CN108409069A - A kind of rural domestic sewage treatment system - Google Patents

A kind of rural domestic sewage treatment system Download PDF

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Publication number
CN108409069A
CN108409069A CN201810554164.7A CN201810554164A CN108409069A CN 108409069 A CN108409069 A CN 108409069A CN 201810554164 A CN201810554164 A CN 201810554164A CN 108409069 A CN108409069 A CN 108409069A
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CN
China
Prior art keywords
domestic sewage
rural
wet land
artificial wet
sewage treatment
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CN201810554164.7A
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Chinese (zh)
Inventor
陈梦吉
张银君
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Hechi University
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Hechi University
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Publication date
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Priority to CN201810554164.7A priority Critical patent/CN108409069A/en
Publication of CN108409069A publication Critical patent/CN108409069A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2826Anaerobic digestion processes using anaerobic filters
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/301Aerobic and anaerobic treatment in the same reactor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae

Abstract

The present invention discloses a kind of rural domestic sewage treatment system, including pretreatment system, anaerobic biofilter and artificial wet land system;The pretreatment system, anaerobic biofilter and artificial wet land system pass sequentially through pipeline and are connected to;The pretreatment system includes grid setting pot and oil separator;The artificial wet land system includes multiple wetland units;Domestic sewage in rural areas is concentrated in grid setting pot, remove bulky grain sundries and sand setting, it is re-fed into oil separator and carries out water-oil separating, sewage after separation is sent into anaerobic biofilter and carries out Anaerobic Treatment, it is then fed into artificial wet land system, domestic sewage in rural areas is percolated, is finally discharged from the water outlet of artificial wet land system, rural domestic sewage treatment is completed;Present invention combination artificial swamp, biologic treating technique and multilayer diafiltration techniques effectively remove suspended matter, total phosphorus, total nitrogen, the ammonia nitrogen in sewage, and low energy consumption, take up an area less, and operating cost is low, and management service is convenient, has a good application prospect.

