CN105776467A - Preparation method of composite flocculant for wastewater purification - Google Patents
Preparation method of composite flocculant for wastewater purification Download PDFInfo
- Publication number
- CN105776467A CN105776467A CN201610148969.2A CN201610148969A CN105776467A CN 105776467 A CN105776467 A CN 105776467A CN 201610148969 A CN201610148969 A CN 201610148969A CN 105776467 A CN105776467 A CN 105776467A
- Authority
- CN
- China
- Prior art keywords
- parts
- raw material
- mixed
- preparation
- calcium sulfate
- 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
- C02F1/5236—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
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a preparation method of a composite flocculant for wastewater purification. The composite flocculant is prepared from the following raw materials in parts by weight: 32 to 40 parts of modified bentonite, 18 to 24 parts of a polymeric flocculant, 5 to 12 parts of tripotassium phosphate and 6 to 11 parts of calcium sulfate. The method comprises the following steps: (1) preparing the raw materials in parts by weight; (2) performing homogeneous mixing, namely mixing the modified bentonite and the polymeric flocculant in a high-speed homogeneous mixer, observing mixed granularity distribution under a 1,000* microscope after a certain time, and determining that the mixed granularity distribution is qualified if the mixing homogeneity is equal to or higher than 98 percent; (3) loading the tripotassium phosphate and the calcium sulfate in a ball mill, starting the ball mill for 30 minutes, adding the materials homogeneously mixed in Step (2) in batches after the time, and performing ball milling for 60 to 90 minutes to obtain a water purifying agent. The composite flocculant is high in yield and low in total cost, the preparation and using methods are both simple and easy, and the TDS, electrical conductivity and COD of wastewater can be obviously reduced only with a small dosage of the composite flocculant.
Description
Technical field
The present invention relates to a kind of preparation method purifying waste water composite flocculation agent.
Background technology
Industrialize and the quick raising of living standard, annual production waste water and the discharge capacity of sanitary sewage along with China produces
Also quickly increasing on the ground in progression, it is environmental protection and resource that these black waters carry out process efficiently and safely
The a great problem that faces of coordinated development, is also that numerous chemical enterprise needs one of predicament of breaking away from badly.
The coagulating treatment of waste water typically uses inorganic coagulant, mainly based on molysite system and aluminium salt system, to turbidity of wastewater,
The removal of colourity and COD has certain effect, but after this kind of inorganic coagulant processes, residual quantity is big, can make the slurry of recovery after hydrolysis
Water builds up new ion and inorganic salts.As Al ion mean concentration in open system is about 2mg/L, closing back
With system is then usually up to (30-40) mg/L.
For avoiding the harmful ion impact on recycle-water as far as possible, improve water recycling rate, it is necessary to exploitation one is not simultaneously
Increase harmful ion concentration, with low cost, medicament that flocculating effect is good, thus reduce the harmful colloid in circulating and recovering water and molten
The content of solution property material, improves reuse water quality, reduces paper performance and the adverse effect of paper machine operation.Final raising papermaking system
The cyclic utilization rate of system water, reduces discharge of wastewater, saving water resource.
Summary of the invention
For solving above technical problem, it is an object of the invention to provide a kind of preparation purifying waste water composite flocculation agent
Method.Productivity of the present invention is high, and integrated cost is low, and preparation and application is the most simple, utilizes the composite flocculation agent of the present invention,
Under less dosage, all can substantially reduce the TDS of waste water, electrical conductivity and COD.
For achieving the above object, the present invention provides a kind of preparation method purifying waste water composite flocculation agent, this compound wadding
The raw material of solidifying agent is by following weight: modified alta-mud 32-40, high polymer coagulant 18-24, tripotassium phosphate 5-12, sulphur
Acid calcium 6-11, the method comprises the steps:
(1) raw material is prepared according to above-mentioned weight；
(2) homogeneous mixing, puts into modified alta-mud, high polymer coagulant in high-speed uniformly mixing machine and mixes, after certain time
Observing combination grain distribution under 1000 power microscopes, degree of being mixed is qualified higher than 98%;
(3) in ball mill, load tripotassium phosphate, calcium sulfate, start shooting 30 minutes, after the above-mentioned time, be dividedly in some parts (2) step institute
The material being mixed stated, ball milling 60-90 minute, obtain water purification agent；
Wherein, the high polymer coagulant in raw material, following technique prepare:
Below 40 DEG C, epoxychloropropane is gradually added dimethylamine, after feeding intake, adds modifying agent triethylene tetramine, epoxy
Chloropropane and dimethylamine molar ratio are 1-1.5:1, and triethylene tetramine accounts for reaction monomers gross weight 1-2.5%, then constant temperature
Control at 60-80 DEG C, react 5-8h, obtain product；
Wherein, the modified alta-mud in raw material is prepared by following technique:
Being mixed with the sulfuric acid that concentration is 5-20% by bentonite, at certain 60-100 DEG C, acid activation 3-7 hour, is washed with water and washs
Between to pH value to 4-5, drying and obtain atlapulgite product, sulfuric acid and bentonitic liquid-solid ratio are 2-5:1.
