CN111533307A - Method for treating garbage penetrating fluid - Google Patents
Method for treating garbage penetrating fluid Download PDFInfo
- Publication number
- CN111533307A CN111533307A CN202010386653.3A CN202010386653A CN111533307A CN 111533307 A CN111533307 A CN 111533307A CN 202010386653 A CN202010386653 A CN 202010386653A CN 111533307 A CN111533307 A CN 111533307A
- Authority
- CN
- China
- Prior art keywords
- penetrating fluid
- garbage penetrating
- treating
- dtro membrane
- membrane
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 42
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000012528 membrane Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000002351 wastewater Substances 0.000 claims abstract description 25
- 239000008394 flocculating agent Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000004576 sand Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000005374 membrane filtration Methods 0.000 claims abstract description 4
- 238000009287 sand filtration Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000002699 waste material Substances 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 8
- 239000012466 permeate Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000011085 pressure filtration Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000006004 Quartz sand Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a method for treating garbage penetrating fluid, which comprises the following steps: (1) adding a flocculating agent into the garbage penetrating fluid to be treated to accumulate and settle suspended particles in the garbage penetrating fluid; (2) stirring the garbage penetrating fluid added with the flocculating agent and standing for 1-3 hours; (3) conveying the garbage penetrating fluid treated in the step (2) to a filter press for filter pressing to enable waste water in the garbage penetrating fluid to seep out; (4) conveying the wastewater seeped in the step (3) to a sand filter for sand filtration; (5) and (5) conveying the wastewater treated in the step (4) to a DTRO membrane for membrane filtration to obtain a discharge liquid meeting the discharge standard. According to the method, the flocculant is added to enable suspended particles in the garbage penetrating fluid to be accumulated and settled, so that the purpose of solid-liquid separation is achieved, impurities are further intercepted through the cooperation of the pressure filter, the sand filter and the DTRO membrane, the hardness is reduced, the waste water meeting the discharge standard is obtained, and the damage to the environment is avoided.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to a method for treating garbage penetrating fluid.
Background
The garbage penetrating fluid is also called garbage percolating water, is high-concentration organic wastewater formed by extrusion of garbage in the stacking or landfill process and decomposition of the garbage, and has abnormally complex water quality and high pollutant concentration due to the mixed collection mode of the garbage in China. If the garbage penetrating fluid is directly discharged to the external environment, the environment is greatly harmed.
Disclosure of Invention
The invention aims to provide a method for treating garbage penetrating fluid, which can effectively carry out solid-liquid separation on the garbage penetrating fluid to obtain liquid wastewater, further remove impurities in the wastewater, reduce the hardness of the wastewater, obtain the wastewater meeting the discharge standard and avoid the damage to the environment.
In order to achieve the purpose, the invention adopts the technical scheme that:
a process for treating a landfill permeate, comprising the steps of:
(1) adding a flocculating agent into the waste penetrating fluid to be treated to accumulate and settle suspended particles in the waste penetrating fluid;
(2) stirring and standing the garbage penetrating fluid added with the flocculating agent;
(3) conveying the garbage penetrating fluid treated in the step (2) to a filter press for filter pressing to enable waste water in the garbage penetrating fluid to seep out;
(4) conveying the wastewater seeped in the step (3) to a sand filter for sand filtration;
(5) and (4) conveying the wastewater treated in the step (4) to a DTRO membrane for membrane filtration to obtain a discharge liquid meeting the discharge standard.
Preferably, in the step (3), the residue left after the garbage penetrating fluid is subjected to pressure filtration is discharged into a residue collecting barrel.
Preferably, the method further comprises the step of:
(6) and introducing clean water into the DTRO membrane, so that the clean water flows in the DTRO membrane, and ejecting out the concentrated waste liquid remained in the DTRO membrane.
Further preferably, the method further comprises the step of:
(7) and preparing and heating cleaning liquid, introducing the heated cleaning liquid into the DTRO membrane to clean the DTRO membrane, discharging the cleaning liquid after the cleaning is finished, and then introducing clean water into the DTRO membrane again and discharging the clean water.
