CN1011585B - Method and equipment for treating low concentration fecal sewage from city - Google Patents
Method and equipment for treating low concentration fecal sewage from cityInfo
- Publication number
- CN1011585B CN1011585B CN 85102278 CN85102278A CN1011585B CN 1011585 B CN1011585 B CN 1011585B CN 85102278 CN85102278 CN 85102278 CN 85102278 A CN85102278 A CN 85102278A CN 1011585 B CN1011585 B CN 1011585B
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- China
- Prior art keywords
- water
- city
- appliance
- anaerobic digester
- anaerobic
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- Fertilizers (AREA)
Abstract
The present invention relates to a method and an appliance for treating the low-concentration fecal water of a city, which belongs to the treatment of industrial waste water, and the fecal water of the city is treated by an anaerobic digestion method, an anaerobic filtration method and an aerobic aeration method. The critical appliances of the present invention are two stages of multi-layer anaerobic digestion pools, a separating wall is arranged in each pool, the separating wall is provided with an entrance vane and a reversible pipe, and a water pressure tank is communicated between the two pools by a water pipe. The appliance for treating the low-concentration fecal water of a city can automatically stir the fecal water by marsh gas pressure and water pressure to achieve the multi-layer fermentation of the whole pool, and treatment effect is considerably enhanced. The treated fecal water can be used as the non-domestic water of city buildings, the whole appliance of the present invention is underground arranged and does not occupy ground surface area, energy source can be recovered, and the appliance for treating the low-concentration fecal water of a city is the ideal matching appliance of the city tall buildings.
Description
The invention belongs to the improvement of sanitary wastewater treatment facility.
Before the present invention, the known technology that adopts multistage anaerobic digestion process to handle the lower concentration liquid dung is arranged, as: 1. the spy opens clear 57-38990, IPC(4) C02F3/30; 2. the spy opens clear 58-51993, IPC(4) C02F3/28,3/30; 3. the spy opens clear 56-108594, IPC(4) C02F3/28,11/04, B09B3/00; But in all similar known technologies, its treatment facility can not realize that all the automatic guide of liquid dung is stirred and the automatic broken scum silica frost that disappears, and has influenced the degraded digestion of organic solid substance, and the sediment scum silica frost is many, and the cycle of drawing clearly is short, and treatment effect is undesirable.
Contriver's purpose and task are exactly in order to overcome above-mentioned shortcoming, invent the multistage anaerobic digestion of a kind of usefulness and handle the new installation of lower concentration liquid dung, make it can realize liquid dung automatic guide stirring, the automatic broken scum silica frost that disappears, thereby increase the hygiene effect of handling liquid dung and improve gas production rate, be convenient to again simultaneously make.
Fig. 1 is one of embodiments of the invention, with it structure of the present invention and principle can be described.Be combined into the secondary anaerobic digester by first anaerobic digester (1) and second anaerobic digester (2), wherein the volume of second anaerobic digester (2) can be slightly smaller than the volume of first anaerobic digester (1).Partition wall (3) all is housed in each anaerobic digester, each anaerobic digester is separated into some lattice, adorn three road partition walls (3) generally speaking in first anaerobic digester (1), dress twice partition walls (3) are just passable in second anaerobic digester.The characteristics of making are to be equipped with on the per pass partition wall (3) 2～6 suitable pipes (5) that become intersection oblique cutting shape, and between first anaerobic digester (1) and second anaerobic digester (2), a main water pressure house (6) is housed, has concrete prefabricated water pipe (7) that last lattice of first anaerobic digester (1) and first lattice of second anaerobic digester (2) are connected with the lower curtate of main water pressure house (6) respectively.Be the enhancement process effect, can also make a secondary water pressure house (8), also use cement ready-formed water pipe (7) that last lattice of second anaerobic digester (2) are connected with the bottom of secondary water pressure house (8) in the back of second anaerobic digester (2).
The effect of main water pressure house (6) is: the liquid dung in secondary anaerobic digester (1), (2) constantly produces biogas when fermentation, air pressure increases gradually, liquid dung is pressed into main water pressure house (6) and the interior liquid dung formation waterhead of relative anaerobic digester---be hydraulic pressure, this hydraulic pressure is pressed the liquid dung of acting in conjunction in (1), (2) with the biogas in (1), (2), relative equilibrium, when emitting the biogas use, biogas is pressed and is reduced, and the liquid dung water level rises under the hydraulic pressure effect; When stopping using biogas, owing to there is biogas constantly to produce, biogas is pressed and is increased, and again liquid dung is pressed into main water pressure house (6), the liquid dung water level descends, and has so just formed the automatic rise and fall of (1), (2) interior liquid dung water level.
The effect and the main water pressure house (6) of secondary water pressure house (8) are identical.
The effect along pipe (5) is: when the liquid dung water level in (1), (2) rises or descend, make liquid dung form the guiding stirring along flowing into another lattice from lattice from top to bottom or from the bottom up along pipe (5).In this process, fall and to utilize the rising of liquid dung water level or decline on the one hand and to break up scum silica frost along pipe (5), on the other hand then the bacterial classification inoculation of the enrichment of anaerobic digester bottom to the scum silica frost on top, make be degraded liquefaction or slowly sink of scum silica frost; Simultaneously, a part of sediment edge is fallen draw Hui Chi top again, thereby form the fermentation of at many levels full pond along pipe (5).
