CN103304102B - Sewage biochemical treatment system and method - Google Patents
Sewage biochemical treatment system and method Download PDFInfo
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- CN103304102B CN103304102B CN201310265351.0A CN201310265351A CN103304102B CN 103304102 B CN103304102 B CN 103304102B CN 201310265351 A CN201310265351 A CN 201310265351A CN 103304102 B CN103304102 B CN 103304102B
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Abstract
The invention discloses sewage biochemical treatment system and method. The sewage biochemical treatment system comprises a rectangular tank body, wherein the tank body is internally sequentially provided with a water distribution wall, a first filler wall, a second filler wall, a third filler wall and a fourth filler wall which are longitudinally arranged from left to right; the tank body is internally separated into different reaction areas which are mutually communicated; both sides of the water distribution wall define a water distribution area and a hydrolytic acidification area respectively with the left inner wall of the tank body and the first filler wall; both sides of the second filler wall define a first reaction area and an aerobic area respectively with the first filler wall and the third filler wall; both sides of the fourth filler wall define a second reaction area and a detection area respectively with the third filler wall and the right inside of the tank body; and the hydrolytic acidification area, the first reaction area, the aerobic area and the second reaction area are internally provided with aeration pipes. The sewage biochemical treatment system and method disclosed by the invention can be used for effectively removing the COD (Chemical Oxygen Demand) and ammonia nitrogen contaminants which are contained in sewage after the sewage is treated through various reaction areas; and the generated sludge does not need to be discharged; therefore the sewage biochemical treatment system and method are very suitable for treating the sewage with small water quantity and certain biochemical property.
Description
Technical field
The present invention relates to a kind of Sewage treatment systems and method, be specifically related to a kind of sewage biochemical treatment system and method, belong to environment-protective water process field.
Background technology
The resident that village, town sewage refer to village, Liang Lei agglomeration, town in daily life and for its daily life provides the waste water producing in the activity of service, does not comprise the waste water that industrial production and rural production produce.Chinese villages and small towns sewage is wide, amount is large, and improvement demand is urgent." the national villages and small towns waste water control planning (2011-2015) " of formulating according to the Ministry of Construction, by the end of the year ends 2007, in the administrative village ratio of state-owned at village level concentrated sewage treatment facility be only 2.6%, be mainly distributed in the areas that are fairly developed economically such as Beijing, Shanghai, Zhejiang, Jiangsu, Tianjin, Fujian, Shandong, Guangdong.By the end of 2010,136.2 hundred million tons of the total generations of national villages and small towns sewage, accounted for 22.9% of national sanitary sewage total emission volumn.The impact of villages and small towns sewage pollution load watershed water environment pollution will be increasing.Therefore,, on State-level, in order to improve on the whole water environment in China quality, Science in Future in China basin is polluted the center of gravity of controlling and also must progressively be shifted to villages and small towns waste water control.The problem that China's villages and small towns sewage disposal mainly exists at present has:
(1) processing rate is low: the ratio of national sewage disposal level: city accounts for 78%, organic town accounts for 15%, village accounts for 6%.Organic town is wherein the area just outside a city gate town at county town greatly, if add up real organic town, sewage disposal level has only accounted for less than 10%.
(2) vacancy rate is high: the wastewater treatment rate in the provinces such as current China Shanghai, Jiangsu, Zhejiang, Guangdong, Shandong is higher, but the normal operation rate of the sewage treatment facility that these five provinces are built up is not high, major cause is that the property right that most of processing arranges returns small towns or village to own with operation power, due to the professional and technical personnel's of basic unit shortage, cause a large amount for the treatment of facilities to be difficult to normal operation.
Therefore,, for the problems referred to above, be badly in need of a kind of little, running maintenance, villages and small towns Sewage treatment systems that treatment effect is good of investing of exploitation.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind for the treatment of effect high, invest low, the simple sewage biochemical treatment system of running maintenance and method.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of sewage biochemical treatment system, comprise a rectangle pond body, in the body of described pond, be furnished with successively from left to right the cloth waterwall of longitudinal setting, the first filler wall, the second filler wall, the 3rd filler wall and the 4th filler wall, and the differential responses district being interconnected will be separated in the body of pond, wherein, the both sides of described cloth waterwall become cloth pool and acidication district with inner left wall and the first filler circummure of pond body respectively, the both sides of described the second filler wall become the first reaction zone and aerobic area with the first filler wall with the 3rd filler circummure respectively, the both sides of described the 4th filler wall surround second reaction zone and detection zone with the inside, right side of the 3rd filler wall and pond body respectively, in described acidication district, the first reaction zone, aerobic area and second reaction zone, be also provided with aeration tube.
