CN105174646A - Agricultural product small processing industry sewage processing system and running method thereof - Google Patents
Agricultural product small processing industry sewage processing system and running method thereof Download PDFInfo
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- CN105174646A CN105174646A CN201510658219.5A CN201510658219A CN105174646A CN 105174646 A CN105174646 A CN 105174646A CN 201510658219 A CN201510658219 A CN 201510658219A CN 105174646 A CN105174646 A CN 105174646A
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Abstract
The invention provides an agricultural product small processing industry sewage processing system and a running method thereof. The sewage processing system comprises a grating/grit chamber, a filter tank, an anaerobic tank, a primary artificial wetland tank and a secondary artificial wetland tank which are sequentially communicated. By means of the sewage processing system, the processing habits of villages are fully used, and the problem of irregular sewage discharge is solved; sewage processing unit sub-chambers are connected in series and matched with different plants respectively, and therefore plant growth and sewage removal are facilitated; when the technology is popularized, the pollution problem caused by sewage produced in the small processing industry of major rural areas can be solved, and the system has great significance in protecting the water environment of villages.
Description
(1) technical field
The present invention relates to sewage treatment area, be specifically related to a kind of Sewage treatment systems and operation method thereof of agricultural-food small processing industry.
(2) background technology
Agricultural-food small processing industry is the important sources of rural economy, but this kind of processing industry, usually have certain sewage and produce.Because this kind of processing industry divides spreading, be usually produce in units of family, the single household water yield is little, but due to amount many, total Water is but very large, and is seasonal pollution, usually becomes the primary pollution source of district pollution.Such as dried bamboo shoots, hang the processing industry such as melon, bean product.This kind of sewage quality water yield has following characteristics, needs sewage water treatment method targetedly and deals carefully with it.
(1) draining is Intermittent Features, and impact load is large;
(2) single household total Water is little, but can discharge within several minutes;
(3) many containing silt particle, plant residue;
(4) seasonal obviously only have some months draining in 1 year, processing is also likely that a couple of days, just draining was once season;
(5) some processing industry produces saline sewage.
Rural areas, usually utilizes its residential quarter or periphery vacant lot to carry out processing of farm products, generally has certain vacant lot, greenery patches at its periphery, and these greenery patchess, vacant lot can be used for sewage disposal.Artificial swamp a kind ofly utilizes root system of plant and medium synergy process biochemical is good, without the proper method of venomous injurant sewage, artificial swamp is usually for the process of domestic sewage in rural areas.Because the emission equivalent of farming industry sewage and water quality characteristics and sanitary sewage have significant difference, conventional design method design can not be indiscriminately imitated.Due to single household operation, economic force is weak, cannot carry out conventional sewage disposal.Therefore, the present invention is directed to this present situation, a kind of constructed wetland waste water treatment technology method that can be used for the little water yield, seasonal strong, convenient management is provided.
(3) summary of the invention
For the deficiency that prior art exists, the object of this invention is to provide a kind of convenient management, treatment effect are good, overcome the problems such as the water yield is unstable Sewage treatment systems and operation method thereof.
For achieving the above object, the present invention adopts following technical scheme:
A Sewage treatment systems for agricultural-food small processing industry, described Sewage treatment systems comprise be communicated with successively grid/settling pit, filtering basin, anaerobic pond, one-level artificial swamp pond and secondary artificial swamp pond;
Sandstone filtrate is filled with in described filtering basin;
The biologic packing material of bamboo and wood material is filled with in described anaerobic pond;
Described one-level artificial swamp pond is Horizontal subsurface constructed wetland pond, and both sides, pond are respectively arranged with water-in and water outlet; Described one-level artificial swamp pond is distributed with three layers of filler from bottom to top, and lower floor is pebble bed (usual particle diameter is 2 ~ 20cm), middle layer is coarse sands layer (usual particle diameter is 1 ~ 2mm), upper strata is fine sand layer (usual particle diameter is 0.01 ~ 0.1mm); Simultaneously according to sewage quality configuration plant;
Described secondary artificial swamp pond is vertical current constructed wetland pond, and pond one side-lower is provided with water outlet; Described secondary artificial swamp pond is distributed with three layers of filler from bottom to top, and lower floor is pebble bed (usual particle diameter is 2 ~ 20cm), middle layer is coarse sands layer (usual particle diameter is 1 ~ 2mm), upper strata is fine sand layer (usual particle diameter is 0.01 ~ 0.1mm); Simultaneously according to sewage quality configuration plant.
