CN115784421A - Method for promoting aerobic sludge granulation by adding Fenton iron mud - Google Patents
Method for promoting aerobic sludge granulation by adding Fenton iron mud Download PDFInfo
- Publication number
- CN115784421A CN115784421A CN202211281328.6A CN202211281328A CN115784421A CN 115784421 A CN115784421 A CN 115784421A CN 202211281328 A CN202211281328 A CN 202211281328A CN 115784421 A CN115784421 A CN 115784421A
- Authority
- CN
- China
- Prior art keywords
- sludge
- biochemical unit
- fenton iron
- granulation
- drainage
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 239000010802 sludge Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 51
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 46
- 230000003179 granulation Effects 0.000 title claims abstract description 23
- 238000005469 granulation Methods 0.000 title claims abstract description 23
- 230000001737 promoting effect Effects 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000012279 drainage procedure Methods 0.000 claims abstract description 6
- 238000001556 precipitation Methods 0.000 claims abstract description 6
- 239000003657 drainage water Substances 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims description 21
- 238000005273 aeration Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 3
- 229910001448 ferrous ion Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229910001447 ferric ion Inorganic materials 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention belongs to the technical field of sludge treatment, and discloses a method for promoting granulation of aerobic sludge by adding Fenton iron mud. The method comprises the following steps: s1: the Fenton iron mud is added into a biochemical unit and mixed with floc sludge in the biochemical unit; s2: the biochemical unit is operated in a circulating cycle of water inlet reaction, precipitation and drainage procedures, the step S1 is repeated for a plurality of times, and the BOD increment in the biochemical unit in the water inlet reaction procedure in a single cycle is not less than 50mg/L, and the BOD content of the drainage water in the drainage procedure is less than 5mg/L. The method of the invention can solve the problem of the destination of the Fenton iron mud generated in the Fenton oxidation unit, and can also realize the purpose of shortening the starting time of the aerobic granular sludge technology, thereby reducing the waste treatment cost and realizing the high-efficiency treatment of the wastewater.
Description
Technical Field
The invention belongs to the technical field of sludge treatment, and particularly relates to a method for promoting aerobic sludge granulation by adding Fenton iron mud.
Background
In 1893, the chemist Fenton HJ found hydrogen peroxide (H) 2 O 2 ) The mixed solution of the ferrous ions and the divalent ferrous ions has strong oxidizing property, can oxidize a plurality of known organic compounds such as carboxylic acid, alcohol and ester into inorganic state, and has very remarkable oxidizing effect. In the 70 s of the 20 th century, fenton (Fenton) reagent found its place in environmental chemistry, and because of its ability to remove refractory organic pollutants, it has been widely used in the treatment of printing and dyeing wastewater, oily wastewater, phenolic wastewater, coking wastewater, nitrobenzene-containing wastewater, diphenylamine-containing wastewater, and other wastewater. However, the fenton oxidation process oxidizes ferrous iron to ferric iron during the process and produces a large amount of iron sludge during subsequent pH adjustment, which can be hazardous if not handled well: for example, land occupation; in the stacking process, the chemical reaction is carried out by blowing wind and rain to destroy the soil structure; entering the water body causes the sedimentation of the riverbed, the pollution of the water body and the like. Therefore, the treatment of fenton iron mud has become a key for restricting the popularization of fenton technology.
As one of the most promising biological technologies in wastewater treatment, the aerobic granular sludge technology has the advantages of compact structure, good sedimentation performance, high biological retention time, high organic load and toxicity resistance, synchronous denitrification and dephosphorization and the like compared with the traditional activated sludge technology. Generally, the formation of aerobic granular sludge is a complex process comprising physical, chemical and biological effects, and the mainstream thinking describes the process as a biological agglomeration phenomenon formed by the self-coagulation of microorganisms under certain hydrodynamic conditions, and the conditions which are proved to have significant positive effects on the formation of the aerobic granular sludge at present comprise the selection of pressure, organic load, addition of metal cations, addition of coagulants or inert carriers and the like. However, the long formation time and poor stability of aerobic granular sludge limit the application range.
