CN100431978C - Composite flocculant for treating water and its preparing process - Google Patents
Composite flocculant for treating water and its preparing process Download PDFInfo
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- CN100431978C CN100431978C CNB200610151090XA CN200610151090A CN100431978C CN 100431978 C CN100431978 C CN 100431978C CN B200610151090X A CNB200610151090X A CN B200610151090XA CN 200610151090 A CN200610151090 A CN 200610151090A CN 100431978 C CN100431978 C CN 100431978C
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- medical stone
- starch
- active medical
- aluminum chloride
- polymerize aluminum
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Abstract
The invention discloses a composite-typed flocculant and making method of water, which comprises the following steps: compounding medical stone, polyaluminium chloride and starch into flocculant; cleaning medical stone through drinking water; drying; grinding into 1-3mm; activating through electric furnace under 300-500 deg.c for 90min; cooling naturally; making the active medical stone; blending polyaluminium chloride and starch; stirring polyaluminium chloride and starch in the drinking water into paste under 20-30 deg.c; blending with active medical stone; adhering the surface of active medical stone evenly; drying the composition under normal pressure and temperature; forming the product; detecting to pack; fitting for disposing living water, industrial water and effluent.
Description
Affiliated technical field
The present invention relates to a kind of water treatment composite flocculant and preparation method thereof that is used for, relate in particular to a kind of water conditioner that is composited by medical stone, polymerize aluminum chloride and starch, belong to water-treatment technology field.
Background technology
At present, polymerize aluminum chloride has become international and domestic comparatively advanced efficient flocculant; Consumption is few, cost is low although polymerize aluminum chloride has, the advantage such as of fine quality, easy to use of purifying waste water, and in actual applications, still exists shortcomings such as flocculation rate is slow, the mud generation is bigger; At the processing of some waste water, polymerize aluminum chloride also exposes the inadequate shortcoming of flocculation, needs to unite use with other organic polymer coargulator, just can reach the ideal flocculating effect.In addition, the polymerize aluminum chloride raw material mainly depends on aluminium vanadine ore deposit, and China's aluminium vanadine Mineral resources are very limited, adds exploitation significantly in recent years, aluminium vanadine resource has been difficult to satisfy the ever-increasing demand in polymerize aluminum chloride market, and the cost of polymerize aluminum chloride is more and more higher; Therefore, be badly in need of a kind of can substitute or the resource in part substitution of Al vanadine ore deposit is produced this efficient flocculant.
Summary of the invention
In order to overcome above-mentioned deficiency, the object of the present invention is to provide a kind of flocculation agent that is composited with medical stone, polymerize aluminum chloride and starch, its feature is nontoxic, consumption is few, cost is low, and it is effective to purify water, and flocculation rate is fast, generation mud is few, and is easy to use, and adaptability is strong.
The present invention solves the technical scheme that its technical problem takes: it is formulated by following material and weight percent processing: active medical stone 80-90% polymerize aluminum chloride 5-10% starch 5-10%
Described active medical stone granularity is 1-3mm; Described polymerize aluminum chloride is a pressed powder, and granularity is 100 orders, and described starch is Powdered.
The preparation method:
A is ground into 1-3mm with selected medical stone after with the tap water cleaning, drying, and granularity is after screening, and with electric furnace baking activation, storing temperature is 300-500 ℃ again, and storing time is 90 minutes, and the back naturally cooling of coming out of the stove after the cooling, is made active medical stone, and is stand-by.
B mixes polymerize aluminum chloride with starch, the tap water of getting 20-30 ℃ stirs gelatinization with the two, mixes stirring with active medical stone again, and active medical stone surface is evenly adhered to.
C is dry under normal temperature, normal pressure with three's mixture, makes composite flocculation agent, detects packing.
The invention has the beneficial effects as follows: (1) flocculation rate is fast; The flocculation agent that the present invention proposes began flocculation in 1-2 minute adding the back, finished whole flocculation sediment process in 20 minutes; And during single use polymerize aluminum chloride, add and just began flocculation in back 5 minutes, finishing flocculation sediment then needs 2 hours.(2) the mud generation is few; The flocculation agent that the present invention proposes is compared with single use polymerize aluminum chloride in whole flocculation process, and the sludge quantity that is produced lacks 30%, reduces secondary pollution.(3) cost is low; Current, the market value of polymerize aluminum chloride is than higher, but also with further lifting, and medical stone and starch are cheap because of aboundresources; Can save polymerize aluminum chloride more than 85% at the composite flocculant that the present invention on the usage quantity proposes; Being suitable for domestic water, process water and sewage disposal uses.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples
Fig. 1 is the technological process of production figure that the present invention is used for water treatment composite flocculant and preparation method thereof.
