CN202744423U - Integrated bio-contact oxidation device for treating rural domestic sewage - Google Patents

Integrated bio-contact oxidation device for treating rural domestic sewage Download PDF

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Publication number
CN202744423U
CN202744423U CN 201220364492 CN201220364492U CN202744423U CN 202744423 U CN202744423 U CN 202744423U CN 201220364492 CN201220364492 CN 201220364492 CN 201220364492 U CN201220364492 U CN 201220364492U CN 202744423 U CN202744423 U CN 202744423U
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reactor
separating plate
contact oxidation
reaction area
district
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CN 201220364492
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Chinese (zh)
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黄靖宇
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Jiangsu state Su Testing Co., Ltd.
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黄靖宇
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Abstract

The utility model discloses an integrated bio-contact oxidation device for treating rural domestic sewage and belongs to the technical field of environment engineering. An anaerobic reaction area, an anoxic reaction area, an aerobic reaction area and a settling area are arranged inside a reactor. A first separating plate is arranged between the anoxic reaction area and the anaerobic reaction area, a second separating plate is arranged between the aerobic reaction area and the settling area, the upper end of the first separating plate is higher than the second separating plate, the lower end of the first separating plate is suspended, and the lower end of the second separating plate is connected with the ground in sealing mode. The lower portion between the first separating plate and the second separating plate is the anaerobic reaction area, the upper portion between the first separating plate and the second separating plate is the aerobic reaction area, the anoxic reaction area of the reactor is provided with a water inlet, a water outlet is arranged in the middle of the settling area of the reactor, and different function areas in the reactor are all filled with padding. According to the integrated bio-contact oxidation device, a biological contact oxidation process has characteristics of an activated sludge process, effluent quality is good and stable, and the biological contact oxidation process is high in volumetric loading and short in treating time and does not have sludge bulking problems.

