CN1486940A - Composite stuffing for sewage treating biofilm process - Google Patents

Composite stuffing for sewage treating biofilm process Download PDF

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Publication number
CN1486940A
CN1486940A CNA03140183XA CN03140183A CN1486940A CN 1486940 A CN1486940 A CN 1486940A CN A03140183X A CNA03140183X A CN A03140183XA CN 03140183 A CN03140183 A CN 03140183A CN 1486940 A CN1486940 A CN 1486940A
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China
Prior art keywords
compounded mix
sewage
pore
base material
flyash
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CNA03140183XA
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CN1199880C (en
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涉 张
张涉
陆晓春
朱兆华
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Shenzhen Longcheng High Tech Environmental Protection Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Biological Treatment Of Waste Water (AREA)

Abstract

The composite stuffing for sewage treating biofilm process consists of basic material 48-68 wt%, pore-creating agent ammonium sulfate 3-7 wt% and binder cement 35-45 wt%; and the basic material is active carbon, expansive vermiculite, sepiolite, zeolite, flyash or similar matter or their mixture in any proportion. The composite stuffing is prepared through crushing the material to 100-200 meshes, mixing, spraying hot water at 55-65 deg.c and pelletizing, solidification at 40-70 deg.c, and curing at normal temperature to obtain the composite stuffing with particle size of 3-20 mm, pore size of 20-200 microns and specific surface area 50-200 sq m/g. The composite stuffing has good hydrophilicity, high biological film-attaching effect, great specific surface area and other advantages; and may be used to treat various kinds of sewage to high drainage standard.

