CN104250036B - Utilize dephosphorization composite flocculation agent and preparation method and using method that red mud makes - Google Patents

Utilize dephosphorization composite flocculation agent and preparation method and using method that red mud makes Download PDF

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Publication number
CN104250036B
CN104250036B CN201310260537.7A CN201310260537A CN104250036B CN 104250036 B CN104250036 B CN 104250036B CN 201310260537 A CN201310260537 A CN 201310260537A CN 104250036 B CN104250036 B CN 104250036B
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China
Prior art keywords
red mud
flocculation agent
composite flocculation
mixed solution
preparation
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Expired - Fee Related
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CN201310260537.7A
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Chinese (zh)
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CN104250036A (en
Inventor
孟得磊
赵岩
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Shenyang Aluminum and Magnesium Engineering and Research Institute Co Ltd
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Shenyang Aluminum and Magnesium Engineering and Research Institute Co Ltd
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  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

The present invention relates to a kind of dephosphorization composite flocculation agent utilizing red mud to make and preparation method and using method.The faintly acid being made up of aluminum sulfate and red mud or neutral mixed solution.Advantages of the present invention effect: preparation method is simple, and phosphor-removing effect is good, and medicament preparation cost is low, is simultaneously achieved the recycling of combination method red mud, has significant economic benefit and social benefit.

Description

Utilize dephosphorization composite flocculation agent and preparation method and using method that red mud makes
Technical field
The present invention relates to a kind of dephosphorization composite flocculation agent utilizing red mud to make and preparation method and using method, by combination method red mud resource utilization, join in industrial wastewater reaction tank, to remove the high concentration phosphorus in waste water and float.The invention belongs to industrial waste water treatment.
Background technology
Red mud is produced garbage in aluminum oxide production process, often produces 1 ton of aluminium oxide and about produces red mud more than 1.5 tons, owing to China there is no effective industrialized treatment method before this, becomes a worldwide magazine difficult problem together.Substantial amounts of red mud can not sufficiently effective utilize, and large-area stockyard can only be relied on to stack, and occupies a large amount of soil, environment also causes serious pollution.The content of each composition of combination method red mud is: SiO2About about 20%, CaO40%, Al2O3About 10%, Fe2O3About 10%, temperature about 90 DEG C during discharge.
Summary of the invention
A kind of dephosphorization composite flocculation agent utilizing red mud to make and preparation method and using method is provided for solving the above-mentioned technical problem present invention, purpose utilizes the composite flocculation agent that combination method red mud and aluminum sulfate are Material synthesis, preparation method is simple, and phosphor-removing effect is good, reduces cost.
For reaching the dephosphorization composite flocculation agent that the above-mentioned purpose present invention utilizes red mud to make, the faintly acid being made up of aluminum sulfate and red mud or neutral mixed solution.
Utilize the preparation method of the dephosphorization composite flocculation agent that red mud makes, it is characterized in that: under conditions of stirring, the red mud that combination method produces is added in aluminum sulfate solution, measure the pH value of mixed solution simultaneously, as mixed solution pH value 6.0-7.2, stop adding red mud, cross leaching filtrate, i.e. obtain composite flocculation agent.
According to raw water quality, mixed solution is put in sewage, be then passed through mixing, flocculation reaction, precipitation, the most removable high concentration phosphorus and partial suspended thing.
The composite flocculation agent made adds immediately to mixing pit.
Advantages of the present invention effect: preparation method is simple, and phosphor-removing effect is good, and medicament preparation cost is low, is simultaneously achieved the recycling of combination method red mud, has significant economic benefit and social benefit.
Detailed description of the invention
Embodiment 1
Utilize the dephosphorization composite flocculation agent that red mud is made, the faintly acid mixed solution being made up of aluminum sulfate and red mud.
Utilize the preparation method of the dephosphorization composite flocculation agent that red mud makes, under conditions of stirring, in aluminum sulfate solution, add the red mud that combination method produces, measure the pH value of mixed solution simultaneously, when mixed solution pH value 6.0, stop adding red mud, cross leaching filtrate, i.e. obtain composite flocculation agent.
According to raw water quality, mixed solution is put in sewage, be then passed through mixing, flocculation reaction, precipitation, the most removable high concentration phosphorus and partial suspended thing.The composite flocculation agent made adds immediately to sewage mixing pit, utilizes waste heat contained by combination method red mud, can improve the flocculating effect of composite flocculation agent.
Embodiment 2
Utilize the dephosphorization composite flocculation agent that red mud is made, the neutral mixed solution being made up of aluminum sulfate and red mud.
Utilize the preparation method of the dephosphorization composite flocculation agent that red mud makes, under conditions of stirring, in aluminum sulfate solution, add the red mud that combination method produces, measure the pH value of mixed solution simultaneously, when mixed solution pH value 7.0, stop adding red mud, cross leaching filtrate, i.e. obtain composite flocculation agent.The other the same as in Example 1.
Embodiment 3
Utilize the dephosphorization composite flocculation agent that red mud is made, the neutral mixed solution being made up of aluminum sulfate and red mud.
Utilize the preparation method of the dephosphorization composite flocculation agent that red mud makes, under conditions of stirring, in aluminum sulfate solution, add the red mud that combination method produces, measure the pH value of mixed solution simultaneously, when mixed solution pH value 7.2 stops adding red mud, cross leaching filtrate, i.e. obtain composite flocculation agent.The other the same as in Example 1.