Description

A kind of integrated bio-contact oxidation device of processing domestic sewage in rural areas by using
Technical field
The utility model belongs to field of environment engineering technology, relates in particular to a kind of integrated bio-contact oxidation device of processing domestic sewage in rural areas by using.
Background technology
China has 900,000,000 populations to live in rural area and market town, and along with China's expanding economy, town development will obtain developing very soon.It is predicted, before and after 2010, China's level of urbanization will be near 45%, will be above 50% before and after the year two thousand twenty, will reach about 70% before and after the year two thousand fifty, and tentatively finish China's urbanization process.Obviously, along with the quickening of China's urbanization, the sewage treatment facility construction in samll cities and towns and rural area will present the situation of rapid growth, yet technical specifications, standard, rules and policy etc. that the relevant Small Town Wastewater of China is processed are space state at present basically.The treatment rate of domestic sewage of China only has 25.82% at present, the wastewater treatment rate of samll cities and towns is less than 10%, the wastewater treatment rate in rural area is lower, great majority do not have through processing directly discharging, and therefore the dispersed technology of waste water control take domestic sewage of villages and small towns as the master of the economical and efficient of the suitable China's national situation of development is our institute's urgent problem.
Statistics are arranged, in the rural area of District of Shanghai, deliver to sewage work and process if some receive Guan Ze near the rural area in cities and towns, up to standard after again discharging; Can't receive pipe, adopt discharging after simple the processing, such as many employings three-grid septic tank, the water after septic tank is processed directly enters the river course, so that there is the hidden danger of eutrophication in water body.Even rural rivers is generally polluted, also underground water has been arrived in serious threat, even the shallow ground water that has suffered pollution, can not take as tap water.Because the sewage outlet is unresolved, also can bring transmissible disease etc. to cause the disease of public health security hidden danger.Therefore, how the sewage in Rural Shanghai village is implemented effectively to process, experimental study goes out efficient, lower-cost sanitary sewage on the spot treatment facility is very necessary and important.
Summary of the invention
Be to solve the deficiencies in the prior art, the purpose of this utility model is the integrated bio-contact oxidation device that a kind of less investment, easy care is provided, can effectively processes domestic sewage in rural areas by using.
For achieving the above object, the utility model is to realize by following technical scheme: a kind of integrated bio-contact oxidation device of processing domestic sewage in rural areas by using arranges anaerobic reaction district, hypoxia response district, aerobic reactor zone and settling region in reactor; Between hypoxia response district and the anaerobic reaction district the first dividing plate is set, between aerobic reactor zone and the settling region second partition is set, the first dividing plate upper end is higher than second partition, and sky is chosen in the first dividing plate lower end, and second partition lower end and ground are tightly connected; The bottom is the anaerobic reaction district between the first dividing plate and the second partition, and top is aerobic reactor zone, and the hypoxia response district of reactor is provided with water-in, and the middle part, settling region of reactor is provided with water outlet, and filler all is equipped with in the difference in functionality district in the reactor; One cover air lift system is set, the external air compressor machine of stripping tube of described air lift system between the first dividing plate and second partition.
Described settling region is designed to the V-type groove.
To pass through the rational technique measure with anaerobism according to traditional contact oxidation technology equipment, anoxic, aerobic reactor zone is integrated in the same reactor with the precipitation function, this technology effectively combines A2/O technique with catalytic oxidation, in contact oxidation technology, realize the different distributions of dissolved oxygen, for various microorganism provides suitable living environment separately, more be conducive to microbial growth and breeding on the microbial film, strengthened the biological treatment function, and intensive degree is high, is that a kind of collection pollutent is held back, organic matter degradation, anoxic, anaerobism, the functions such as aerobic and precipitation are in the effective integrated bio-reactor of one.
Filler all is equipped with in the difference in functionality district in the reactor, and mud is and adheres to shape is microbial film, and anti-shock loading is good.One cover air lift system also is set in the reactor, the oxygen supply of reactor and the backflow of nitrification liquid have been realized simultaneously, by reactor center stripping reflux pipe, nitrification liquid is promoted, a part is back to the oxygen-starved area, and for denitrification provides nitrification liquid, another part forms circulation in reaction zone, be rich in the top-down filling surface that flows through the central zone setting of sewage of dissolved oxygen, utilize the microorganism that is grown in filling surface to realize synchronous nitration denitrification denitrogenation function; Dissolved oxygen in the water also is attached to the microbial consumption of filling surface simultaneously, has formed aerobic, anaerobic zone in reactor from top to bottom; Aerobic, the anaerobion of filling surface fully contact in this moment sewage and the different zones, have realized the synchronous degraded removal of every pollutents such as carbon, nitrogen, phosphorus; At exhalant region settling region and sludge reflux seam are set in addition, have realized the effectively catching of " S ", for effluent quality provides effective guarantee.
The beneficial effects of the utility model are:
1) biological contact oxidation process has the characteristics of activated sludge process concurrently, and its utilizes the organism in the microbial film planar water anchor on the filler, and oxygenolysis in addition, makes sewage purification.Because filler is immersed in the water, the microbial film that anchors on the filler is three-dimensional arrangement, an end set, one end is floating, the above grows fabulous vertical thread fungus micelle and a large amount of thread fungus, forms intensive biotic population, has increased the contact surface area of sewage and microorganism.Because microbial film is immersed in the water, also must as activated sludge process, aerating apparatus be set, constantly oxygen supply in the water.
2) effluent quality is good and stable.Contact oxidation technology has preferably effluent quality, and when the influent concentration short-term was suddenlyd change, effluent quality was influenced very little; Under the impact of poisonous substance and pH, microbial film is influenced little, and recovers fast.
3) the biological contact oxidation process volumetric loading is high, and the treatment time is short.Generally speaking, take municipal effluent as example, the volumetric loading of activated sludge process is 1kgBOD 5/ (m 3Filler day), needing aeration time is 4~8 hours: the volumetric loading of biological filter is 1~3BOD 5/ (m 3Filler day), one cubic metre of filler can be processed 10 cubic metres of water every day, and the corresponding residence time is 2.4 hours, and the volumetric loading of contact oxidation method is 3~5BOD 5/ (m 3Filler day), only need contact 0.5~1.5 hour.Owing to having shortened the treatment time, onesize equipment volume, processing power have improved 2~8 times, make the biologic process for treating sewage trend efficiently and save land used.
4) without the sludge bulking problem.Sludge bulking generally is activated sludge process difficult control of when operation, and affects again the problem for the treatment of effect.Biological contact oxidation process exists without this problem.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Shown in the figure: 1, water-in, 2, filler, 3, the hypoxia response district, 4, the anaerobic reaction district, 5, stripping tube, 6, water outlet, 7, aerobic reactor zone, 8, the settling region, 9, reactor, the 10, first dividing plate, 11, second partition.
Embodiment
Further the utility model is illustrated below in conjunction with the drawings and specific embodiments;
Embodiment: as shown in Figure 1, a kind of integrated bio-contact oxidation device of processing domestic sewage in rural areas by using arranges anaerobic reaction district (4), hypoxia response district (3), aerobic reactor zone (7) and settling region (8) in reactor (9); Between hypoxia response district (3) and anaerobic reaction district (4) the first dividing plate (10) is set, between aerobic reactor zone (7) and settling region (8) second partition (11) is set, the first dividing plate (10) upper end is higher than second partition (11) upper end, sky is chosen in the first dividing plate (10) lower end, and second partition (11) lower end and ground are tightly connected; The bottom is anaerobic reaction district (4) between the first dividing plate (10) and the second partition (11), top is aerobic reactor zone (7), the top, hypoxia response district (3) of reactor (9) is provided with water-in (1), middle part, the settling region of reactor (8) is provided with water outlet (6), and filler (2) all is equipped with in the interior difference in functionality of reactor (9) district; One cover air lift system is set, the external air compressor machine of stripping tube (5) of described air lift system between the first dividing plate (10) and second partition (11).Operational process: take certain rural area dispersed wastewater as flow condition, flooding velocity is 20t/d, after sewage is collected by pipe network, behind fine fack, enter equalizing tank, through the sewage pump input reactor, sewage enters the anaerobic zone of reactor bottom through the oxygen-starved area again, is promoted to aerobic zone by the stripping tube that connects outside air compressor machine again, then a part of nitrification liquid refluxes and enters the oxygen-starved area, sewage is constantly circulated in reactor contact with filler.For the enhanced reactor denitrification effect, reactor is divided into different functional zone, the reactor useful volume is 8m approximately 3, hydraulic detention time is by being 8h, aerobic zone: oxygen-starved area: anaerobic zone: the settling region was by 5: 3: 1: 0.5 distributes, and the difference in functionality district utilizes dividing plate to separate.The control of dissolved oxygen: be 4.0~5.0mg/L during aerobic zone dissolved oxygen aeration and be 2.0~2.5mg/L when stopping aeration, the oxygen-starved area dissolved oxygen is controlled at 0.5~1.0mg/L, and the anaerobic zone dissolved oxygen is less than 0.5mg/L.The settling region adopts the design of V-type groove, and sedimentation time is 30min.After the reactor steady running, the organic loading of will intaking is controlled at 0.47~0.79kgBOD 5/ m 3D, when hydraulic detention time maintained 8~10h, reactor was to COD, NH 4 +The clearance of-N, TP and SS reaches respectively 70.01%, 58.58%, 73.44% and 51.58%, water outlet COD, NH 4 +-N, TP and SS can reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) secondary standard, and processing cost is 0.47 yuan/m approximately 3
It should be noted that at last: obviously, above-described embodiment only is for the utility model example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description, the apparent variation of being extended out thus or change still are among the protection domain of the present utility model.