Embodiment
Embodiment 1
The composite flocculant of handling domestic water is formulated by following raw material processing: (weight part)
80 kilograms of active medical stones, 10 kilograms of polymerize aluminum chlorides (solid-state), 10 kilograms of starch,
The preparation method is:
A is ground into 1-3mm with selected medical stone after with the tap water cleaning, drying, and granularity is after screening, and with electric furnace baking activation, storing temperature is 400 ℃ again, and storing time is 90 minutes, and the back naturally cooling of coming out of the stove after the cooling, is made active medical stone, and is stand-by.
B mixes 10 kilograms of polymerize aluminum chlorides with 10 kilograms of starch, the tap water of getting 30 ℃ stirs gelatinization with the two, mixes stirring with 80 kilograms of active medical stones again, and active medical stone surface is evenly adhered to.
C is dry under normal temperature, normal pressure with three's mixture, makes composite flocculation agent, detects packing.
With composite flocculation agent tap water is handled experiment.
Get 1000 milliliters of undressed tap water, get 5 gram composite flocculation agents and drop in the water, stirs and begin immediately after 2 minutes to flocculate, flocculation in 20 minutes finishes, and several of water indexs see Table 1 behind the flocculation sediment:
Table 1 is about the contrast of the data before and after the drinking water treatment
| Total plate count CFU/ml | Muriate mg/L | Iron mg/L | Manganese mg/L | Vitriol mg/L | Zinc mg/L | Arsenic mg/L | Plumbous mg/L | Mercury mg/L | Total α mg/L | Total β mg/L | |
| Before the experiment | 230 | 310 | 0.45 | 0.24 | 261 | 1.8 | 0.02 | 0.03 | 0.02 | 0.26 | 1.80 |
| After the experiment | 50 | 200 | 0.2 | 0.06 | 200 | 1.0 | 0.007 | 0.006 | 0.001 | 0.08 | 0.6 |
| CJ/T 206-2005 | ≤80 | 250 | 0.3 | 0.1 | 250 | 1.0 | 0.01 | 0.01 | 0.01 | 0.1 | 1.0 |
Embodiment 2,
The composite flocculant of handling industrial sewage is formulated by following raw material processing: (weight part)
90 kilograms of active medical stones, 5 kilograms of polymerize aluminum chlorides (solid-state), 5 kilograms of starch,
The preparation method is:
A is ground into 1-3mm with selected medical stone after with the tap water cleaning, drying, and granularity is after screening, and with electric furnace baking activation, storing temperature is 400 ℃ again, and storing time is 90 minutes, and the back naturally cooling of coming out of the stove after the cooling, is made active medical stone, and is stand-by.
B mixes 5 kilograms of polymerize aluminum chlorides with 5 kilograms of starch, the tap water of getting 30 ℃ stirs gelatinization with the two, mixes stirring with 90 kilograms of active medical stones again, and active medical stone surface is evenly adhered to.
C is dry under normal temperature, normal pressure with three's mixture, makes composite flocculation agent, detects packing.
With composite flocculation agent trade effluent is handled experiment.
2000 milliliters of water samples of trade effluent of getting flax raw material enterprise carry out water treatment, get 10 gram composite flocculation agents and drop in the water, stir after 2 minutes, begin flocculation immediately, and flocculation sediment finished in 40 minutes, and the data before and after the flocculation relatively see Table 2:
Data before and after the wastewater treatment of table 2 flax relatively
| SS(mg/L) | COD(mg/L) | BOD(mg/L) | |
| Before the flocculation | 238.00， 233.00， 168.00， 129.00 | 5.06×10 3， 4.70×10 3， 4.79×10 3， 5.10×10 3， | 2.97×10 3， 2.97×10 3， 3.00×10 3， 2.94×10 3， |
| After the flocculation | 12.00， 13.00， 12.00， 26.00， | 76.20 76.20 69.70， 70.10 | 11.28， 10.62 9.36 9.56， |
| GB8978-1996 | First discharge standard≤70 | First discharge standard≤100 | First discharge standard≤20 |
Main raw material of the present invention is a medical stone, medical stone be a kind of weathering or half weathering shallow-layer to the middle persilicic rock of super shallow-layer, contain multiple trace element, and have the function of good adsorption effect and stripping mineral substance the human body beneficial; Be harmless, have certain bioactive a kind of mineral substance health care remedies biological nontoxic.Medical stone has dual adsorptivity: be because it based on the chemical constitution of silicate, has certain adsorptivity on the one hand; On the other hand because medical stone contains clay minerals such as kaolinite, halloysite more, it is the spongy special construction of porousness, specific surface area is big especially, the intensive electrostatic attraction is arranged, thereby chlorine residue in heavy metal ion, organic compound, ammonium nitrogen, bacterium, the water, humic acid etc. are had very strong adsorptive power.China's maifanshi resource is very abundant, and almost all there are distribution in each province, city autonomous region.
