CN202156982U - Village domestic sewage treatment system suitable for north areas in China - Google Patents

Village domestic sewage treatment system suitable for north areas in China Download PDF

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Publication number
CN202156982U
CN202156982U CN2011202704063U CN201120270406U CN202156982U CN 202156982 U CN202156982 U CN 202156982U CN 2011202704063 U CN2011202704063 U CN 2011202704063U CN 201120270406 U CN201120270406 U CN 201120270406U CN 202156982 U CN202156982 U CN 202156982U
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CN
China
Prior art keywords
treatment
domestic sewage
rural areas
light filter
north china
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Expired - Fee Related
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CN2011202704063U
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Chinese (zh)
Inventor
刘东生
李想
赵立欣
王飞
周玮
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Chinese Academy of Agricultural Engineering CAAE
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Chinese Academy of Agricultural Engineering CAAE
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Priority to CN2011202704063U priority Critical patent/CN202156982U/en
Application granted granted Critical
Publication of CN202156982U publication Critical patent/CN202156982U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a village domestic sewage treatment system suitable for north areas in China, which consists of a sewage anaerobic hydrolysis tank, an aerobic biological filtering tank, a horizontal subsurface flow wetland, a water pump and a pipeline, wherein the aerobic biological filtering tank comprises an atomization nozzle and a light filter material; and the horizontal subsurface flow wetland comprises an aquatic plant, a dephosphorization filler and a liquid level controller. Sewage to be processed automatically flows into the anaerobic hydrolysis tank from a water inlet, and then enters the aerobic biological filtering tank after being processed, and then enters the horizontal subsurface flow wetland, and the discharge water after treatment reaches standards and then is discharged. In the village domestic sewage treatment system, by adopting the high-efficiency denitrification and dephosphorization processes, complete underground treatment facilities, wetland liquid level controlled adjustment and other measures, the operating cost is reduced, the treatment efficiency is improved, and the high-efficiency and stable operation in cold weather condition can be realized, so as to provide a novel village domestic sewage treatment technology for the north areas in China.

