CN203440216U - Device used for denitrification and dephosphorization by using industrial solid waste - Google Patents
Device used for denitrification and dephosphorization by using industrial solid waste Download PDFInfo
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- CN203440216U CN203440216U CN201320578712.2U CN201320578712U CN203440216U CN 203440216 U CN203440216 U CN 203440216U CN 201320578712 U CN201320578712 U CN 201320578712U CN 203440216 U CN203440216 U CN 203440216U
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Abstract
The utility model belongs to the field of denitrification and dephosphorization of wastewater and discloses a device used for denitrification and dephosphorization by using industrial solid waste. The device comprises a primary device and a secondary device, wherein the primary device is horizontally arranged at the front part of the secondary device; the bottom of the primary device is communicated with the bottom of the secondary device via a pipeline; an electromagnetic valve No. 2 and a water pump are arranged on the pipeline; a plant layer, a primary device reaction filtering material and cobbles are placed in the primary device from top to bottom in sequence; a secondary device reaction filtering material and cobbles are placed in the secondary device from top to bottom in sequence; aeration diffusion openings are formed in bottom-middle part of the primary device filtering material of the primary device; an electromagnetic valve No. 1 is arranged on a pipeline for connecting the aeration diffusion openings with an air compressor; a backflow pipeline is arranged on one side of the primary device and communicated with the bottom and the upper end of the primary device; a backflow pump is arranged on the backflow pipeline. The device occupies small area, is low in running cost, and achieves the purpose of efficiently removing nitrogen and phosphorus in the wastewater.
Description
Technical field
The utility model belongs to sewage denitrification and dephosphorization field, more particularly, relates to a kind of industrial solid castoff that utilizes and domestic sewage in rural areas by using and livestock breeding wastewater is carried out to the device of denitrogenation dephosphorizing.
Background technology
Along with developing rapidly of China's economy, the pollution problem of life in the countryside and livestock breeding wastewater is day by day serious.The feature of two types of sewage maximums is that concentration of nitrogen and phosphorus is high.Nitrogen phosphorus is also the highest composition of concerned degree in wastewater pollutants.Water body is as the important ground of assembling, when saturated along with the continuous input of nitrogen phosphorus, can cause a series of serious environmental problems such as body eutrophication, brought certain negative impact to the mankind's productive life simultaneously, build and be applicable to that country sewage distributing distributes and livestock and poultry cultivation scale feature and can efficiently to remove the Sewage treatment systems of nitrogen phosphorus imperative.
The popularity rate of China's domestic sewage in rural areas by using and livestock and poultry farm waste water disposal facility is lower at present, and a part of facility exists the problem that treatment process is simple, effect is bad; Although part pollutant removal is better, its cost of investment is large, need great number working cost or larger land area, and for example some anaerobic aerobic integrated metallization processes running costs are high, energy consumption is large, and artificial swamp occupies a large amount of soils, capital cost is high; Some technique is higher to the clearance of nitrogen or phosphorus, but cannot make both efficiently remove for a long time, for example sand filtration treatment system and algae pool technology.For reaching the object of nitrogen phosphorus in less energy-consumption, high-level efficiency removal waste water, efficient circulation with resource is utilized as core thinking, study new treatment facility and operation process, and being effectively applied to life in the countryside and livestock and poultry farm sewage disposal, this is to match with the general objective of whole environmental protection and economy Sustainable development.
Filtrate is as the medium of sewage disposal reaction, and the quality of its performance directly affects the efficiency that in sewage, nitrogen and phosphorus are removed, and in existing report, some trade waste is widely used in sewage disposal, such as hard coal, slag, flyash etc.The comprehensive utilization of the byproduct producing in water factory, mining industry and metallurgical process in recent years becomes study hotspot, comprising in dehydration aluminium mud, acid and residue, light calcined magnesia, red sand and red soil spherolite.In dehydration aluminium mud, acid and residue and light calcined magnesia come from respectively by product in the Water treatment of waterworks, produce the residue that produces in rutile process and the magnesium oxide resistates in producing, the above two contain abundant iron and calcium, the latter be take magnesium oxide as main, from water pollutant removal aspect is analyzed, dehydration aluminium mud has good effect to sewage denitrification and dephosphorization, in acid, can reduce the concentration of dissolved organic matter in surface water body, nitrogen and phosphorus with residue, light calcined magnesia is removed the phosphorus in sewage by chemisorption; Red sand and red soil spherolite are the wastes of different shape in aluminum oxide refining, and this kind of residue is rich in iron, in wastewater treatment, can efficiently remove and adsorb nutritive substance and micro-metals.Above-mentioned several industrial solid castoff has larger specific surface area in addition, pollutent in water body is had to certain adsorptive power, chemical constitution is stablized non-secondary pollution simultaneously, if several persons can be combined as to filtering media application in life in the countryside and livestock breeding wastewater treatment technology, at a low price efficient reaction medium can be provided on the one hand, a kind of processing mode of new recycling also can be provided on the other hand.
