CN1018629B - High-molecular cpd. coagulant and prepn thereof - Google Patents
High-molecular cpd. coagulant and prepn thereofInfo
- Publication number
- CN1018629B CN1018629B CN 89107966 CN89107966A CN1018629B CN 1018629 B CN1018629 B CN 1018629B CN 89107966 CN89107966 CN 89107966 CN 89107966 A CN89107966 A CN 89107966A CN 1018629 B CN1018629 B CN 1018629B
- Authority
- CN
- China
- Prior art keywords
- industrial
- coagulant
- high molecular
- polyacrylamide
- activated carbon
- 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.)
- Expired
Links
Abstract
The present invention discloses a novel compound high molecular coagulant and a preparation method thereof. The compound high molecular coagulant is mainly prepared from basic aluminum chloride, basic aluminum sulfate, calcium sulphate, and organic high molecular polyacrylamide of activated carbon particles having strong adsorption capacity. The compound high molecular coagulant can be prepared by compounding industrial aluminum sulfate, industrial calcium chloride, industrial refining calcium hydroxide, powdered activated carbon and polyacrylamide, is especially suitable for treating seriously polluted industrial waste water containing emulsified oil, suspended solids, colloidal substances and surfactant, and has the characteristics of high efficiency, economy, etc.
Description
The present invention relates to a kind of NEW TYPE OF COMPOSITE high-molecular coagulant adopting, particularly a kind of composite macromolecule coagulant and a kind of method thereof that contains oil in water emulsion, suspended solids, colloidalmaterial and the with serious pollution trade effluent of surfactant of handling that be applicable to the chemical feedstocks preparation.
Soviet Union patent of invention SU-935-481 has announced a kind of technology that adopts Tai-Ace S 150 and cationic flocculant to handle industrial sewage.The main drawback of this invention is that its cationic flocculant is made complexity, costs an arm and a leg.Tai-Ace S 150 takes off steady ability to colloidal and is lower than aluminium chlorohydroxide (BAC).The organic cod content of handling the oil plant effuent in this inventive embodiment is 300mg/l only, and China's refinery milkiness waste water COD content is generally greater than 3000mg/l.In addition, the method of the processing industry milkiness waste water that West Germany DE-3211-128A patent is announced is at first to drop into polymerize aluminum chloride (PAC) flocculation agent of doses to milkiness waste water, adds then and contains one or more polymeric amide, polyethylene, polyacrylamide or polyacrylate.The shortcoming of this method is that the polymerization degree of polymerize aluminum chloride is less, and the pharmaceutical quantities of therefore handling milkiness water is bigger, needs after the coagulating treatment just can obtain limpid water through filtration treatment again, and (PAC) need add at twice with organic floculant.
Main purpose of the present invention provides a kind of efficient, economic NEW TYPE OF COMPOSITE high-molecular coagulant adopting, be used for handling and contain the with serious pollution trade effluent of oil in water emulsion, suspended solids, colloidalmaterial and surfactant, a kind of method of preparing this coagulating agent with chemical feedstocks is provided simultaneously.
The major ingredient of composite macromolecule coagulant of the present invention is inorganic polymer aluminium chlorohydroxide, basic aluminium sulphate, calcium sulfate and has the organic polymer polyacrylamide with the active extensive particle of strong adsorptive power.After composite macromolecule coagulant added in the entry, inorganic polymer wherein (aluminium chlorohydroxide, basic aluminium sulphate) hydrolysis produced CL
-, SO
= 4And having the aluminium hydroxide polymkeric substance that the high price positive charge contains the coordinated water molecule, the aluminium hydroxide polymkeric substance that at this moment has the high price positive charge takes off surely the colloidalmaterial charge neutrality that contains in the water, and plays an attached frame bridge effect.In addition, the active group SO of hydrolysis generation
= 4Aluminium hydroxide crosslinked polymer shape molecular chain degree of crosslinking is increased, and molecular chain increases, and specific area increases, and only attached ability improves, thereby has increased the ability and the decolorization of dissolved organic matter in the coagulating agent removal water.
The calcium sulfate that composite macromolecule coagulant contains has been accelerated coagulating speed as causing absurd creature matter.
Produce thread-like molecular chain after the organic polymer hydrolysis that composite macromolecule coagulant contains, under the common condition that exists of the active particle that strong absorption property is arranged, adsorption activity point on the thread-like molecular chain is increased, thereby strengthened the adsorption bridging effect, the alumina blossom particles increase that making flocculates forms, closely knit, good with the water sepn performance, it is little to separate the after stain volume.
Though inorganic polymer and organic polymer in the composite macromolecule coagulant mix, drop into simultaneously during use in the water that needs to handle, but the present invention has utilized the decalage of inorganic polymer and organic polymer dissolution rate in water, can make the electrostatic double layer of (the milkiness material) colloidal solid in the inorganic polymer compression sewage equally, reduce the effect of basic current potential and organic macromolecule adsorption bridging and act in the flocculation process and carry out in phase.