Therefore, at present, a method for promoting aerobic sludge granulation by adding fenton iron sludge is urgently needed to be provided, the fenton iron sludge rich in iron and organic matters is used for promoting formation of aerobic granular sludge, the defect of long starting time of an aerobic granular sludge process is overcome, and effluent quality is improved.
Disclosure of Invention
The invention aims to provide a method for promoting granulation of aerobic sludge by adding Fenton iron mud aiming at the defects of the prior art. The method of the invention can solve the problem of the destination of the Fenton iron mud generated in the Fenton oxidation unit and can also realize the purpose of shortening the starting time of the aerobic granular sludge technology, thereby reducing the waste treatment cost and realizing the high-efficiency treatment of the wastewater.
In order to achieve the aim, the invention provides a method for promoting aerobic sludge granulation by adding fenton iron mud, which comprises the following steps:
s1: adding the Fenton iron mud into the biochemical unit, and mixing the Fenton iron mud with floc sludge in the biochemical unit;
s2: the biochemical unit is operated in a circulating cycle of water inlet reaction, precipitation and drainage procedures, the step S1 is repeated for a plurality of times, and the BOD increment in the biochemical unit in the water inlet reaction procedure in a single cycle is not less than 50mg/L, and the BOD content of the drainage water in the drainage procedure is less than 5mg/L.
In the invention, in the biochemical unit, fenton iron mud put into the biochemical unit can promote sludge agglomeration to form granular sludge after contacting with floc sludge. Specifically, the technical scheme of the invention is completed based on the following ideas: ferrous ions in the process of treating wastewater by the fenton oxidation method are continuously oxidized into ferric ions along with the treatment, and the ferric ions can form a large amount of iron mud in the subsequent treatment process. The fenton iron mud comprises metal ion (iron ion is the main component) hydroxide and wrapped organic matters. In the process of researching the aerobic granular sludge forming mechanism, the discovery is that in order to realize rapid granulation, metal cations, a coagulant and an inert carrier are required to be added for promoting sludge agglomeration, and meanwhile, enough organic matters in the inlet water at a biochemical stage are required to ensure a certain organic load. Therefore, it is thought that the Fenton iron sludge is added to provide metal cations, a coagulant and an inert carrier for promoting sludge agglomeration, and organic matter wrapped in the Fenton iron sludge is used for improving organic load, so that waste recycling is realized, the problem that the Fenton iron sludge generated in a Fenton oxidation unit is difficult to discharge is solved, and a link of adding a medicament in the starting stage of the aerobic granular sludge technology is omitted.
In the present invention, the "water inlet reaction-precipitation-drainage process" in step S2 is a "biological selective pressure" mechanism. The BOD increment in the biochemical unit in the water inlet reaction process in a single period is not less than 50mg/L, and the BOD content of the discharged water in the water discharging process is less than 5mg/L, which is a mechanism of substrate enrichment/shortage. The present invention uses two mechanisms to promote the formation of aerobic granular sludge. In the step S2, the step S1 is repeated for a plurality of times, namely Fenton sludge is added into the biochemical unit for a plurality of times in the operation process of the biochemical unit and is mixed with floc sludge in the biochemical unit to create a long-acting promotion mechanism, so that the stable operation of the aerobic granular sludge technology is realized.
According to the invention, the single dosage of Fenton's iron mud is preferably 0.005% -0.05% of the effective volume of the biochemical unit.
According to the present invention, the duration of the water-feeding reaction step is preferably in the range of 30min to 720min.
According to the present invention, preferably, the water-feeding reaction process comprises the steps of water feeding, stirring and aeration.
According to the present invention, preferably, the three steps of water feeding, stirring and aeration are repeated in an arbitrary combination in this order, and the number of repetitions of each step does not exceed 4.
According to the invention, the duration of the precipitation step is preferably shortened gradually from 30 to 90min to 3 to 5min.