In existing document, there is above-mentioned several trade waste as filtrate, to dispose of sewage or surface water separately, rarely have two or more filtrate mixing aftertreatment sanitary sewage or the livestock breeding wastewater of employing; In addition, it is limited that single filter material is removed dirty pollutant in water kind, and filtrate mixes and directly carries out sewage disposal nitrogen, phosphorus poor removal effect; There is the problem that floor space is large, working cost is high in some technology in addition.
Summary of the invention
1. the technical problem that will solve
For various existing domestic sewage in rural areas by using and the small-sized treatment system of livestock breeding wastewater, can not have Construction and operation concurrently with low cost and can efficiently remove the problem of nitrogen and phosphorus in sewage simultaneously, the utility model provides a kind of device that utilizes industrial solid castoff denitrogenation dephosphorizing.This device has realized that floor space is little, working cost is low, the object that in sewage, nitrogen and phosphorus efficiency are removed.
2. technical scheme
The purpose of this utility model is achieved through the following technical solutions.
A kind of device that utilizes industrial solid castoff denitrogenation dephosphorizing, comprise a stage arrangement and secondary device, a described stage arrangement is horizontally set on the front portion of secondary device, and the described bottom of a stage arrangement and the bottom of secondary device be by pipeline communication, on this pipeline, be provided with No. two magnetic valves and water pump;
In a described stage arrangement, be followed successively by layer of plants, one-level device reaction filtrate and pebbles from top to bottom.This one-level device reaction filtrate is industrial solid castoff, can select the mixture of dehydration aluminium mud and light calcined magnesia or the mixture of dehydration aluminium mud and red sand.
Described secondary device is followed successively by secondary device reaction filtrate and pebbles from top to bottom.This secondary device reaction filtrate is industrial solid castoff, can select in acid and the mixture of residue and light calcined magnesia or acid in the mixture of residue and red soil spherolite.
In in the one-level device reaction filtrate of a described stage arrangement, bottom is provided with aeration diffusing opening, magnetic valve is set on the pipeline that aeration diffusing opening is connected with air compressor No. one, and a stage arrangement side is provided with bottom and upper end that reflux line is communicated with a stage arrangement, on this reflux line, reflux pump is set.
Preferably, described air compressor, reflux pump, water pump, a magnetic valve are all connected with automatic control system with No. two magnetic valves.
3. beneficial effect
Than prior art, the utility model has the advantage of:
(1) device of the present utility model adopts cloth and the combined method of science simultaneously, has overcome filtrate and has directly combined and carry out sewage disposal nitrogen, problem that tp removal rate is low, has guaranteed the efficient removal of nitrogen phosphorus;
(2) system cost of the present utility model is cheap, effect is remarkable, is especially applicable to domestic sewage in rural areas by using and livestock breeding wastewater and processes, and has larger market outlook and application value.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
In figure: 1 a, stage arrangement; 2, secondary device; 3, one-level device reaction filtrate; 4, secondary device reaction filtrate; 5, layer of plants; 6, pebbles; 7, aeration diffusing opening; 8, air compressor; 9, reflux pump; 10, water pump; 11, a magnetic valve; 12, No. two magnetic valves; 13, automatic control system.
