CN201999829U - Distributed sewage treatment system for rural life - Google Patents

Distributed sewage treatment system for rural life Download PDF

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Publication number
CN201999829U
CN201999829U CN2010206373099U CN201020637309U CN201999829U CN 201999829 U CN201999829 U CN 201999829U CN 2010206373099 U CN2010206373099 U CN 2010206373099U CN 201020637309 U CN201020637309 U CN 201020637309U CN 201999829 U CN201999829 U CN 201999829U
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CN
China
Prior art keywords
treatment
sewage
rural areas
domestic sewage
pretreatment
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CN2010206373099U
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Chinese (zh)
Inventor
冯智星
胡勇
罗志荣
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广东森洋环境保护工程设备有限公司
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Publication of CN201999829U publication Critical patent/CN201999829U/en

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Abstract

The utility model relates to a distributed sewage treatment system for rural life, and belongs to the field of multilevel treatment technology of water, waste water and sewage. The system comprises sewage collecting pipes or channels, a pretreatment system and an artificial wetland treatment unit, which are connected sequentially, and has the characteristics that the pretreatment system comprises a grille pool, a grit chamber, an adjustment pool and a hydrolysis acidification pool, which are connected sequentially, and the artificial wetland treatment unit comprises a high load horizontal underflow artificial wetland, a two-level vertical flow artificial wetland and a one-level horizontal underflow artificial wetland, which are connected with each other sequentially. The utility model integrally adopts microorganisms, plants and the physical, chemical and biological cooperative function to complete the sewage treatment, the process of the system combines the biological methods and artificial wetland sewage treatment technique together, compared with the traditional artificial wetland sewage treatment process, the distributed sewage treatment system has the advantages that the system occupies less lands and requires small investment on construction and operation, and is suitable for domestic sewage innocent treatment in countries and towns, so as to protect surrounding water environment and water resources.

