CN1915858A - Compounded mix of transfusion type biology bed in use for treating polluted river water - Google Patents

Compounded mix of transfusion type biology bed in use for treating polluted river water Download PDF

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Publication number
CN1915858A
CN1915858A CNA2006101127819A CN200610112781A CN1915858A CN 1915858 A CN1915858 A CN 1915858A CN A2006101127819 A CNA2006101127819 A CN A2006101127819A CN 200610112781 A CN200610112781 A CN 200610112781A CN 1915858 A CN1915858 A CN 1915858A
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CN
China
Prior art keywords
compounded mix
waste
polluted river
seepage
river water
Prior art date
Application number
CNA2006101127819A
Other languages
Chinese (zh)
Inventor
何苗
胡洪营
林岩清
张建
Original Assignee
清华大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 清华大学 filed Critical 清华大学
Priority to CNA2006101127819A priority Critical patent/CN1915858A/en
Publication of CN1915858A publication Critical patent/CN1915858A/en

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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

Abstract

This invention discloses seepage biological bed composite filler for polluted river treatment and technology for purifying polluted river. The composite filler is prepared from construction waste bricks and industrial waste ceramics as the raw materials by mechanical processing into appropriate particles and mixing. The particle sizes are within the range of 3-10 cm, and the volume ratio of waste bricks to waste ceramics is (1.5-3) : 1. The composite filler has such advantages as stable structure, high porousity and high surface roughness, thus is suitable for microbe growth. Besides, the composite filler has abundant wide raw materials, and can solve the environmental problem of soil occupation by waste bricks and waste ceramics.

Description

A kind of seepage-type organism bed compounded mix that is used for the polluted river water processing
Technical field
A kind of seepage-type organism bed compounded mix that is used for the polluted river water processing relates to polluted river water purification techniques field.
Background technology
The water quality severe exacerbation is one of subject matter of Chinese stream pollution, and purifying water quality of river is the requisite measure of river improvement.Seepage-type organism bed technique (Seepage Biological Bed abbreviates SBB as) combines the filteration of biomembranous degraded and filler, is suitable for being subjected to the improvement in the small-sized river of severe contamination.The characteristics of this technology are the modes of the horizontal seepage flow of current employing, and this also is the origin of " seepage-type organism bed ".Adopt the water flow mode of horizontal seepage flow, structures can be in conjunction with the landform and the geology characteristic on riverbank, and bank is arranged along the river; Can reduce the structures height significantly, and can be designed to semi-underground type or full underground type, can be good at merging mutually with view; Current can utilize gravity flowage, save power charge, can be designed to semi-open-type simultaneously, utilize the reoxygenation biodegrade of air; Compare upward flow and down to the structures of stream, the length limited system of structures on water (flow) direction of horizontal seepage flow is less, can dispose different fillers along its length, realizes different removal functions.
Filler is seepage-type organism bed core processing medium, and its performance directly influences function performances such as seepage-type organism bed filtration, absorption, biological degradation, and simultaneously, filler also is the capital cost of this technology initial cost.Therefore, screening of the filler of efficient economy and configuration are the important contents of seepage-type organism bed process exploitation.Seepage-type organism bed filling is different from the filler of traditional saprobia filtration process, and the screening of filler should be in conjunction with the characteristics of river improvement, takes all factors into consideration factors such as functional, economy, eco-compatibility.Be embodied in the following aspects:
(1) it is larger usually to be used for the biofiltration technology of river improvement, and the demand of filler is bigger.Therefore, filler will cheaply be easy to get, and will consider the utilization again of various waste materials;
(2) filler should have good constructional feature and physicals, and certain intensity should be arranged, and also will consider density, porosity and the specific surface area etc. of filler;
(3) chemical stability of filler is stronger, the objectionable impurities of not stripping influence biological treatment function, and some are of value to the beneficial element of microorganism growth to wish the energy stripping;
(4) aspect biological adhesiveness, good biological adhesiveness should be arranged.
At present, in wastewater treatment, filler commonly used mainly contains haydite, zeolite, quartz sand, hard coal, gac, plastics and other natural materialss and mineral grain.These fillers or do not have the function of absorb polluted matter, perhaps price is higher, can not the big requirement of the amount of satisfying the demands.
But the filling substrate function singleness in the existing seepage-type organism bed system can not be given full play to the characteristics that filler improves the microorganism growth environment, strengthens pollutent absorption degradation and promotion microorganism growth.
Summary of the invention
The objective of the invention is to, overcome existing seepage-type organism bed filling and have defective, a kind of seepage-type organism bed compounded mix that polluted river water is handled that is used for is provided.
The invention is characterized in, be to be raw material with useless fragment of brick of building waste and industrial waste ceramics, through being machined into appropriate particles, the compounded mix that mixes.
The particle diameter of described compounded mix is in 3cm~10cm scope.The volume ratio 1.5: 1~3: 1 of useless fragment of brick and waste ceramic in the described compounded mix.
Beneficial effect: evidence, utilize compounded mix provided by the present invention, can effectively remove organic pollutant in the polluted river water and other pollutent, this filler also has characteristics such as the source is abundant, with low cost.
Embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1:
Adopting the ratio of mixture of useless fragment of brick and waste ceramic is that volume ratio is 2: 1, and mechanical workout becomes 3~10cm size particles, and the density that records useless fragment of brick is 2180Kg/m 3, porosity is 52%; The density of waste ceramic is 2350Kg/m 3, porosity is 53%, when being used for seepage-type organism bed filling, removal load to COD when average water temperature is 26 ℃ is 89.4g/m3d, removal load when average water temperature is 12 ℃ is 65.3g/m3d, but still has certain treatment effect, and average removal rate can reach 41.0%; Seepage-type organism bed annual influent load to river CODcr is 164.4g/m3d, and average removal rate is 41.0%, and the annual water outlet is 29.6mg/L, reaches water environment quality standard IV class standard; Seepage-type organism bed compounded mix is 81.0% to polluted river water turbidity annual clearance, and the water outlet average turbidity is 9.0NTU, and is near the standard of feedwater water quality, better to the treatment effect of turbidity.From experimental result, cobble has leached a large amount of calcium (Ca), potassium (K), magnesium (Mg), sodium (Na), sulphur (S) and silicon (Si), wherein calcium (Ca), potassium (K), magnesium (Mg) and sodium (Na), sulphur (S) are microorganism growth required " macroelement ", boron (B), barium (Ba), bismuth (Bi) and these trace elements of strontium (Sr) have been leached in addition, though these trace elements are not that microorganism growth is necessary, but can promote the variation of microorganism growth environment, thereby also be useful for microbial growth.
The biological attachment amount of useless fragment of brick is the 2.8gSS/L filler, and waste ceramic biological attachment amount is the 1.5gSS/L filler.
To NH 4 +The clearance of-N, useless fragment of brick 54.1%, waste ceramic 25.9%.To the clearance of turbidity, useless fragment of brick 83.9%, waste ceramic 70.6%.
Compounded mix Stability Analysis of Structures of the present invention, porosity is big, and surface irregularity is fit to microbial growth.The required elements of microorganism growth such as useless fragment of brick and waste ceramic can stripping calcium, potassium, magnesium, thus microbial growth promoted.Useless fragment of brick and waste ceramic are respectively building waste and industrial waste, and wide material sources, rich and easy to get can be realized utilization of waste material with it as filler, can solve the environmental problem that useless fragment of brick and waste ceramic take a large amount of soils effectively.

Claims (3)

1, a kind ofly being used for the seepage-type organism bed compounded mix that polluted river water is handled, it is characterized in that, is to be raw material with useless fragment of brick of building waste and industrial waste ceramics, through being machined into appropriate particles, mixes compounded mix.
2, the seepage-type organism bed compounded mix that is used for the polluted river water processing as claimed in claim 1 is characterized in that the particle diameter of described compounded mix is in 3cm~10cm scope.
3, the seepage-type organism bed compounded mix that is used for the polluted river water processing as claimed in claim 1 is characterized in that, the volume ratio of useless fragment of brick and waste ceramic is 1.5: 1~3: 1 in the described compounded mix.
CNA2006101127819A 2006-09-01 2006-09-01 Compounded mix of transfusion type biology bed in use for treating polluted river water CN1915858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2006101127819A CN1915858A (en) 2006-09-01 2006-09-01 Compounded mix of transfusion type biology bed in use for treating polluted river water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2006101127819A CN1915858A (en) 2006-09-01 2006-09-01 Compounded mix of transfusion type biology bed in use for treating polluted river water

Publications (1)

Publication Number Publication Date
CN1915858A true CN1915858A (en) 2007-02-21

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104083945A (en) * 2014-05-22 2014-10-08 内蒙古大学 Zeolite ceramic prepared by utilizing coal gangue and construction waste and preparation technology thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104083945A (en) * 2014-05-22 2014-10-08 内蒙古大学 Zeolite ceramic prepared by utilizing coal gangue and construction waste and preparation technology thereof
CN104083945B (en) * 2014-05-22 2015-12-09 内蒙古大学 A kind of utilize gangue and building waste to prepare zeolite ceramsite and technology of preparing

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