Description

A kind of rural domestic sewage treatment system
Technical field
The present invention relates to field of environment engineering, more particularly relate to a kind of rural domestic sewage treatment system.
Background technology
China rural area generates more than 80 hundred million tons of sanitary sewage every year, and 96% village does not have discharge conduit and sewage disposal system System, sanitary sewage arbitrarily discharge.China's domestic sewage in rural areas has following characteristics:(1) wide, dispersion.The geography point of village dispersion Cloth feature causes sewage to disperse, it is difficult to collect.(2) source is more.Other than the sewage from human faecal mass, kitchen generation, also family Front yard cleaning, house refuse stack diafiltration and the sewage of generation.(3) increase fast.Raising with life of farmers level and rural area The yield of living-pattern preservation, sanitary sewage also increases.(4) handling rate is low.
Untreated sanitary sewage discharges wantonly, seriously polluted the ecological environment in rural area, directly threatens vast farmers The health of the masses and the economic development in rural area.On the one hand, untreated sanitary sewage flows automatically to the river of hypsography low-lying In the surface water bodies such as stream, lake and pond, all kinds of water sources are seriously polluted;On the other hand, sanitary sewage is also disease spread of infection Source, be easy to cause generation and the prevalence of some areas infectious disease, endemic disease and zoonosis.Current whole nation rural area Tap water popularity rate only has 34% or so, and also peasant has safe drinking water more than 300,000,000.
Invention content
It is an object of the invention to overcome defect of the existing technology, a kind of rural domestic sewage treatment system is provided.
To achieve the goals above, the technical solution adopted by the present invention is as follows:
The rural domestic sewage treatment system of the present invention, including pretreatment system, anaerobic biofilter and artificial swamp system System;The pretreatment system, anaerobic biofilter and artificial wet land system pass sequentially through pipeline and are connected to;The pretreatment system packet Include grid setting pot and oil separator;The artificial wet land system includes multiple wetland units, and multiple wetland units are stepped Distribution;Domestic sewage in rural areas is concentrated in grid setting pot, bulky grain sundries and sand setting is removed, is re-fed into oil separator and carries out Sewage after separation is sent into anaerobic biofilter and carries out Anaerobic Treatment, by life in the countryside after Anaerobic Treatment by water-oil separating Sewage is sent into artificial wet land system, is percolated to domestic sewage in rural areas, is finally discharged and fills from the water outlet of artificial wet land system It irrigates periphery farmland or is directly discharged into river, complete rural domestic sewage treatment.
Preferably, the domestic sewage in rural areas is 3-20h in the hydraulic detention time of anaerobic biofilter.
Preferably, the anaerobic biofilter top is equipped with packing layer, and lower part is equipped with sludge blanket;Described filler layer by up to Under successively be equipped with Shells, sandy gravel stratum and sial system porous material layer;The domestic sewage in rural areas is from the pond of anaerobic biofilter Bottom enters, and passes through sludge blanket, sial system porous material layer, sandy gravel stratum and Shells successively, goes out to be delivered to Manual moist from pond top row Ground system.
Preferably, the Shells are made of the shell powder that grain size is 100-500 mesh.
Preferably, the thickness of the sludge blanket is 25-55cm;The thickness of sial system porous material layer is 30-90cm; The thickness of the sandy gravel stratum is 20-60cm;The thickness of the Shells is 15-50cm.
Preferably, the artificial wet land system includes 2-5 wetland unit;Each wetland unit includes topsoil and plant Nitride layer, each topsoil are equipped with water outlet;The domestic sewage in rural areas enters artificial swamp system at the top of anaerobic biofilter The layer of plants of the highest wetland unit in position in system, then from the topsoil of the wetland unit into the plant of next wetland unit Layer is repeated above operation until domestic sewage in rural areas is discharged from the water outlet of the last one wetland unit topsoil.
Preferably, area is sequentially reduced the multiple wetland unit from top to bottom.
Preferably, the topsoil is mixed by sugar refinery red mud and soil, the grain size of sugar refinery red mud and soil For 1-5mm;The layer of plants be Eichhornia crassipes, green watermifoil, frogbit, Scirpus tabernaemontani, reed, water certain herbaceous plants with big flowers, oenanthe stolonifera, rush, Herba Cyperi Glomerati, One or more kinds of mixed plantings of cattail.