Claims (3)

1. utilize the dephosphorization composite flocculation agent that red mud is made, it is characterised in that the faintly acid being made up of aluminum sulfate and red mud or neutral mixed solution;Under conditions of stirring, in aluminum sulfate solution, add the red mud that combination method produces, measure the pH value of mixed solution simultaneously, as mixed solution pH value 6.0-7.2, stop adding red mud, cross leaching filtrate, i.e. obtain composite flocculation agent.
2. according to the using method utilizing dephosphorization composite flocculation agent that red mud makes described in claim 1, it is characterized in that according to raw water quality, mixed solution is put in sewage, be then passed through mixing, flocculation reaction, precipitation, the most removable high concentration phosphorus and partial suspended thing.
3. according to the using method utilizing dephosphorization composite flocculation agent that red mud makes described in claim 2, it is characterised in that the composite flocculation agent made adds immediately to mixing pit.
CN201310260537.7A 2013-06-27 2013-06-27 Utilize dephosphorization composite flocculation agent and preparation method and using method that red mud makes Expired - Fee Related CN104250036B (en)

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CN201310260537.7A CN104250036B (en) 2013-06-27 2013-06-27 Utilize dephosphorization composite flocculation agent and preparation method and using method that red mud makes

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CN104250036B true CN104250036B (en) 2016-08-10

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105152194A (en) * 2015-07-16 2015-12-16 中国铝业股份有限公司 Red mud separation and settlement method in alumina production
CN107043157A (en) * 2017-05-31 2017-08-15 成都原端新材料科技有限公司 Mineral dephosphorization agent and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955576A (en) * 1972-10-04 1974-05-29
JPS5881413A (en) * 1981-11-11 1983-05-16 Central Glass Co Ltd Preparation of inorg. flocculant
JPS6214984A (en) * 1985-07-15 1987-01-23 Mitsui Toatsu Chem Inc Method for adsorptive removal of phosphorus
KR20060079293A (en) * 2004-12-30 2006-07-06 태광케미칼 주식회사 Method for production of inorganic coagulant utilizing red mud
CN101665279A (en) * 2008-09-05 2010-03-10 中国科学院生态环境研究中心 Flocculating agent for removing phosphor with low concentration in water
CN101665278A (en) * 2008-09-05 2010-03-10 中国科学院生态环境研究中心 Compound phosphorus removal flocculating agent for water treatment
CN102115234A (en) * 2009-12-30 2011-07-06 中国科学院生态环境研究中心 Preparation method of flocculant capable of removing phosphate from red mud
CN103086489A (en) * 2013-02-07 2013-05-08 天津水泥工业设计研究院有限公司 Method for preparing flocculant polyaluminum ferric chloride from red mud

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955576A (en) * 1972-10-04 1974-05-29
JPS5881413A (en) * 1981-11-11 1983-05-16 Central Glass Co Ltd Preparation of inorg. flocculant
JPS6214984A (en) * 1985-07-15 1987-01-23 Mitsui Toatsu Chem Inc Method for adsorptive removal of phosphorus
KR20060079293A (en) * 2004-12-30 2006-07-06 태광케미칼 주식회사 Method for production of inorganic coagulant utilizing red mud
CN101665279A (en) * 2008-09-05 2010-03-10 中国科学院生态环境研究中心 Flocculating agent for removing phosphor with low concentration in water
CN101665278A (en) * 2008-09-05 2010-03-10 中国科学院生态环境研究中心 Compound phosphorus removal flocculating agent for water treatment
CN102115234A (en) * 2009-12-30 2011-07-06 中国科学院生态环境研究中心 Preparation method of flocculant capable of removing phosphate from red mud
CN103086489A (en) * 2013-02-07 2013-05-08 天津水泥工业设计研究院有限公司 Method for preparing flocculant polyaluminum ferric chloride from red mud

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