CN107986415A - A kind of sludge separation formula and preparation method thereof - Google Patents
A kind of sludge separation formula and preparation method thereof Download PDFInfo
- Publication number
- CN107986415A CN107986415A CN201711297285.XA CN201711297285A CN107986415A CN 107986415 A CN107986415 A CN 107986415A CN 201711297285 A CN201711297285 A CN 201711297285A CN 107986415 A CN107986415 A CN 107986415A
- Authority
- CN
- China
- Prior art keywords
- flocculant
- coagulant
- water
- sludge separation
- polyacrylamide
- 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
Classifications
-
- 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
- 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of separation of sludge to be formulated, its key points of the technical solution are that, it is made of the raw material that following weight matches：Flocculant 0.1 0.5%, flocculation aid 0.1 0.5%, alum 0.2 0.5%, remaining is water；The present invention is intended to provide a kind of sludge separation formula, can adjust or improve the condition of coagulation, further improve flocculating effect, water body is more clarified.
Description
Technical field
The present invention relates to a kind of technical field of sludge treatment, more specifically, it relates to a kind of sludge separation formula and its
Preparation method.
Background technology
With the development of industrial and agricultural production and the continuous improvement of human living standard, various trade effluents, sanitary wastewater
Discharge capacity shows increasingly increased trend, and various water technologies come into being simultaneously gradually ripe therewith.Especially at some
Densely populated, water scarcity city, the separation for sanitary sewage and trade effluent, makes discharge water be up to state standards aobvious
It is particularly important that obtaining.
In the prior art, purifying water process mode is various, but conventional water treatment technology is typically necessary consumption largely
Medicament, and water body clarifying effect is undesirable.Compared with other water technologies, flocculation deposition seperation method has flocculating effect
The advantages that good, easy to operate.
The Chinese patent of Application No. 201410838961.X discloses a kind of natural macromolecule flocculating agent of modification, this
Modified natural macromolecule flocculating agent is by weight including being 1:（15 -55）Natural macromolecule flocculating agent and alum, mixing
After the acidifying of suitable dilute sulfuric acid is added dropwise, 30s, the speed stirring of 150r/min are then stirred with the speed of 500r/min
The speed of 5min, 80r/min stir 10min, and filtering, filters off residue, up to modified natural macromolecule flocculating agent after concentration；
The natural macromolecule flocculating agent of this modification realizes modification by adding alum in flocculant, to natural macromolecule flocculating agent,
Flocculating effect is improved to a certain extent, and can reduce the consumption of medicament, but utilizes the natural polymer of this modification
Flocculant carries out sewage purification directly as coagulant, still suffers from following defect：The condition of water quality such as the pH values of different waste water, basicity
Differ, when the aquatic environment of raw water does not reach Optimum flocculation parameter, wadded a quilt with cotton using the natural polymer of this modification merely
Solidifying agent carries out sewage purification directly as coagulant, and coagulation effect is poor, especially when impurities in water concentration is relatively low, between particle
Collide probability to decline, water body clarifying effect can be relatively undesirable.
The content of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of sludge separation formula, can adjust
Or improve the condition of coagulation, flocculating effect is further improved, water body is more clarified.
To achieve the above object, the present invention provides following technical solution：A kind of sludge separation formula, it is by following heavy
The raw material composition of amount proportioning：Flocculant 0.1-0.5%, flocculation aid 0.1-0.5%, alum 0.2-0.5%, remaining is water.
Preferably, flocculant 0.35%, flocculation aid 0.35%, alum 0.3%, remaining is water.
Preferably, the flocculant is polyacrylamide.
Preferably, the flocculation aid is lime, sodium bicarbonate, oxygen, polyacrylamide, activated silicic acid, gelatine, alginic acid
Sodium, the one or more of safflower tree.
Preferably, the formula is also added with coagulant 0.05%-0.4%.
Preferably, the coagulant is aluminium chloride, ferric trichloride, chlorine sulphur iron, composite demulsifying agent, calcium hydroxide, sulphur
Sour ferrous iron, bodied ferric sulfate, poly-ferric chloride, aluminum sulfate, calcium chloride, the one or more of pulverized limestone.