Preferably: in described the first reaction zone and second reaction zone, be also provided with the filler wall that is not less than one side, and be provided with aeration tube between adjacent two sides filler wall.
Preferably: described the first filler wall, the second filler wall, the 3rd filler wall, the 4th filler wall and the first reaction zone are identical with the structure of the filler wall in second reaction zone, are laminated by polylith multiporous biological filler; And the spacing between adjacent two blocks of multiporous biological fillers is 0.3-0.5cm.
Preferably: the aeration tube in described acidication district and aerobic area is arranged at the bottom in acidication district and aerobic area, the aeration tube in described the first reaction zone and second reaction zone is provided with two-layer from top to bottom.
Preferably: the aeration ratio in described acidication district is: 0.2-0.5:1, the aeration of described the first reaction zone is than being 3-8:1, and the aeration of described aerobic area is than being 0.2-0.5:1, and the aeration of described second reaction zone is than being 2-6:1.
Preferably: on described cloth waterwall, be evenly provided with multiple water distributing pores.
Preferably: the pond of described pond body is 3.5-4.5 rice deeply.
A kind of waste water biochemical treatment method, comprises following treatment step:
1) sewage, in cloth pool enters into acidication district, is tentatively degraded to the COD in sewage, improves the biodegradability of sewage;
2) water outlet in acidication district enters into the first reaction zone, and in the first reaction zone further COD and ammonia nitrogen pollutant in degradation of sewage, and the mud in sewage is carried out to nitrated degraded;
3), after the biodegradability that the water outlet of the first reaction zone further improves sewage through aerobic area, enter into second reaction zone, and in second reaction zone further except COD and ammonia nitrogen pollutant in decontaminated water, and to the mud in sewage carry out further nitrated after;
4) water outlet of second reaction zone enters into detection zone, after sampling detection is qualified, carries out qualified discharge.
Preferably: the residence time of sewage in acidication district is 3-9 hour, the residence time of sewage in the first reaction zone is 6-12 hour.
Preferably: the residence time of sewage in aerobic area is 2-6 hour, the residence time of sewage in second reaction zone is 4-10 hour.
Beneficial effect of the present invention is: in (1) first reaction zone, adopt unique filler filling mode and aeration mode, realized aerobic, anoxic, anaerobism exists, and not only can remove COD and ammonia nitrogen, can also play the nitrated effect of mud simultaneously; (2) do not need outer blowdown mud, realized mud internal expansion and nitrated between running balance, thoroughly solved excess sludge process problem; (3) improve the biodegradability of waste water, also can realize qualified discharge for the waste water that biochemical is poor; (4) brick type multiporous biological filler long service life, disposable filling, without supplementing and changing, has reduced to safeguard running cost greatly.
Brief description of the drawings
Fig. 1 shows the structural representation for the treatment of system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, treatment system of the present invention comprises that a pond is the rectangle pond body A of 3.5-4.5 rice deeply, in described pond body A, be furnished with successively from left to right the cloth waterwall 11 of longitudinal setting, the first filler wall 81, the second filler wall 82, the 3rd filler wall 83 and the 4th filler wall 84, and the differential responses district being interconnected will be separated in the body A of pond, wherein, the both sides of described cloth waterwall 11 surround cloth pool 1 and acidication district 2 with inner left wall and the first filler wall 81 of pond body A respectively, the both sides of described the second filler wall 82 surround the first reaction zone 3 and aerobic area 4 with the first filler wall 81 and the 3rd filler wall 83 respectively, the both sides of described the 4th filler wall 84 surround second reaction zone 5 and detection zone 6 with the inside, right side of the 3rd filler wall 83 and pond body A respectively.Further, as a preferred implementation method, according to the water quality situation of the sewage of required processing, the interior filler wall that is not less than one side that is all also provided with in described the first reaction zone 3 and second reaction zone 5, and be provided with aeration tube between adjacent two sides filler wall, in the present invention, described the first filler wall 81, the second filler wall 82, the 3rd filler wall 83, the 4th filler wall 84 and the first reaction zone 3 are identical with the structure of the filler wall in second reaction zone 5, be laminated by polylith multiporous biological filler, there is the shape of similar metope, as one preferred embodiment, in the present embodiment, it is the brick type multiporous biological filler of brick class that described multiporous biological filler adopts profile, and the spacing between two blocks of adjacent fillers is 0.3-0.5cm.
