CN85102278A - The treatment process of low concentration fecal sewage from city and equipment - Google Patents
The treatment process of low concentration fecal sewage from city and equipment Download PDFInfo
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- CN85102278A CN85102278A CN85102278.2A CN85102278A CN85102278A CN 85102278 A CN85102278 A CN 85102278A CN 85102278 A CN85102278 A CN 85102278A CN 85102278 A CN85102278 A CN 85102278A
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- anaerobic
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- anaerobic digester
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Abstract
The invention belongs to the processing of trade effluent.
The present invention adopts secondary anaerobic digestion to add anaerobism and filters the method that adds aerobic aeration and handle low concentration fecal sewage from city.Key equipment is the multi-level anaerobic digester of secondary.Partition wall is arranged in the pond, the door leaf leaf is housed on the partition wall and, leans on the cross current ager between two ponds along pipe.This equipment can utilize biogas to press and the automatic stirring of hydraulic pressure formation liquid dung and realize that full pond ferments at many levels, improves treatment effect greatly.Liquid dung after the processing can be as the non-domestic water of urban architecture, and a complete set of equipment is built in undergroundly, does not take up an area of surface-area, and the also recyclable energy is the desirable support equipment of urban skyscraper.
Description
The invention belongs to the improvement of city domestic sewage treatment process.
Before the present invention, the treatment process of low concentration fecal sewage from city generally adopts single lattice or many grid septic tanks (81 years versions " engine hygiene " P332 of the People's Press～333), and the effect of handling liquid dung is relatively poor; (81 years versions " engine hygiene " P335 of the People's Press～336) that heavy ovum formula manure pit of the fermentation adopted or methane-generating pit fermentative processing liquid dung are also arranged, its shortcoming are that sediment is too many in handling, and also need the secondary harmless treatment.The liquid dung that above-mentioned treating method is handled all can only be made fertilizer, also is one of shortcoming.Other consume energy time-consuming especially such as ways such as heating fermentation, mechanical stirring, transportation focus on, inconvenience generally is accepted.
The present invention is exactly in order to overcome above-mentioned shortcoming, and is should method simply cheap for seeking a kind of novel method and equipment of harmless on the spot processing lower concentration liquid dung, the source design of not consuming energy again.
Process flow figure of the present invention as shown in Figure 1, its main points are from the effusive lower concentration liquid dung of buildings (A) earlier through anaerobic digestion (B), the anaerobism of flowing through is then filtered (C), through aerobic aeration (D), can discharge or be used for non-domestic water to the waste water (E) after handling at last again.For scum silica frost and the sediment eliminating or produce when reducing anaerobic digestion, best scheme is that the multi-level anaerobic digestion of secondary is made in anaerobic digestion (B).Its key equipment is the multi-level anaerobic digester of secondary.The equipment that anaerobism is filtered (C) can be secondary combination anaerobism filtering basin (10), and the equipment of aerobic aeration (D) can be aerobic aeration pond (11).
The structure of the multi-level anaerobic digester of key equipment secondary is as shown in Figure 2: (1) and (2) is respectively first anaerobic digester and second anaerobic digester.(1), a main water pressure house (6) is arranged between (2), water pipe (7) is communicated with (6) with (1), (2).(1), partition wall (3) is housed in (2), generally there is the twice partition wall just passable in each anaerobic digester.2～10 horizontal door leaf leaves are housed on the partition wall, and each door leaf leaf can be different from the height in pond, also is equipped with 2～6 on every block wall and falls along pipe (5) each of pond every connection.Water pipe (7) preferably be communicated with (6) and (1) last every and (2) first every.(2) back can also be provided with one and pay water pressure house (9), and has water pipe (8) that (2) are communicated with (9), and last that (8) preferably are connected on (2) during connection is every the middle and lower part.(6) and the effect of (9) be: (1), when the liquid dung (2) ferments, under the anerobe effect, produce biogas, (1), (2) Nei liquid dung is pressed into (6) and (9), after, (6), (9) Nei hydraulic pressure and (1), (2) biogas pressure in and same-action are in (1), (2) Nei liquid dung, look the increase and decrease of using the biogas situation to cause biogas to press, (1), (2) Nei liquid dung will be gone up automatically and fall, the door leaf leaf moves up and down relatively, the door leaf leaf just stirs automatically to liquid dung, and the sediment scum silica frost can accumulate on each piece door leaf leaf, cooperates to fall the effect along pipe again, realize the fermentation of full pond, improved treatment effect greatly.Door leaf leaf (4) on every on the partition wall (3) can be arranged in stepped, up and down two door leaf leaves from vertical direction see should have a bit of topped mutually.This stepped can be one-sided, shown in Fig. 3-a, can be bilateral also, shown in Fig. 3-b.(1), (2) seal, airway and discharge port are arranged at its top, airway is collected biogas, discharge port also is the maintenance import, adds a cover at ordinary times with yellow mud sealing, the slurry of cementing again.Whole facility can be made fully buried, does not take up an area of surface-area, and garden, road can be built in its top.