Containing the more solid sundries such as sand, plant residue (slag), therefore, first sewage enter grid/settling pit due to normal in the sewage that processing of farm products produces, then enter the filtering basin that sandstone filtrate is housed and process.The sandstone filtrate of filling in filtering basin, to gather materials on the spot as principle, can adopt particle diameter to be the sandstone of 2 ~ 3mm or particle diameter to be the sheet rubble for building (that is: melon seeds sheet) of 2 ~ 3mm.
Described grid/settling pit and filtering basin may be combined with and are designed to a pond, and the useful capacity in pond is not less than a day water displacement volume.This design can cushion the effect of draining instability, opposing impact load completely.The pond body material in combination pond can adopt the mixed or glass reinforced plastic of steel concrete, brick etc., is principle with non-leakage.
Partition wall can be set further in described anaerobic pond, be divided into more than 2 lattice (recommend 3 ~ 4 lattice, depending on the water yield, greatly then lattice number is many for the water yield), can guarantee that the anerobic sowage treatment time produced every day reaches more than 2 days thus, eliminate the negative effect of wastewater influent water yield instability further.The biologic packing material of the bamboo and wood material of filling in described anaerobic pond is preferably bamboo silk, batten, bamboo branch etc., its cheap, easy making, effective.
The material in described one-level artificial swamp pond or secondary artificial swamp pond can adopt brick mix structure, and cost is relatively low, and the three layers of filler (pebble bed, coarse sands layer, fine sand layer) in pond are often high is layer by layer generally 200 ~ 500mm.Also can arrange partition wall in described one-level or secondary artificial swamp pond and be divided into 1 ~ 3 lattice, every lattice hydraulic detention time is no less than 1 day, guarantee water quality and the water yield more stable.The plants configuration in one-level or secondary artificial swamp pond is determined because of water quality, for the sewage of saliferous high (saltiness is greater than 5000mg/L), should adopt happiness salt or salt-tolerant plant, such as reed, Value of Spartina Anglica, alkali wormwood artemisia etc.; For the sewage of saliferous low (saltiness is less than 5000mg/L), can adopt that native country draft, perennial, biomass are large, fibrous root system and the plant of well developed root system, such as reed, Canna generalis Bailey, the tuber of dwarf lilyturf, orchid pseudo-ginseng etc.
Sewage treatment systems of the present invention the agricultural-food small processing industry that is suitable for for such as: dried bamboo shoots, hang the processing industries such as melon, bean product, kudzuvine root starch, the general single household of sewage drainage amount in processing season is 1 ~ 3m
3/ d.
Present invention also offers a kind of operation method of described Sewage treatment systems, described operation method is:
The raw waste water produced by agricultural-food small processing industry is introduced into grid/settling pit and carries out coarse filtration and sedimentation; After filter, enter anaerobic pond again carry out anaerobic treatment, the hydraulic detention time of anaerobic pond is more than 2 days (being generally 3 ~ 4 days); Sewage after anaerobic treatment enters the one-level artificial swamp pond (major function is for removing CODcr) of horizontal drowned flow formula by the side water-in of side, one-level artificial swamp pond, the hydraulic detention time in one-level artificial swamp pond, for being no less than 1 day (being generally 1 ~ 3 day), passes through the side water outlet water outlet of one-level artificial swamp pond opposite side afterwards; The water outlet in one-level artificial swamp pond is by the pond top water distribution of water distributor vertical current secondary artificial swamp pond (major function is remove ammonia nitrogen), the hydraulic detention time in secondary artificial swamp pond for being no less than 1 day (being generally 1 ~ 3 day), under ooze after by the water outlet water outlet of pond one side-lower.
Water after Sewage treatment systems process of the present invention enters to be observed sampled well and enters and receive sewage body.
It should be noted that, according to the general knowledge in Wastewater Treatment Design field, the circulation of sewage in Sewage treatment systems of the present invention between each pond can realize gravity flow by means of the ubiquitous topographical elevation difference in Rural areas, in this case can not consider with pump with investment reduction and working cost; If landform can not be flow automatically, then establish a conventional lift pump in water inlet place or water outlet place as required.