Still more preferably, the heating temperature of the cleaning liquid is 40 ℃.
Still further preferably, in the step (7), the cleaning time of the cleaning liquid is 35 minutes.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the method for treating the garbage penetrating fluid disclosed by the invention has the advantages that suspended particles in the garbage penetrating fluid are accumulated and settled by adding the flocculating agent, the purpose of solid-liquid separation is realized, the sludge and the wastewater in the garbage penetrating fluid are further separated by the pressure filter, and finally, the impurities are further intercepted by matching the sand filter with the DTRO membrane, so that the hardness is reduced, the wastewater meeting the discharge standard is obtained, and the damage to the environment is avoided.
Detailed Description
The technical solution of the present invention is further illustrated below with reference to specific examples.
The invention relates to an improvement of a treatment method of garbage penetrating fluid, and provides a novel method for treating the garbage penetrating fluid. Wherein the garbage penetrating fluid before treatment is a stock solution with COD7000 → 1000O and PH8.5, and the effluent quality of the treated waste liquid is that the COD, BOD, ammonia nitrogen and total phosphorus are discharged within three levels, and the PH is about 7.
Specifically, the present embodiment discloses a method for treating a waste leachate, which comprises the following steps:
(1) adding a flocculating agent into the garbage penetrating fluid to be treated to accumulate and settle suspended particles in the garbage penetrating fluid. By adding the flocculating agent, the suspended particles in the garbage penetrating fluid are gathered and enlarged to form floccules, thereby accelerating the coagulation of the particles and achieving the aim of solid-liquid separation.
(2) Stirring the garbage penetrating fluid added with the flocculating agent and standing for 1-3 hours. The solid particles are precipitated at the bottom of the landfill leachate by stirring and standing.
(3) And (3) conveying the garbage penetrating fluid treated in the step (2) to a filter press for filter pressing, so that the waste water in the garbage penetrating fluid is leaked out. The garbage penetrating fluid after solid-liquid separation is subjected to pressure filtration through a pressure filter, the garbage penetrating fluid sequentially passes through a press roll under the driving of a filter belt of the pressure filter, a pressure gradient from small to large is formed under the tension of the filter belt, the pressing force applied to the garbage penetrating fluid is continuously increased, and the waste water is gradually seeped out. And after the waste water seeps out, discharging the residue left after the garbage penetrating fluid is subjected to pressure filtration by a pressure filter into a residue collection barrel.
(4) And (4) conveying the wastewater seeped out in the step (3) to a sand filter for sand filtration. The quartz sand is used as a filter medium, when water flows through a quartz sand filter layer, partial solid suspended substances in the water are intercepted at small pores formed by an upper-layer filter material, meanwhile, overlapping and bridging actions occur among the intercepted suspended substances, a layer of thin film is formed on the surface of the filter layer, the suspended substances in the water are continuously filtered, and meanwhile, the intercepted suspended substances are mutually adhered to flocs, so that the water quality is further purified. Through the cooperation of flocculating agent and sand filter, can effectually hold back the suspended substance who removes in the waste water.
(5) And (5) conveying the wastewater treated in the step (4) to a DTRO membrane for membrane filtration to obtain a discharge liquid meeting the discharge standard. The DTRO membrane has the characteristics of good pollution resistance, high effluent quality and stable separation performance, and can well reduce the hardness of the wastewater.
(6) And (3) introducing clean water into the DTRO membrane, so that the clean water flows in the DTRO membrane, and ejecting out the concentrated waste liquid remained in the DTRO membrane. Through carrying out the concentrated processing in top to the DTRO membrane, remaining concentrated waste liquid in can effectual discharge DTRO membrane avoids remaining waste liquid to corrode the DTRO membrane, has prolonged the membrane life-span.