Table 3 various places medical stone chemical ingredients/%
Select from " medical stone processing and application " Chemical Industry Press
Table 4 various places medical stone micronutrient levels/μ g.g
-1
| Numbering | 1 | 8 | 2 | 3 | 4 |
| The place of production | In exhaling 1 | In exhaling 8 | Longjiang | The Jiayin | China |
| Sr | 454 | 617 | 385 | 246 | 396 |
| Ba | 1043 | 1283 | 831 | 408 | 1324 |
| Co | 2.6 | 14.6 | 3.9 | 10.2 | 7.9 |
| Ni | 4.4 | 2.5 | 7.3 | 21.1 | 5.2 |
| Cu | 6.5 | 21.5 | 16.8 | 23.7 | 7.2 |
| Pb | 19.8 | 30.0 | 18.8 | 15.7 | 16.1 |
| Cr | 7.5 | 12.2 | 12.5 | 39.5 | 9.4 |
| Nb | 11.8 | 9.4 | 9.6 | 10.1 | 16.7 | |||
| Th | 19.7 | 13.4 | 12.7 | 9.0 | 15.3 | |||
| V | 21.9 | 69.3 | 37.6 | 48.2 | 37.1 | |||
| Zn | 58.9 | 173.1 | 59.6 | 63.2 | 70.1 | |||
| Zr | 309 | 285 | 262 | 148 | 536 | |||
| Rb | 92 | 80 | 80 | 78 | 91 | |||
| W | 1.36 | 0.92 | 0.78 | 1.55 | 5.08 | |||
| Mo | 0.94 | 1.48 | 1.28 | 1.04 | 1.68 | |||
| Ag | 0.09 | 0.16 | 0.10 | 0.08 | 0.07 | |||
| B | 5.6 | 18.0 | 24.5 | 25.0 | 4.4 | |||
| Cd | 0.06 | 0.82 | 0.096 | 0.082 | 0.106 | |||
| Sn | 1.1 | 2.2 | 1.9 | 1.9 | 2.1 | |||
| As | 10.0 | 11.5 | 7.7 | 14.1 | 4.9 | |||
| Sb | 0.96 | 0.82 | 0.77 | 2.01 | 0.94 | |||
| Hg | 0.015 | 0.015 | 0.025 | 0.03 | 0.015 | |||
| Bi | 0.06 | 0.16 | 0.10 | 0.10 | 0.06 | |||
| F | 500 | 440 | 500 | 461 | 513 | |||
| Li | 1.90 | 33.6 | 1.85 | 2.06 | 2.01 | |||
| Be | 15.2 | 2.2 | 20.2 | 50.6 | 17.7 | |||
| Se | 0.28 | 0.45 | 0.58 | 0.21 | ||||
| Au | 0.0014 | |||||||
| β ray/Bq.g -1 | 0.97 | 0.60 | 0.78 | 0.54 | 0.53 | |||
| Alpha-ray/Bq.g -1 | 1.01 | 1.57 | 0.13 | 1.16 | 1.77 |
Select from " medical stone processing and application " Chemical Industry Press
Active medical stone is the medical stone of activated art breading; Medical stone behind overactivation, has been sloughed water molecules because of its cage type hole skeleton crystal, has produced stable crystalline structure.The internal space of active medical stone is very abundant, has very big specific surface area, allows molecule freely to come in and go out, and can hold a considerable amount of adsorption molecules, thereby adsorptive capacity is increased.
Table 5 medical stone soak time is to the influence of absorption
| Time of drying/min | 30 | 60 | 90 | 120 | 180 |
| Adsorptive capacity/mg.g -1 | 1.040 | 1.090 | 1.290 | 1.270 | 1.030 |
Select from " medical stone processing and application " Chemical Industry Press
Table 6 activation temperature is to the influence of absorption
| Drying temperature/℃ | 200 | 250 | 300 | 350 | 400 | 450 |
| Adsorptive capacity/mg.g -1 | 1.040 | 1.090 | 1.100 | 1.150 | 1.290 | 1.270 |
Select from " medical stone processing and application " Chemical Industry Press
Annotate: medical stone granule: granularity 1-3mm 90min time of drying
The starch that the present invention uses, polyose the carbohydrate [(C that it is made up of glucose
6H
10O
5)
n]. starch has two effects in this flocculation agent: the one, with the polymerize aluminum chloride gelatinization and cohere, make it the trinity on active medical stone surface, and easy to use; The 2nd, after starch and the polymerize aluminum chloride mixing gelatinization, become cationic modified starch.This cationic modified starch can ionization go out positive charge in aqueous dispersions, electronegative material is had affinity, has effectively promoted the flocculation process.The action principle of flocculation agent of the present invention is: the superposition of electrically neutralization, absorption, surface hydrolysis, flco bonding and fluid shearing is comprehensive.