Description

A kind of domestic sewage in rural areas by using treatment system that is suitable for north China
Technical field:
The utility model belongs to the domestic sewage in rural areas by using processing technology field, relates to a kind of domestic sewage in rural areas by using treatment system that is suitable for north China.
Background technology:
Along with the fast development of China's rural economy and improving constantly of living standards of the people; The domestic sewage in rural areas by using quantity discharged constantly increases; Become the major incentive that surface water body eutrophication such as rivers and lakes and groundwater azotate exceed standard; China's vast Rural areas ecotope is constituted serious threat, caused the extensive concern of the whole society.North China temperature is totally low than southern area; Especially winter, ten minutes was cold, and there is this crucial common problem of nitrogen phosphorus poor removal effect in winter mostly in distributing country sewage treatment technologies such as existing unpowered anaerobic biological treatment, land percolation, artificial swamp.
To the deficiency of the existing domestic sewage in rural areas by using treatment technology of north China, the utility model is intended the domestic sewage in rural areas by using treatment system of developing the suitable north China of being made up of anaerobic fixed film reactor, aerobic biofilter, horizontal drowned flow artificial wet land, water pump and pipeline.This system carries out pre-treatment with anaerobic fixed film reactor to domestic sewage in rural areas by using; With the core processing unit of aerobic biofilter, remove the nitrogen in the sewage as denitrogenation; With the core processing unit of horizontal drowned flow artificial wet land, remove the phosphorus in the sewage as dephosphorization; Whole treatment facilities are positioned at underground, and through the controllable adjustment to the artificial swamp water level, guarantee at north China effluent quality in winter qualified discharge.Evidence, the new technology of exploitation has good treatment effect to the north China domestic sewage in rural areas by using in view of the above.
The utility model content:
The purpose of the utility model is to overcome existing deficiency, and a kind of efficient life in the countryside treatment system that is suitable for north China is provided.The domestic sewage in rural areas by using treatment system that is suitable for north China is made up of anerobic sowage hydrolytic tank, aerobic biofilter, horizontal drowned flow artificial wet land, water pump and pipeline.Wherein aerobic biofilter comprises atomizer and light filter material; Horizontal drowned flow artificial wet land comprises waterplant, dephosphorization filler, fluid level controller.
Described anaerobic fixed film reactor is full underground type, and is provided with manhole, is convenient to desilting.
Described aerobic biofilter is full underground type, and the particle diameter of light filter material is 2~4mm, and the light filter material bed thickness is 60cm, and atomizer is 30~50cm apart from light filter material top layer distance, and the sprinkling diameter is 1.2~1.5m.
The dephosphorization filler bed thickness of described horizontal drowned flow artificial wet land is not less than 1.2m, and the dephosphorization filler is saturated replacing of absorption, and the replacement cycle is per 10 years 1 time.
Its length of semi plastic flexible pipe can regulated in 40~100cm scope on the vertical direction in the described fluid level controller.
Being suitable for north China domestic sewage in rural areas by using treatment process is: in treatment sewage flows into anaerobic fixed film reactor from water-in, through deposition, anerobes effect, tentatively decompose and remove organism in the sewage, the residence time is 18~24 hours; Utilize water pump to pass through atomizer in the aerobic biofilter through the sewage that anaerobic fixed film reactor is handled; Be sprayed at the light filter material top layer equably; Organism and nitrogen are further removed in denitrification through reoxygenation and aerobic bacteria, uniformly-spaced spray every day 12 times, and hydraulic load is 40~60cm/d; The aerobic biofilter water outlet gets into horizontal drowned flow artificial wet land; Main under the adsorption of dephosphorization filler; And microbiological degradation and plant absorbing effect are gone down except that the phosphorus in the sewage; Simultaneously nitrogen is also had certain removal effect, the water outlet qualified discharge gets into environment water, and hydraulic load is 0.1~0.15m 3/ (m 2.d).
The beneficial effect that the utility model compared with prior art has is: this system is provided with anaerobic fixed film reactor, aerobic biofilter, horizontal drowned flow artificial wet land, can efficiently remove organism and nitrogen phosphorus in the sewage, the water outlet qualified discharge; Whole system is full underground type, and artificial swamp water level controllable adjustment, helps system's insulation in winter, has guaranteed the long-term steady running of north China domestic sewage in rural areas by using treatment system; This system makes full use of the physical features discrepancy in elevation and carries out process layout, is microkinetic type domestic sewage in rural areas by using treatment system, and running cost is low; This system adopts robotization control, and is simple to operate, easy to maintenance.
Description of drawings:
Fig. 1 is the structural representation of the utility model
Embodiment:
Embodiment further describes the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the domestic sewage in rural areas by using treatment system that is suitable for north China is made up of anerobic sowage hydrolytic tank (1), aerobic biofilter (2), horizontal drowned flow artificial wet land (3), water pump (4) and pipeline (5).Wherein aerobic biofilter (2) comprises atomizer (6) and light filter material (7); Horizontal drowned flow artificial wet land (3) comprises waterplant (8), dephosphorization filler (9), fluid level controller (10).
Described anaerobic fixed film reactor (1) is full underground type, and is provided with manhole (11), is convenient to desilting.
Described aerobic biofilter (2) is full underground type, and the particle diameter of light filter material (7) is 2~4mm, and light filter material (7) bed thickness is 60cm, and atomizer (6) is 30~50cm apart from light filter material (7) top layer distance, and the sprinkling diameter is 1.2~1.5m.
Dephosphorization filler (9) bed thickness of described horizontal drowned flow artificial wet land (3) is not less than 1.2m, and dephosphorization filler (9) is saturated replacing of absorption, and the replacement cycle is per 10 years 1 time.
Its length of semi plastic flexible pipe (12) can regulated in 40~100cm scope on the vertical direction in the described fluid level controller (10).
Being suitable for north China domestic sewage in rural areas by using treatment process is: treatment sewage flows in the anaerobic fixed film reactor (1) from water-in, through deposition, anerobes effect, tentatively decomposes and removes organism in the sewage, and the residence time is 18~24 hours; Utilize water pump (4) to pass through atomizer (6) in the aerobic biofilter (2) through the sewage that anaerobic fixed film reactor is handled; Be sprayed at light filter material (7) top layer equably; Organism and nitrogen are further removed in denitrification through reoxygenation and aerobic bacteria; Uniformly-spaced spray every day 12 times, hydraulic load is 40~60cm/d; Aerobic biofilter (2) water outlet gets into horizontal drowned flow artificial wet land (3); Mainly under the adsorption of dephosphorization filler (9); And microbiological degradation and waterplant (8) sorption are gone down except that the phosphorus in the sewage; Simultaneously nitrogen is had certain removal effect, the water outlet qualified discharge gets into environment water, and hydraulic load is 0.1~0.15m 3/ (m 2.d).Test-results shows, as sewage water inlet COD CrConcentration is 200~450mg/L, NH 3-N concentration is 20~90mg/L, and TP concentration is 2~6.5mg/L, treatment system water outlet COD Cr≤60mg/L, NH 3-N≤15mg/L, TP≤1mg/L reaches " urban wastewater treatment firm pollutant emission standard " (GB 18918-2002) one-level B standard.