According to the present invention, it is preferable that the duration of the draining process is in the range of 0min to 180min.
According to the present invention, it is preferable that the height of the drain in the drain process is 40 to 60% of the biochemical unit.
According to the invention, the floc sludge concentration in the biochemical unit is preferably controlled to be 2000-10000 mg/L.
According to the invention, the organic load in the biochemical unit is preferably controlled to be between 0.02 and 0.8 kgBOD/(kgMLSS d).
The technical scheme of the invention has the following beneficial effects:
the method of the invention can solve the problem of discharging Fenton iron mud generated in the Fenton oxidation unit, can recycle waste, saves the link of adding medicament in the starting stage of the aerobic granular sludge technology, effectively promotes the formation and stable operation of the aerobic granular sludge, and realizes the efficient treatment of wastewater.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 is a technical schematic diagram illustrating that fenton iron mud promotes aerobic sludge granulation in a method for promoting aerobic sludge granulation by adding fenton iron mud according to embodiment 1 of the present invention.
FIG. 2 is a diagram showing aerobic granular sludge cultivated by the method for promoting granulation of aerobic sludge by adding Fenton iron mud provided by embodiment 1 of the invention.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example 1
The embodiment provides a method for promoting aerobic sludge granulation by adding fenton iron mud, which comprises the following steps:
s1: adding the Fenton iron mud into the biochemical unit, and mixing the Fenton iron mud with floc sludge in the biochemical unit;
5000mL of floc sludge in the biochemical unit, wherein the concentration is 5000mg/L;
the effective volume of the biochemical unit is 5000mL, and the dosage of Fenton iron mud is 0.01 percent of the effective volume of the biochemical unit;
s2: the biochemical unit operates in a cycle of water inlet reaction-precipitation-drainage process, fenton iron mud with the volume of 0.01 percent of the effective volume of the biochemical unit is added into the biochemical unit for multiple times and is mixed with floc sludge in the biochemical unit, the BOD increase in the biochemical unit in the water inlet reaction process in a single period is not less than 50mg/L, and the BOD content of drainage water in the drainage process is less than 5mg/L.
The duration time of the water inlet reaction process is 300min, the water inlet reaction process comprises the steps of water inlet, stirring and aeration, and the three steps of water inlet, stirring and aeration are sequentially carried out. The influent water is landfill leachate, which is well known to those skilled in the art.
The duration time of the precipitation procedure is gradually shortened from 90min to 3min;
the duration of the drainage process is 10min. The drainage height in the drainage process is 50% of the biochemical unit.
The concentration of floc sludge in the biochemical unit is controlled to be 2000-10000 mg/L, and the organic load is controlled to be 0.1-0.4 kgBOD/(kgMLSS.d).
By the method, the total operation time of the biochemical unit in the step S2 is 400-313 min, the starting time of the aerobic granular sludge is 10 days, the stable particle maintaining time exceeds 500 days, the median diameter of the formed particles exceeds 800 μm, the technical principle of the Fenton iron mud promoting the granulation of the aerobic sludge of the embodiment is shown in figure 1, and the cultivated aerobic granular sludge is shown in figure 2.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A method for promoting aerobic sludge granulation by adding Fenton iron mud is characterized by comprising the following steps:
s1: the Fenton iron mud is added into a biochemical unit and mixed with floc sludge in the biochemical unit;
s2: the biochemical unit is operated in a circulating cycle of water inlet reaction, precipitation and drainage procedures, the step S1 is repeated for a plurality of times, and the BOD increment in the biochemical unit in the water inlet reaction procedure in a single cycle is not less than 50mg/L, and the BOD content of the drainage water in the drainage procedure is less than 5mg/L.
2. The method for adding Fenton iron sludge to promote granulation of aerobic sludge according to claim 1, wherein the single dosage of Fenton iron sludge is 0.005-0.05% of the effective volume of the biochemical unit.
