CN1160682A - Composite coagulant for water treatment and its preparation process - Google Patents
Composite coagulant for water treatment and its preparation process Download PDFInfo
- Publication number
- CN1160682A CN1160682A CN 96115195 CN96115195A CN1160682A CN 1160682 A CN1160682 A CN 1160682A CN 96115195 CN96115195 CN 96115195 CN 96115195 A CN96115195 A CN 96115195A CN 1160682 A CN1160682 A CN 1160682A
- Authority
- CN
- China
- Prior art keywords
- compound coagulant
- clay
- molysite
- breeze
- water treatment
- 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
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The composite coagulant consists of fly ash, fine coke, clay and inorganic aluminium (or iron) salt and is produced through separate crushing and mechanical mixing at normal temp. It has low cost, wide material source, simple preparation process and good treatment effect and the present invention utilizes waste material in water treatment.
Description
The present invention is a kind of compound coagulant that is used for trade effluent and sanitary sewage disposal and preparation method thereof, especially selects compound coagulant nontoxic, that price is low, the trade waste flyash of wide material sources, breeze, clay, inorganic aluminate (or molysite) form for preparation of raw material for use.
At present, the coagulating agent of handling the employing of trade effluent and sanitary sewage generally has aluminium salt, molysite or their polymkeric substance (polymerize aluminum chloride and bodied ferric sulfate), what also have is used in combination inorganic coagulant and organic polymer coagulating agent, and what also have mixes use with aluminium salt and molysite.Adopt above-mentioned coagulating agent, the coagulation body that forms behind coagulating is big through the flocs unit water content that flocculation agent (or being coagulant aids) flocculation forms, settling velocity is slow, the final sludge volume that forms is big, be difficult for handling, its cost of coagulating agent commonly used at present is also higher, and the removal of pollutent in the sewage is also had significant limitation.
It is low that this invention aims to provide processing cost, coagulation effect is good, applied widely, the formation sludge moisture content is few, volume is little, easy processing, can be widely used in oily(waste)water, trade effluent and sanitary sewage disposal, and provide the method for using flyash, breeze, clay, inorganic aluminate (or molysite) to make compound coagulant as raw material, realize the treatment of wastes with processes of wastes against one another, the purpose of changing waste into valuable.
The flyash of China is used for construction industry more and makes the starting material of cement, and its major ingredient is SiO
2(15-60%), Al
2O
3(15-40%), Fe
2O
3(1-35%), CaO (1-20), a certain amount of carbon also has a spot of MgO, K
2O, Na
2O.Breeze is the waste material of industrial coke, and main at present as fuel, its major ingredient is a porousness carbon.Clay distribution wide range, its main chemical are SiO
2And Al
2O
3This invention can use various flyash, breeze, clay to be main raw material, again according to the character of waste water (sewage), is equipped with a certain amount of inorganic aluminate (or molysite) and is processed into compound coagulant.
The technical conceive of this invention is, be used to handle the ratio of starting material flyash, breeze, clay and inorganic aluminate (or molysite) of the compound coagulant of trade effluent of different nature and sanitary sewage, need to decide according to the actual nature of waste water (sewage), just can make this kind compound coagulant produce best coagulation effect, be unlikely the waste medicine again.High price positively charged ions such as water miscible Ca, Mg, Al, Fe produce complex coagulation effect, water-insoluble porous carbon dust, Al to pollutent in the waste water in this kind compound coagulant
2O
3Produce very strong adsorption Deng to some pollutent in the waste water (sewage), the enhancement process effect also helps heavy effect simultaneously.This kind compound coagulant is after producing coagulating, and the coagulation body of formation is after the polyacrylamide flocculation, and the flocs unit granularity of formation is big, sedimentation is fast, water content is few, and the mud of formation is handled easily, can reclaim as brick producing material, can also be as fuel.