(7) And preparing a cleaning solution, heating to 40 ℃, introducing the heated cleaning solution into the DTRO membrane to clean the DTRO membrane, wherein the cleaning time is 35 minutes. And (4) discharging the cleaning solution after the cleaning is finished, and then introducing clean water into the DTRO membrane again and discharging. And after the top concentration, the cleaning solution is used for cleaning the DTRO membrane again, and then clear water is introduced for washing, so that residues in the membrane are thoroughly removed.
In the embodiment, the water treatment method is simple and convenient to operate, can enable the wastewater to meet the discharge standard, and avoids the damage to the environment.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (6)
1. A method for treating a landfill permeate, comprising: which comprises the following steps:
(1) adding a flocculating agent into the waste penetrating fluid to be treated to accumulate and settle suspended particles in the waste penetrating fluid;
(2) stirring and standing the garbage penetrating fluid added with the flocculating agent;
(3) conveying the garbage penetrating fluid treated in the step (2) to a filter press for filter pressing to enable waste water in the garbage penetrating fluid to seep out;
(4) conveying the wastewater seeped in the step (3) to a sand filter for sand filtration;
(5) and (4) conveying the wastewater treated in the step (4) to a DTRO membrane for membrane filtration to obtain a discharge liquid meeting the discharge standard.
2. A process for treating a landfill permeate according to claim 1, wherein: and (3) discharging the residues left after the garbage penetrating fluid is subjected to pressure filtration to a residue collecting barrel.
3. A process for treating a landfill permeate according to claim 1, wherein: the method further comprises the steps of:
(6) and introducing clean water into the DTRO membrane, so that the clean water flows in the DTRO membrane, and ejecting out the concentrated waste liquid remained in the DTRO membrane.
4. A method for treating a landfill permeate according to claim 3, wherein: the method further comprises the steps of:
(7) and preparing and heating cleaning liquid, introducing the heated cleaning liquid into the DTRO membrane to clean the DTRO membrane, discharging the cleaning liquid after the cleaning is finished, and then introducing clean water into the DTRO membrane again and discharging the clean water.
5. A process for treating a landfill permeate according to claim 4, wherein: the heating temperature of the cleaning liquid is 40 ℃.
6. A process for treating a landfill permeate according to claim 4, wherein: in the step (7), the cleaning time of the cleaning liquid is 35 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010386653.3A CN111533307A (en) | 2020-05-09 | 2020-05-09 | Method for treating garbage penetrating fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010386653.3A CN111533307A (en) | 2020-05-09 | 2020-05-09 | Method for treating garbage penetrating fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111533307A true CN111533307A (en) | 2020-08-14 |
Family
ID=71968733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010386653.3A Pending CN111533307A (en) | 2020-05-09 | 2020-05-09 | Method for treating garbage penetrating fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111533307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112079496A (en) * | 2020-09-14 | 2020-12-15 | 安徽清扬水处理设备科技有限公司 | Method for treating landfill leachate of garbage transfer station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207143028U (en) * | 2017-05-02 | 2018-03-27 | 郑州绿清环保科技有限公司 | A kind of refuse leachate processing equipment |
| CN208055089U (en) * | 2018-02-10 | 2018-11-06 | 北京合众清源环境科技有限公司 | A kind of mobile garbage percolate emergency processing equipment |
| CN108975641A (en) * | 2018-09-27 | 2018-12-11 | 山东理工大学 | A kind of processing method of rubbish leachate |
-
2020
- 2020-05-09 CN CN202010386653.3A patent/CN111533307A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207143028U (en) * | 2017-05-02 | 2018-03-27 | 郑州绿清环保科技有限公司 | A kind of refuse leachate processing equipment |
| CN208055089U (en) * | 2018-02-10 | 2018-11-06 | 北京合众清源环境科技有限公司 | A kind of mobile garbage percolate emergency processing equipment |
| CN108975641A (en) * | 2018-09-27 | 2018-12-11 | 山东理工大学 | A kind of processing method of rubbish leachate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112079496A (en) * | 2020-09-14 | 2020-12-15 | 安徽清扬水处理设备科技有限公司 | Method for treating landfill leachate of garbage transfer station |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20200814 |