To achieve the above object, the present invention also provides a kind of preparation method of sludge separation formula, comprise the following steps：
（1）Determine the model of flocculant：The close pH value of pending waste liquid is measured with pH value test paper, is selected when such as neutral and alkaline
Anionic polyacrylamide is as flocculant, as used non-ionic polyacrylamide during faintly acid as flocculant, such as highly basic or
Cationic polyacrylamide is used during highly acid as flocculant；
（2）Determine the dosing ratio of flocculant：Take sewage to be put into glass beaker, corresponding flocculation is selected according to the pH value of detection
Formulation number, is made into the polyacrylamide solution that concentration is 0.1%-0.3%, is progressively added in units of milliliter with plastic needle cylinder
Enter in beaker and stirred, observe the shaping of its flco and settling velocity, repeat three times experiments, taken out according to the size of dosage
Median is as optimal dosing ratio；
（3）Determine the optimal weight ratio of coagulant：5 glass beakers are taken, the pending waste liquid of same volume are injected separately into, by place
Technological requirement is managed, using sodium hydroxide as lye, using sulfuric acid, hydrochloric acid or ferric sulfate as acid solution, by waste liquid adjustment PH to setting
Value, weighs selected coagulant, adds in the waste liquid after PH levelling, fills in 0.05%, 0.1%, 0.2%, 0.3%, 0.4% ratio
Dividing after stirring and be separately added into the flocculant of 5-10ml respective models again, be sufficiently stirred, after stratification, observation flco amount is most,
The most clear sample of supernatant water quality is coagulant closest to weight ratio, after little sample testing first, closest to weight ratio
On the basis of, dosage is suitably aligned, optimal weight ratio is determined after being repeated several times；
（4）Prepare：Alum water is made by formula rate, with blender stir about 30 minutes, presses thrown by optimal successively in sequence
Medicine ratio adds coagulant, flocculant and flocculation aid in alum water, 30 minutes when persistently stir about 1 is small.
The present invention has compared with prior art：
（1）Formula, also added with flocculation aid, can play water quality adjustment effect on the basis of alum and flocculant, improve
The condition of coagulation, coagulation effect is more preferably；The structure of flocculant can also be improved by adding flocculation aid at the same time, utilize macromolecule flocculation aid
Strong adsorption bridging action, tiny loose floccule body is become thick and close, also can in the case that impurity concentration is relatively low
Play good coagulation effect；
（2）Basicity can be improved as flocculation aid using lime or sodium bicarbonate when the basicity of raw water is insufficient, reached optimal
Coagulation condition；When using ferrous sulfate as coagulant, the Fe2+ in waste water can be oxidized to three using oxygen as flocculation aid
Valency Fe3+, makes iron ion more stable in state, it is easier to generation precipitation；
（3）Formula includes alum, coagulant, flocculant and flocculation aid, and alum is dissolved in ionizing after water as water purification agent produces Al3+,
With OH-combination generation alumine hydroxide colloid of the water power from generation, the positive charge of alumine hydroxide colloid colloid surface with it is electronegative
Precipitated in silt micelle with generation；Coagulant can get up the small organic molecule flocculation in waste water, then pass through flocculant
By the flocculate of the flocculate coacervating large particle of small molecule, coagulation effect is further improved, purification of waste water is more thorough；
（4）It is flocculant that this formula, which selects polyacrylamide, and waste water for neutral and alkalescence when, selection anionic polyacrylamide
It is advisable as flocculant, wads a quilt with cotton for the higher positively charged mineral suspensions of concentration in waste water, and thicker suspended particles
It is solidifying better；As used non-ionic polyacrylamide more suitable as flocculant during faintly acid；During such as highly basic or highly acid
Using cationic polyacrylamide as flocculant, positive electricity is presented in highly basic or strong acid medium in cationic polyacrylamide
Property, flocculation sediment is so carried out to the negatively charged sewage of suspended particulate in sewage, clarification is extremely effective；
（5）This formula can clearly draw the model and dosing ratio of required flocculant and coagulant by Beaker Test,
In definite flocculant dosing ratio, it is gradually added in beaker and is stirred in units of milliliter by plastic needle cylinder, is observed
Its flco is molded and settling velocity, and repeats three times experiments, and median is taken out as optimal dosing ratio according to the size of dosage
Example, so operation can accurately control dosing ratio, appearance flocculation is slow in the case of avoiding dosage very few, flco is not close,
Situations such as slow is precipitated, dosage is excessive to occur situations such as water quality is sticky；In the optimal dosing ratio of definite coagulant, by
The coagulant of 5 kinds of different proportions is put into glass beaker, finally observes flocculation situation, and then effectively control coagulant dosing ratio
Example.
