CN101716487A - Steel slag composite adsorbing agent and method for processing printing and dyeing wastewater - Google Patents

Steel slag composite adsorbing agent and method for processing printing and dyeing wastewater Download PDF

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Publication number
CN101716487A
CN101716487A CN200910265085A CN200910265085A CN101716487A CN 101716487 A CN101716487 A CN 101716487A CN 200910265085 A CN200910265085 A CN 200910265085A CN 200910265085 A CN200910265085 A CN 200910265085A CN 101716487 A CN101716487 A CN 101716487A
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Prior art keywords
slag
composite adsorbing
printing
dyeing
treatment
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CN200910265085A
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CN101716487B (en
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刘盛余
高瑾
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Chengdu University of Information Technology
Chengdu Information Technology Co Ltd of CAS
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Chengdu Information Technology Co Ltd of CAS
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Abstract

The invention discloses a preparation method for converting a solid waste resource into an adsorbing material, in particular to a method for preparing a steel slag composite adsorbing agent and a method for adsorbing and processing printing and dyeing wastewater. The steel slag composite adsorbing agent has favorable processing effect on the printing and dyeing wastewater, low cost, large adsorbing capacity and simple production process.

Description

The method of steel slag composite adsorbing agent and treatment of dyeing and printing thereof
Technical field
The present invention relates to a kind of reclamation of solid wastes and make the preparation method of sorbing material, relate in particular to the steel slag composite adsorbing agent preparation method and be used for the method for adsorption treatment dyeing waste water.
Technical background
Dyeing waste water is meant the waste water that textile products such as cotton, hair, chemical fibre are discharged in preliminary treatment, dyeing, stamp and arrangement process.The dyeing waste water complicated component, colourity is big, concentration is high, and the hard-degraded substance that contains is many, and biodegradability is low.Domestic dye wastewater treatment using is aided with chemical method simultaneously generally based on bioanalysis, but decolouring and COD poor removal effect, water outlet is difficult to the stable national specified discharge standard that reaches.Decolorizing printing and dyeing waste water method commonly used at present has absorption method, flocculence, oxidizing process, electrolysis and biochemical process etc., wherein absorption method is the common process of decoloring dye waste water, the high disposal cost of charcoal absorption is applied it and is very limited, and seeks the focus that efficient cheap sorbing material becomes various countries scholar extensive concern at present.
Slag is the byproduct of STEELMAKING PRODUCTION, and the slag generation rate is about the 15-20% of crude steel amount, and the output of steel of China in 2006 has been broken through 400,000,000 tons, annual nearly 8,000 ten thousand tons of the slag that produces.Slag is abandoned as refuse for a long time, has not only taken a large amount of soils but also polluted underground water.In recent years, by to Multipurpose Utilization of Steel Slag, more and more countries recognizes that slag no longer is a discarded object, but valuable resource.
At present to the research of steel slag utilization new way relatively more popular be to make sorbing material processing waste water.Compare with other sorbing materials, slag is loose porous, specific area is big, has certain adsorption capacity, and the density of slag is big, sinking speed in water is fast, be easy to Separation of Solid and Liquid, the wide material sources of slag belong to solid waste in addition, can provide cheap, use sorbing material easily, and can " treatment of wastes with processes of wastes against one another ", make it resource.But it substantially all is directly to utilize the slag porous that present slag is made adsorbent, and specific area is big, and the electronegative characteristic in surface is directly handled effluent containing heavy metal ions with slag as sorbing material.Owing to contain heavy metal ion such as iron, lead, mercury, chromium in the slag, as directly making sorbing material, how to prevent the heavy metal ion stripping in the slag, handled waste water is brought secondary pollution.In addition, slag is generally all by pulverize, and this is unfavorable for that water pollutes processing, and increases follow-up filtration treatment cost, needs the more compound clay materials of slag are made granular sorbing material for this reason.
Summary of the invention
The object of the present invention is to provide a kind of steel slag composite adsorbing agent, this steel slag composite adsorbing agent has good treatment effect to dyeing waste water, and with low cost, and adsorbance is big, and production technology is simple.
At first, utilize jaw formula or oppositely rolling roller crusher, and adopt dry type or wet screening classification to obtain the slag of 60-80 order granularity slag crushing.
Secondly, the slag that obtains is added respectively in the sulfuric acid that concentration is 0.5-3.0mol/L, vibrated filtering drying 1-1.5 hour.
Then, the slag of sour modification is mixed by 1: 1 to 3: 1 with bentonite, carry out roasting at the 500-700 degree; Make the slag composite adsorbing material of 3-5cm different-grain diameter.
At last, with the slag composite adsorbing material treatment of dyeing and printing for preparing, add the slag composite adsorbing material according to the 0.5-5% weight ratio in waste water, 5-20 minute adsorption treatment time, percent of decolourization reaches 98-99.5%, and the COD clearance is 80-85%.
The specific embodiment:
Embodiment 1
Take Sichuan and climb into steel converter shrend slag 10kg, by crusher in crushing, sieve into 60 purpose slags, be 1: 0.03 adding sulfuric acid according to slag and sulfuric acid weight ratio, vibrated 1.5 hours, filter, oven dry is 1 hour under the 60-80 degree, by slag and bentonite weight ratio is being 1: 2 adding bentonite, mix, make the particle of 3cm, roasting 1h under 500 degree prepares oarse-grained steel slag composite adsorbing agent.
Embodiment 2
Bulky grain compound adsorbent with embodiment 1 obtains takes by weighing 100g, adds 1m 3In certain dyeing waste water of double fluid of Sichuan, former water pH value is 8.61, and COD is 3830.1mg/L, and colourity is black, and through 10min absorption, the COD clearance is 82.5%, and percent of decolourization is 99.2%.Comparative test result before and after the absorption is seen accompanying drawing " effect of slag composite absorption actual dye wastewater "
Description of drawings
Figure is the effect of slag composite absorption actual dye wastewater