Description

The compounded mix that is used for the sewage disposal biomembrane process
Technical field the present invention relates to a kind of compounded mix that is used for the sewage disposal biomembrane process, more particularly, relate to a kind of compounded mix that is suitable for handling the applying biological membrane process of city domestic sewage, lake and river micro-polluted water and various industrial wastewater treatment systems.
Background technology in the prior art, biomembrane process is a Technology commonly used in the sewage disposal, this technology is to have stable, anti-shock loading, processing efficiency advantages of higher, filler is as the core of biomembrane process, directly have influence on the technique effect of biomembrane process, filler as microbe carrier must possess low density, bigger serface, open grain, high-hydrophilic, enough wear resistancies, enough physical and chemical performances such as chemical stability, and raw material sources are extensive, low production cost.Be applied to the coordination that the filler of biomembrane process such as haydite, polystyrene spherolite, combined stuffing, elastic solid filler etc. are difficult to reach performance and cost at present.Haydite has bigger specific surface area and porosity, has bio-film colonization performance preferably, but since this filler adopt stand clay and make ball after high-temperature roasting form, its yield rate is low, production cost is higher; The polystyrene spherolite is that raw material carries out chemical granulation with vinylbenzene, and its production cost is more lower slightly than haydite, but its wetting ability is poor, the bio-film colonization degradation; Combined stuffing and elastic solid filler respectively with fine and closely woven pencil vinylon silk or plastics silk as carrier, its unit volume filler production cost is lower, but its wetting ability, biofilm effect, specific surface area and unit specific surface area production cost are all not as haydite, and the application of above filler is restricted.
Summary of the invention the object of the present invention is to provide a kind of than lower production cost, low density, bigger serface, open grain, strongly hydrophilic, is particularly suitable for the compounded mix that the sewage disposal biomembrane process is used.
In order to achieve the above object, the invention provides following technical scheme: develop a kind of compounded mix, contain mineral substrate, the composition of filler and weight percentage are: base material 48%~68%, pore-forming material 3%~7%, cement bond agent 35%~45%, described base material is a gac, expanded vermiculite, sepiolite, zeolite, the mixture of one or more arbitrary proportions of flyash or its analogue, described pore-forming material is an ammonium sulfate, it is 100~200 orders that described each component quantifying is crushed to granularity, mix, spray 55~65 ℃ of hot water and make ball, 40~70 ℃ condense, ambient cure, get particle diameter 3~20mm, micro-pore diameter 20~200 μ m micropores, specific surface area 50~200m 2The compounded mix of/g.In addition, the apparent density 1.0~1.5g/cm of compounded mix of the present invention 3, porosity 35~55%, specific surface area 50~200m 2/ g, broken wear rate<2%, sour molten rate<2%, the molten rate of alkali<1%.Described mineral substrate comprises such as wilkinite, limonite, vermiculite, diatomite, perlite, sepiolite, clay, slag, flyash, vitriol industry soaks natural and artificial mineral's powder and analogues thereof such as slag, and this class filler main chemical is SiO 2, Al 2O 3, CaO, MgO, K 2O, Fe 2O 3Deng not containing harmful heavy metal and other objectionable impurities, the porosity height is the ideal compounded mix.In making ball, can use light-weight filler to make ball, core is a porous organic or inorganic material, in order to reduce the density of filler, the granularity of core is about 1/3 of a filler granularity.
The present invention's technical scheme preferably is: each composition and weight percentage in the base material of compounded mix are: gac 11%~23%, expanded vermiculite 7%~12%, sepiolite 16%~27%, zeolite 8%~14%, flyash 33%~50%.In described base material, comprise pore-forming material and cement bond agent, material chemical ingredients and content in the compounded mix are: SiO 231%-33%, Al 2O 313%-14%, CaO33%-36%, MgO2%-3%, K 2O1%-2%, NO 20.1%-0.3%, Fe 2O 34%-6%, Pb, Zn, Cu are a small amount of.Under this kind situation, the biofilm efficient of filler, physical and chemical performance is good, the nitrated performance of ammonia nitrogen is excellent and cost is low, this kind filler can be according to look, flavor character and the heavy metal ion content of sewage simultaneously, suitably adjust the mineral prescription, to reach except that look, to remove to distinguish the flavor of, reduce the technological effect of heavy metal content.
The application of compounded mix of the present invention: be used for biological film sewage treatment process, sewage is carried out bio-oxidation, decolouring, taste removal and reduces the heavy metal content of sewage.Compounded mix of the present invention is applied to biomembrane process, can guarantee water outlet COD Cr≤ 40mg/L, BOD 5≤ 10mg/L, SS≤10mg/L, NH 3-N≤10mg/L, the sewage after the processing reach national sewage discharge primary standard.
Compared with prior art, the present invention has following tangible advantage: described compounded mix and haydite, the polystyrene spherolite, elastic solid filler and other compounded mix are compared, its production cost is 50% of a haydite, 60% of polystyrene spherolite, 70% of combined stuffing, 80% of elastic solid filler, filler biofilm efficient is 110% of haydite, 150% of polystyrene spherolite, 180% of combined stuffing, 200% of elastic solid filler, its physical and chemical performance is better than haydite, and the nitrated performance of ammonia nitrogen obviously is better than haydite, and this kind filler can be according to the look of sewage simultaneously, flavor character and heavy metal ion content, suitably adjust the mineral prescription, to reach except that look, remove flavor, reduce the technological effect of heavy metal content.Compounded mix of the present invention is applied to biomembrane process, can guarantee water outlet COD Cr≤ 40mg/L, BOD 5≤ 10mg/L, SS≤10mg/L, NH 3-N≤10mg/L reaches national sewage discharge primary standard.
By specific embodiment the present invention is carried out more detailed description below the embodiment:
The manufacturing of embodiment 1 compounded mix
Example 1-1
Get base material gac 10Kg, expanded vermiculite 6Kg, flyash 32Kg adds up to 48Kg, it is that 100 orders, mixing, 65 ℃ of hot water of spray make that ball, 65 ℃ condense, ambient cure that ammonium sulfate 5Kg, cement 43Kg, each component quantifying are crushed to granularity, get particle diameter 10mm, micro-pore diameter 80 μ m micropores, specific surface area 100m 2The compounded mix of/g.Wherein contain base material 50%, pore-forming material 5.2%, cement bond agent 44.8%.
Example 1-2
Get base material expanded vermiculite 7Kg, sepiolite 25Kg, zeolite 13Kg, flyash 20Kg adds up to 65Kg, ammonium sulfate 5Kg, it is that 150 orders, mixing, 55 ℃ of hot water of spray make that ball, 40 ℃ condense, ambient cure that cement 40Kg, each component quantifying are crushed to granularity, particle diameter 8mm, micro-pore diameter 180 μ m micropores, specific surface area 100m 2The compounded mix of/g.Wherein contain base material 59%, pore-forming material 4.55%, cement bond agent 36.36%.
Example 1-3
Get gac 7Kg, expanded vermiculite 5Kg, sepiolite 14Kg, zeolite 6Kg, flyash 31Kg, add up to 63Kg, ammonium sulfate 5Kg, cement 40Kg, it is that 200 orders, mixing, 60 ℃ of hot water of spray make that ball, 55 ℃ condense, ambient cure that each component quantifying is crushed to granularity, get particle diameter 3mm, micro-pore diameter 30 μ m micropores, specific surface area 180m 2The compounded mix of/g.Wherein contain base material 58.33%, pore-forming material 4.63%, cement bond agent 37.03%.The content of a composition in the base material: gac 11%, expanded vermiculite 7.93%, sepiolite 22.22%, zeolite 9.52%, flyash 49.2%.
Example 1-4
Get gac 13Kg, expanded vermiculite 8Kg, sepiolite 17Kg, zeolite 8Kg, flyash 24Kg, add up to 70Kg, ammonium sulfate 3Kg, cement 30Kg, it is that 200 orders, mixing, 60 ℃ of hot water of spray make that ball, 55 ℃ condense, ambient cure that each component quantifying is crushed to granularity, get particle diameter 3mm, micro-pore diameter 30 μ m micropores, specific surface area 180m 2The compounded mix of/g.Wherein contain base material 67.96%, pore-forming material 2.91%, cement bond agent 29.13%.The content of a composition in the base material: gac 18.57%, expanded vermiculite 11.43%, sepiolite 24.29%, zeolite 11.43%, flyash 34.29%.
Embodiment 2 utilizes the sewage disposal of compounded mix for microbe carrier
Example 2-1 handles city domestic sewage
With the compounded mix of embodiment 1-2, sewage quality is before handling: COD Cr280mg/L, BOD 5125mg/L, SS184mg/L, NH 3-N9mg/L handles back COD Cr28mg/L, BOD 58mg/L, SS7mg/L, NH 3-N5mg/L.
Example 2-2 handles lake sewage
With the compounded mix of embodiment 1-3, sewage quality is before handling: COD Cr48mg/L, BOD 525mg/L, SS28mg/L, NH 3-N7mg/L handles back COD Cr10mg/L, BOD 52mg/L, SS1mg/L, NH 3-N1mg/L.
Example 2-3 handles the chemical plant industrial sewage
With the compounded mix of embodiment 1-4, sewage quality is before handling: COD Cr572mg/L, BOD 530mg/L, SS97mg/L, NH 3-N37mg/L handles back COD Cr85mg/L, BOD 526mg/L, SS8mg/L, NH 3-N9mg/L.