Beneficial effect of the present invention is:
China's people in the countryside occupy very large proportion, and its Economic development is relatively slow.In recent years, peasant utilize local agricultural resource to process agricultural-food sell is the mainstay of at present a lot of area countryside economy.But these processing industry major parts all can produce water pollution problems, and the seasonal farming industry that existing sewage disposal technology disperses these points of contamination, sewage quantity is little, emission equivalent is mixed and disorderly is folded one's hands helplessly substantially.Existing artificial swamp, focuses on processing domestic sewage in rural areas, does not have the seasonal processing industry of emission equivalent to be also difficult to be competent at for this kind of.The Sewage treatment systems of the present invention's design, take full advantage of rural area processing custom, that is: the process-cycle is one day one-period, solves the erratic problem of sewage discharge.Sewage treatment unit locellus is connected, and is equipped with different plant respectively, is conducive to the growth of plant and the removal of pollutent.This technology, as promoted, can solve this type of pollution problem of most of Rural areas, significant for Rural Water Environment protection.
(4) accompanying drawing explanation
Fig. 1 is the schema of Sewage treatment systems of the present invention under operation condition;
Wherein, 1-grid/settling pit, 2-filtering basin, 3-anaerobic pond, 4-one-level artificial swamp pond, 5-secondary artificial swamp pond, 6-observe sampled well, side, 7-one-level artificial swamp pond water-in, side, 8-one-level artificial swamp pond water outlet, 9-secondary artificial swamp pond one side-lower water outlet.
(5) embodiment
Below by specific embodiment, the present invention is further detailed, but protection scope of the present invention is not limited in this.
Embodiment 1
A Sewage treatment systems for agricultural-food small processing industry, described Sewage treatment systems comprise be communicated with successively grid/settling pit 1, filtering basin 2, anaerobic pond 3, one-level artificial swamp pond 4 and secondary artificial swamp pond 5; Sandstone filtrate is filled with in described filtering basin; The biologic packing material of bamboo and wood material is filled with in described anaerobic pond; Described one-level artificial swamp pond is Horizontal subsurface constructed wetland pond, and both sides, pond are respectively arranged with water-in 7 and water outlet 8; Described one-level artificial swamp pond is distributed with three layers of filler from bottom to top, and lower floor is pebble bed (cobble particle diameter is 2 ~ 20cm), middle layer is coarse sands layer (coarse sand particle diameter is 1 ~ 2mm), upper strata is fine sand layer (fine sand particle diameter is 0.01 ~ 0.1mm); Simultaneously according to sewage quality configuration plant; Described secondary artificial swamp pond is vertical current constructed wetland pond, and pond one side-lower is provided with water outlet 9; Described secondary artificial swamp pond is distributed with three layers of filler from bottom to top, and lower floor is pebble bed (cobble particle diameter is 2 ~ 20cm), middle layer is coarse sands layer (coarse sand particle diameter is 1 ~ 2mm), upper strata is fine sand layer (fine sand particle diameter is 0.01 ~ 0.1mm); Simultaneously according to sewage quality configuration plant.
For a fresh bamboo shoot preliminary working.Fresh bamboo shoot processing needs are peeled off, clean, boiling, pickled, wherein clean, boiling can produce sewage.Usual each household is processed total water production rate and is approximately 0.2 ~ 1.5 ton, but discharges uneven, is the draining in afternoon of processing every day in season substantially, and disposable emptying.The silt particle that residual assorted and bamboo shoot shell after sewage contains the cleaning of a large amount of bamboo shoot, boiling brings, sewage take organism as main pollution.If use conventional sewage treatment process, impact load is very big.Adopt the inventive method can play the effect of anti-shock loading.