Beneficial effect
(1) choosing bentonite material with low cost to be modified, its raw material is easy to get, low price, preparation are simple, and its product is used
In processing, waste water flocculating sinking speed is fast.
(2) nontoxic pollution-free, in water can natural decomposition, greatly reduce secondary biochemical pollution；Can substantially reduce waste water
TDS, electrical conductivity and COD, greatly improve paper waste recycle number of times.
Detailed description of the invention
Embodiment one
The raw material of the composite flocculation agent of the present embodiment is by following weight: modified alta-mud 32, high polymer coagulant 18, phosphorus
Acid tripotassium 5, calcium sulfate 6.
Raw material is prepared according to above-mentioned weight；Homogeneous mixes, and modified alta-mud, high polymer coagulant is put at a high speed
All mixing in machine and mix, observe combination grain distribution after certain time under 1000 power microscopes, degree of being mixed is qualified higher than 98%.
In ball mill load tripotassium phosphate, calcium sulfate, start shooting 30 minutes, be dividedly in some parts after the above-mentioned time described
The material being mixed, ball milling 60 minutes, obtain water purification agent.
Wherein, the high polymer coagulant in raw material, following technique prepare:
Below 40 DEG C, epoxychloropropane is gradually added dimethylamine, after feeding intake, adds modifying agent triethylene tetramine, epoxy
Chloropropane and dimethylamine molar ratio are 1:1, and triethylene tetramine accounts for reaction monomers gross weight 1%, and then thermostatic control is 60
DEG C, react 5h, obtain product.
Wherein, the modified alta-mud in raw material is prepared by following technique:
Bentonite is mixed with the sulfuric acid that concentration is 5%, acid activation 3 hours at certain 60 DEG C, be washed with water to wash to pH value and arrive
Between 4-5, drying and obtain atlapulgite product, sulfuric acid and bentonitic liquid-solid ratio are 2:1.
Embodiment two
The raw material of the composite flocculation agent of the present embodiment is by following weight: modified alta-mud 40, high polymer coagulant 24, phosphorus
Acid tripotassium 12, calcium sulfate 11.
Raw material is prepared according to above-mentioned weight；Homogeneous mixes, and modified alta-mud, high polymer coagulant is put at a high speed
All mixing in machine and mix, observe combination grain distribution after certain time under 1000 power microscopes, degree of being mixed is qualified higher than 98%.
In ball mill load tripotassium phosphate, calcium sulfate, start shooting 30 minutes, be dividedly in some parts after the above-mentioned time described
The material being mixed, ball milling 90 minutes, obtain water purification agent.
Wherein, the high polymer coagulant in raw material, following technique prepare:
Below 40 DEG C, epoxychloropropane is gradually added dimethylamine, after feeding intake, adds modifying agent triethylene tetramine, epoxy
Chloropropane and dimethylamine molar ratio are 1.5:1, and triethylene tetramine accounts for reaction monomers gross weight 2.5%, then thermostatic control
At 80 DEG C, react 8h, obtain product.
Wherein, the modified alta-mud in raw material is prepared by following technique:
Being mixed with the sulfuric acid that concentration is 20% by bentonite, at certain 100 DEG C, acid activation 7 hours, is washed with water and washs to pH value
Between 4-5, drying and obtain atlapulgite product, sulfuric acid and bentonitic liquid-solid ratio are 5:1.
Comparative example
The Bentonite Clean Water Reagent buied from the market.
The water purification agent of specific embodiment one, two and market is carried out contrast test, and result is as follows:
By the contrast of above-mentioned data, the specific embodiment one, two of the present invention contrasts with the flocculant product of market sale,
The COD clearance of the present invention therein, SS clearance are significantly carried apparently higher than existing product, the process to sewage
Rise.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, within all should being included in protection scope of the present invention.