Embodiment
Embodiment 1
A kind of sludge separation formula, it is characterised in that it is made of the raw material that following weight matches：Flocculant 0.35g, is helped solidifying
Agent 0.35g, alum 0.3g, water 99g, alum water is made by formula rate, with blender stir about 30 minutes, in sequence successively
Flocculant and flocculation aid are added in alum water in proportion, 30 minutes when persistently stir about 1 is small.
Embodiment 2
A kind of sludge separation formula, it is characterised in that it is made of the raw material that following weight matches：Flocculant 0.05g, is helped solidifying
Agent 0.05g, alum 0.1g, water 99.8g, alum water is made by formula rate, with blender stir about 30 minutes, in sequence according to
It is secondary to add flocculant and flocculation aid in alum water in proportion, 30 minutes when persistently stir about 1 is small.
Embodiment 3
A kind of sludge separation formula, it is characterised in that it is made of the raw material that following weight matches：Coagulant 0.2g, flocculant
0.35g, flocculation aid 0.35g, alum 0.3g, water 98.8g, alum water is made by formula rate, with blender stir about 30 minutes,
Coagulant, flocculant and flocculation aid are added in alum water in proportion successively in sequence, 30 minutes when persistently stir about 1 is small.
Embodiment 4
A kind of sludge separation formula, it is characterised in that it is made of the raw material that following weight matches：Coagulant 0.2g, flocculant
0.35g, alum 0.3g, water 99.15g, alum water is made by formula rate, with blender stir about 30 minutes, in sequence according to
It is secondary to add coagulant and flocculant in alum water in proportion, 30 minutes when persistently stir about 1 is small.
Flocculant in above example selects polyacrylamide, and coagulant selects ferrous sulfate, and flocculation aid selects oxygen
Gas, takes the glass beaker of 8 1000ml, wherein 4 are injected separately into the higher pending waste liquid of 1000ml impurity concentrations, in addition 4
The relatively low pending waste liquid of 1000ml impurity concentrations is injected in glass beaker, by treatment process requirement, adjustment PH to setting value,
By embodiment 1, embodiment 2, to implement formula in 3 and embodiment 4 duplicate, is separately added into that 1 impurity concentration is higher to be treated
Dispose waste liquid in the pending waste liquid relatively low with 1 impurity concentration, be sufficiently stirred, after stratification, observe in glass beaker
Flco state, settling velocity and supernatant water quality situation；
Test result：
Above test result is understood：Pending waste liquid is in the case where impurity concentration is higher, a kind of sludge separation formula of the present invention
Embodiment 1, embodiment 3 and implement 4 can play preferable clarifying effect；When the relatively low situation of pending waste liquid impurity concentration
Under, since inter-particle collision probability declines, a kind of embodiment 3 of sludge separation formula of the present invention is flocculated relative to other embodiment
It is better.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of sludge separation formula, it is characterised in that it is made of the raw material that following weight matches：Flocculant 0.1-0.5%,
Flocculation aid 0.1-0.5%, alum 0.2-0.5%, remaining is water.
2. a kind of sludge separation formula according to claim 1, it is characterized in that：Flocculant 0.35%, flocculation aid 0.35% are bright
Alum 0.3%, remaining is water.
3. a kind of sludge separation formula according to claim 1 or 2, it is characterized in that：The flocculant is polyacrylamide.
4. a kind of sludge separation formula according to claim 1 or 2, it is characterized in that：The flocculation aid is lime, heavy carbonic
Sodium, oxygen, polyacrylamide, activated silicic acid, gelatine, sodium alginate, the one or more of safflower tree.
