluent, then injects the fresh spoil disposal water identical with displacement; Repeatedly carry out for twice follow-up every day vexedly exposing to the sun, quiet heavy, draining and water inlet process, operation 4-21 days continuously, after determining that mud 30min settling ratio, sludge concentration and supernatant C OD clearance keep stablizing, now body refuse bioactivation process completes substantially, and activation body refuse is cultivated successfully;
2) body refuse after activation is carried out to concentration and make MLSS reach 8.5g/L, be then added in advance in former water and carry out Biological Pretreatment, control hydraulic detention time, fully mix, adsorb, degraded, then dosing coagulant, flocculation aid, complete enhanced coagulation, precipitation process.
2. method according to claim 1, is characterized in that, in described step 1), mud 30min settling ratio reaches 10%.
3. method according to claim 1, is characterized in that, in described step 1), sludge concentration reaches 3000-4500mg/L.
4. method according to claim 1, is characterized in that, in described step 1), supernatant C OD clearance reaches 60%.
5. method according to claim 1, is characterized in that, described step 2) in hydraulic detention time be 5-10min.
6. method according to claim 1, is characterized in that, described step 2) in the coagulant that adds be PAC, dosage is 15mg/L.
7. method according to claim 1, is characterized in that, described step 2) in the flocculation aid that adds be PAM, dosage is 0.06mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141950.5A CN105600948B (en) | 2016-03-11 | 2016-03-11 | A kind of method that body refuse bioactivation recycles enhanced coagulation absorption organic pollution in water process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610141950.5A CN105600948B (en) | 2016-03-11 | 2016-03-11 | A kind of method that body refuse bioactivation recycles enhanced coagulation absorption organic pollution in water process |
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| Publication Number | Publication Date |
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| CN105600948A true CN105600948A (en) | 2016-05-25 |
| CN105600948B CN105600948B (en) | 2018-09-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847661A (en) * | 2020-07-09 | 2020-10-30 | 广东省源天工程有限公司 | Activated sludge inoculation and bacterium cultivation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111847661B (en) * | 2020-07-09 | 2021-03-02 | 广东省源天工程有限公司 | Activated sludge inoculation and bacterium cultivation method |
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