CN109607864A - It is a kind of based on organic tubular membrane waste water softening and remove silicon treatment process - Google Patents
It is a kind of based on organic tubular membrane waste water softening and remove silicon treatment process Download PDFInfo
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- CN109607864A CN109607864A CN201811604689.3A CN201811604689A CN109607864A CN 109607864 A CN109607864 A CN 109607864A CN 201811604689 A CN201811604689 A CN 201811604689A CN 109607864 A CN109607864 A CN 109607864A
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- organic
- water
- organic tubular
- waste water
- clear liquid
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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
- 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
- C02F1/44—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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/02—Softening water by precipitation of the hardness
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/02—Softening water by precipitation of the hardness
- C02F5/06—Softening water by precipitation of the hardness using calcium compounds
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- 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 present invention discloses a kind of waste water softening based on organic tubular membrane and except silicon treatment process, the following steps are included: waste water is promoted to raw water water collect tank by raw water pump, when raw water enters softening surge tank while softening medicament is added, coagulant and flocculant is added when entering and flocculating surge tank in raw water simultaneously, raw water is sent into organic tubular ultra-filtration membrane and carries out mud-water separation, clear liquid enters clear liquid surge tank, the dope that clear liquid is handled through organic tubular ultra-filtration membrane enters plate and frame filter press, last solid enters Treatment of Sludge link, clear liquid is back to organic tubular ultra-filtration membrane system, obtain last production water.It is characteristic of the invention that process flow is simple, occupation area of equipment is small, operating cost is low, stable water outlet, Automatic Control can be achieved, especially suitable for high rigidity, high salinity, the wastewater treatment of high organic matter, organic tubular ultra-filtration membrane has many advantages, long service life as the mud-water separation of high sludge concentration, high organic matter.
Description
Technical field
It is a kind of to utilize organic pipe applied to the softening of waste water, except silicon is handled the present invention relates to a kind of field of waste water treatment
The high rigidity of formula film, high salinity, high organic matter, the softening of silicon-containing wastewater and the technique except silicon processing, it is specifically a kind of to be based on having
The waste water of machine tubular membrane softens and removes silicon treatment process.
Background technique
With China's urbanization and it is industrialized rapidly develop, the problem of house refuse waste water and Industrial Wastewater Treatment are discharged
It becomes increasingly conspicuous, the technique of mainstream is film concentration technology at present, since hardness is high in waste water, when pretreatment is not added, works as concentration
Multiple reaches a timing, and a large amount of foulings of meeting cause membrane component to damage.Therefore in raw water into before NF/RO, it is necessary to increase the pre- place of softening
Science and engineering skill.
Landfill leachate field is there are many bio-chemical effluent excessive high hardness at present, the membrane component in subsequent film concentration process
The problem of fouling is failed.There are also in the resource reclaim of high-salt wastewater and " zero-emission " processing, also there is a large amount of structure problem.
Present softening process is mainly by sand filtration after adding softening medicament, due to the unstability of sand filtration, if cleaning is not in time, still
The problem of so will appear subsequent membrane component pollution fouling.Therefore new sofening treatment technique is needed to guarantee subsequent influent quality
Stabilization.In response to this, it is proposed that a kind of waste water softening based on organic tubular membrane and remove silicon treatment process, which adopts
With pretreatment+film filtering process flow.Successively after softening+flocculation+ultrafiltration (organic tubular ultra-filtration membrane) processing, producing water can
Advanced treating is carried out into NF or RO.As a kind of pretreating process for guaranteeing NF or RO influent quality.The production water water of the technique
Matter is stablized, and operating cost is cheap, and system automation degree is high, integration of equipments and long service life.
Summary of the invention
The purpose of the present invention is to provide a kind of, and the waste water based on organic tubular membrane softens and removes silicon treatment process, to understand
The new process certainly developed the problem of easy fouling containing hardness, silicon-containing wastewater when film is concentrated or evaporates.Technique use pretreatment+
The process flow of film filtering, handles high rigidity, high salinity, high organic matter, siliceous waste water, removes hardness and SS and silicon
Effect is obvious, invests low with operating cost.
The present invention uses a kind of organic tubular ultra-filtration membrane as end-o f-pipe -control to solve the problems, such as stable effluent quality
Device, so that the water quality of system water outlet is guaranteed.
The purpose of the present invention can be achieved through the following technical solutions:
It is a kind of based on organic tubular membrane waste water softening and remove silicon treatment process, comprising the following steps:
Step 1: waste water is promoted to raw water water collect tank by raw water pump, when raw water enters softening surge tank while being added
Soften medicament.
Step 2: coagulant and flocculant is added when entering and flocculating surge tank in the raw water that step 1 obtains simultaneously.
Step 3: the raw water that step 2 is obtained is sent into organic tubular ultra-filtration membrane and carries out mud-water separation, and clear liquid enters clear liquid
Surge tank.