5. a kind of sludge separation formula according to claim 1 or 2, it is characterized in that：The formula is also added with coagulant
0.05%-0.4%。
6. a kind of sludge separation formula according to claim 5, it is characterized in that：The coagulant is aluminium chloride, three
Iron chloride, chlorine sulphur iron, composite demulsifying agent, calcium hydroxide, ferrous sulfate, bodied ferric sulfate, poly-ferric chloride, aluminum sulfate, chlorination
The one or more of calcium, pulverized limestone.
7. the preparation method of sludge separation formula according to claim 6, it is characterised in that comprise the following steps：
（1）Determine the model of flocculant：The close pH value of pending waste liquid is measured with pH value test paper, is selected when such as neutral and alkaline
Anionic polyacrylamide is as flocculant, as used non-ionic polyacrylamide during faintly acid as flocculant, such as highly basic or
Cationic polyacrylamide is used during highly acid as flocculant；
（2）Determine the dosing ratio of flocculant：Take sewage to be put into glass beaker, corresponding flocculation is selected according to the pH value of detection
Formulation number, is made into the polyacrylamide solution that concentration is 0.1%-0.3%, is progressively added in units of milliliter with plastic needle cylinder
Enter in beaker and stirred, observe the shaping of its flco and settling velocity, repeat three times experiments, taken out according to the size of dosage
Median is as optimal dosing ratio；
（3）Determine the optimal weight ratio of coagulant：5 glass beakers are taken, the pending waste liquid of same volume are injected separately into, by place
Technological requirement is managed, using sodium hydroxide as lye, using sulfuric acid, hydrochloric acid or ferric sulfate as acid solution, by waste liquid adjustment PH to setting
Value, weighs selected coagulant, adds in the waste liquid after PH levelling, fills in 0.05%, 0.1%, 0.2%, 0.3%, 0.4% ratio
Divide after stirring and be separately added into the flocculant of 5-10ml respective model doses again, be sufficiently stirred, after stratification, observation flco amount is most
More, the most clear sample of supernatant water quality is coagulant closest to weight ratio, after little sample testing first, closest to dispensing ratio
On the basis of example, dosage is suitably aligned, optimal weight ratio is determined after being repeated several times；
（4）Prepare：Alum water is made by formula rate, with blender stir about 30 minutes, in sequence successively by optimal dispensing
Ratio adds coagulant, flocculant and flocculation aid in alum water, 30 minutes when persistently stir about 1 is small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297285.XA CN107986415A (en) | 2017-12-08 | 2017-12-08 | A kind of sludge separation formula and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297285.XA CN107986415A (en) | 2017-12-08 | 2017-12-08 | A kind of sludge separation formula and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107986415A true CN107986415A (en) | 2018-05-04 |
Family
ID=62035838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711297285.XA Pending CN107986415A (en) | 2017-12-08 | 2017-12-08 | A kind of sludge separation formula and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107986415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115028160A (en) * | 2022-06-20 | 2022-09-09 | 清华大学深圳国际研究生院 | Method for preparing hollow carbon nano-cake by using water body micro-plastic coagulated flocs and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110254A (en) * | 1995-03-12 | 1995-10-18 | 井庆有 | Preparation and application of compound sewage flocculating agent |
| WO2001025156A1 (en) * | 1999-10-06 | 2001-04-12 | Kemira Kemi Ab | Cationic polymers for sludge dewatering |
| CN101050044A (en) * | 2007-05-14 | 2007-10-10 | 庞鹏远 | Method for carrying out advanced treatment on papermaking sewage |
| CN101519237A (en) * | 2008-02-25 | 2009-09-02 | 四平海特环保设备有限公司 | Compound high-efficiency flocculating agent |
| CN104961211A (en) * | 2015-06-24 | 2015-10-07 | 王培琰 | Waste water treating agent |
| CN104973670A (en) * | 2015-06-24 | 2015-10-14 | 陈伟 | Inorganic-organic composite flocculant used for treating oil-containing wastewater sewage |
-
2017