Claims (1)
1. purifying a preparation method for waste water composite flocculation agent, the raw material of this composite flocculation agent is by following weight:
Modified alta-mud 32-40, high polymer coagulant 18-24, tripotassium phosphate 5-12, calcium sulfate 6-11, the method comprises the steps:
(1) raw material is prepared according to above-mentioned weight；
(2) homogeneous mixing, puts into modified alta-mud, high polymer coagulant in high-speed uniformly mixing machine and mixes, after certain time
Observing combination grain distribution under 1000 power microscopes, degree of being mixed is qualified higher than 98%;
(3) in ball mill, load tripotassium phosphate, calcium sulfate, start shooting 30 minutes, after the above-mentioned time, be dividedly in some parts (2) step institute
The material being mixed stated, ball milling 60-90 minute, obtain water purification agent；
Wherein, the high polymer coagulant in raw material, following technique prepare:
Below 40 DEG C, epoxychloropropane is gradually added dimethylamine, after feeding intake, adds modifying agent triethylene tetramine, epoxy
Chloropropane and dimethylamine molar ratio are 1-1.5:1, and triethylene tetramine accounts for reaction monomers gross weight 1-2.5%, then constant temperature
Control at 60-80 DEG C, react 5-8h, obtain product；
Wherein, the modified alta-mud in raw material is prepared by following technique:
Being mixed with the sulfuric acid that concentration is 5-20% by bentonite, at certain 60-100 DEG C, acid activation 3-7 hour, is washed with water and washs
Between to pH value to 4-5, drying and obtain atlapulgite product, sulfuric acid and bentonitic liquid-solid ratio are 2-5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148969.2A CN105776467A (en) | 2016-03-16 | 2016-03-16 | Preparation method of composite flocculant for wastewater purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148969.2A CN105776467A (en) | 2016-03-16 | 2016-03-16 | Preparation method of composite flocculant for wastewater purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105776467A true CN105776467A (en) | 2016-07-20 |
Family
ID=56393745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610148969.2A Pending CN105776467A (en) | 2016-03-16 | 2016-03-16 | Preparation method of composite flocculant for wastewater purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105776467A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108178258A (en) * | 2017-12-01 | 2018-06-19 | 杭州凯博特环保科技开发有限公司 | Municipal sewage treatment agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041494A (en) * | 2007-03-06 | 2007-09-26 | 王广学 | Flocculation water purification agent for drinking water, industrial water and dyeing-finishing sewage treatment |
| CN102198969A (en) * | 2010-03-22 | 2011-09-28 | 天津大港油田科远石油工程有限责任公司 | Oil-removing compound and its preparation method |
| CN103043766A (en) * | 2012-12-14 | 2013-04-17 | 山东大学 | Ferric salt-polyepichlorohydrin-dimethylamine composite flocculant as well as preparation method and application thereof |
-
2016
- 2016-03-16 CN CN201610148969.2A patent/CN105776467A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041494A (en) * | 2007-03-06 | 2007-09-26 | 王广学 | Flocculation water purification agent for drinking water, industrial water and dyeing-finishing sewage treatment |
| CN102198969A (en) * | 2010-03-22 | 2011-09-28 | 天津大港油田科远石油工程有限责任公司 | Oil-removing compound and its preparation method |
| CN103043766A (en) * | 2012-12-14 | 2013-04-17 | 山东大学 | Ferric salt-polyepichlorohydrin-dimethylamine composite flocculant as well as preparation method and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108178258A (en) * | 2017-12-01 | 2018-06-19 | 杭州凯博特环保科技开发有限公司 | Municipal sewage treatment agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104478050B (en) | A kind of preparation method and applications of the improved PFS for processing industrial wastewater | |
| CN101439897A (en) | Preparation of composite flocculant for recovering phosphor in sewerage and phosphor recovering process | |
| CN104512951B (en) | A kind of method of utilizing PAC residue coproduction polymeric aluminum sulfate silicate iron and wastewater treatment pulvis | |
| CN102153184B (en) | Composite organic and inorganic polymeric flocculant and preparation process and application of composite organic and inorganic polymeric flocculant | |
| CN102442735B (en) | Method for treating wastewater of rubber antioxidant (RD) production device | |
| CN104480315A (en) | Method for recycling leached and press-filtered residues generated in production of electrolytic metal manganese and manganese dioxide | |
| CN104495995A (en) | Method for preparing polyaluminum ferric chloride sulfate by using industrial waste | |
| CN102674512B (en) | Composite flocculant for treating anionic dye wastewater and preparation method for composite flocculant | |
| CN100441518C (en) | Flocculant for treating fluorite ore-dressing wastewater | |
| CN107140700A (en) | Purifying agent for polluted water and preparation method thereof | |
| CN105776467A (en) | Preparation method of composite flocculant for wastewater purification | |
| CN101665279A (en) | Flocculating agent for removing phosphor with low concentration in water | |
| CN102153177A (en) | Efficient dephosphorization agent for waste water treatment | |
| CN104478165A (en) | Treatment method for secondary black liquor | |
| CN104211106B (en) | A kind of carbonated rare earth preparation method not producing ammonia nitrogen waste water | |
| CN102491475A (en) | Waste water treatment flocculating agent and preparation method and use thereof | |
| CN105731692A (en) | Pretreatment method suitable for evaporative crystallization of landfill leachate stock solution | |
| CN102897884A (en) | Composite flocculant as well as preparation method and application thereof on processing printing and dyeing wastewater | |
| CN103241819B (en) | Modified red earth flocculant and method for preparing same | |
| CN106241983A (en) | A kind of purification process technique of waste or used plastics wash water | |
| CN102219290B (en) | Complex coagulant for advanced treatment of biochemical tail water, and its preparation method and application | |
| CN107235545A (en) | A kind of method that poly- phosphorus aluminum sulfate titanium flocculant is prepared under the conditions of microwave radiation | |
| CN107522275A (en) | A kind of sewage flocculant and preparation method thereof | |
| CN104177515B (en) | A kind of environment-friendly type processing method of Heveatex resource hierarchy time complete utilization | |
| CN101974866A (en) | Method for preparing flocculant for treating papermaking black liquor by using waste collagen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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: 20160720 |
|
| RJ01 | Rejection of invention patent application after publication |