The waste water processes that fresh bamboo shoot processing produces is as follows:
(1) pre-treatment
The raw waste water that fresh bamboo shoot processing produces is introduced into grid/settling pit 1 and carries out coarse filtration and sedimentation, then filters through filter tank 2.Grid/settling pit 1 and filtering basin 2 are combined into a whole pond.By maximum amount of water 1.5 tons design, the size of grid/settling pit 1: 0.5 × 1.0 × 1.0 meters; The size of filtering basin 2: 2.0 × 2.5 × 1 meter.The total useful volume of whole Chi 1.5 cubic metres.Pond material is that bottom adopts steel concrete, and sidewall adopts brick mix structure.Wherein the filler of filtering basin adopts particle diameter to be 2 ~ 3mm sandstone or melon seeds sheet for building.
(2) anaerobic treatment
Enter anaerobic pond 3 through step (1) pretreated sewage and carry out anaerobic treatment.The organic matter of sewage content produced due to fresh bamboo shoot processing is high, and anaerobic pond 3 hydraulic detention time selects 3 days.The size of anaerobic pond 3: 2 × 2.0 × 1.5 meters, cubic capacity 6.0 cubic metres, useful volume 4.5 cubic metres.Bamboo silk filler is joined, consumption 4.5 cubic metres in anaerobic pond 3.
(3) one-level artificial wetland treatment
Water after step (2) anaerobic treatment enters one-level artificial swamp pond 4 by the side water-in 7 of side, one-level artificial swamp pond 4, and the hydraulic detention time in one-level artificial swamp pond 4 is 2 days.One-level artificial swamp pond 4 is Horizontal subsurface constructed wetland, and pond body material adopts brick mix structure, size: 2 × 2.5 × 1.2 meters.Filler is divided into three layers, orlop is particle diameter 2 ~ 20cm cobble water flowing layer (floor height 200mm), middle layer is particle diameter 1 ~ 2mm coarse sands layer (floor height 500mm), and the superiors are particle diameter 0.01 ~ 0.1mm fine sand layer for building (floor height 400mm).By porosity 0.3, useful volume about 1.5 cubic metres.The plants configuration in one-level artificial swamp pond 4 is the Canna generalis Bailey of equal proportion, orchid pseudo-ginseng, the tuber of dwarf lilyturf.
(4) secondary artificial wetland treatment
Water after step (3) one-level artificial wetland treatment is by side water outlet 8 water outlet of one-level artificial swamp pond 4 opposite side, and enter secondary artificial swamp pond 5, the hydraulic detention time in secondary artificial swamp pond 5 is 2 days.Secondary artificial swamp pond 5 is vertical current constructed wetland, and its size, material and filler are with one-level artificial swamp pond 4.Water intake mode adopts top, water distributor pond water distribution, under ooze after by water outlet 9 water outlet of pond one side-lower.The plants configuration in secondary artificial swamp pond 5 is reed, the Medulla Junci of equal proportion.
(5) qualified discharge
Water after step (4) secondary artificial wetland treatment enters to be observed sampled well 6 and enters and receive sewage body.Observe the size of sampled well 6: 0.3 × 0.3 × 0.8 meter.
Claims (10)
1. a Sewage treatment systems for agricultural-food small processing industry, is characterized in that, described Sewage treatment systems comprise be communicated with successively grid/settling pit, filtering basin, anaerobic pond, one-level artificial swamp pond and secondary artificial swamp pond;
Sandstone filtrate is filled with in described filtering basin;
The biologic packing material of bamboo and wood material is filled with in described anaerobic pond;
Described one-level artificial swamp pond is Horizontal subsurface constructed wetland pond, and both sides, pond are respectively arranged with water-in and water outlet; Described one-level artificial swamp pond is distributed with three layers of filler from bottom to top, and lower floor is pebble bed, middle layer is coarse sands layer, upper strata is fine sand layer; Simultaneously according to sewage quality configuration plant;
Described secondary artificial swamp pond is vertical current constructed wetland pond, and pond one side-lower is provided with water outlet; Described secondary artificial swamp pond is distributed with three layers of filler from bottom to top, and lower floor is pebble bed, middle layer is coarse sands layer, upper strata is fine sand layer; Simultaneously according to sewage quality configuration plant.
2. the Sewage treatment systems of agricultural-food small processing industry as claimed in claim 1, is characterized in that, the sandstone filtrate of filling in described filtering basin adopts particle diameter to be the sandstone of 2 ~ 3mm or particle diameter to be the sheet rubble for building of 2 ~ 3mm.