- 2017-12-08 CN CN201711297285.XA patent/CN107986415A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110254A (en) * | 1995-03-12 | 1995-10-18 | 井庆有 | Preparation and application of compound sewage flocculating agent |
| WO2001025156A1 (en) * | 1999-10-06 | 2001-04-12 | Kemira Kemi Ab | Cationic polymers for sludge dewatering |
| CN101050044A (en) * | 2007-05-14 | 2007-10-10 | 庞鹏远 | Method for carrying out advanced treatment on papermaking sewage |
| CN101519237A (en) * | 2008-02-25 | 2009-09-02 | 四平海特环保设备有限公司 | Compound high-efficiency flocculating agent |
| CN104961211A (en) * | 2015-06-24 | 2015-10-07 | 王培琰 | Waste water treating agent |
| CN104973670A (en) * | 2015-06-24 | 2015-10-14 | 陈伟 | Inorganic-organic composite flocculant used for treating oil-containing wastewater sewage |
Non-Patent Citations (2)
| Title |
|---|
| 曹文平等: "《环境工程导论》", 30 November 2012, 中国质检出版社 * |
| 环境工程学会论文选编编辑部: "《环境工程学会1981年年会论文选编-水污染控制技术》", 31 December 1981, 环境工程学会论文选编编辑部 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115028160A (en) * | 2022-06-20 | 2022-09-09 | 清华大学深圳国际研究生院 | Method for preparing hollow carbon nano-cake by using water body micro-plastic coagulated flocs and application thereof |
| CN115028160B (en) * | 2022-06-20 | 2023-08-22 | 清华大学深圳国际研究生院 | Method for preparing hollow carbon nano cake by utilizing water micro-plastic coagulation floc and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ayeche | Treatment by coagulation-flocculation of dairy wastewater with the residual lime of National Algerian Industrial Gases Company (NIGC-Annaba) | |
| KR101016392B1 (en) | Coagulant compositions for water/wastewater treatment by using zirconium compounds and water/wastewater treatment method using the same | |
| CN101805051B (en) | Compound phosphoric polyferric sulfate flocculant and production method thereof | |
| CN108083345A (en) | A kind of method that polymeric aluminum sulfate silicate iron composite flocculation agent is prepared using red mud waste material | |
| CN107140763A (en) | A kind of processing method of the good mercury-containing waste water of applicability | |
| CN109502720A (en) | A method of nitrogen phosphorus in waste water is removed using magnesium salts in desulfurization wastewater | |
| CN111498960A (en) | Defluorination medicament and application thereof | |
| US20150210580A9 (en) | Compositions for Conditioning Sludge | |
| CN1385373A (en) | Coagulant for sewage treatment | |
| KR20110131535A (en) | The method and appuratus of removing total nitrogen and phosphate in sewage and wastewater using precipitation-agent of rapidity for coagulation an flocculation | |
| CN101492192A (en) | Coagulating agent for treating wastewater containing fluorine and use process thereof | |
| CN107986415A (en) | A kind of sludge separation formula and preparation method thereof | |
| CN107867743A (en) | A kind of sewage-treating agent and preparation method thereof | |
| CN105967484A (en) | Sludge deep dehydration method for processing flue gas desulfurization wastewater sludge | |
| CN101704569B (en) | Flocculant for purifying emulsified oil-containing waste water and preparation method thereof | |
| JP2774096B2 (en) | Purification agent for polluted wastewater | |
| CN111039375A (en) | Flocculating agent for mine beneficiation wastewater treatment and preparation method and application thereof | |
| CN104882185B (en) | The flocculant and its application method of radioactive element in a kind for the treatment of sewage | |
| CN105692831A (en) | Efficient slag-based inorganic phosphorous removal flocculating agent and preparation method thereof | |
| CN105906006B (en) | A kind of preparation method of living drainage inorganic agent | |
| JP3262194B2 (en) | Treatment of colored concrete wastewater. | |
| CN106630293A (en) | Emergency treatment method for antimony-exceeded waste water at low temperature | |
| CN108249537A (en) | A kind of sewage disposal precipitating reagent and its processing method | |
| JPH10277307A (en) | Adsorption flocculant and water treating method | |
| CN102079564A (en) | Polyaluminium chloride-aluminum sulfate-poly dimethyl diallyl ammonium chloride ternary composite coagulant as well as preparation and application methods thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180504 |
|
| RJ01 | Rejection of invention patent application after publication |