Step 4: step 3 enters plate and frame filter press through the dope to be treated that organic tubular ultra-filtration membrane is isolated, into
Enter the last solid being press-filtered out in the dope of plate and frame filter press and enters Treatment of Sludge link, the clear liquid obtained through plate and frame filter press
It is back to organic tubular ultra-filtration membrane system, organic tubular ultra-filtration membrane system and plate and frame filter press carry out circulating purification, final clear liquid
Into clear liquid surge tank, last production water is obtained by clear liquid surge tank.
Further, the last producing water water quality reaches: SS≤0.5NTU, total hardness≤50mg/L, SDI≤4, and silicon≤
1mg/L。
Further, organic tubular ultra-filtration membrane is PEK, PES, PVC, PS, PP tubular ultra-filtration membrane.
Further, the coagulant includes inorganic coagulant, organic coagulants and compound coagulant.
Further, the flocculant includes inorganic flocculating agent and organic flocculant.
Further, the softening medicament includes: sodium hydroxide, calcium oxide, calcium hydroxide, calcium chloride, magnesium hydroxide, carbon
The combination of one or more of sour sodium, magnesium chloride.
Further, the raw water pH after softening medicament is added reaches 11~14.
Beneficial effects of the present invention:
1, it is characteristic of the invention that process flow is simple, occupation area of equipment is small, and operating cost is low, stable water outlet, can be real
Existing Automatic Control；
2, the present invention is especially suitable for high rigidity, high salinity, high organic matter, siliceous wastewater treatments；
3, organic tubular ultra-filtration membrane of the present invention be PEK, PES, PVC, PS, PP tubular ultra-filtration membrane, PEK, PES,
PVC, PS, PP tubular ultra-filtration membrane have the characteristics that acid and alkali-resistance, resistance to organic matter, flux is big, the cleaning frequency is long, are not necessarily to backwash, aperture
There is the different size of 5nm~0.2 μm, the mud-water separation as high sludge concentration, high organic matter there are many advantages；
4, present invention process is using pretreatment+film filtering process flow.Successively pass through softening+flocculation+ultrafiltration (organic pipe
Formula ultrafiltration membrane) after processing, produces water and can enter NF or RO and carry out advanced treating.As a kind of pre- place for guaranteeing NF or RO influent quality
Science and engineering skill.The producing water water quality of the technique is stablized, and operating cost is cheap, and system automation degree is high, integration of equipments and uses the longevity
Life length.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is a kind of waste water softening based on organic tubular membrane of the present invention and the flow chart except silicon treatment process.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
It is a kind of based on organic tubular membrane waste water softening and remove silicon treatment process, as shown in Figure 1, technique of the invention press with
Lower step carries out:
Step 1: waste water is promoted to raw water water collect tank by raw water pump, when raw water enters softening surge tank while being added
Soften medicament, this step has reached the effect of removal temporary hardness and silicon.
Step 2: being added coagulant and flocculant simultaneously when entering and flocculating surge tank for the raw water that step 1 obtains, this
Step has reached the effect of removal SS.
Step 3: the raw water that step 2 is obtained is sent into organic tubular ultra-filtration membrane and carries out mud-water separation, and clear liquid enters clear liquid
Surge tank.
Step 4: step 3 enters plate and frame filter press through the dope to be treated that organic tubular ultra-filtration membrane is isolated, into
Enter the last solid being press-filtered out in the dope of plate and frame filter press and enters Treatment of Sludge link, the clear liquid obtained through plate and frame filter press
It is back to organic tubular ultra-filtration membrane system, organic tubular ultra-filtration membrane system and plate and frame filter press carry out circulating purification, final clear liquid
Into clear liquid surge tank, last production water is obtained by clear liquid surge tank.
Organic tubular ultra-filtration membrane of the present invention is PEK, PES, PVC, PS, PP tubular ultra-filtration membrane, and step 4 is obtained
Last production water carry out detecting last producing water water quality and reach: SS≤0.5NTU, total hardness≤50mg/L, SDI≤4, silicon≤
1mg/L, coagulant include inorganic coagulant, organic coagulants and compound coagulant, and flocculant includes inorganic flocculating agent and organic
Flocculant, softening medicament include: sodium hydroxide, calcium oxide, calcium hydroxide, calcium chloride, magnesium hydroxide, sodium carbonate, in magnesium chloride
One or more of combinations, the raw water pH after softening medicament is added reaches 11~14.
For the better implementation present invention, spy lifts following examples and further illustrates, the present invention is not limited to following examples.
Embodiment 1:
Using the garbage leachate wastewater of certain refuse landfill as research object, softened according to technique shown in FIG. 1
Experiment, waste water TDS are 13000~15000mg/L, and COD is 1000~1500mg/L, and total hardness is 200~300mg/L, and SS is
1800mg/L.Belong to typical high rigidity, high salinity, high organic wastewater.