Description

Distributing domestic sewage in rural areas by using treatment system
[technical field]
The utility model relates to a kind of multiple-stage treatment system of sanitary sewage, relates in particular to a kind ofly to be used for that carry out on a small scale in rural area, small towns, distributed domestic sewage processing system.
[background technology]
Domestic sewage in rural areas by using is mainly derived from washing, bathing and the kitchen waste water and the septic tank waste water etc. of villager and village peripheral part plant area dormitory building of worker.Sewage pollution thing composition is simple, easily handle, mainly contain pollutant components such as organic material, phosphorus and nitrogen, suspended substance and germ, and the water yield changes greatly.Present most domestic sewage in rural areas by using adopts the method for discharging naturally nearby, purifies by the self-purification capacity of taking in water body (gush in rivers, river, pond, depression, irrigation and drainage canal).
Along with the continuous propelling of new countryside construction, rural economy is developed rapidly.The rural area of flourishing surrounding city particularly, the standard of living of people in the countryside is improved, and consequent population growth obviously increases the domestic sewage in rural areas by using amount, and some areas have surpassed the self-purification capacity of original receiving water body.A large amount of hazardous and noxious substances flow into natural water, and the water body dissolved oxygen amount is descended, and Pollutant levels rise, and original ecosystem wrecks, the smelly blackout of water body, and mosquito grows.This not only makes water body lose original functions of use and landscape function, and has a strong impact on the surrounding area people's water safety and healthy, the food safety of serious threat water body periphery farmland farm crop.
At present, along with deepening continuously of national new countryside construction, domestic sewage in rural areas by using is handled and is come into one's own day by day.The national environmental protection Eleventh Five-Year Plan is included " the regulation rural environment promotes new socialist countryside construction " in the major fields and main task of environment protection in.Wherein, 2000 in the graceful small towns of built environment is finished 10,000 administrative village environment comprehensive regulations and is put into the environment protection priority project for the moderately well-off environmental action engineering in the rural area of target.In conjunction with " about strengthening the suggestion of rural environment protection work " of being united issue by Environmental Protection Department, " 12 " planning is pointed out emphasis is strengthened the domestic sewage in rural areas by using strength disposal.Take to disperse or concentrate relatively, multiple modes such as biology or soil processing, carry out domestic sewage in rural areas by using with suiting measures to local conditions and handle." suggestion " requires the rural areas lower in the density of population, that water environment capacity is relatively large, can utilize natural system on-the-spot disposal such as wetland, the ditch pool; In conjunction with rural methane facilities development and modify-water, change the lavatory, change the kitchen, change measures such as circle, progressively improve the sanitary sewage disposal rate; To preferentially build a collection of domestic sewage in rural areas by using processing demonstration project in China's Rural Water Environment pollution than serious area and water pollution control major river valley.
At present, sewage treatment process such as conventional municipal wastewater second-stage treatment technology, comprehensive utilization physics are held back, adsorbed, flocculation, coagulation and microorganism aerobic, anaerobism, the middle hazardous contaminant of can effectively removing, purify waste water, processing efficiency height, floor space are little, and technology maturation is reliable.But its high initial cost is difficult in the relative Rural areas widespread use that falls behind with state of the art of economy it with working cost and complicated technological operation flow process.In addition, owing to be equipped with such as mechanical grille water pump, the consumer of aerator, pressure filter etc., one ton of carbon that conventional two stage biological is disposed of sewage in the every treating water of factory then is accompanied by 3 tons of carbon emissions in atmospheric environment, thereby builds this type of Sewage Plant in a large number and will be unfavorable for energy-saving and emission-reduction.Artificial wetland treatment process becomes the new focus that solves the domestic sewage in rural areas by using handling problem in recent years.
Artificial wetland process is the wet land system of dispose of sewage artificial design-build, through engineering approaches.This wet land system has certain long-width ratio, form bed of packings by soil and matrix fill mixing, sewage is in the filler slit or the surface current mistake of bed body, and have in bed surface plantation that handling property is good, surviving rate is high, water resisting property is strong, growth cycle is long, the waterplant of attractive in appearance and economically valuable, form a unique ecosystem with sewage disposal function.
Artificial wetland process has good nitrogen, phosphorus removal effect, simultaneously organism also there is higher removal, and it only is with 1/3rd of scale secondary biochemical treatment technology that capital construction drops into, working cost is with 1/2nd of scale secondary biochemical treatment technology, regular job is safeguarded simple, thereby considers more to be adapted at the Rural areas from economic angle and use.Simultaneously, and the required electromechanical equipment of artificial wet land treating system is few, thereby considers more to be worthy to be popularized from energy-saving and emission-reduction control greenhouse gases aspect.But the required construction land area of artificial wetland process is big, is 3~5 times with the conventional secondary biochemical sewage treatment process of scale, has big difficulty aspect plan for land and coordination.In addition, because artificial wetland process still is in developmental stage at home, do not form as yet and improve and authority's technical specifications and technical system, make that the design of distributing artificial marsh sewage treatment system, the construction working amount of building up the local requirement of adaptation in the Rural areas are bigger, be difficult to realize popularization on a large scale.