This kind compound coagulant is all wide to any aluminium salt of pollutant removal kind analogy in the waste water (sewage) or molysite, and it all has very high clearance to oils, COD, sulfide, phosphoric acid salt, heavy metal Hg, Pb, Cd, color and peculiar smell etc. in the water.
Realize that technical scheme of the present invention is, this kind water treatment compound coagulant is characterized in that its (weight percent) composed of the following components: flyash 10～70, breeze 10～70, clay 5～20, inorganic aluminate (or molysite) 5～35.Inorganic aluminate (or molysite) can also be a solution.
A kind of method of making this kind compound coagulant is characterized in that granularity mixes and can use with mechanical means at normal temperatures less than 60 orders with solid materials flyash, breeze, clay and inorganic aluminate (or molysite) separated pulverizing.
Should prevent humidity before processing, transportation and the use.Large usage quantity, scope are 0.5～1.0g/L.
The characteristics and the positively effect of this invention are:
1. compound coagulant starting material wide material sources of the present invention, cheap, can gather materials on the spot, process, manufacture craft is simple, does not need main equipment, and cost of manufacture is low, and the cost of handling waste water (sewage) is also very low;
2. good, applied widely to waste water (sewage) treatment effect, not only oily(waste)water is had very ideal treatment effect, and printing and dyeing industrial waste water, inorganic chemical industry, city domestic sewage are all had the good treatment effect;
3. the floc settlement speed of Xing Chenging is fast, is more than 5 times of aluminium salt and molysite; The sludge moisture content that produces is few, and when its consumption was aluminium salt and molysite 3 times, the sludge volume of formation only was 1/2～1/3 of aluminium salt and a molysite;
4. no waste discharge does not produce secondary pollution; The mud that forms can be used as the batching of brickmaking, also can directly act as a fuel;
5. the starting material of Shi Yonging mainly are trade wastes, realize the treatment of wastes with processes of wastes against one another, the purpose of changing waste into valuable.
Illustrate the preparation method of this kind compound coagulant.
With this kind of preparation 1kg compound coagulant is example:
1.60 the following flyash 0.7kg of order, the following breeze 0.1kg of 60 orders, the following clay 0.1kg of 60 orders, powdery Tai-Ace S 150 0.1kg then can be directly used in the mechanical means mixing at normal temperatures and handle waste water or sanitary sewage.
2.60 the following flyash 0.5kg of order, the following breeze 0.3kg of 60 orders, the following clay 0.05kg of 60 orders, powdery aluminium salt 0.15kg can use with the mechanical means mixing at normal temperatures.
3.60 the following flyash 0.1kg of order, the following breeze 0.7kg of 60 orders, the following clay 0.1kg of 60 orders, powdery inorganic aluminate 0.1kg can use with the mechanical means mixing at normal temperatures.
4.60 the following flyash 0.3kg of order, the following breeze 0.3kg of 60 orders, the following clay 0.05kg of 60 orders, powdery inorganic aluminate 0.35kg can use with the mechanical means mixing at normal temperatures.
5. press the amount of flyash among the embodiment 1-4, breeze, clay, behind the mechanical means mixing, re-use the inorganic aluminum salting liquid that contains respective amount, handle waste water (sewage) jointly and get final product.
6. press the amount of flyash among the embodiment 1-4, breeze, clay, behind the mechanical means mixing, re-use the inorganic molysite solution that contains respective amount, handle waste water (sewage) jointly and get final product.
7. press the amount of flyash among the embodiment 1-4, breeze, clay, behind the mechanical means mixing, re-use the polymerize aluminum chloride that contains respective amount and the aqueous solution of bodied ferric sulfate, handle waste water (sewage) jointly and get final product.
Use the dispose of sewage comparison of effect of compound coagulant of the present invention,
1. use compound coagulant 0.6g of the present invention, Al
2(SO
4)
318H
2O 0.3g, FeCl
36H
2O0.3g, 1 liter of sewage of coagulating treatment, result is listed in table 1.