The size of secondary anaerobic digester is by the flat 0.3m of people
3Calculate, the aeration tank is by the flat 0.06m of people
3Calculate, the secondary anaerobic digester is held and was stayed digestion time 60 days.
Use the present invention to handle low concentration fecal sewage from city, the no more than 500mg/ liter of suspended substance in the water, the parasitic ovum clearance is 95～99%, colititre reaches 10
-5～10
-3, the COD clearance reaches 70～85%, therefore, the liquid dung after the processing reaches innoxious degree substantially, so can discharge, irrigated farmland or as the non-domestic water of buildings, as breed fish, garden water such as sprinkling basin.Lower concentration liquid dung is effective, not only cheap because this method and apparatus is handled, on-the-spot disposal, do not take up an area of surface-area, but also can reclaim biogas as the attached energy of building thing, the affiliated facility of therefore suitable especially big or middle urban skyscraper thing.
Claims (5)
1, a kind of anaerobic treatment method of low concentration fecal sewage from city, the program that it is characterized in that this lower concentration liquid dung treatment process are anaerobic digestion → anaerobism filtration → aerobic aeration.
2, claim 1 said low concentration fecal sewage from city anaerobic treatment method is characterized in that said anaerobic digestion is the multi-level anaerobic digestion of secondary.
3, a kind of anaerobic digestion equipment of handling low concentration fecal sewage from city is characterized in that it is the multi-level anaerobic digester of secondary.It has two inside that first anaerobic digester (1) and second anaerobic digester (2) of partition wall (3) are housed, there is a main water pressure house (6) connection place of first and second anaerobic digesters, each anaerobic digester has water pipe (7) to communicate with main water pressure house respectively, is equipped with 2～10 on the every partition wall at the bottom of the pond or have other horizontal title page (4) of difference of altitude and 2～6 to fall along pipe (5).
4, the multi-level anaerobic digester of claim 3 said secondarys, it is characterized in that said second anaerobic digester (2) after, have one to pay water pressure house (9), and have water pipe (8) that second anaerobic digester (2) is communicated with a pair water pressure house (9).
5, the multi-level anaerobic digester of said secondary in the claim 3,4, every the door leaf leaf (4) that it is characterized in that partition wall (3) are arranged in one-sided stepped or bilateral is stepped.
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 true CN85102278A (en) | 1986-09-17 |
| CN1011585B 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) |
Cited By (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 |
| CN115947515A (en) * | 2023-03-15 | 2023-04-11 | 河北京安生物能源科技股份有限公司 | Livestock and poultry manure water treatment method and system |
-
1985
- 1985-04-01 CN CN 85102278 patent/CN1011585B/en not_active Expired
Cited By (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 |
| CN115947515A (en) * | 2023-03-15 | 2023-04-11 | 河北京安生物能源科技股份有限公司 | Livestock and poultry manure water treatment method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1011585B (en) | 1991-02-13 |
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| C19 | Lapse of patent right due to non-payment of the annual fee |