[summary of the invention]
According to foregoing, the purpose of this utility model provide a kind ofly be fit to that use vast Rural areas, production cycle is short, land used is little, energy consumption is low, capital construction and operation investment are little, can effectively remove the pollutent in the sanitary sewage, the domestic sewage processing system of repairing and improving the ecological environment.
For achieving the above object, technical solution adopted in the utility model is as follows:
A kind of distributing domestic sewage in rural areas by using treatment system, comprise the sewage collecting pipe duct, pretreatment system and the artificial swamp processing unit that connect successively, described pretreatment system comprises grating tank, settling pit, equalizing tank and the hydrolysis acidification pool that links to each other successively, and the artificial swamp processing unit comprises high loading horizontal drowned flow artificial wet land, two stage vertical person who lives in exile worker wetland and the one-level horizontal drowned flow artificial wet land that links to each other successively.
Preferably, pretreatment system is carried out and is buried ground or arrange that partly end face Turf Culture and green plants are arranged garden feature, and Sewage treatment systems is coordinated mutually with peripheral original natural landscape, play the effect of beautifying the environment simultaneously with burying.
The described two stage vertical person who lives in exile worker wetland first step adopts descending vertical current, and up vertical current is adopted in the second stage.
Require to select the wetland plant of different physiological properties to plant according to artificial wetland process, preferably, in high loading horizontal drowned flow artificial wet land plantation cyperus alternifolius, vertical current constructed wetland plantation Canna generalis Bailey, at horizontal drowned flow artificial wet land plantation cattail.
Preferably, comprise a pretreatment system, the connect artificial swamp processing unit of one or more parallel connections of this pretreatment system.
Described artificial swamp processing unit also comprises water channel, emergent sterilization pool and water-supply pipeline.
Set out water channel between the artificial swamp processing unit in parallel, each artificial swamp processing unit wetlands at different levels run in blank pipe to going out water channel, and evacuated tube is provided with valve, and in normal working day, the emptying valve is normally closed, go out the water outlet channel of water channel after as purifying domestic sewage; In storm day or maintenance day, exhaust-valve is opened as required, realizes emergent surmounting and mud cleaning, maintenance emptying, and the protection wetland guarantees its normal operation.
Be provided with biologic packing material in the hydrolysis acidification pool, larger molecular organics in the sanitary sewage is degraded to easily by the small organic molecule of microorganism and plant absorbing, utilization, shorten the required hydraulic detention time of follow-up artificial swamp processing unit, reduce the land area of artificial swamp processing unit; The bottom of hydrolysis acidification pool is provided with exhaust-valve, and connecting tube is used for overhauling emergent emptying to going out water channel.
Described pretreatment system also comprises the equipment room.
Aspect sewage disposal mechanism, the utility model adopts anaerobic biological process and natural land to handle the bonded means, by the integrated use of sewage water treatment methods such as physical filtering, absorption, microbiological deterioration, bio-absorbable, domestic sewage in rural areas by using is realized less energy-consumption, low-cost processes.By inorganic particle and the partial organic substances in the macrobead thing in the sewage physics treatment process trap water and suspended particle, the removal sewage; By the anaerobic biological treatment method macrobead organism in the sewage tentatively is decomposed into the small-particle organism, is convenient to the further degraded of microorganism in the subsequent disposal and bio-absorbable, conversion; Collocation by dissimilar artificial wetland process combinations and different constructed wetland plants makes the artificial swamp processing unit form partial anaerobic zone and aerobic zone, is beneficial to realize the nitrification and denitrification effect of microorganism, reduces total nitrogen content in the water; By the absorption of artificial swamp matrix fill and biochemical degradation, the absorption of each quasi-microorganism, reduce the concentration that contains phosphor contaminant in the sewage.
Structurally, the utility model utilizes depression, pond, river shoal to carry out the Sewage treatment systems construction, and the flow by gravity that is beneficial to waste pipe canal system system inserts, and reduces the use of electromechanical equipment, realizes unpowered or the microkinetic operation, reduces the cost, is convenient to management.Cover the coordination of green realization treatment system and surrounding enviroment by pretreatment system with burying; Reduce the obstruction that the macrobead thing causes the artificial swamp processing unit in the sewage by independent layout high loading horizontal drowned flow artificial wet land; Form the active bio bed that is beneficial to microbiological deterioration, plant absorbing by arranged in series without the type artificial swamp; Parallel connection by a plurality of artificial swamp processing units realizes the control of treatment scale, shortens the design and the construction period of domestic sewage processing system simultaneously; Realize the surmounting of system, emptying by laying out water channel between the artificial swamp processing unit in parallel, safeguards system is stable.
Distributing domestic sewage in rural areas by using treatment system described in the utility model has following technique effect:
1, the construction land requirement is low, can make full use of depression, pond and wasteland in the village, and supporting pipe duct relies on the nature physical features to collect sewage, realizes unpowered or the microkinetic operation, saves and invests, and effectively utilizes land resources.
2, treatment effect is good.Anaerobic biological treatment art breading efficient height alleviates the subsequent technique load as pre-treatment; The artificial wetland treatment process that the combination of artificial swamp processing unit is dissimilar is comprehensively brought into play each technological advantage, and organism, nitrogen, phosphorus in can effectively purifying waste water guarantee the water outlet qualified discharge.
