CN101612550B - Preparation method and application of filter aid for purifying and solid-liquid separation of industrial sewage - Google Patents
Preparation method and application of filter aid for purifying and solid-liquid separation of industrial sewage Download PDFInfo
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- CN101612550B CN101612550B CN200910012553A CN200910012553A CN101612550B CN 101612550 B CN101612550 B CN 101612550B CN 200910012553 A CN200910012553 A CN 200910012553A CN 200910012553 A CN200910012553 A CN 200910012553A CN 101612550 B CN101612550 B CN 101612550B
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Abstract
The invention relates to a filter aid for purifying and solid-liquid separation of industrial sewage, a preparation method and application thereof. The filter aid is made from the following components according to the weight portion: 80 to 90 portions of flyash, and 10 to 20 portions of porous diatomite. The preparation method comprises the following steps: respectively crashing the raw materials to 40-400 mu, and stirring and mixing the raw materials according to the weight portion. The filter aid is applied to a filter system, in particular to vacuum barrate filtering and filtering of a belt-type filter press. The invention has the advantages that a filter layer with high osmosis can be formed when the filter aid is used, and small particles can be removed by filtering so as to achieve the purposes of enhancing the solid-liquid separating effect, enhancing the mud-removing amount and ensuring the stable quality of yielding water and the stable operation of the industrial production.
Description
Technical field
The present invention relates to filter aid and method for making and application that a kind of industrial sewage purification Separation of Solid and Liquid is used.
Background technology
Because Anshan iron and steel plant two steelmaking system transformations; The coarse granule machine of inclined-plate clarifying basin front end is removed big particle; Remaining fine particles has formed not filter course, cause the vacuum filter dehydration difficult, so the filtrating of higher concentration returns inclined-plate clarifying basin; Increase the weight of the swash plate working strength, cause system's fluctuation of service.
Summary of the invention
The purpose of this invention is to provide a kind of industrial sewage purification Separation of Solid and Liquid filter aid and method for making and application; Use this filter aid can form the filter course of high osmosis; The filtering fine particles; Thereby reach the raising solid-liquid separation effect, improve the desilt amount, make stable effluent quality, commercial production aim of stable operation.
For realizing above-mentioned purpose, the present invention realizes through following technical scheme:
A kind of industrial sewage purification Separation of Solid and Liquid filter aid, it mainly by following compositions by weight ratio process: flyash 80-90 weight portion, porous diatomite 10-20 weight portion.
Described filter aid also comprises bentonite 1-5 weight portion.
Described filter aid also comprises steel slag or scrap iron slag 1-5 weight portion.
The method for making of described a kind of industrial sewage purification Separation of Solid and Liquid filter aid, this method for making may further comprise the steps:
1) said raw material is ground into 40 orders-400 order respectively, for use;
2) by the weight portion ratio of prescription requirement, with above-mentioned raw material for use after metering, put into batch mixer and fully stir, mix, deposit in the feed bin after stirring;
3) with the product warp that stirs in the feed bin after the assay was approved, go into warehouse for finished product.
This filter aid is applied in the filtration system, during particularly vacuum drum filtration, belt filter press filter.
In the above composition, because the specific area of flyash is big, high adsorption capacity has the characteristic of macromolecule polycondensation, so its easy absorption, can form filter course; Porous diatomite internal capillary is abundant, and its main effect is exactly under the prerequisite that guarantees the higher rate of filtration, removes impurity and fine suspension in the sewage, reduces the filtrating turbidity.
Compared with prior art, the invention has the beneficial effects as follows:
1) use flyash to be raw material, can strengthen adsorption capacity, mud cake is thickened, mud volume increases;
2) porous diatomite internal capillary is abundant, can effectively improve the rate of filtration, removes impurity and fine suspension in the sewage, reduces the filtrating turbidity;
3) can make the remaining fine particles of inclined-plate clarifying basin form effective filter course, make swash plate stable operation.
The specific embodiment
Embodiment 1
A kind of industrial sewage purification Separation of Solid and Liquid filter aid, it be by following compositions by weight ratio process: flyash 90 weight portions, porous diatomite 10 weight portions.
The method for making of said industrial sewage purification Separation of Solid and Liquid filter aid may further comprise the steps:
1) said raw material is ground into 200 orders-400 order respectively, for use;
2) by the weight portion ratio of prescription requirement, with above-mentioned raw material for use after metering, put into batch mixer and fully stir, mix, deposit in the feed bin after stirring;
3) with the product warp that stirs in the feed bin after the assay was approved, go into warehouse for finished product.
Embodiment 2
A kind of industrial sewage purification Separation of Solid and Liquid filter aid, it be by following compositions by weight ratio process: flyash 85 weight portions, porous diatomite 15 weight portions.
The method for making of described a kind of industrial sewage purification Separation of Solid and Liquid filter aid may further comprise the steps:
1) said raw material is ground into 40 orders-200 order respectively, for use;
2) by the weight portion ratio of prescription requirement, with above-mentioned raw material for use after metering, put into batch mixer and fully stir, mix, deposit in the feed bin after stirring;
3) with the product warp that stirs in the feed bin after the assay was approved, go into warehouse for finished product.
Embodiment 3
A kind of industrial sewage purification Separation of Solid and Liquid filter aid, it be by following compositions by weight ratio process: flyash 80 weight portions, porous diatomite 20 weight portions.
The method for making of described a kind of industrial sewage purification Separation of Solid and Liquid filter aid may further comprise the steps:
1) said raw material is ground into 15 orders-300 order respectively, for use;
2) by the weight portion ratio of prescription requirement, with above-mentioned raw material for use after metering, put into batch mixer and fully stir, mix, deposit in the feed bin after stirring;
3) with the product warp that stirs in the feed bin after the assay was approved, go into warehouse for finished product.
Embodiment 4
A kind of industrial sewage purification Separation of Solid and Liquid filter aid, it by following compositions by weight ratio process: flyash 85 weight portions, porous diatomite 10 weight portions, steel slag or scrap iron slag 2 weight portions, bentonite 3 weight portions.Method for making is with embodiment 1.
Embodiment 5
A kind of industrial sewage purification Separation of Solid and Liquid filter aid, it by following compositions by weight ratio process: flyash 80 weight portions, porous diatomite 15 weight portions, steel slag or scrap iron slag 4 weight portions, bentonite 1 weight portion.Method for making is with embodiment 1.
Embodiment 6
A kind of industrial sewage purification Separation of Solid and Liquid filter aid, it by following compositions by weight ratio process: flyash 85 weight portions, porous diatomite 12 weight portions, bentonite 3 weight portions.Method for making is with embodiment 1.
Among the above embodiment, this filter aid is applied in the filtration system, during particularly vacuum drum filtration, belt filter press filter.
Following table has provided the site test results of the industrial sewage purification Separation of Solid and Liquid filter aid among the embodiment 1:
| Group is inferior | Add the time | Cake thickness |
| First group | Before adding | 6mm |
| Second group | Added back 2 hours | 8mm |
| The 3rd group | Added back 5 hours | 9mm |
| The 4th group | Added back 7 hours | 11mm |
| The 5th group | Added back 9 hours | 12mm |
Claims (2)
1. the method for making of an industrial sewage purification Separation of Solid and Liquid filter aid, its raw material by following compositions by weight ratio process: flyash 80-90 weight portion, porous diatomite 10-20 weight portion, bentonite 1-5 weight portion, steel slag or scrap iron slag 1-5 weight portion; It is characterized in that method for making may further comprise the steps:
1) said raw material is ground into 40 orders-400 order respectively, for use;
2) by the weight portion ratio of prescription requirement, with above-mentioned raw material for use after metering, put into batch mixer and fully stir, mix, deposit in the feed bin after stirring;
3) with the product warp that stirs in the feed bin after the assay was approved, go into warehouse for finished product.
2. a kind of industrial sewage purification Separation of Solid and Liquid filter aid according to claim 1 the application of the prepared filter aid of method for making, it is characterized in that, this filter aid be applied to that vacuum drum filters or the belt filter press filtration system in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910012553A CN101612550B (en) | 2009-07-16 | 2009-07-16 | Preparation method and application of filter aid for purifying and solid-liquid separation of industrial sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910012553A CN101612550B (en) | 2009-07-16 | 2009-07-16 | Preparation method and application of filter aid for purifying and solid-liquid separation of industrial sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101612550A CN101612550A (en) | 2009-12-30 |
| CN101612550B true CN101612550B (en) | 2012-09-05 |
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| CN200910012553A Expired - Fee Related CN101612550B (en) | 2009-07-16 | 2009-07-16 | Preparation method and application of filter aid for purifying and solid-liquid separation of industrial sewage |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764634B (en) * | 2012-07-23 | 2014-11-26 | 黑旋风工程机械开发有限公司 | Formula of composite filter aid for shield engineering slurry |
| CN103253951A (en) * | 2013-05-13 | 2013-08-21 | 大连工业大学 | Method for preparing low-grade diatomite-based composite porous material |
| CN104529127A (en) * | 2014-12-31 | 2015-04-22 | 梁毅 | Sludge dewatering method for coating plate-and-frame filter press with filter aid medium in advance |
| CN105727891A (en) * | 2016-04-27 | 2016-07-06 | 苏州圣谱拉新材料科技有限公司 | Modified fly ash water purification material and preparation method thereof |
| CN109851088A (en) * | 2019-01-10 | 2019-06-07 | 陕西福天宝环保科技有限公司 | A kind of processing method of electroplating wastewater |
| CN111871067A (en) * | 2020-07-02 | 2020-11-03 | 刘长岭 | Filter aid for filter pressing in coal washing plant and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830827A (en) * | 2006-03-24 | 2006-09-13 | 沈阳天丰环保工程有限公司 | Preparation method of fly ash micro coat flocculation filtering material |
| US20080134888A1 (en) * | 2006-12-08 | 2008-06-12 | Chien-Chung Chao | Mercury adsorbents compatible as cement additives |
| CN101274172A (en) * | 2007-12-27 | 2008-10-01 | 江苏正本净化节水科技实业有限公司 | Composite filtering material for activating and regenerating coal ash and production method thereof |
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2009
- 2009-07-16 CN CN200910012553A patent/CN101612550B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830827A (en) * | 2006-03-24 | 2006-09-13 | 沈阳天丰环保工程有限公司 | Preparation method of fly ash micro coat flocculation filtering material |
| US20080134888A1 (en) * | 2006-12-08 | 2008-06-12 | Chien-Chung Chao | Mercury adsorbents compatible as cement additives |
| CN101274172A (en) * | 2007-12-27 | 2008-10-01 | 江苏正本净化节水科技实业有限公司 | Composite filtering material for activating and regenerating coal ash and production method thereof |
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| CN101612550A (en) | 2009-12-30 |
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Granted publication date: 20120905 Termination date: 20180716 |