In described acidication district 2, the first reaction zone 3, aerobic area 4 and second reaction zone 5, be equipped with aeration tube 7, wherein, aeration tube 7 in described acidication district 2 and aerobic area 4 is arranged at the bottom in acidication district 2 and aerobic area 4, and the aeration in described acidication district 2 is than being 0.2-0.5:1, and the aeration in described aerobic area 4 is than being 0.2-0.5:1.Aeration tube 7 in described the first reaction zone 3 and second reaction zone 5 is divided into two-layer, be arranged in up and down in the first reaction zone 3 and second reaction zone 5, and aeration in described the first reaction zone 3 is than being 3-8:1, and the aeration in described second reaction zone 5 is than being 2-6:1.
Adopt above-mentioned biochemical treatment system to carry out sewage disposal, comprise following treatment step:
1) sewage enters cloth pool 1, and by equally distributed multiple water supply on cloth waterwall 11 through water distributing pore enter into acidication district 2;
2) sewage, in the interior preliminary degraded COD in acidication district 2, further improves the biodegradability of sewage, and in acidication district 2, interior stop entered into the first reaction zone 3 through the first filler wall 81 after 3-9 hour to sewage;
4) due to structure and the aeration mode of the first reaction zone 3 interior uniquenesses, therefore exist aerobic in the first reaction zone 3 simultaneously, three kinds of environment of anoxic and anaerobism, the microorganism species yarding up in sewage is before aeration, under the environment of anoxic, realize the nitrated of ammonia nitrogen, denitrification process, and after aeration, microorganism species in sewage carries out bio-contact oxidation under sufficient Oxygen Condition, decompose the organic pollutant in sewage, make can also remove the ammonia nitrogen pollutant in sewage in the COD of sewage in the first interior further degradation of sewage in reaction zone 3, and can also play to the mud in sewage the effect of nitrated degraded, sewage enters into aerobic area 4 through the second filler wall 82 in the first interior stop in reaction zone 3 after 6-12 hour,
5) sewage in aerobic area 4 interior further its biodegradability that promoted, sewage interior stop after 2-6 hour in aerobic area 4, enters into second reaction zone 5 through the 3rd filler wall 83;
6) sewage second reaction zone 5 interior further except the COD in decontaminated water, ammonia nitrogen pollutant and mud nitrated in, can also tackle the suspended substance in sewage, in second reaction zone 5, interior stop, after 4-10 hour, enters into detection zone 6 through the 4th filler wall 84 to sewage;
7) sewage, in detection zone 6 after sampling detection is up to standard, discharges.
Embodiment 1
Adopt the sanitary sewage of above-mentioned treatment system and method Dui Mou community to process, designing treatment total Water is 1000t/d, and design sewage quality situation is in table 1:
Table 1 designs sewage influent quality (unit: mg/l; PH value zero dimension)
| Pollutent index | COD Cr | BOD 5 | NH 3-N | SS | pH |
| Pollutant levels | 450 | 250 | 40 | 200 | 6～8 |
The parameter of the each technique unit for the treatment of system of the present invention arranges as shown in table 2:
The each technique unit parameter of table 2 treatment system arranges
Sewage is as shown in table 3 through above-mentioned treatment system and method effect after treatment:
Table 3 pollutant removal
As known from Table 3, sewage is after treatment system of the present invention and method processing, the clearance of the each pollutent in sewage can reach more than 80%, effluent quality has after treatment reached " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level B standard, and the sewage load of the annual Dui Gai of the device community in the present embodiment can reach 36.5 ten thousand tons, ton water treatment working cost is about 0.32 yuan, the working cost of other treatment system of selecting far below this sewage.
The present invention is by preferred embodiment having carried out detailed explanation.But, by studying carefully above, the variation to each embodiment and to increase be also that one of ordinary skill in the art institute is apparent.Applicant be intended that all these variations and increase has dropped in the protection domain of the claims in the present invention.Similar numbering refers to similar element in the whole text.For clarity, may there is in the accompanying drawings the situation that some line, layer, element, parts or feature are amplified.
Term used herein is only for to be illustrated specific embodiment, and it is not intended to invention to limit.Unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) are all identical with one of ordinary skill in the art's of the present invention understanding.Known function or structure are for briefly and clearly consider or repeat no more.