Claims (5)

1. domestic sewage in rural areas by using treatment system that is suitable for north China; It is characterized in that forming by anerobic sowage hydrolytic tank (1), aerobic biofilter (2), horizontal drowned flow artificial wet land (3), water pump (4) and pipeline (5); Wherein aerobic biofilter (2) comprises atomizer (6) and light filter material (7), and horizontal drowned flow artificial wet land (3) comprises waterplant (8), dephosphorization filler (9), fluid level controller (10).
2. the domestic sewage in rural areas by using treatment system that is suitable for north China according to claim 1 is characterized in that: described anaerobic fixed film reactor (1) is full underground type, and is provided with manhole (11), is convenient to desilting.
3. the domestic sewage in rural areas by using treatment system that is suitable for north China according to claim 1; It is characterized in that: described aerobic biofilter (2) is full underground type; The particle diameter of light filter material (7) is 2~4mm; Light filter material (7) bed thickness is 60cm, and atomizer (6) is 30~50cm apart from light filter material (7) top layer distance, and the sprinkling diameter is 1.2~1.5m.
4. the domestic sewage in rural areas by using treatment system that is suitable for north China according to claim 1; It is characterized in that: dephosphorization filler (9) bed thickness of described horizontal drowned flow artificial wet land (3) is not less than 1.2m; Dephosphorization filler (9) is saturated replacing of absorption, and the replacement cycle is per 10 years 1 time.
5. the domestic sewage in rural areas by using treatment system that is suitable for north China according to claim 1 is characterized in that: its length of semi plastic flexible pipe (12) can regulated in 40~100cm scope on the vertical direction in the described fluid level controller (10).
CN2011202704063U 2011-07-28 2011-07-28 Village domestic sewage treatment system suitable for north areas in China Expired - Fee Related CN202156982U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202704063U CN202156982U (en) 2011-07-28 2011-07-28 Village domestic sewage treatment system suitable for north areas in China

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202704063U CN202156982U (en) 2011-07-28 2011-07-28 Village domestic sewage treatment system suitable for north areas in China

Publications (1)

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CN202156982U true CN202156982U (en) 2012-03-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102336500A (en) * 2011-07-28 2012-02-01 农业部规划设计研究院 Rural domestic sewage treatment system suitable for northern part of China and technology thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102336500A (en) * 2011-07-28 2012-02-01 农业部规划设计研究院 Rural domestic sewage treatment system suitable for northern part of China and technology thereof
CN102336500B (en) * 2011-07-28 2013-06-05 农业部规划设计研究院 Rural domestic sewage treatment system suitable for northern part of China and technology thereof

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Granted publication date: 20120307

Termination date: 20130728