The waste water is using softening+flocculation+organic tubular ultra-filtration membrane processing, and by testing for a long time, system goes out the water hardness
≤ 50mg/L, SDI≤4, SS≤0.5NTU, silicon≤1mg/L.The influent quality requirement for reaching NF/RO, can further do film
Advanced treating.
Embodiment 2:
Using certain city domestic sewage sewer percolate waste water as research object, carried out according to technique shown in FIG. 1 soft
Change experiment, waste water TDS is 11000~12000mg/L, and COD is 900~1200mg/L, and total hardness is 150~250mg/L, and SS is
1600mg/L.Belong to typical high rigidity, high salinity, high organic wastewater.
The waste water is using softening+flocculation+organic tubular ultra-filtration membrane processing, and by testing for a long time, system goes out the water hardness
≤ 40mg/L, SDI≤4, SS≤0.5NTU, silicon≤1mg/L.The water purification water quality requirement for reaching NF/RO, can further do film
Advanced treating.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (7)
1. a kind of waste water based on organic tubular membrane softens and removes silicon treatment process, which comprises the following steps:
Step 1: waste water is promoted to raw water water collect tank by raw water pump, and when raw water enters softening surge tank while softening is added
Medicament；
Step 2: coagulant and flocculant is added when entering and flocculating surge tank in the raw water that step 1 obtains simultaneously；
Step 3: the raw water that step 2 is obtained is sent into organic tubular ultra-filtration membrane and carries out mud-water separation, and clear liquid enters clear liquid buffering
Tank；
Step 4: step 3 enters plate and frame filter press through the dope to be treated that organic tubular ultra-filtration membrane is isolated, into plate
The last solid being press-filtered out in the dope of frame filter press enters Treatment of Sludge link, and the clear liquid obtained through plate and frame filter press flows back
To organic tubular ultra-filtration membrane system, organic tubular ultra-filtration membrane system and plate and frame filter press carry out circulating purification, and final clear liquid enters
Clear liquid surge tank obtains last production water by clear liquid surge tank.
2. a kind of waste water based on organic tubular membrane according to claim 1 softens and removes silicon treatment process, feature exists
In the last producing water water quality reaches: SS≤0.5NTU, total hardness≤50mg/L, SDI≤4, silicon≤1mg/L.
3. a kind of waste water based on organic tubular membrane according to claim 1 softens and removes silicon treatment process, feature exists
In organic tubular ultra-filtration membrane is PEK, PES, PVC, PS, PP tubular ultra-filtration membrane, membrane aperture 5nm~0.2 μm.
4. a kind of waste water based on organic tubular membrane according to claim 1 softens and removes silicon treatment process, feature exists
In the coagulant includes inorganic coagulant, organic coagulants and compound coagulant.
5. a kind of waste water based on organic tubular membrane according to claim 1 softens and removes silicon treatment process, feature exists
In the flocculant includes inorganic flocculating agent and organic flocculant.
6. a kind of waste water based on organic tubular membrane according to claim 1 softens and removes silicon treatment process, feature exists
In the softening medicament includes: sodium hydroxide, calcium oxide, calcium hydroxide, calcium chloride, magnesium hydroxide, sodium carbonate, magnesium chloride
One or more of combination.
7. a kind of waste water based on organic tubular membrane according to claim 1 softens and removes silicon treatment process, feature exists
In the raw water pH being added after softening medicament reaches 11~14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811604689.3A CN109607864A (en) | 2018-12-26 | 2018-12-26 | It is a kind of based on organic tubular membrane waste water softening and remove silicon treatment process |
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| CN201811604689.3A CN109607864A (en) | 2018-12-26 | 2018-12-26 | It is a kind of based on organic tubular membrane waste water softening and remove silicon treatment process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114409142A (en) * | 2022-02-16 | 2022-04-29 | 莱特莱德(上海)技术有限公司 | High-hardness wastewater softening treatment device and method |
| CN115043522A (en) * | 2022-06-15 | 2022-09-13 | 安徽普朗膜技术有限公司 | Wastewater treatment process based on organic tubular membrane |
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| CN106477762A (en) * | 2015-09-01 | 2017-03-08 | 约瑟夫·安德鲁·兰德 | Industrial concentrated water sofening treatment technique based on DF tubular membrane and system |
| CN107445334A (en) * | 2017-08-06 | 2017-12-08 | 陕西蔚蓝节能环境科技集团有限责任公司 | A kind of reverse osmosis concentrated water softening removes silicon treatment process |
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2018
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| CN103466843A (en) * | 2013-10-08 | 2013-12-25 | 宜兴市欧瑞特环保科技有限公司 | Technology and device for treating heavy metal ion wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114409142A (en) * | 2022-02-16 | 2022-04-29 | 莱特莱德(上海)技术有限公司 | High-hardness wastewater softening treatment device and method |
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Application publication date: 20190412 |