3. The method for promoting aerobic sludge granulation by adding Fenton iron slime according to claim 1, wherein the duration time of the water inlet reaction process is 30-720 min.
4. The method for promoting aerobic sludge granulation by adding Fenton iron slime according to claim 1, wherein the water inlet reaction process comprises the steps of water inlet, stirring and aeration.
5. The method for promoting aerobic sludge granulation by adding Fenton iron slime according to claim 4, wherein the repeating sequence of the three steps of water feeding, stirring and aeration is combined randomly, and the repeating times of each step are not more than 4.
6. The method for promoting aerobic sludge granulation by adding fenton iron slime according to claim 1, wherein the duration time of the precipitation process is gradually shortened from 30-90 min to 3-5 min.
7. The method for promoting granulation of aerobic sludge by adding Fenton iron slime according to claim 1, wherein the duration time of the drainage process ranges from 0min to 180min.
8. The method for promoting aerobic sludge granulation by adding Fenton iron slime according to claim 1, wherein the drainage height in the drainage process is 40-60% of the biochemical unit.
9. The method for promoting aerobic sludge granulation by adding Fenton iron sludge according to claim 1, wherein the concentration of floc sludge in the biochemical unit is controlled to be 2000-10000 mg/L.
10. The method for promoting aerobic sludge granulation by adding Fenton's iron sludge according to claim 1, wherein the organic load in the biochemical unit is controlled to be 0.02-0.8 kgBOD/(kgMLSS-d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211281328.6A CN115784421A (en) | 2022-10-19 | 2022-10-19 | Method for promoting aerobic sludge granulation by adding Fenton iron mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211281328.6A CN115784421A (en) | 2022-10-19 | 2022-10-19 | Method for promoting aerobic sludge granulation by adding Fenton iron mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115784421A true CN115784421A (en) | 2023-03-14 |
Family
ID=85433271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211281328.6A Pending CN115784421A (en) | 2022-10-19 | 2022-10-19 | Method for promoting aerobic sludge granulation by adding Fenton iron mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115784421A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116534990A (en) * | 2023-06-06 | 2023-08-04 | 西安理工大学 | Method for strengthening aerobic sludge granulation by utilizing iron-rich red loam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746917A (en) * | 2008-12-19 | 2010-06-23 | 上海洁申实业有限公司 | Treatment method for organic industrial wastewater |
| CN102976568A (en) * | 2012-12-31 | 2013-03-20 | 南京大学 | Fenton oxidation-aerobic granular sludge integrated device using magnetic field and processing method of device |
| JP2016193384A (en) * | 2015-03-31 | 2016-11-17 | オルガノ株式会社 | Method for forming aerobic granule, apparatus for forming aerobic granule, wastewater treatment method, and wastewater treatment apparatus |
| CN107176777A (en) * | 2017-05-18 | 2017-09-19 | 大连理工大学 | The device and technique of a kind of utilization anaerobe processing Fenton iron mud |
| CN109095734A (en) * | 2018-09-06 | 2018-12-28 | 昆山绿威环保科技有限公司 | Fenton oxidation sludge decrement process associated with ultrasonic wave-iron-reducing bacterium |
| CN114349296A (en) * | 2022-01-17 | 2022-04-15 | 江西颖南原环能有限公司 | Comprehensive recycling treatment method for Fenton iron mud |
-
2022
- 2022-10-19 CN CN202211281328.6A patent/CN115784421A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746917A (en) * | 2008-12-19 | 2010-06-23 | 上海洁申实业有限公司 | Treatment method for organic industrial wastewater |
| CN102976568A (en) * | 2012-12-31 | 2013-03-20 | 南京大学 | Fenton oxidation-aerobic granular sludge integrated device using magnetic field and processing method of device |