3, the parallel connection by processing unit realizes different treatment scales, shortens the system design cycle, is convenient to simultaneously build and management.
4, by preposition high loading horizontal drowned flow artificial wet land, effectively catching causes the pollutent that artificial swamp stops up easily; By cleaning, prolong the work-ing life of treatment system to the high loading horizontal drowned flow artificial wet land.
The utility model design and construction period are short, investment is little, reliable, easy to maintenance, have the vast market popularizing application prospect.
[description of drawings]
Fig. 1 is a kind of structural representation reference drawing of the present utility model.
Among the figure, 1 for the sewage collecting pipe duct, 2 for grating tank, 3 for settling pit, 4 for equalizing tank, 5 for hydrolysis acidification pool, 6 for the high loading horizontal drowned flow artificial wet land, 7 for two stage vertical person who lives in exile worker wetland, 8 for one-level horizontal drowned flow artificial wet land, 9 be water channel, 10 to represent the direction of current for equipment room, arrow for water-supply pipeline, 12 for emergent sterilization pool, 11.
[embodiment]
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment 1
As shown in Figure 1, a kind of distributing domestic sewage in rural areas by using treatment system comprises the sewage collecting pipe duct 1, pretreatment system and the artificial swamp processing unit that link to each other successively; Pretreatment system comprises grating tank 2, settling pit 3, equalizing tank 4, hydrolysis acidification pool 5 and the equipment room 12 that links to each other successively; The artificial swamp processing unit comprises successively the high loading horizontal drowned flow artificial wet land 6, vertical current constructed wetland 7, the horizontal drowned flow artificial wet land 8 that link to each other, goes out water channel 9, emergent sterilization pool 10 and water-supply pipeline 11.Sanitary sewage inserts sewage collecting pipe duct 1 from going out the family pipe, relies on the gravity flow of original physical features and road longitudinal gradient to enter the pretreatment system of arranging with burying.In pretreatment system, sewage is held back domestic refuse through grid, at settling pit 3 gravity settling macrobead things, at equalizing tank 4 of short duration storages and even sewage quality, floating ball lever meter starts submersible sewage pump after reaching certain water level, and sewage promotes and enters hydrolysis acidification pool 5, hangs biologic packing material in the hydrolysis acidification pool 5, the sewage hydraulic detention time is 4~8 hours, and the macrobead organism in the sewage is degraded by microorganisms and is small organic molecule.Subsequently, hydrolysis acidification pool 5 water outlets enter artificial swamp processing unit in parallel by the water distribution pipe flow by gravity.In the artificial swamp processing unit, sewage at first enters high loading horizontal drowned flow artificial wet land 6, most of suspension organism is held back by filler and root system of plant in the sewage, organic concentration reduces, be partly dissolved microbiological deterioration, absorption and the utilization of organic matter, be purified by root system of plant and filling surface; Sewage utilizes the discrepancy in elevation flow by gravity between artificial swamp to enter descending vertical current and up vertical current constructed wetland 7 afterwards, two-stage artificial swamp bottom is communicated with by perforated wall or water distribution pipe duct, sewage is priority process aerobic zone, anaerobic zone, aerobic zone in two stage vertical person who lives in exile worker wetland, when reducing organic pollutant, nitrogen containing polymer pollutent and ammonia nitrogen are converted into nitric nitrogen and nitrogen by nitrated, the denitrification of microorganism in the sewage, reduce ammonia nitrogen and total nitrogen content in the water.At last, sewage enters horizontal drowned flow artificial wet land 8, and sewage further carries out organic removal by plant absorbing and microbiological deterioration, utilization; The phosphor contaminant that contains in the sewage is mainly removed by the absorption of artificial swamp filler, and the part phosphorus containg substances is removed by microbiological deterioration, absorption.The water outlet of artificial swamp processing unit enters emergent sterilization pool 10 through going out water channel 9 flow by gravities, can install sterilization equipment additional when epidemic situation takes place on a large scale the sewage after handling is carried out disinfection, and conveniently simultaneously observes water quality, monitoring sampling.Emergent sterilization pool 10 water outlet flow by gravities enter water bodys such as gush near river, fish pond.
In addition, hydrolysis acidification pool 5 bottoms are provided with exhaust-valve, and connecting tube is used for maintenance and emergent emptying to going out water channel 9; Artificial swamps at different levels bottom is equipped with valve in the artificial swamp processing unit, and connecting tube is convenient to meet an urgent need and overhaul emptying, spoil disposal to going out water channel 9.
Physics by pretreatment system is held back, is precipitated, microbiological deterioration, the root system of plant of neutralization, acidication and artificial swamp processing unit absorb, in filler matrix absorption and the biological bed of artificial swamp the intersection of various biochemistry, physical reaction carry out, acting in conjunction, majority of organic pollutants is by plant and microbiological deterioration, absorption in the sanitary sewage, be converted into living organism, realize final purification and utilization by the regular pruning harvesting of plant, the emptying outward transport harmless treatment of mud; Nitrogen-containing pollutant finally is converted into nitric nitrogen and nitrogen, reduces nutritive substance and flows into water body, avoids body eutrophication; Phosphorus-containing matter is finally absorbed by microorganism by filler matrix absorption, part, changes and focuses on the realization final purification by spoil disposal outward transport harmless treatment, filler; Unwanted bacteria in the sewage, virus are effectively suppressed under dominant microflora competition effect and the effect of root system of plant microbiotic in pretreatment system and artificial swamp processing unit.

Claims (9)

1. distributing domestic sewage in rural areas by using treatment system, comprise the sewage collecting pipe duct (1), pretreatment system and the artificial swamp processing unit that connect successively, it is characterized in that described pretreatment system comprises grating tank (2), settling pit (3), equalizing tank (4) and the hydrolysis acidification pool (5) that links to each other successively, the artificial swamp processing unit comprises high loading horizontal drowned flow artificial wet land (6), two stage vertical person who lives in exile worker wetland (7) and the one-level horizontal drowned flow artificial wet land (8) that links to each other successively.
2. distributing domestic sewage in rural areas by using treatment system as claimed in claim 1 is characterized in that pretreatment system is carried out to bury ground or layout partly with burying.
3. distributing domestic sewage in rural areas by using treatment system as claimed in claim 1 is characterized in that described two stage vertical person who lives in exile worker wetland (7) first step adopts descending vertical current, and up vertical current is adopted in the second stage.
4. as claim 1 or 2 or 3 described distributing domestic sewage in rural areas by using treatment systems, it is characterized in that in high loading horizontal drowned flow artificial wet land (6) plantation cyperus alternifolius, vertical current constructed wetland (7) plantation Canna generalis Bailey, at horizontal drowned flow artificial wet land (8) plantation cattail.
5. distributing domestic sewage in rural areas by using treatment system as claimed in claim 4 is characterized in that the connect artificial swamp processing unit of one or more parallel connections of described pretreatment system.
6. distributing domestic sewage in rural areas by using treatment system as claimed in claim 5 is characterized in that described artificial swamp processing unit also comprises water channel (9), emergent sterilization pool (10) and water-supply pipeline (11).
7. distributing domestic sewage in rural areas by using treatment system as claimed in claim 6, it is characterized in that setting out water channel (9) between the artificial swamp processing unit in parallel, each artificial swamp processing unit wetlands at different levels run in blank pipe to going out water channel (9), and evacuated tube is provided with valve.
8. distributing domestic sewage in rural areas by using treatment system as claimed in claim 6 is characterized in that being provided with biologic packing material in the hydrolysis acidification pool (5), and the bottom is provided with exhaust-valve, and connecting tube is to going out water channel (9).
9. distributing domestic sewage in rural areas by using treatment system as claimed in claim 5 is characterized in that described pretreatment system also comprises equipment room (12).
CN2010206373099U 2010-11-30 2010-11-30 Distributed sewage treatment system for rural life CN201999829U (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102515443A (en) * 2011-12-29 2012-06-27 沃夫冈·阿门特 Integrated sewage purification system
CN102603116A (en) * 2012-03-07 2012-07-25 光大环保科技发展(北京)有限公司 Distribution treatment combination technological method for domestic sewage of small-sized towns
CN102603130A (en) * 2012-04-16 2012-07-25 刘成金 Household garbage and sewage treatment system
CN103159383A (en) * 2013-04-15 2013-06-19 云南省科学技术情报研究院 Rural domestic sewage biological treatment system
CN103613240A (en) * 2013-11-18 2014-03-05 广西鸿生源环保科技有限公司 Multi-stage ecological sewage purification treatment device and method
CN103771661A (en) * 2014-01-16 2014-05-07 河海大学 Landscape energy-saving-type water treatment combined system in residential area
CN104030440A (en) * 2014-06-17 2014-09-10 哈尔滨工业大学 Multi-flow mode intensified composite undercurrent artificial wetland system and application method thereof
CN104291535A (en) * 2014-10-31 2015-01-21 苏州腾纳环保科技有限公司 Domestic sewage purification process
CN104529045A (en) * 2015-01-11 2015-04-22 李宇花 Decentralized sewage treatment method in rural township
CN107309250A (en) * 2017-08-07 2017-11-03 成都理工大学 Residents in rural community decentralized processing devices and methods therefor integrated with sanitary sewage
CN108002653A (en) * 2017-12-18 2018-05-08 重庆大学 A kind of ecotype rainwater setting pot
CN108409068A (en) * 2018-05-31 2018-08-17 广西恒晟水环境治理有限公司 A kind of full intensified ecological governing system of domestic sewage in rural areas distributing

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102515443A (en) * 2011-12-29 2012-06-27 沃夫冈·阿门特 Integrated sewage purification system
CN102603116A (en) * 2012-03-07 2012-07-25 光大环保科技发展(北京)有限公司 Distribution treatment combination technological method for domestic sewage of small-sized towns
CN102603116B (en) * 2012-03-07 2013-07-24 光大环保科技发展(北京)有限公司 Distribution treatment combination technological method for domestic sewage of small-sized towns
CN102603130A (en) * 2012-04-16 2012-07-25 刘成金 Household garbage and sewage treatment system
CN103159383A (en) * 2013-04-15 2013-06-19 云南省科学技术情报研究院 Rural domestic sewage biological treatment system
CN103613240A (en) * 2013-11-18 2014-03-05 广西鸿生源环保科技有限公司 Multi-stage ecological sewage purification treatment device and method
CN103613240B (en) * 2013-11-18 2015-12-02 广西鸿生源环保科技有限公司 The device and method of multi-stage ecological sewage purification treatment
CN103771661A (en) * 2014-01-16 2014-05-07 河海大学 Landscape energy-saving-type water treatment combined system in residential area
CN103771661B (en) * 2014-01-16 2015-04-08 河海大学 Landscape energy-saving-type water treatment combined system in residential area
CN104030440A (en) * 2014-06-17 2014-09-10 哈尔滨工业大学 Multi-flow mode intensified composite undercurrent artificial wetland system and application method thereof
CN104030440B (en) * 2014-06-17 2016-02-17 哈尔滨工业大学 A kind of multithread state strengthening composite under-current artificial wetland system and using method thereof
CN104291535A (en) * 2014-10-31 2015-01-21 苏州腾纳环保科技有限公司 Domestic sewage purification process
CN104529045A (en) * 2015-01-11 2015-04-22 李宇花 Decentralized sewage treatment method in rural township
CN104529045B (en) * 2015-01-11 2015-10-28 北京嘉源汇川水务投资管理有限公司 A kind of villages and towns in rural areas decentralized sewage treatment method
CN107309250A (en) * 2017-08-07 2017-11-03 成都理工大学 Residents in rural community decentralized processing devices and methods therefor integrated with sanitary sewage
CN107309250B (en) * 2017-08-07 2019-04-23 成都理工大学 Residents in rural community decentralized processing devices and methods therefor integrated with sanitary sewage
CN108002653A (en) * 2017-12-18 2018-05-08 重庆大学 A kind of ecotype rainwater setting pot
CN108409068A (en) * 2018-05-31 2018-08-17 广西恒晟水环境治理有限公司 A kind of full intensified ecological governing system of domestic sewage in rural areas distributing

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Address after: 510660 Tianhe District, Guangzhou, Dongpu, No. two road, No. 8, 9, 9-205, 207, room 67, 209

Patentee after: Guangdong Yue Tao Environmental Protection Engineering Co. Ltd.

Address before: 510370 Liwan District, Guangzhou, Fangcun Avenue, building 237-2, room five, building 502, room

Patentee before: Guangdong Senyang Environment Protection Engineering & Facilities Co., Ltd.

Address after: 510660 Tianhe District, Guangzhou, Dongpu, No. two road, No. 8, 9, 9-205, 207, room 67, 209

Patentee after: Guangdong Yue Tao Environmental Protection Engineering Co. Ltd.

Address before: 510370 Liwan District, Guangzhou, Fangcun Avenue, building 237-2, room five, building 502, room

Patentee before: Guangdong Senyang Environment Protection Engineering & Facilities Co., Ltd.

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Granted publication date: 20111005