By main water pressure house (6) with fall along the effect of pipe (5) (or main water pressure house (6) and secondary water pressure house (8) common with fall) along the effect of managing (5), we have known the ultimate principle of this invention.On the one hand because partition wall (3) and falling the residence time that has increased liquid dung along pipe (5) facilitates decorating film to precipitate, thereby detention the Enterozoa ovum; On the other hand, because guiding stirs, form multi-level full pond fermentation, the scum silica frost of frequent generation is constantly broken up, transposition, degraded, liquefaction, account for long-pending to stop scum silica frost to hold the position, avoid reducing, thereby improved zymogenic ecotope, promoted fermentation, degraded, digestion and the gasification of liquid dung because of scum silica frost accounts for the long-pending fermentation function that causes.So far, contriver's purpose and task all are achieved.
Fall and generally to use the cement prefabricated pipe along pipe (5), its internal diameter is 20～30cm, and every is fallen and is advisable with 30～40cm along the lower port of the pipe distance at the bottom of the anaerobic digester, and upper port presses with biogas in the anaerobic digester that 20～45cm is advisable under the high liquid level (HLL) when serving as zero.
The structure of main water pressure house (6) and secondary water pressure house (8) can be very simple, and empty van formula structure shown in Figure 1 is the simplest a kind of, and they can use brick, barnacle one-tenth or cement cast-in-place.
Anaerobic digester (1), (2) generally water with Steel Concrete, and airway (11) and removable cover (12) are equipped with in the top, and inner warding off with cement mortar stuck with paste and swabbing, is criterion with water-tight and gas leakage.Also can directly be contained in airway (11) on the removable cover (12).Removable cover (12) is that safety plug can be tightened sealing with yellow mud at ordinary times for when maintenance turnover again, smears cement again, keeps jam-pack and airtight.Available brick one-tenth of partition wall (3) or cement are cast-in-place, and paste is warded off on the two sides, and zero biogas that its height should surpass this anaerobic digester is pressed the height of high liquid level (HLL), does not allow liquid dung to get over partition wall (3) and mistake.Horizontal title page (4) can also be installed on the partition wall (3), and its effect can increase the effect of the multi-level fermentation in full pond.The installation of title page (4) and arrangement belong to known technology, repeat no more.
Better for the treatment effect that makes liquid dung, can also anaerobism filtering basin (9) be installed afterwards in secondary water pressure house (8).If the load of handling is excessive, then can install an aerobic aeration pond (10) or aerobic aeration pipeline afterwards again at anaerobism filtering basin (9).
The cubic capacity of secondary anaerobic digester (1), (2) can be by the flat 0.3m of people
3Calculate, excrement group residence time in the secondary anaerobic digester was generally about 60 days, and the big I of aerobic aeration pond (10) is by the flat 0.06m of people
3Calculate.Whole facility can be made into fully buried, does not take up an area of surface-area, and its top also can be built the garden, repairs roads or be done other utilization.
Use the present invention's (referring to have this a kind of embodiment of major and minor water pressure house, anaerobism filtering basin) to handle low concentration fecal sewage from city, suspended substance is less than the 500mg/ liter in the water after the processing, and the roundworm egg clearance reaches 95～99%, and colititre reaches 10
-5～10
-3, the COD clearance reaches 85～95%, and therefore, the liquid dung after the processing has reached or has reached substantially innoxious degree.Use the present invention also can be used for handling non-toxic organic trade effluent and other city domestic sewages, effect is remarkable equally.
Use the present invention, can not only handle city domestic sewage efficiently, and cheap, need not daily administration, consumes energy can also constantly not extracted biogas, really can change evil for benefit, turns waste into wealth.So suitable especially auxiliary facility that divides processing sanitary sewage in building as urban architecture.The present invention is for promoting the processing of black water, and purification environmental-protection is safeguarded ecology, obtains through refining the energy, has made useful contribution.
Claims (2)
1, a kind of anaerobic digestion equipment of lower concentration liquid dung, combine by first anaerobic digester (1) and second anaerobic digester (2), partition wall (3) is housed in each anaerobic digester, each anaerobic digester is separated into some lattice, it is characterized in that being equipped with on each partition wall (3) 2～6 falls along pipe (5), a main water pressure house (6) is housed between two anaerobic digesters, has water pipe (7) that last lattice of first anaerobic digester (1) and first lattice of second anaerobic digester (2) are connected with the bottom of main water pressure house (6) respectively.
2, the anaerobic digestion equipment of the said lower concentration liquid dung of claim 1, it is characterized in that second anaerobic digester (2) also is equipped with a secondary water pressure house (8) afterwards, and have water pipe (7) that last lattice of second anaerobic digester (2) are connected with the bottom of secondary water pressure house (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85102278 CN1011585B (en) | 1985-04-01 | 1985-04-01 | Method and equipment for treating low concentration fecal sewage from city |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85102278 CN1011585B (en) | 1985-04-01 | 1985-04-01 | Method and equipment for treating low concentration fecal sewage from city |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85102278A CN85102278A (en) | 1986-09-17 |
| CN1011585B true CN1011585B (en) | 1991-02-13 |
Family
ID=4792390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85102278 Expired CN1011585B (en) | 1985-04-01 | 1985-04-01 | Method and equipment for treating low concentration fecal sewage from city |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1011585B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212465A (en) * | 2011-06-22 | 2011-10-12 | 高节义 | Large-scale methane tank |
| CN103539313A (en) * | 2012-07-08 | 2014-01-29 | 安徽阜阳永志环能工程有限公司 | Public toilet anaerobic purifier |
| CN115947515B (en) * | 2023-03-15 | 2023-07-28 | 河北京安生物能源科技股份有限公司 | Livestock manure water treatment method and system |
-
1985
- 1985-04-01 CN CN 85102278 patent/CN1011585B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85102278A (en) | 1986-09-17 |
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