Table 1 mg/L
| Coagulating agent | Oil | ????COD | Phosphoric acid salt (phosphorus) | |||
| Before | After | Before | After | Before | After | |
| Compound coagulant of the present invention | ????9.19 | ????0.011 | ??223 | ??1?6.3 | ??0.993 | ??0.019 |
| ??Al 2(SO 4) 3·18H 2O | ????9.19 | ????0.136 | ??223 | ??45.9 | ??0.993 | ??0.228 |
| ??FeCl 3·6H 2O | ????9.19 | ????0.159 | ??223 | ??48.8 | ??0.993 | ??0.186 |
2. use compound coagulant 0.6g of the present invention, Al
2(SO
4)
318H
2O 0.3g, FeCl
36H
2O0.3g dispose of sewage middle oil, Hg, Cd the results are shown in table 2,
Table 2 mg/L
| Coagulating agent | Oil | ????Cd | ?????????Hg | |||
| Before the processing | After the processing | Before the processing | After the processing | Before the processing | After the processing | |
| Compound coagulant of the present invention | ??30 | ??0.018 | ??1.00 | ??0.468 | ??0.500 | ??0.081 |
| ??Al 2(SO 4) 3·18H 2O | ??30 | ??0.152 | ??1.00 | ??0.960 | ??0.500 | ??0.479 |
| ??FeCl 3·6H 2O | ??30 | ??0.275 | ??1.00 | ??0.965 | ??0.500 | ??0.477 |
3. use compound coagulant 1g of the present invention, Al
2(SO
4)
318H
2O 0.3g, FeCl
36H
21 liter of sewage of O 0.3g coagulation relatively forms floc settlement speed and forms sludge volume, the results are shown in table 3 (making flocculation agent with polyacrylamide).
Table 3
| Coagulating agent | Settling velocity | Form sludge volume |
| Compound coagulant of the present invention | Sedimentation finishes in 2 minutes | Be to handle 0.4～0.5% of the water yield |
| ??Al 2(SO 4) 3·18H 2O | Sedimentation finishes in 12 minutes | Be to handle 1.2～1.5% of the water yield |
| ??FeCl 3·6H 2O | Sedimentation finishes in 12 minutes | Be to handle 1.2～1.5% of the water yield |
4. use compound coagulant 1g of the present invention, Al
2(SO
4)
318H
2O 0.3g, FeCl
36H
2O 0.3g handles coloured sewage, and result is listed in table 4.
Table 4
| Coagulating agent | Sky-blue | Light red | ||
| Before the processing | After the processing | Before the processing | After the processing | |
| Compound coagulant of the present invention | Shallow orchid | Water white transparency | Pale red | Water white transparency |
| Al 2(SO 4) 3·18H 2O | Shallow orchid | Shallow orchid | Pale red | Pale red |
| FeCl 3·6H 2O | Shallow orchid | Shallow orchid | Pale red | Pale red |
Claims (3)
1. a compound coagulant that is used for water treatment is characterized in that (weight percent) composed of the following components: flyash 10～70, breeze 10～70, clay 5～20, inorganic aluminate (or molysite) 5～35.
2. a method for preparing the compound coagulant that is used for water treatment is characterized in that granularity mixes with mechanical means at normal temperatures less than 60 orders with solid materials flyash, breeze, clay and inorganic aluminate (or molysite) separated pulverizing.