| JP2016193384A (en) * | 2015-03-31 | 2016-11-17 | オルガノ株式会社 | Method for forming aerobic granule, apparatus for forming aerobic granule, wastewater treatment method, and wastewater treatment apparatus |
| CN107176777A (en) * | 2017-05-18 | 2017-09-19 | 大连理工大学 | The device and technique of a kind of utilization anaerobe processing Fenton iron mud |
| CN109095734A (en) * | 2018-09-06 | 2018-12-28 | 昆山绿威环保科技有限公司 | Fenton oxidation sludge decrement process associated with ultrasonic wave-iron-reducing bacterium |
| CN114349296A (en) * | 2022-01-17 | 2022-04-15 | 江西颖南原环能有限公司 | Comprehensive recycling treatment method for Fenton iron mud |
Non-Patent Citations (2)
| Title |
|---|
| 孙祥;黄得庆;: "化学絮凝作用对高盐废水Fenton氧化处理过程中产生污泥特性的影响研究", 广东化工, no. 12, 30 June 2013 (2013-06-30), pages 135 - 136 * |
| 管运涛, 吴晓磊, 钱易, 蒋展鹏: "生物钙法好氧污泥颗粒化条件研究", 给水排水, no. 11, 20 November 1996 (1996-11-20), pages 27 - 29 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116534990A (en) * | 2023-06-06 | 2023-08-04 | 西安理工大学 | Method for strengthening aerobic sludge granulation by utilizing iron-rich red loam |
| CN116534990B (en) * | 2023-06-06 | 2023-11-17 | 西安理工大学 | Method for strengthening aerobic sludge granulation by utilizing iron-rich red loam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107555701B (en) | Low-cost coking wastewater treatment method | |
| KR101665636B1 (en) | Wastewater pretreatment method and sewage treatment method using the pretreatment method | |
| CN103241904B (en) | Multi-point water inlet aeration anoxic-aerobic high-efficient nitrogen and phosphorus removal method | |
| CN104961305B (en) | A kind of processing method of livestock breeding wastewater anaerobic fermented liquid | |
| CN101229944A (en) | Intensified biological treatment method for high strength ammonia wastewater | |
| CN106927628A (en) | Light electrolysis-Fenton-EGSB-A/O-BCO-BAF-coagulating treatment pharmacy waste water technique | |
| CN101723538A (en) | Process for treating landfill leachate | |
| CN102583879A (en) | High-concentration integrated chemical organic wastewater treatment process | |
| CN109205954A (en) | Light electrolysis catalysis oxidation, biochemical treatment high-concentration waste hydraulic art | |
| CN106277555A (en) | The high efficiency, low cost processing method of a kind of coking chemical waste water and system | |
| CN100402441C (en) | Method for treating sewage by catalytic iron internal electrogravimetry and its filler | |
| CN101708923A (en) | Denitrifying phosphorus and nitrogen removal method for wastewater with low carbon-phosphorus ratio | |
| CN106396258A (en) | Technological method for treating coking wastewater | |
| CN105481170A (en) | Treating system and method for coking waste water | |
| CN103663875B (en) | Method for improving denitrification rate of acrylonitrile waste water | |
| CN115784421A (en) | Method for promoting aerobic sludge granulation by adding Fenton iron mud | |
| CN214218490U (en) | Landfill leachate treatment system | |
| CN113443796A (en) | Ultraviolet catalytic oxidation wastewater treatment process | |
| CN104529078A (en) | Refuse landfill leachate treatment method | |
| CN111453923A (en) | Treatment equipment and process for landfill leachate membrane concentrated solution | |
| CN114455722B (en) | Full-flow biochemical treatment and reclaimed water recycling process for ink-jet printing wastewater | |
| CN203319825U (en) | Multi-point water inlet aeration anoxia and aerobiotic efficient denitrification and phosphorus removing system | |
| CN116143352A (en) | Full-quantification combined treatment system and method for landfill leachate | |
| CN116119888A (en) | Combined treatment system and treatment method for post-concentration liquid of landfill leachate membrane | |
| CN113998848B (en) | Ammonia distillation, gas water seal, rainwater and sludge filtrate mixed wastewater treatment system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |