CN102849855A - Preparation and application of dephosphorizing adsorbents for constructed wetlands - Google Patents

Preparation and application of dephosphorizing adsorbents for constructed wetlands Download PDF

Info

Publication number
CN102849855A
CN102849855A CN2012103873439A CN201210387343A CN102849855A CN 102849855 A CN102849855 A CN 102849855A CN 2012103873439 A CN2012103873439 A CN 2012103873439A CN 201210387343 A CN201210387343 A CN 201210387343A CN 102849855 A CN102849855 A CN 102849855A
Authority
CN
China
Prior art keywords
dephosphorizing
adsorbent
dephosphorization adsorbent
water
adsorbents
Prior art date
Application number
CN2012103873439A
Other languages
Chinese (zh)
Inventor
刘玉兰
龙恩深
黄如一
黄巍
Original Assignee
四川大学
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 四川大学 filed Critical 四川大学
Priority to CN2012103873439A priority Critical patent/CN102849855A/en
Publication of CN102849855A publication Critical patent/CN102849855A/en

Links

Classifications

    • 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

The invention relates to dephosphorizing adsorbents for new rural construction domestic wastewater constructed wetlands in the south and a preparation method of the dephosphorizing adsorbents. The preparation method of the dephosphorizing adsorbents comprises the following steps of: stirring kaolin, active carbon, sawdust, cement and water, preparing small-grain spheres by a spheres forming device, wherein the grain sizes are 10-50mm; filling a layer of dephosphorizing adsorbent into a new rural construction domestic wastewater constructed wetlands pond in the south; and planting aquatic plant on the dephosphorizing adsorbent. Due to the inspection of the new rural construction domestic wastewater constructed wetlands engineering in the south, the adsorbent disclosed by the invention is high-efficiency in dephosphorizing effect, high in absorption capacity which is larger than 5Pmg/g, and high in dephosphorizing efficiency which is larger than 98%, and the phosphorus concentration in discharged water is less than 0.02mg/L. Compared with the common sand filling method, the adsorbent disclosed by the invention has obvious advantages.

Description

Preparation and the application of dephosphorization adsorbent of one class artificial swamp

Technical field

The present invention relates to sanitary sewage disposal in the new countryside construction of Constructed Wetland For Purifying south in the ecological engineering of environment, be specifically related to class dephosphorization adsorbent and preparation method thereof and the application in artificial swamp

Background technology

From the nineteen fifty-two Chairman Mao " southern water is many, and northern water is few, as possible, borrows a water also to be fine " are proposed.The south water to north becomes the Major Strategic engineering of alleviating north of China water resources critical shortage situation.As the south of waterhead area, the improvement that water pollutes seems particularly important.In new countryside construction, the rural sewage treatment qualified discharge will play very important effect in the whole energy-saving and emission-reduction work of China.

Domestic sewage in rural areas by using is sanitary sewage and the factory effluent general name of rural villages and small town, generally comprises the three aspects :s such as kitchen waste water, life wash water, flushing water.All be as one of fertile source of farming basically before new countryside construction, take full advantage of the organic composition in the sanitary sewage, allow farm crop absorb, transform nutritive substance, seldom be lost in the water body.Along with rapid economic development, great variety has occured in the life in the countryside pattern, popularizes such as tap water, sanitary ware, washing machine, ablution facility etc.Rural area per capita water consumption suddenly increases, and has produced a large amount of sanitary sewages, simultaneously because of hygienic requirements and equipment characteristic, has been difficult to as farming fertilizer.This is also so that domestic sewage in rural areas by using directly discharges a major cause that becomes the lake river eutrophication.

Be the active demand of socio-economic development and improvement of the ecological environment to contaminated water body reparation, simultaneously, the more important thing is and carry out protection and harnessing from the source.Because artificial swamp is ecological wastewater processing technology low-cost, convenient management, be specially adapted to the waterhead area of the south water to north, thereby so that the sanitary sewage disposal in the southern new countryside construction seem particularly urgently, particularly important.

Summary of the invention

The present invention is when improving the prior art weak point, provide that a kind of cost is low, processing efficiency is high, easy to operate, be easy to change, adaptable dephosphorization adsorbent and preparation method thereof, also provide good selection for landscape artificial wetland and construction thereof and use simultaneously.

The present invention is by using soft, the easy dispersion suspension of matter in water, good plasticity-and high cohesiveness, good electrical insulation capability; Has good antiacid dissolubility, very low cation exchange capacity, the kaolin of resistivity against fire preferably.Be aided with simultaneously the pore texture prosperity, specific surface area is very large, the gac that adsorptive power is very strong, and wooden add the sawdust that stays man-hour, the wood chip of wood shavings powder, at the effect compacted under of cement.Thereby arrive efficient phosphor-removing effect.

Technical solution problem of the present invention adopts following scheme:

The characteristics of a class dephosphorization adsorbent of the present invention are: described dephosphorization adsorbent is the mixture of kaolin, gac, wood chip and the cement of particle diameter 10-50mm.

The characteristics of a class dephosphorization adsorbent of the present invention also are: the ratio of kaolin, gac, wood chip and cement is (1-25) in the described dephosphorization adsorbent: (1-25): (1-25): (1-25).

Artificial swamp of the present invention comprises the artificial swamp pond, it is characterized in that having one deck dephosphorization adsorbent in the wetland pond.

Described artificial swamp of the present invention is characterized in that having the thick dephosphorization adsorbent of one deck 1-4m in the wetland pond, and optimization thickness is 3.5m.

The characteristics of a class dephosphorization adsorbent of the present invention also are: be shaped to the particle of 10-50mm with spherical forming machine, then place the artificial swamp bottom as dephosphorization adsorbent.

The characteristics of the using method of dephosphorization adsorbent of the present invention are: dephosphorization adsorbent is filled out be laid on artificial swamp, at the artificial wetland of the present invention, water retention time is greater than 1h with pending phosphorous water, and the water outlet phosphorus concentration reaches surface water body three class standards.

The characteristics of dephosphorization adsorbent of the present invention are: sorbent material of the present invention is to the efficient adsorption effect of phosphorus, high (〉 97% of phosphor-removing effect, the water outlet phosphorus concentration is less than 0.02mg/L).

The characteristics of dephosphorization adsorbent of the present invention are: the raw material that the present invention uses is aided with the cement moulding as kaolin and gac and the wood chip of good adsorption performance.

The present invention also provides another method of construction of artificial swamp, is specially, the dephosphorization adsorbent of moulding is laid in the artificial swamp pond as filler, and then with water plant planting in the above.

Description of drawings

Fig. 1 is dephosphorization adsorbent and the simple and easy synoptic diagram in southern new countryside construction sanitary sewage artificial swamp engineering is used thereof that the present invention relates to;

Wherein 1 is spherical dephosphorization adsorbent, and 2 is waterplant, and 3 is bottom, artificial swamp pond aerating system, and 4 is sewage inlet, and 5 is back-purge system.

Embodiment

Below be to further specifying that the present invention does, but be not limitation of the present invention

Unrestricted embodiment 1:

The ratio of the kaolin that uses in the dephosphorization adsorbent in the present embodiment, gac, wood chip and cement is 1:1:1:1.

The concrete preparation method of used dephosphorization adsorbent in the present embodiment: commercially available kaolin, gac and cement are directly used without any processing, and wood chip is Furniture Factory's waste, directly uses.1:1:1:1 adds the water mixing in proportion, is shaped to the large particle of 25mm with spherical former, dries stand-by.

The fill method of used dephosphorization adsorbent artificial swamp in the present embodiment: the dephosphorization adsorbent of the 25mm that will dry is particles filled in the artificial swamp bottom, floor height 3.0m.Plant again upper waterplant.

Used dephosphorization adsorbent effect measuring in the present embodiment: the artificial swamp that dephosphorization adsorbent is filled is used for southern new countryside construction rural domestic sewage treatment, phosphorus concentration is by 0.8mg/L, be reduced to below the 0.02mg/L, see it is very efficient from the angle that phosphorus is removed, reach more than 98%, the water outlet phosphorus concentration has reached surface water body three class standards.The artificial swamp processing efficiency that shows embodiment from the result is high, and treatment effect is good.

Unrestricted embodiment 2:

The ratio of the kaolin that uses in the used dephosphorization adsorbent in the present embodiment, gac, wood chip and cement is 2:2:1:1.

The concrete preparation method of used dephosphorization adsorbent in the present embodiment: commercially available kaolin, gac and cement are directly used without any processing, and wood chip is Furniture Factory's waste, directly uses.2:2:1:1 adds the water mixing in proportion, is shaped to the large particle of 50mm with spherical former, dries stand-by.

Dephosphorization adsorbent is at the fill method of southern new countryside construction sanitary sewage artificial swamp in the present embodiment: the dephosphorization adsorbent of the 50mm that will dry is particles filled in the artificial swamp bottom, floor height 3.5m.Plant again upper waterplant.

Dephosphorization adsorbent effect measuring in the present embodiment: the artificial swamp that dephosphorization adsorbent is filled is used for southern new countryside construction rural domestic sewage treatment, phosphorus concentration is by 0.8mg/L, be reduced to below the 0.02mg/L, the angle of only removing from phosphorus sees it is very efficient, reach more than 98%, the water outlet phosphorus concentration has reached surface water body three class standards.The artificial swamp processing efficiency that shows embodiment from the result is high, and treatment effect is good.

Claims (4)

1. a class artificial swamp, comprise the artificial swamp pond, it is characterized in that having one deck dephosphorization adsorbent in the wetland pond, the above plants waterplant, be applied to southern new countryside construction sanitary sewage disposal, large (〉 5P mg/g of loading capacity), dephosphorization efficiency by using high (greater than 98%, the water outlet phosphorus concentration is lower than 0.02 mg/L).
2. require according to right 1, it is characterized in that described dephosphorization adsorbent layer is at 1-4m.
3. require according to right 1, it is characterized in that, the dephosphorization adsorbent that has is that kaolin, gac, wood chip are equipped with cement production systD.
4. the preparation method of right 1 desired dephosphorization adsorbent is characterized in that operating by the following method:
Kaolin, gac, wood chip and cement proportion are at (1-25): (1-25): (1-25): proportional range proportioning (1-25), and add water and stir, be processed into the spheroidal particle of 10-50mm with spherical former, the normal temperature placement is dried.
CN2012103873439A 2012-10-15 2012-10-15 Preparation and application of dephosphorizing adsorbents for constructed wetlands CN102849855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012103873439A CN102849855A (en) 2012-10-15 2012-10-15 Preparation and application of dephosphorizing adsorbents for constructed wetlands

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012103873439A CN102849855A (en) 2012-10-15 2012-10-15 Preparation and application of dephosphorizing adsorbents for constructed wetlands

Publications (1)

Publication Number Publication Date
CN102849855A true CN102849855A (en) 2013-01-02

Family

ID=47396905

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012103873439A CN102849855A (en) 2012-10-15 2012-10-15 Preparation and application of dephosphorizing adsorbents for constructed wetlands

Country Status (1)

Country Link
CN (1) CN102849855A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104528902A (en) * 2014-12-16 2015-04-22 上海交通大学 Novel polymeric aluminum chloride dephosphorizing filler and preparation method thereof
CN106315705A (en) * 2015-09-17 2017-01-11 袁振 Water body eutrophication treatment floating particles prepared from forestry and agricultural residues

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266752A (en) * 2011-06-24 2011-12-07 东北师范大学 Method for preparing carbonizing absorption grains used for purifying water

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266752A (en) * 2011-06-24 2011-12-07 东北师范大学 Method for preparing carbonizing absorption grains used for purifying water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104528902A (en) * 2014-12-16 2015-04-22 上海交通大学 Novel polymeric aluminum chloride dephosphorizing filler and preparation method thereof
CN106315705A (en) * 2015-09-17 2017-01-11 袁振 Water body eutrophication treatment floating particles prepared from forestry and agricultural residues

Similar Documents

Publication Publication Date Title
CN103253774B (en) Improved method for enhancing ammonia nitrogen removal effect of constructed wetland by using wetland harvested bamboo reeds
CN1296129C (en) Method for synthesizing zeolite by fly ash and application thereof
CN102351557B (en) Method for preparing non-sintered ceramsite from activated sludge blended with fly ash
CN104452653B (en) The lake buffer strip building method that a kind of pollution of area source controls
CN201999829U (en) Distributed sewage treatment system for rural life
CN104259192A (en) Ecological water conservancy restoration system and method for heavy metal polluted farmland soil
CN101920191B (en) Application of activated carbon modified material and application in removing arsenic from water
CN202099163U (en) Combined layering biological filter for sewage treatment
CN201952325U (en) Stepwise function-reinforced biological ecological oxidation pond
CN202246336U (en) Unpowered ecological treatment system for treating rural domestic sewage
CN103739058B (en) A kind of reinforced sewage dephosphorization filler and preparation method thereof
CN104876410B (en) The original position of a kind of heavy metal and/or nitrogen and phosphorus pollution bed mud continues restorative procedure
CN201224693Y (en) Compound wave type stream artificial mountain wetland sewage treatment system
CN204097277U (en) Plural serial stage modularization domestic sewage processing system
CN103111266B (en) Preparation method of granular adsorbent for removing antibiotics in water, prepared adsorbent and application thereof
CN101559349B (en) Calcination-free zeolite filter material and preparation method thereof
CN204111556U (en) A kind of dewatering system for municipal sludge deep dehydration
Ridderstolpe Introduction to greywater management
CN106365305A (en) Preparing method and application of ecological matrix particles for river water body enhanced nitrogen removal
CN203346959U (en) Domestic wastewater recycling irrigation system
CN204939090U (en) A kind of small-sized detachable module formula artificial wet land system
CN101391841B (en) High-load angleworm bio-filter for processing rural decentralized wastewater
CN103787645B (en) The eco-concrete prepared based on sorbing material and the method for purification of water quality
CN205740677U (en) A kind of multimedium subsurface infiltration sewage-treatment plant with high removal efficiency of nitrogen and phosphorus
CN101397167A (en) Sludge substrate ecological floating island and construction method

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130102

C02 Deemed withdrawal of patent application after publication (patent law 2001)