Preferably, the sludge 1-4 of the sludge blanket is replaced primary, and the sludge cleared is applied as organic agriculture fertilizer.
The present invention is by adopting the above-described technical solution, have the advantages that:
1, there are many wetland plants for plantation in artificial wet land system of the invention, and ornamental value is high, is directly combined with greening, Implemented together with the rural development and ecological construction that locality can be coordinated;Secondly, wetland plant rhizosphere area of the invention has More rich microorganism provides enough analysts for system at sewage, is conducive to degradation of organic substances, is carried out to nitrogen compound Denitrogenation converts phosphorus compound, and the root zone of wetland plant is the existence of microorganism and degradation nutriment that provide must Want place and aerobic anaerobic condition;Shallower topsoil is arranged in the present invention, microorganism of the oxygen to filter layer can be fully passed, with biography The active sludge treatment process of system can save 60% or more capital cost.
2, anaerobic biofilter of the invention by lower from above having set gradually sludge blanket, sial system porous material layer, gravel Layer and Shells;And sewage is contacted with these fillers successively, sludge blanket content of microorganisms is high and type is abundant, can fully with dirt Organic matter contact in water, decomposing organic matter;Sial system porous material layer strong adsorption, can increase the attachment surface of microorganism Product, the microorganism concn through immobilization are improved, and ensure that the high concentration and high activity of microorganism, sial system porous material Aperture structure is conducive to improve its mass-transfer performance, is conducive to nutriment and enters material internal for microorganism decomposition utilization, simultaneously It is also beneficial to the metabolite discharge material outer of microorganism generation;Sandy gravel stratum is of low cost, outstanding in further filter sewage Float;Shells are made of the shell powder that grain size is 100-500 mesh, shell powder, and especially extra large oyster shells foot couple phosphorus element has Preferable absorption potential.
3, artificial wet land system is provided with multiple wetland units by the present invention, multiple wetland osmosis systems is built, to have Machine the technology that biological cleaning processing and multilayer diafiltration clean are handled is combined together, substantially increases the purification effect to sewage Fruit.It during treated sewage, is effectively treated outside the organic matter in sewage and nitrogen, phosphorus, also passes through physical and chemical adsorption, precipitation The effects that, trace element necessary to a large amount of plant growths is secured, the wetland plant growth that topsoil is planted can be promoted good It is good, and the organic matter in sewage can be assimilated under the action of edaphon and root system of plant by soil so that and soil is organic Matter content increases, and soil fertility is improved, and extends filtration system service life.
4, the present invention effectively combines artificial swamp, biologic treating technique and multilayer diafiltration techniques, and is carried out to this 3 kinds of technologies Organic assembling and integrated, so as to effectively being removed to suspended matter, total phosphorus, total nitrogen, the ammonia nitrogen etc. in sewage, TN removals It is 93.36%, NH3-N removal rates be 87.80%, NH4-N removal rates is that 87.97%, TP is gone that rate, which is 87.42%, DTN removal rates, Be 85.87%, SS removal rates it is 94.03% except rate is 93.84%, DTP removal rates, effluent quality is satisfied by country《Cities and towns are dirty Water treatment plant's pollutant emission standard》(GB/T18918-2002) standard;And low energy consumption for the rural sewage treatment system of the present invention, Take up an area few, need additionally to add any auxiliary agent, can continous way treated sewage, it is energy-efficient, be easy management operation, have good Application prospect.
Description of the drawings
Fig. 1 is the process flow chart of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, preferred embodiment is enumerated below, to this hair Bright further description.However, it is necessary to illustrate, many details listed in specification are used for the purpose of making reader to this There are one thorough explanations for the one or more aspects of invention, can also realize the present invention's even without these specific details These aspects.
Embodiment 1
As shown, the rural domestic sewage treatment system of the present invention, including pretreatment system, anaerobic biofilter and people Work wet land system;The pretreatment system, anaerobic biofilter and artificial wet land system pass sequentially through pipeline and are connected to;
The pretreatment system includes grid setting pot and oil separator;
The anaerobic biofilter top is equipped with packing layer, and lower part is equipped with sludge blanket;Described filler layer is from top to bottom successively Equipped with Shells, sandy gravel stratum and sial system porous material layer;The thickness of the sludge blanket is 25-55cm;The sial system is porous The thickness of material layer is 30-90cm;The thickness of the sandy gravel stratum is 20-60cm;The thickness of the Shells is 15-50cm;This The thickness of preferred sludge blanket is 55cm in embodiment;The thickness of sial system porous material layer is 30cm;The sandy gravel stratum Thickness is 60cm;The thickness of the Shells is 50cm;The Shells are made of the shell powder that grain size is 100-500 mesh, Preferable particle size is that the shell powder of 100 mesh forms Shells in the present embodiment;
The artificial wet land system includes 2-5 stepped distributions and the wetland list that area is sequentially reduced from top to bottom Member, preferably 3 wetland units form artificial wet land systems in the present embodiment;Each wetland unit includes topsoil and plant Layer, each topsoil are equipped with water outlet;The topsoil is mixed by sugar refinery red mud and soil, sugar refinery red mud and The grain size of soil is 1-5mm, and preferable particle size is the mixture of sugar refinery red mud and soil of 1mm in the present embodiment;The layer of plants For Eichhornia crassipes, green watermifoil, frogbit, Scirpus tabernaemontani, reed, water certain herbaceous plants with big flowers, oenanthe stolonifera, rush, Herba Cyperi Glomerati, cattail one kind or it is a kind of with On mixed planting, the mixed planting of Eichhornia crassipes, green watermifoil and frogbit is preferably planted in the present embodiment;
Domestic sewage in rural areas is concentrated in grid setting pot, bulky grain sundries and sand setting is removed, is re-fed into oil separator Water-oil separating is carried out, sewage after separation is sent into anaerobic organism pond and carries out Anaerobic Treatment, the domestic sewage in rural areas is from detesting The bottom of pond of oxygen biofilter enters, and passes through sludge blanket, sial system porous material layer, sandy gravel stratum and Shells, life in the countryside successively Sewage is 3-20h in the hydraulic detention time of anaerobic biofilter, and domestic sewage in rural areas goes out from the pond top row of anaerobic biofilter It is delivered to artificial wet land system, into the layer of plants of the highest wetland unit in position in artificial wet land system, then from the wetland list The topsoil of member enters the layer of plants of next wetland unit, repeats above operation wet from the last one until domestic sewage in rural areas The water outlet discharge of ground unit topsoil irrigates periphery farmland or is directly discharged into river, completes sewage disposal;The sludge of sludge blanket 1-4 is replaced once, and the sludge cleared is applied as organic agriculture fertilizer.
Sewage treatment capacity is analyzed
The rural domestic sewage treatment system provided using the embodiment of the present invention 1 carries out at purification domestic sewage in rural areas Reason, the results are shown in Table 1.
TN DTN NH3-N NH4-N TP DTP SS
Before processing (mg/L) 23.53 20.32 0.82 18.53 6.33 3.75 210.06
After processing (mg/L) 2.96 1.35 0.10 2.23 0.39 0.53 12.55
Removal rate/% 87.42 93.36 87.80 87.97 93.84 85.87 94.03
Table 1
Wherein, TN is total nitrogen in water body;DTN is solubilised state total nitrogen in water body;NH3- N is ammonia nitrogen in water body;NH4- N is water Nitrate nitrogen in body;TP is total phosphorus in water;DTP is dissolved total phosphorus in water body;SS is total suspended matter in water body.
As shown in table 1, sewage diafiltration clean processing method using the present invention can effectively to sanitary sewage at Reason, TN removal rates are that 87.42%, DTN removal rates are 93.36%, NH3- N removal rates are 87.80%, NH4- N removal rates are It is 85.87%, SS removal rates is 94.03% that 87.97%, TP removal rate, which are 93.84%, DTP removal rates, and effluent quality is satisfied by Country《Urban wastewater treatment firm pollutant emission standard》(GB/T18918-2002) standard.And the rural sewage treatment of the present invention System energy consumption is low, takes up an area less, is easy management operation, has a good application prospect.

Claims (9)

1. a kind of rural domestic sewage treatment system, it is characterised in that:Including pretreatment system, anaerobic biofilter and Manual moist Ground system;The pretreatment system, anaerobic biofilter and artificial wet land system pass sequentially through pipeline and are connected to;The pretreatment system System includes grid setting pot and oil separator;The artificial wet land system includes multiple wetland units, and multiple wetland units are in rank Scalariform is distributed;Domestic sewage in rural areas is concentrated in grid setting pot, bulky grain sundries and sand setting is removed, is re-fed into oil separator Water-oil separating is carried out, the sewage after separation, which is sent into anaerobic biofilter, carries out Anaerobic Treatment, by rural area after Anaerobic Treatment Sanitary sewage is sent into artificial wet land system, is percolated to domestic sewage in rural areas, is finally arranged from the water outlet of artificial wet land system Go out to irrigate periphery farmland or be directly discharged into river, completes rural domestic sewage treatment.
2. rural domestic sewage treatment system according to claim 1, it is characterised in that:The domestic sewage in rural areas is being detested The hydraulic detention time of oxygen biofilter is 3-20h.
3. rural domestic sewage treatment system according to claim 1, it is characterised in that:The anaerobic biofilter top Equipped with packing layer, lower part is equipped with sludge blanket;It is porous that described filler layer is from top to bottom equipped with Shells, sandy gravel stratum and sial system successively Material layer;The domestic sewage in rural areas enters from the bottom of pond of anaerobic biofilter, passes through sludge blanket, sial system porous material successively Layer, sandy gravel stratum and Shells, go out to be delivered to artificial wet land system from pond top row.
4. rural domestic sewage treatment system according to claim 3, it is characterised in that:The Shells are by grain size The shell powder of 100-500 mesh forms.
5. rural domestic sewage treatment system according to claim 3, it is characterised in that:The thickness of the sludge blanket is 25-55cm;The thickness of sial system porous material layer is 30-90cm;The thickness of the sandy gravel stratum is 20-60cm;The shellfish The thickness of shell is 15-50cm.
6. rural domestic sewage treatment system according to claim 1, it is characterised in that:The artificial wet land system includes 2-5 wetland unit;Each wetland unit includes topsoil and layer of plants, and each topsoil is equipped with water outlet;The agriculture Layer of plants of village's sanitary sewage from anaerobic biofilter top into the highest wetland unit in position in artificial wet land system, then from The topsoil of the wetland unit enters the layer of plants of next wetland unit, repeats above operation until domestic sewage in rural areas is from most The water outlet of the latter wetland unit topsoil is discharged.
7. rural domestic sewage treatment system according to claim 6, it is characterised in that:The multiple wetland unit is by upper Area is sequentially reduced down.
8. rural domestic sewage treatment system according to claim 6, it is characterised in that:The topsoil is red by sugar refinery Mud and soil mix, and the grain size of sugar refinery red mud and soil is 1-5mm;The layer of plants be Eichhornia crassipes, green watermifoil, One or more kinds of mixed plantings of frogbit, Scirpus tabernaemontani, reed, water certain herbaceous plants with big flowers, oenanthe stolonifera, rush, Herba Cyperi Glomerati, cattail.
9. rural domestic sewage treatment system according to claim 3, it is characterised in that:The sludge 1-4 of the sludge blanket It replaces in year once, the sludge cleared is applied as organic agriculture fertilizer.
CN201810554164.7A 2018-06-01 2018-06-01 A kind of rural domestic sewage treatment system Pending CN108409069A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109320022A (en) * 2018-11-22 2019-02-12 四川海天生环科技有限公司 A kind of sewage treatment process based on food chain ecologic reactor
CN110902939A (en) * 2019-11-11 2020-03-24 南京信息工程大学 Sewage treatment system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6159371A (en) * 1997-05-30 2000-12-12 Albuquerque Public Schools District No. 12 Constructed wetlands remediation system
CN103265152A (en) * 2013-06-14 2013-08-28 山西太钢不锈钢股份有限公司 Domestic sewage treatment method
CN103880244A (en) * 2014-03-18 2014-06-25 三峡大学 Comprehensive treatment method for liquid dung of livestock and poultry and domestic wastewater in country
CN106854029A (en) * 2015-12-09 2017-06-16 辽宁省环境科学研究院 A kind of energy-conservation low-temperature resistance type courtyard-style sewage treatment unit
CN206428131U (en) * 2017-02-04 2017-08-22 尚川(北京)水务有限公司 A kind of rural domestic sewage treatment system
CN207130121U (en) * 2017-08-31 2018-03-23 湖南省水利水电科学研究院 A kind of low consumption Peasants Joy sewage disposal system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6159371A (en) * 1997-05-30 2000-12-12 Albuquerque Public Schools District No. 12 Constructed wetlands remediation system
CN103265152A (en) * 2013-06-14 2013-08-28 山西太钢不锈钢股份有限公司 Domestic sewage treatment method
CN103880244A (en) * 2014-03-18 2014-06-25 三峡大学 Comprehensive treatment method for liquid dung of livestock and poultry and domestic wastewater in country
CN106854029A (en) * 2015-12-09 2017-06-16 辽宁省环境科学研究院 A kind of energy-conservation low-temperature resistance type courtyard-style sewage treatment unit
CN206428131U (en) * 2017-02-04 2017-08-22 尚川(北京)水务有限公司 A kind of rural domestic sewage treatment system
CN207130121U (en) * 2017-08-31 2018-03-23 湖南省水利水电科学研究院 A kind of low consumption Peasants Joy sewage disposal system

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
宁夏回族自治区环境保护厅等: "《宁夏农村环境保护规划与技术》", 31 January 2014, 中国环境出版社 *
环境保护部: "《人工湿地污水处理工程技术规范 中华人民共和国国家环境保护标准HJ 2005-2010》", 17 December 2010, 环境保护部 *
董申伟等: "江门潭江流域农村生活污水分散处理技术工程设计 ", 《广东化工》 *
谢钦铭: "《生态渔业实用技术》", 30 June 2013, 海洋出版社 *
赵开弘: "《环境微生物学》", 31 July 2009, 华中科技大学出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109320022A (en) * 2018-11-22 2019-02-12 四川海天生环科技有限公司 A kind of sewage treatment process based on food chain ecologic reactor
CN110902939A (en) * 2019-11-11 2020-03-24 南京信息工程大学 Sewage treatment system

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