Claims (2)

1. integrated bio-contact oxidation device of processing domestic sewage in rural areas by using, feature is that anaerobic reaction district, hypoxia response district, aerobic reactor zone and settling region are set in reactor; Between hypoxia response district and the anaerobic reaction district the first dividing plate is set, between aerobic reactor zone and the settling region second partition is set, the first dividing plate upper end is higher than second partition, and sky is chosen in the first dividing plate lower end, and second partition lower end and ground are tightly connected; The bottom is the anaerobic reaction district between the first dividing plate and the second partition, and top is aerobic reactor zone, and the hypoxia response district of reactor is provided with water-in, and the middle part, settling region of reactor is provided with water outlet, and filler all is equipped with in the difference in functionality district in the reactor; One cover air lift system is set, the external air compressor machine of stripping tube of described air lift system between the first dividing plate and second partition.
2. a kind of integrated bio-contact oxidation device of processing domestic sewage in rural areas by using according to claim 1 is characterized in that described settling region is designed to the V-type groove.
CN 201220364492 2012-07-26 2012-07-26 Integrated bio-contact oxidation device for treating rural domestic sewage Expired - Fee Related CN202744423U (en)

Priority Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104045154A (en) * 2013-03-12 2014-09-17 江苏瑞盛水处理有限公司 Wastewater biological treatment system based on bio-contact oxidation process
CN104529050A (en) * 2014-11-25 2015-04-22 浙江浙牌科技有限公司 Efficient rural sewage purification apparatus
CN105884066A (en) * 2016-05-26 2016-08-24 江苏兴隆防腐设备有限公司 Low-energy-consumption sewage treatment equipment
CN109279737A (en) * 2017-07-19 2019-01-29 中国水利水电科学研究院 A kind of sewage disposal system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104045154A (en) * 2013-03-12 2014-09-17 江苏瑞盛水处理有限公司 Wastewater biological treatment system based on bio-contact oxidation process
CN104045154B (en) * 2013-03-12 2016-07-20 江苏瑞盛水处理有限公司 Sewage biological treatment system based on Biological Contact Oxidation Process
CN104529050A (en) * 2014-11-25 2015-04-22 浙江浙牌科技有限公司 Efficient rural sewage purification apparatus
CN104529050B (en) * 2014-11-25 2016-11-30 浙江浙牌科技有限公司 Efficiently country sewage purifier
CN105884066A (en) * 2016-05-26 2016-08-24 江苏兴隆防腐设备有限公司 Low-energy-consumption sewage treatment equipment
CN109279737A (en) * 2017-07-19 2019-01-29 中国水利水电科学研究院 A kind of sewage disposal system

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Patentee after: HUANG JINGYU

Address before: School of environment Hohai University No. 1 Xikang Road 210098 Jiangsu city of Nanjing Province

Patentee before: Huang Jingyu

Effective date of registration: 20140401

Address after: 215000, Suzhou, Jiangsu province Luzhi Town, Wuzhong District City Road No. 16 (Science and Technology Park)

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Address after: The high road in Gaochun District of Nanjing City, Jiangsu Province, No. 89 211300

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Address before: 215000, Suzhou, Jiangsu province Luzhi Town, Wuzhong District City Road No. 16 (Science and Technology Park)

Patentee before: HUANG JINGYU

Effective date of registration: 20150416

Address after: The high road in Gaochun District of Nanjing City, Jiangsu Province, No. 89 211300

Patentee after: Jiangsu state Su Testing Co., Ltd.

Address before: 215000, Suzhou, Jiangsu province Luzhi Town, Wuzhong District City Road No. 16 (Science and Technology Park)

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Granted publication date: 20130220

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