3. the Sewage treatment systems of agricultural-food small processing industry as claimed in claim 1, it is characterized in that, described grid/settling pit becomes a pond with filtering basin unitized design.
4. the Sewage treatment systems of agricultural-food small processing industry as claimed in claim 1, is characterized in that, arrange partition wall in described anaerobic pond, be divided into 3 ~ 4 lattice.
5. the Sewage treatment systems of agricultural-food small processing industry as claimed in claim 1, is characterized in that, the biologic packing material of the bamboo and wood material of filling in described anaerobic pond is the mixed fillers of one or more arbitrary proportions in bamboo silk, batten, bamboo branch.
6. the Sewage treatment systems of agricultural-food small processing industry as claimed in claim 1, is characterized in that, the every high layer by layer of three layers of filler in described one-level artificial swamp pond or secondary artificial swamp pond is 200 ~ 500mm.
7. the Sewage treatment systems of agricultural-food small processing industry as claimed in claim 1, is characterized in that, arrange partition wall, be divided into 1 ~ 3 lattice in described one-level artificial swamp pond or secondary artificial swamp pond.
8. an operation method for Sewage treatment systems as claimed in claim 1, is characterized in that, described operation method is:
The raw waste water produced by agricultural-food small processing industry is introduced into grid/settling pit and carries out coarse filtration and sedimentation; After filter, enter anaerobic pond again carry out anaerobic treatment, the hydraulic detention time of anaerobic pond is more than 2 days; Sewage after anaerobic treatment enters the one-level artificial swamp pond of horizontal drowned flow formula by the side water-in of side, one-level artificial swamp pond, the hydraulic detention time in one-level artificial swamp pond, for being no less than 1 day, passes through the side water outlet water outlet of one-level artificial swamp pond opposite side afterwards; The water outlet in one-level artificial swamp pond by the pond top water distribution of water distributor in vertical current secondary artificial swamp pond, the hydraulic detention time in secondary artificial swamp pond for being no less than 1 day, under ooze after by the water outlet water outlet of pond one side-lower.
9. operation method as claimed in claim 8, it is characterized in that, the hydraulic detention time of described anaerobic pond is 3 ~ 4 days.
10. operation method as claimed in claim 8, it is characterized in that, the hydraulic detention time in described one-level artificial swamp pond or secondary artificial swamp pond is 1 ~ 3 day.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673377A (en) * | 2017-02-24 | 2017-05-17 | 重庆梦赛力士光电股份有限公司 | Device and method for treatment of industrial wastewater by utilizing artificial wetland |
| CN110002693A (en) * | 2019-05-13 | 2019-07-12 | 贵州民族大学 | A kind of construction method of block-proof type composite vertical current artificial wetland |
| CN110902939A (en) * | 2019-11-11 | 2020-03-24 | 南京信息工程大学 | Sewage treatment system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101236175B1 (en) * | 2012-11-05 | 2013-02-26 | 서동철 | A sewage disposal system using constructed wetlands with repurification function |
| CN203741189U (en) * | 2014-03-11 | 2014-07-30 | 新乡职业技术学院 | Sewage disposal device |
| CN204097277U (en) * | 2014-08-04 | 2015-01-14 | 华北水利水电大学 | Plural serial stage modularization domestic sewage processing system |
-
2015
- 2015-10-13 CN CN201510658219.5A patent/CN105174646A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101236175B1 (en) * | 2012-11-05 | 2013-02-26 | 서동철 | A sewage disposal system using constructed wetlands with repurification function |
| CN203741189U (en) * | 2014-03-11 | 2014-07-30 | 新乡职业技术学院 | Sewage disposal device |
| CN204097277U (en) * | 2014-08-04 | 2015-01-14 | 华北水利水电大学 | Plural serial stage modularization domestic sewage processing system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673377A (en) * | 2017-02-24 | 2017-05-17 | 重庆梦赛力士光电股份有限公司 | Device and method for treatment of industrial wastewater by utilizing artificial wetland |
| CN110002693A (en) * | 2019-05-13 | 2019-07-12 | 贵州民族大学 | A kind of construction method of block-proof type composite vertical current artificial wetland |
| CN110902939A (en) * | 2019-11-11 | 2020-03-24 | 南京信息工程大学 | Sewage treatment system |
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