Claims (3)

1, a kind of compounded mix contains mineral substrate, it is characterized in that: the composition of filler and weight percentage are:
Base material 48%~68%
Pore-forming material 3%~7%
Cement bond agent 35%~45%
Described base material is the mixture of one or more arbitrary proportions of gac, expanded vermiculite, sepiolite, zeolite, flyash or its analogue, described pore-forming material is an ammonium sulfate, it is that 100~200 orders, mixing, 55~65 ℃ of hot water of spray make that ball, 40~70 ℃ condense, ambient cure that described each component quantifying is crushed to granularity, get particle diameter 3~20mm, micro-pore diameter 20~200 μ m micropores, specific surface area 50~200m 2The compounded mix of/g.
2, compounded mix according to claim 1 is characterized in that: each composition and weight percentage in the base material are:
Gac 11%~23%
Expanded vermiculite 7%~12%
Sepiolite 16%~27%
Zeolite 8%~14%
Flyash 33%~50%.
3, the application of the described compounded mix of claim 1: be used for biological film sewage treatment process, sewage is carried out bio-oxidation, decolouring, taste removal and reduces the heavy metal content of sewage.
CNB03140183XA 2003-08-13 2003-08-13 Composite stuffing for sewage treating biofilm process Expired - Lifetime CN1199880C (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101234290B (en) * 2007-11-21 2010-06-16 清华大学 Biofiltration composite filling material for controlling organic and malodorous gas
WO2010139816A1 (en) * 2009-06-05 2010-12-09 Desarrollos Tecnicos Mc, S.L. Composition and use of an adsorbent material for filtering toxic components during the process of incineration and/or distillation of glycerine generated from the production of biodiesel
CN102070243A (en) * 2010-11-29 2011-05-25 郑州大学 Preparation method of silicate compound filler
CN102259974A (en) * 2011-05-24 2011-11-30 合肥工业大学 Magnetite-zeolite magnetic biological carrier material, as well as preparation method and application method thereof
CN102380356A (en) * 2010-11-23 2012-03-21 南通清波环保科技有限公司 Adsorbent and preparation method thereof
CN101607810B (en) * 2009-06-29 2012-05-09 东北电力大学 Wastewater treatment composite filler containing zeolite and pulverized fuel ash and preparation method thereof
CN102765804A (en) * 2012-07-05 2012-11-07 华南师范大学 Constructed wetland sewage treatment method based on modularized built-in gap filler
CN102824894A (en) * 2011-06-14 2012-12-19 辽宁科技大学 Preparation method of granular fly ash used as water purifying agent
CN103706265A (en) * 2012-09-28 2014-04-09 通用电气公司 Membrane structures suitable for gas separation, and related processes
CN103951044A (en) * 2014-05-23 2014-07-30 哈尔滨理工大学 Novel non-sintered biological stuffing rapid in biofilm formation and preparation method thereof
CN105833716A (en) * 2016-06-03 2016-08-10 湖南恒凯环保科技投资有限公司 Biological deodorization composition for odor removal, method for preparing filler by biological deodorization composition and application of biological deodorization composition
CN109607778A (en) * 2019-01-31 2019-04-12 北京潮白环保科技股份有限公司 The processing method of the carrier of nitrate in a kind of removal water body
CN112390368A (en) * 2020-10-09 2021-02-23 淮阴工学院 Novel bentonite composite active carbon ecological floating bed filler and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101723507B (en) * 2009-12-11 2011-05-18 华南理工大学 Three-dimensional concrete filling material for water treatment and preparation method thereof

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101234290B (en) * 2007-11-21 2010-06-16 清华大学 Biofiltration composite filling material for controlling organic and malodorous gas
WO2010139816A1 (en) * 2009-06-05 2010-12-09 Desarrollos Tecnicos Mc, S.L. Composition and use of an adsorbent material for filtering toxic components during the process of incineration and/or distillation of glycerine generated from the production of biodiesel
CN101607810B (en) * 2009-06-29 2012-05-09 东北电力大学 Wastewater treatment composite filler containing zeolite and pulverized fuel ash and preparation method thereof
CN102380356B (en) * 2010-11-23 2013-09-25 南通清波环保科技有限公司 Adsorbent and preparation method thereof
CN102380356A (en) * 2010-11-23 2012-03-21 南通清波环保科技有限公司 Adsorbent and preparation method thereof
CN102070243A (en) * 2010-11-29 2011-05-25 郑州大学 Preparation method of silicate compound filler
CN102259974A (en) * 2011-05-24 2011-11-30 合肥工业大学 Magnetite-zeolite magnetic biological carrier material, as well as preparation method and application method thereof
CN102824894A (en) * 2011-06-14 2012-12-19 辽宁科技大学 Preparation method of granular fly ash used as water purifying agent
CN102824894B (en) * 2011-06-14 2014-08-27 辽宁科技大学 Preparation method of granular fly ash used as water purifying agent
CN102765804A (en) * 2012-07-05 2012-11-07 华南师范大学 Constructed wetland sewage treatment method based on modularized built-in gap filler
CN103706265B (en) * 2012-09-28 2018-01-19 通用电气公司 Membrane structure suitable for gas separation and associated method
CN103706265A (en) * 2012-09-28 2014-04-09 通用电气公司 Membrane structures suitable for gas separation, and related processes
CN103951044A (en) * 2014-05-23 2014-07-30 哈尔滨理工大学 Novel non-sintered biological stuffing rapid in biofilm formation and preparation method thereof
CN103951044B (en) * 2014-05-23 2016-01-06 哈尔滨理工大学 A kind of non-sintered rapid biofilm biologic packing material and preparation method thereof
CN105833716A (en) * 2016-06-03 2016-08-10 湖南恒凯环保科技投资有限公司 Biological deodorization composition for odor removal, method for preparing filler by biological deodorization composition and application of biological deodorization composition
CN105833716B (en) * 2016-06-03 2017-11-10 湖南恒凯环保科技投资有限公司 A kind of biological deodorization composition for being used to remove foul smell and its conduct filler are prepared and applied
CN109607778A (en) * 2019-01-31 2019-04-12 北京潮白环保科技股份有限公司 The processing method of the carrier of nitrate in a kind of removal water body
CN112390368A (en) * 2020-10-09 2021-02-23 淮阴工学院 Novel bentonite composite active carbon ecological floating bed filler and preparation method thereof

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