Claims (2)

1. steel slag composite adsorbing agent and treatment of dyeing and printing method thereof is characterized in that this method mainly may further comprise the steps:
(1), utilizes jaw formula or oppositely rolling roller crusher, and adopt dry type or wet screening classification to obtain the slag of 60-80 order granularity slag crushing.
(2), the slag that obtains is added respectively in the sulfuric acid that concentration is 0.5-3.0mol/L, vibrated filtering drying 1-1.5 hour.
(3), the slag of sour modification is mixed by 1: 1 to 3: 1 with bentonite, carry out roasting at the 500-700 degree; Make the slag composite adsorbing material of 3-5cm different-grain diameter.
(4), with the slag composite adsorbing material treatment of dyeing and printing for preparing, add the slag composite adsorbing material according to the 0.5-5% weight ratio in waste water, 5-20 minute adsorption treatment time, percent of decolourization reaches 98-99.5%, and the COD clearance is 80-85%.
2. steel slag composite adsorbing agent as claimed in claim 1 and treatment of dyeing and printing method thereof is characterized in that: slag comprises open hearth slag, converter slag and electric furnace slag.
CN 200910265085 2009-12-31 2009-12-31 Steel slag composite adsorbing agent and method for processing printing and dyeing wastewater Expired - Fee Related CN101716487B (en)

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CN101716487B CN101716487B (en) 2012-05-23

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Cited By (13)

* Cited by examiner, † Cited by third party
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CN102350296A (en) * 2011-10-26 2012-02-15 安徽工业大学 Preparation method of magnetic mesoporous adsorption material for cationic dye
CN102698708A (en) * 2012-05-24 2012-10-03 武汉工程大学 Method for preparing adsorbing material by modifying iron-based superfine powder composite material
CN103087719A (en) * 2013-01-15 2013-05-08 浙江大学 Preparation method, using method and application of ferrous poison control agent of cold waterlogged paddy field
CN103182292A (en) * 2013-04-08 2013-07-03 重庆大学 Novel Cr (VI) adsorbent and preparation method thereof
CN103508507A (en) * 2012-06-29 2014-01-15 南京理工大学 Method for removing metal ions in water by utilizing magnetically-separated steel slag tailings
CN104874402A (en) * 2015-04-20 2015-09-02 成都信息工程学院 Preparation of vanadium-titanium steel slag-based zinc ferrite catalyst and method for treating printing and dyeing wastewater
CN104888689A (en) * 2015-07-03 2015-09-09 武汉工程大学 Preparation method of modified iron-based adsorbing material
CN105293750A (en) * 2014-06-29 2016-02-03 上海梅山钢铁股份有限公司 Method for reducing industrial wastewater hardness with steelmaking waste slag
CN106824051A (en) * 2017-02-27 2017-06-13 北京科技大学 A kind of preparation method of nitrate adsorbent
CN107324473A (en) * 2017-06-24 2017-11-07 常州市宝平不绣钢制品有限公司 A kind of method that composite dephosphorizing agent is prepared based on converter slag
CN108554379A (en) * 2018-05-16 2018-09-21 辽宁大学 Adsorbent and its preparation method and application based on discarded slag
CN108854940A (en) * 2018-07-16 2018-11-23 南华大学 A kind of modified steel scoria adsorbent and application for uranium-containing waste water processing
CN109452125A (en) * 2018-11-15 2019-03-12 泉州师范学院 Utilize the method and its application of high calcium magnesium industry calcining waste material preparation pollution control bag

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101264441A (en) * 2008-05-09 2008-09-17 成都信息工程学院 Modified steel scoria adsorbent and preparation thereof

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350296B (en) * 2011-10-26 2013-04-24 安徽工业大学 Preparation method of magnetic mesoporous adsorption material for cationic dye
CN102350296A (en) * 2011-10-26 2012-02-15 安徽工业大学 Preparation method of magnetic mesoporous adsorption material for cationic dye
CN102698708A (en) * 2012-05-24 2012-10-03 武汉工程大学 Method for preparing adsorbing material by modifying iron-based superfine powder composite material
CN103508507A (en) * 2012-06-29 2014-01-15 南京理工大学 Method for removing metal ions in water by utilizing magnetically-separated steel slag tailings
CN103508507B (en) * 2012-06-29 2015-12-02 南京理工大学 The removal of the steel slag tailings after magnetic separation underwater gold is utilized to belong to the method for ion
CN103087719A (en) * 2013-01-15 2013-05-08 浙江大学 Preparation method, using method and application of ferrous poison control agent of cold waterlogged paddy field
CN103182292B (en) * 2013-04-08 2014-12-17 重庆大学 Novel Cr (VI) adsorbent and preparation method thereof
CN103182292A (en) * 2013-04-08 2013-07-03 重庆大学 Novel Cr (VI) adsorbent and preparation method thereof
CN105293750A (en) * 2014-06-29 2016-02-03 上海梅山钢铁股份有限公司 Method for reducing industrial wastewater hardness with steelmaking waste slag
CN104874402B (en) * 2015-04-20 2017-03-15 成都信息工程学院 The preparation of converter slag containing vanadium and titanium oxides base zinc ferrite catalyst and the method for processing dyeing waste water
CN104874402A (en) * 2015-04-20 2015-09-02 成都信息工程学院 Preparation of vanadium-titanium steel slag-based zinc ferrite catalyst and method for treating printing and dyeing wastewater
CN104888689A (en) * 2015-07-03 2015-09-09 武汉工程大学 Preparation method of modified iron-based adsorbing material
CN106824051B (en) * 2017-02-27 2019-03-29 北京科技大学 A kind of preparation method of nitrate adsorbent
CN106824051A (en) * 2017-02-27 2017-06-13 北京科技大学 A kind of preparation method of nitrate adsorbent
CN107324473A (en) * 2017-06-24 2017-11-07 常州市宝平不绣钢制品有限公司 A kind of method that composite dephosphorizing agent is prepared based on converter slag
CN108554379A (en) * 2018-05-16 2018-09-21 辽宁大学 Adsorbent and its preparation method and application based on discarded slag
CN108554379B (en) * 2018-05-16 2020-12-08 辽宁大学 Adsorbent based on waste steel slag and preparation method and application thereof
CN108854940A (en) * 2018-07-16 2018-11-23 南华大学 A kind of modified steel scoria adsorbent and application for uranium-containing waste water processing
CN109452125A (en) * 2018-11-15 2019-03-12 泉州师范学院 Utilize the method and its application of high calcium magnesium industry calcining waste material preparation pollution control bag

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