Claims (3)
1, a kind of water treatment composite flocculant that is used for; Comprise active medical stone, polymerize aluminum chloride, starch; It is characterized in that: it is formulated by following raw material and weight percent processing:
Active medical stone 80-90%; Polymerize aluminum chloride 5-10%; Starch 5-10%.
2, the water treatment composite flocculant that is used for according to claim 1; It is characterized in that: described active medical stone granularity is 1-3mm; Described polymerize aluminum chloride is a pressed powder, and granularity is 100 orders; Described starch is Powdered.
3, a kind of preparation method who is used for the water treatment composite flocculant as claimed in claim 1; It is characterized in that: A is ground into the 1-3mm granularity with selected medical stone after with the tap water cleaning, drying, after screening, again with electric furnace baking activation, storing temperature is 300-500 ℃, and storing time is 90 minutes, the back naturally cooling of coming out of the stove, after the cooling, make active medical stone, stand-by;
B mixes polymerize aluminum chloride with starch, the tap water of getting 20-30 ℃ stirs gelatinization with the two, mixes stirring with active medical stone again, and active medical stone surface is evenly adhered to;
C is dry under normal temperature, normal pressure with three's mixture, makes composite flocculation agent, detects packing.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200610151090XA CN100431978C (en) | 2006-11-29 | 2006-11-29 | Composite flocculant for treating water and its preparing process |
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| CNB200610151090XA CN100431978C (en) | 2006-11-29 | 2006-11-29 | Composite flocculant for treating water and its preparing process |
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| CN101007667A CN101007667A (en) | 2007-08-01 |
| CN100431978C true CN100431978C (en) | 2008-11-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105366777A (en) * | 2014-08-19 | 2016-03-02 | 武汉宏安伟立科技有限公司 | Method for preparing coal washing wastewater flocculant by using fly ash and pyrite sintered slag |
| CN105366781A (en) * | 2015-11-18 | 2016-03-02 | 安徽省环境科学研究院 | Water purification composite flocculating agent and preparation method and use method thereof |
| CN106745447A (en) * | 2016-11-25 | 2017-05-31 | 南宁市黑晶信息技术有限公司 | A kind of heavy metal-polluted water process flocculant |
| CN113998722B (en) * | 2021-11-25 | 2024-04-05 | 吉林省正达环保工程有限公司 | Preparation process of polyaluminium chloride coagulant for purifying wastewater |
| CN114100393A (en) * | 2021-11-25 | 2022-03-01 | 吉林省益能科技有限公司 | Preparation method of sodium hypochlorite composite solution |
| CN116835734B (en) * | 2023-07-18 | 2024-01-19 | 北京联发迈通科技有限公司 | Desulfurization wastewater integrated efficient flocculation medicament and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01242115A (en) * | 1988-03-18 | 1989-09-27 | Masato Tsukitatsu | Hybrid circulation bathtub system |
| CN1084139A (en) * | 1992-09-12 | 1994-03-23 | 付伟 | Water purifying agent |
| CN1123768A (en) * | 1994-11-28 | 1996-06-05 | 李少勇 | Composition for purifying and mineralizing drinking water |
| CN1335270A (en) * | 2001-08-27 | 2002-02-13 | 刘光城 | Water purifier and its prepn |
-
2006
- 2006-11-29 CN CNB200610151090XA patent/CN100431978C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01242115A (en) * | 1988-03-18 | 1989-09-27 | Masato Tsukitatsu | Hybrid circulation bathtub system |
| CN1084139A (en) * | 1992-09-12 | 1994-03-23 | 付伟 | Water purifying agent |
| CN1123768A (en) * | 1994-11-28 | 1996-06-05 | 李少勇 | Composition for purifying and mineralizing drinking water |
| CN1335270A (en) * | 2001-08-27 | 2002-02-13 | 刘光城 | Water purifier and its prepn |
Non-Patent Citations (1)
| Title |
|---|
| 闽东南麦饭石特征及其净化水环境应用探讨. 黄树峰，黄金喜.地质与勘探，第34卷第1期. 1998 * |
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