Claims (6)
1. a sewage biochemical treatment system, it is characterized in that: comprise a rectangle pond body, in the body of described pond, be furnished with successively from left to right the cloth waterwall of longitudinal setting, the first filler wall, the second filler wall, the 3rd filler wall and the 4th filler wall, and the differential responses district being interconnected will be separated in the body of pond, wherein, the both sides of described cloth waterwall become cloth pool and acidication district with inner left wall and the first filler circummure of pond body respectively, the both sides of described the second filler wall become the first reaction zone and aerobic area with the first filler wall with the 3rd filler circummure respectively, the both sides of described the 4th filler wall surround second reaction zone and detection zone with the inside, right side of the 3rd filler wall and pond body respectively, in described acidication district, the first reaction zone, aerobic area and second reaction zone, be also provided with aeration tube, in described the first reaction zone and second reaction zone, be also provided with the filler wall that is not less than one side, and be provided with aeration tube between adjacent two sides filler wall.
2. biochemical treatment system according to claim 1, it is characterized in that: described the first filler wall, the second filler wall, the 3rd filler wall, the 4th filler wall and the first reaction zone are identical with the structure of the filler wall in second reaction zone, are laminated by polylith multiporous biological filler; And the spacing between adjacent two blocks of multiporous biological fillers is 0.3-0.5cm.
3. biochemical treatment system according to claim 1, it is characterized in that: the aeration tube in described acidication district and aerobic area is arranged at the bottom in acidication district and aerobic area, the aeration tube in described the first reaction zone and second reaction zone is provided with two-layer from top to bottom.
4. according to the biochemical treatment system described in claim 1-3 any one, it is characterized in that: the aeration ratio in described acidication district is: 0.2-0.5:1, the aeration of described the first reaction zone is than being 3-8:1, the aeration of described aerobic area is than being 0.2-0.5:1, and the aeration of described second reaction zone is than being 2-6:1.
5. biochemical treatment system according to claim 1, is characterized in that: on described cloth waterwall, be evenly provided with multiple water distributing pores.
6. according to the biochemical treatment system described in claim 1 or 2 or 3 or 5, it is characterized in that: the pond of described pond body is 3.5-4.5 rice deeply.
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| CN201310265351.0A CN103304102B (en) | 2013-06-28 | 2013-06-28 | Sewage biochemical treatment system and method |
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| CN201310265351.0A CN103304102B (en) | 2013-06-28 | 2013-06-28 | Sewage biochemical treatment system and method |
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| CN203440154U (en) * | 2013-06-28 | 2014-02-19 | 北京联众华禹环保科技有限公司 | Biochemical wastewater treatment system |
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| CN101575146A (en) * | 2009-05-27 | 2009-11-11 | 华东师范大学 | Self-anchored immersed ecological filter bed and method thereof for purifying micro-polluted surface water in situ |
| WO2012141976A1 (en) * | 2011-04-14 | 2012-10-18 | Global Water Group, Incorporated | System and method for wastewater treatment |
| CN202156979U (en) * | 2011-07-11 | 2012-03-07 | 中国水电顾问集团中南勘测设计研究院 | Sewage and waste water treatment device for adaptable film-sludge symbiosis anoxic/oxic (A/O) system |
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Inventor after: Yao Zuoguo Inventor after: Luo Pingkai Inventor after: Liu Xiaojian Inventor after: Li Xuelei Inventor after: Yu Yongyong Inventor before: Liu Xiaojian Inventor before: Zhou Jiawang Inventor before: Yan Zengshuang Inventor before: Yao Zuoguo Inventor before: Li Daxiang Inventor before: Zhang Chunju |
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Free format text: CORRECT: INVENTOR; FROM: LIU XIAOJIAN ZHOU JIAWANG YAN ZENGSHUANG YAO ZUOGUO LI DAXIANG ZHANG CHUNJU TO: YAO ZUOGUO LUO PINGKAI LIU XIAOJIAN LI XUELEI YU YONGYONG |
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Denomination of invention: Sewage biochemical treatment system and method Effective date of registration: 20150911 Granted publication date: 20140903 Pledgee: Beijing ustron Tongsheng financing Company limited by guarantee Pledgor: Beijing Lianzhong Huayu Environmental Protection Technology Co., Ltd. Registration number: 2015990000771 |
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