Composite macromolecule coagulant of the present invention can be composited by industrial aluminum sulphate, industrial calcium chloride, the refining calcium hydroxide of industry, powdered carbon and five kinds of raw materials of anion-polyacrylamide, wherein industrial aluminum sulphate accounting example is 70～90%, the industrial calcium chloride proportion is 5～20%, the refining calcium hydroxide proportion of industry is 4～15%, the powdered carbon proportion is 0.5～5%, and the polyacrylamide proportion is 0.5～5%.In above-mentioned five kinds of raw materials, industrial aluminum sulphate and industrial calcium chloride are ground into fine particle, with other components in certain proportion batchings,, can be combined into composite macromolecule coagulant in the mixed reaction of the condition of normal temperature and pressure.
The present invention is further detailed explanation below in conjunction with embodiment
1. certain refinery milkiness state trade effluent, its water quality is: COD=3120mg/l, oil in water emulsion=140.5mg/l, suspended substance=352mg/l, transmittance=58%, pH=7.9.(its material rate is an industrial aluminum sulphate: industrial calcium chloride: the refining calcium hydroxide of industry: powdered carbon: polyacrylamide=78: 10: 8: 2: 2) handle to add composite macromolecule coagulant, its dosage is 200mg/l, handling the back water quality condition is COD=451mg/l, clearance reaches 84.5%, oil in water emulsion=19.2mg/l, clearance reaches 86.3%, suspended substance=10mg/l clearance reaches 97.2%, it is limpid that the pH=6.8 coagulating sedimentation is handled back water quality, near tap water, transmittance brings up to 98%.
2. certain sewage from oil refinery water quality condition is COD=4200mg/l, and transmittance=32% adds composite macromolecule coagulant 300mg/l, and it is limpid to handle back water quality, and transmittance brings up to 92%, and COD is reduced to 619mg/l, and clearance is 85.3%.
Process trade effluent with composite macromolecule coagulant provided by the invention and have the characteristics such as reaction speed is fast, the efficient height is removed in the impurity place to go, the rear sludge volume of processing is little, and this composite macromolecule coagulant preparation is easy, cost is low.
Claims (1)
1, a kind of composite macromolecule coagulant of handling industrial sewage is characterized in that the mixture that it is made up of 70～90% industrial aluminum sulphates, 5～20% industrial calcium chloride, 4～15% the refining calcium hydroxide of industry, 0.5～5% powdered activated carbon and anion-polyacrylamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89107966 CN1018629B (en) | 1989-10-21 | 1989-10-21 | High-molecular cpd. coagulant and prepn thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89107966 CN1018629B (en) | 1989-10-21 | 1989-10-21 | High-molecular cpd. coagulant and prepn thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1051157A CN1051157A (en) | 1991-05-08 |
| CN1018629B true CN1018629B (en) | 1992-10-14 |
Family
ID=4857402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89107966 Expired CN1018629B (en) | 1989-10-21 | 1989-10-21 | High-molecular cpd. coagulant and prepn thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018629B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039002C (en) * | 1995-06-09 | 1998-07-08 | 杰-普罗塞斯厄斯有限公司 | Magnesium ion containing flocculating agents for waste water treatment and method for preparation thereof |
| JP4515273B2 (en) * | 2005-01-27 | 2010-07-28 | 株式会社ミクニ | Condensation separation purification agent and purification method of polluted waste water |
| CN101918961B (en) | 2007-11-14 | 2015-05-06 | 潘吉瓦公司 | Evaluating public records of supply transactions |
| CN101456613B (en) * | 2008-10-30 | 2010-06-16 | 芜湖凯奥尔环保科技有限公司 | Composite powdery calcium sulphate sewage treating agent and preparation method thereof |
| CN101633527B (en) * | 2009-08-26 | 2012-06-20 | 武汉金坡环境工程有限公司 | Composite type polymeric flocculant |
| CN101857352A (en) * | 2010-06-13 | 2010-10-13 | 东南大学 | Conditioning coagulant for deep dehydrating sludge |
| CN103183395B (en) * | 2013-03-18 | 2014-05-07 | 庞红信 | Decolorizing trapping agent |
| CN104609485A (en) * | 2015-01-30 | 2015-05-13 | 无锡昊瑜节能环保设备有限公司 | Compound water-purifying agent |
| CN105731590B (en) * | 2016-02-24 | 2018-06-26 | 中国海洋石油集团有限公司 | A kind of water cleaning agent composite synergistic system and the method that viscoelastic greasy filth is avoided to generate |
| CN108975420A (en) * | 2017-06-05 | 2018-12-11 | 艺康美国股份有限公司 | COD (COD) removes mixture of powders |
| CN110078183B (en) * | 2019-04-18 | 2020-09-18 | 北京大学 | Solid inorganic-organic covalent bond type hybrid flocculant and preparation method and application thereof |
-
1989
- 1989-10-21 CN CN 89107966 patent/CN1018629B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1051157A (en) | 1991-05-08 |
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