3. compound coagulant according to claim 1 is characterized in that inorganic aluminate (or molysite) can be a solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115195 CN1160682A (en) | 1996-04-01 | 1996-04-01 | Composite coagulant for water treatment and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115195 CN1160682A (en) | 1996-04-01 | 1996-04-01 | Composite coagulant for water treatment and its preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1160682A true CN1160682A (en) | 1997-10-01 |
Family
ID=5122480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96115195 Pending CN1160682A (en) | 1996-04-01 | 1996-04-01 | Composite coagulant for water treatment and its preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1160682A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387532C (en) * | 2005-08-26 | 2008-05-14 | 南京工业大学 | Coagulant for treating printing and dyeing wastewater and production method thereof |
| CN101805085A (en) * | 2010-04-13 | 2010-08-18 | 北京矿冶研究总院 | Method for treating desliming wastewater of reverse flotation of bauxite |
| CN101353195B (en) * | 2007-07-28 | 2010-12-08 | 中国科学院等离子体物理研究所 | Method for effectively removing nitrogen and phosphor in eutrophic water and water treatment agent |
| CN101638259B (en) * | 2009-09-02 | 2011-11-09 | 济南大学 | Method for preparing synthesized high iron-based silicon compound high-molecular coagulant adopting flyash extract |
| CN106241999A (en) * | 2016-09-27 | 2016-12-21 | 中南林业科技大学 | A kind of effluent purification method |
-
1996
- 1996-04-01 CN CN 96115195 patent/CN1160682A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387532C (en) * | 2005-08-26 | 2008-05-14 | 南京工业大学 | Coagulant for treating printing and dyeing wastewater and production method thereof |
| CN101353195B (en) * | 2007-07-28 | 2010-12-08 | 中国科学院等离子体物理研究所 | Method for effectively removing nitrogen and phosphor in eutrophic water and water treatment agent |
| CN101638259B (en) * | 2009-09-02 | 2011-11-09 | 济南大学 | Method for preparing synthesized high iron-based silicon compound high-molecular coagulant adopting flyash extract |
| CN101805085A (en) * | 2010-04-13 | 2010-08-18 | 北京矿冶研究总院 | Method for treating desliming wastewater of reverse flotation of bauxite |
| CN106241999A (en) * | 2016-09-27 | 2016-12-21 | 中南林业科技大学 | A kind of effluent purification method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6180023B1 (en) | Composition and process for remediation of waste streams | |
| KR100275004B1 (en) | High speed waste water disposal method | |
| CN107082479B (en) | Iron-based dephosphorization flocculant with slow release function and preparation method and application thereof | |
| CN106865952A (en) | A kind of method of sludge adjusting material and its application and quenched sludge | |
| Basibuyuk et al. | The use of waterworks sludge for the treatment of vegetable oil refinery industry wastewater | |
| CN103265104A (en) | Nano powder-organic polymer composite flocculating agent | |
| US3226319A (en) | Process of consolidating a voluminous, low solids content sludge | |
| CN102863059A (en) | Additive for enhancing function of organism in aspect of ammonia nitrogen removal in water and use method of additive | |
| CN1821114A (en) | Process for preparing composite floculating agent of aluminium sulfate and slaked lime | |
| Łukasiewicz | Post-coagulation sludge management for water and wastewater treatment with focus on limiting its impact on the environment | |
| CN1160682A (en) | Composite coagulant for water treatment and its preparation process | |
| US3101317A (en) | Coagulation process | |
| CN102583594A (en) | Natural clarifying agent for sewage treatment and use method thereof | |
| CN107098452A (en) | A kind of water treatment agent containing high hole diatom | |
| CN103274421A (en) | Method for recycling silica and polyaluminum ferric chloride in coal ash by using iron and steel pickling waste water | |
| CN101348293A (en) | Composite degreaser | |
| CN105217923A (en) | Sludge slurry deep dehydration amendment and preparation method thereof | |
| CN107522250A (en) | A kind of filtering decolorising agent produced with oily sludge and its manufacture method | |
| CN108328888A (en) | A method of using flyash to Treatment of Sludge | |
| CN1137855C (en) | Water purifying method by swirl oxidation and flocculation | |
| CN209456261U (en) | A kind of hazardous waste processing center waste water treatment system | |
| RU2220923C1 (en) | Method of processing of the redundant active silt containing heavy metals | |
| Anbu Clemensis et al. | Chemical precipitation of aerobically treated olive mill wastewater | |
| EP4122574A1 (en) | Agent for lowering the phosphate content in waste waters | |
| JPH10489A (en) | Drainage treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |