CN101134633A - Material and method for materialized sludge deweighting process - Google Patents
Material and method for materialized sludge deweighting process Download PDFInfo
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- CN101134633A CN101134633A CNA2007100253880A CN200710025388A CN101134633A CN 101134633 A CN101134633 A CN 101134633A CN A2007100253880 A CNA2007100253880 A CN A2007100253880A CN 200710025388 A CN200710025388 A CN 200710025388A CN 101134633 A CN101134633 A CN 101134633A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The sludge reducing treating material includes at least one acid matter, at least one metal ion and at least one RE element. The acid matter is organic acid or inorganic acid with hydrogen ion accounting for 5-15 wt% of the material; the metal ion is selected from Na, K, Ca, Fe, Al, Mg and Zn and accounts for 10-20 wt% of the material; and the RE element accounts for 0.1-0.5 wt%. The sludge reducing treating method includes pressure filtering sludge, mixing the sludge with the treating material through stirring or ball milling, and pressure filtering to dewater. The present invention is used mainly in sludge from sewage treatment.
Description
Technical field
The present invention relates to and be used in the environmental protection field materialized mud that the back of disposing of sewage produces is carried out the material of minimizing processing and utilizes this material that materialized mud is carried out the method that minimizing is handled.
Background technology
Along with the renewal of the sound and water technology facility of constantly perfect, the supervisory system of environmental protection in recent years legislation, China's environmental quality has had tangible improvement.When suitability for industrialized production produces the sewage emissions amount and rises year by year, wastewater treatment rate, compliance rate are also improving year by year, the total amount of the materialized mud that sewage stays is after treatment also increasing considerably, this has become a stern reality, pendulum water treatment enterprises and institutions in face of, properly settle innoxious, the minimizing of materialized mud, extremely urgent.At above-mentioned situation, traditional way is both at home and abroad at present: materialized mud is burned or landfill.When handling materialized mud with the method for burning, though materialized mud burns the volume of the final materialized mud residue that can reduce formation significantly, but because the water content of materialized mud is generally all more than 85%, the materialized mud of high-moisture like this is burned the energy that needs consumption a large amount of, and the ion that is contained in the materialized mud is in the high temperature incineration process, meeting heavy corrosion combustion chamber and air channel, therefore also very harsh to the requirement of equipment, facility investment is big, and is also very high to site operation personnel's technical requirements; Simultaneously, materialized mud itself is through flocculation and the aggregate of the colloidal solid of formation, during burning, colloidal solid will be transformed into dust, form secondary pollution, and burn materialized mud and can produce, be considered to and produced potential threat to environment as environmental hormones such as titanium dioxide glutinous rehmannias.And when handling materialized mud with the method for landfill, site requirements to the landfill materialized mud is higher, to prevent that percolate, microorganism in the materialized mud from polluting underground water body on the one hand, also will consider the secondary pollution of the materialized mud fermentation gas that forms on the other hand.
Summary of the invention
First technical problem to be solved by this invention is: provide a kind of being used for that materialized mud is carried out the material that minimizing is handled.
Another technical problem to be solved by this invention is: provide a kind of materialized mud is carried out the method that minimizing is handled.
For solving above-mentioned first technical problem, the technical solution used in the present invention is: the material that the materialized mud minimizing is handled, comprise: at least a acidic substance, at least a metal ion and at least a rare earth element, wherein: acidic substance are organic acid or mineral acid, its hydrogen ion accounts for 5～15% of material total mass, metal ion is selected from: sodium, potassium, calcium, iron, aluminium, magnesium or zinc, account for 10～20% of material total mass, and rare earth element accounts for 0.1～0.5% of material total mass.
Above-mentioned mineral acid is hydrochloric acid and sulfuric acid, and described organic acid is oxalic acid, tartrate and citric acid.
For solving above-mentioned another technical problem, the technical solution used in the present invention is: the method that the materialized mud minimizing is handled, the steps include: to add above-mentioned materials in the materialized mud after handling through press filtration, and with its mix with materialized mud, after stirring or the ball-milling processing, send into pressure filter and carry out the filter-press dehydration processing, obtain the doping mud and the by-product press filtration liquid of minimizing.
The invention has the beneficial effects as follows: material of the present invention is added in the materialized mud, utilizing method of the present invention that materialized mud is carried out minimizing handles, the doping mud that obtains is only for handling 1/3～1/5 of the materialized mud that obtains by conventional minimizing, water ratio is 30%～45% only, is convenient to the natural drying drying treatment; And the subsidiary product press filtration liquid that obtains is a kind of efficient composite flocculation agent, and its flocculating property is splendid.In addition, the doping mud that obtains after the present invention of materialized mud process handles has solved its calorific value in the process of banking up and has reduced, is unfavorable for burning, has produced problems such as foul smell; And the infrared effect of the rare earth in the doping mud and the oxygenizement of metal ion, in doping sludge incineration process, good combustion-supporting effect can be played, thereby processing cost can be reduced.
Embodiment
Be below preparation materialized mud minimizing of the present invention material three specific embodiments and utilize this material that materialized mud is carried out the method that minimizing is handled:
Embodiment 1:
The material of materialized mud minimizing disposes according to following proportioning: 10% technical hydrochloric acid, 5%FeCl
2, 5%AlCl
3, 0.01%LaCl
3, water surplus.Above-mentioned substance is added in the reactor, stirred 0.5 hour, the material that obtains the materialized mud minimizing is acid, colourless or light green transparent liquid, and density is 1.10 grams per milliliters.
Embodiment 2
The material of materialized mud minimizing disposes according to following proportioning: 6% industrial sulphuric acid, 10%FeCl
2, 3%AlCl
3, 19.5%MgCl
2, 0.01%NdCl
3, water surplus.Above-mentioned substance is added in the reactor, stirred 0.5 hour, the material that obtains the materialized mud minimizing is acid, colourless or light brown transparent liquid, and density is 1.12 grams per milliliters.
Embodiment 3
The material of materialized mud minimizing disposes according to following proportioning: 5% oxalic acid, 5% technical hydrochloric acid, 8%FeCl
2, 0.01%NdCl
3, water surplus.Above-mentioned substance is added in the reactor, stirred 0.5 hour, the material that obtains the materialized mud minimizing is acid, colourless or lavender transparent liquid, and density is 1.12 grams per milliliters.
The method of materialized mud minimizing of the present invention, the steps include: that the materialized mud that will form is transferred in mixing pit or the ball mill after pressure filter is handled, and then in materialized mud, add material by above-mentioned any embodiment prepared, after mixing, stirring or ball milling, filter-press dehydration processing, obtain the mud that mixes, its water ratio is 30%～45%, and the also subsidiary in addition press filtration liquid that obtains is a kind of efficient composite flocculation agent.
Salting-out effect, metal ion mating reaction, rare earth-activated effect and synergistic function each other thereof between the acidic substance of the material of materialized mud minimizing of the present invention by wherein, metal ion, the rare earth element, can the destroy microorganisms cytolemma, cause that the moisture that is contained in the cell to external diffusion, plays the effect of materialized mud minimizing and sterilization and disinfection.The doping mud that obtains is only for handling 1/3～1/5 of the materialized mud that obtains by conventional minimizing, the water ratio of this doping mud is 30%～45%, solved the calorific value of materialized mud in the process of banking up and reduced, produce problems such as foul smell, maximum amplitude ground keeps the calorific value of materialized mud; And the infrared effect of the doping mud middle-weight rare earths after the decrement, the oxygenizement of metal ion, in the sludge incineration process, can play good combustion-supporting effect.
The press filtration liquid that obtains in the sludge reduction treating processes is a kind of efficient composite flocculation agent, and when being applied to the flocculation treatment of dyeing waste water, effect is splendid, thereby finally realizes sludge reduction, the recycling of innoxious and press filtration liquid.
Claims (3)
1. the material handled of materialized mud minimizing, comprise: at least a acidic substance, at least a metal ion and at least a rare earth element, wherein: acidic substance are organic acid or mineral acid, its hydrogen ion accounts for 5 of material total mass～1 5%, metal ion is selected from: sodium, potassium, calcium, iron, aluminium, magnesium or zinc, account for 10～20% of material total mass, rare earth element accounts for 0.1～0.5% of material total mass.
2. the material that materialized mud minimizing as claimed in claim 1 is handled, it is characterized in that: described mineral acid is hydrochloric acid and sulfuric acid, described organic acid is oxalic acid, tartrate and citric acid.
3. the method handled of materialized mud minimizing, the steps include: to add the described material of claim 1 in the materialized mud after handling through press filtration, and with its mix with materialized mud, after stirring or the ball-milling processing, send into pressure filter and carry out the filter-press dehydration processing, obtain the doping mud and the by-product press filtration liquid of minimizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710025388A CN101134633B (en) | 2007-07-27 | 2007-07-27 | Material and method for materialized sludge deweighting process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710025388A CN101134633B (en) | 2007-07-27 | 2007-07-27 | Material and method for materialized sludge deweighting process |
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| Publication Number | Publication Date |
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| CN101134633A true CN101134633A (en) | 2008-03-05 |
| CN101134633B CN101134633B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710025388A Expired - Fee Related CN101134633B (en) | 2007-07-27 | 2007-07-27 | Material and method for materialized sludge deweighting process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979350A (en) * | 2010-11-01 | 2011-02-23 | 江苏宜净环保有限公司 | Physical and chemical sludge recycling and reducing method |
| CN102795749A (en) * | 2012-08-31 | 2012-11-28 | 中持依迪亚（北京）环境研究所有限公司 | Mechanochemical treatment method and system for sludge |
| CN103288316A (en) * | 2013-07-02 | 2013-09-11 | 湖南中天诚环保科技有限公司 | In-plant decrement treatment method for urban sludge |
| CN104926077A (en) * | 2015-06-24 | 2015-09-23 | 深圳市水务(集团)有限公司 | Municipal sludge deep dewatering series combination medicament and method for applying same |
| CN105060656A (en) * | 2015-09-10 | 2015-11-18 | 苏州金桨节能与环保科技有限公司 | Biochemical system auxiliary device and application thereof |
| CN107445424A (en) * | 2017-08-07 | 2017-12-08 | 东华大学 | It is a kind of to realize the debirs thermocatalytic efficiently device of decrement and recycling |
| CN111670863A (en) * | 2020-07-06 | 2020-09-18 | 河北北方学院 | Lamb fattening method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075008A (en) * | 1977-04-04 | 1978-02-21 | United States Steel Corporation | Method for the reclamation of zinc from galvanizing baths |
| CN1108885C (en) * | 2000-06-06 | 2003-05-21 | 广东工业大学 | Technological process using electroplating sludge as resource to make harmless treatment |
| CN1203930C (en) * | 2003-07-14 | 2005-06-01 | 浙江省农业科学院 | Method for treating organic material without ferment process |
| CN1718784A (en) * | 2005-07-07 | 2006-01-11 | 孙涛 | Method of recovery copper, nickel and noble metal in waste water and slag by combined technology of wet method and fire method |
| CN100402676C (en) * | 2006-03-24 | 2008-07-16 | 浙江工业大学 | Method for recovering valuable metals from electroplating sludge |
-
2007
- 2007-07-27 CN CN200710025388A patent/CN101134633B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979350A (en) * | 2010-11-01 | 2011-02-23 | 江苏宜净环保有限公司 | Physical and chemical sludge recycling and reducing method |
| CN101979350B (en) * | 2010-11-01 | 2012-07-11 | 江苏宜净环保有限公司 | Physical and chemical sludge recycling and reducing method |
| CN102795749A (en) * | 2012-08-31 | 2012-11-28 | 中持依迪亚（北京）环境研究所有限公司 | Mechanochemical treatment method and system for sludge |
| CN103288316A (en) * | 2013-07-02 | 2013-09-11 | 湖南中天诚环保科技有限公司 | In-plant decrement treatment method for urban sludge |
| CN104926077A (en) * | 2015-06-24 | 2015-09-23 | 深圳市水务(集团)有限公司 | Municipal sludge deep dewatering series combination medicament and method for applying same |
| CN105060656A (en) * | 2015-09-10 | 2015-11-18 | 苏州金桨节能与环保科技有限公司 | Biochemical system auxiliary device and application thereof |
| CN107445424A (en) * | 2017-08-07 | 2017-12-08 | 东华大学 | It is a kind of to realize the debirs thermocatalytic efficiently device of decrement and recycling |
| CN111670863A (en) * | 2020-07-06 | 2020-09-18 | 河北北方学院 | Lamb fattening method |
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| Publication number | Publication date |
|---|---|
| CN101134633B (en) | 2012-10-03 |
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Address after: 265400 Zhaoyuan Jinlong Road, Shandong, No. 39 Patentee after: Shandong Jin Hui film Science and Technology Co., Ltd. Address before: 265400 Zhaoyuan Jinlong Road, Shandong, No. 39 Patentee before: ZhaoyuanJinhui Membrane Science & Technology Co., Ltd. |
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