Embodiment:
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment 1: certain domestic sewage in rural areas by using is processed
As Fig. 1, the cylindrical high 1.6m of a stage arrangement 1, diameter 1.2m, height of filter media layer 1.5m, useful volume 1.7m
33 layers of one-level device reaction filtrates and pebbles 6 layer heights are respectively 1.4m and 10cm, and one-level device reaction filtrate 3 is selected dehydration aluminium mud and light calcined magnesia, and both are respectively from certain waterworks He Mou magnesium oxide factory, one stage arrangement 1 top serike layer 5, kind is for hanging Zhong Liu; Secondary device 2 is cylindrical and dimensional structure is identical with a stage arrangement 1, and secondary device reaction filtrate 4 is selected in acid and residue and light calcined magnesia, and both are respectively from certain ilmenite Chang Hemou magnesium oxide factory; The bottom pipe laying of the bottom of one stage arrangement 1 and secondary device 2 is communicated with, and is provided with No. two magnetic valves 12 and water pump 10 on this pipeline; Aeration diffusing opening 7 is installed in one-level device reaction filtrate 3 bottoms of one stage arrangement 1, utilize air compressor 8 that air is blasted in a stage arrangement 1 by aeration diffusing opening 7, magnetic valve 11 is set No. one on the pipeline that air compressor 8 is connected with aeration diffusing opening 7, and on stage arrangement 1 reflux line, reflux pump 9 is set; Air compressor 8, reflux pump 9, water pump 10, a magnetic valve 11 are all connected with automatic control system 13 with No. two magnetic valves 12; Whole device and pipeline are all made with PVC material.
Running situation: be 1.0m at hydraulic load
3m-
2d
-1condition under carry out water distribution, first, by automatic control system 13, control the magnetic valve 12 that switches off the pump 10 and No. two, by the raw waste water (1.0m of stage arrangement 1 useful volume 60% volume
3) from stage arrangement 1 top, be distributed into this device, under anaerobic state, stop 45min, after stopping, pass through reflux pump 9 by 0.7m
3sewage backflow to stage arrangement 1 top, open air compressor 8 and a magnetic valve 11 simultaneously, the aerobic aeration time is 50min, blasts air capacity 3.0mL h
-1l
-1; After aeration finishes, a stage arrangement 1 is distributed into the raw waste water (0.7m of stage arrangement 1 useful volume 40% volume again
3), under anaerobic state, stop 70min, after stopping, pass through reflux pump 9 by 1.2m
3sewage backflow to stage arrangement 1 top, start aerobic blast aeration simultaneously, secondary aeration time is 40min, blasts air capacity 3.0mL h
-1l
-1; After secondary aeration finishes, open water pump 10 and No. two magnetic valves 12, the sewage after a stage arrangement 1 is processed enters secondary device 2 by upflowing water distribution manner; Last sewage stops 40min at secondary device 2, and the sewage after processing, from 6 layers of discharge of secondary device 2 bottom pebbles, completes an entire run cycle.
This system is moved April continuously, every 7 days, effluent quality is monitored, primary study nitrogen and phosphorus go out water concentration and clearance, certain domestic sewage in rural areas by using is after this system is processed, COD in single filter material combination water outlet, ammonia nitrogen, total nitrogen and total tp removal rate variation range are respectively 41～72%, 71～80%, 27～54% and 96～98%, COD in combination filtrate of the present utility model water outlet, ammonia nitrogen, total nitrogen and total tp removal rate variation range are respectively 80～86%, 94～99%, 80～86% and 99%(as table 1), combination filtrate has higher nitrogen than single filter material combination process, phosphorus removal effect.
The water inlet of certain domestic sewage in rural areas by using and effluent quality test index situation in table 1 embodiment 1
| Test index | COD(mg/L) | NH 3-N(mg/L) | TN(mg/L) | TP(mg/L) |
| Water inlet | 130～320 | 25.2～53.1 | 27.1～68.9 | 2.33～6.45 |
| Single filter material combination water outlet | 76.8～90.6 | 7.3～10.6 | 12.6～36.7 | 0.08～0.13 |
| The water outlet of combination filtrate | 26.2～45.1 | 1.2～3.1 | 4.8～9.6 | 0.01～0.03 |
| Single filter material combination clearance (%) | 41～72 | 71～80 | 27～54 | 96～98 |
| Combination filtrate clearance (%) | 80～86 | 94～99 | 80～86 | 99 |
Embodiment 2: Dui Mou plant waste water is processed
As Fig. 1, a stage arrangement 1 is a cube height 1.5m, long 1.0m, wide 0.7m, height of filter media layer 1.4m, useful volume 1.0m
33 layers of one-level device reaction filtrates and pebbles 6 layer heights are respectively 1.3m and 10cm, one-level device reaction filtrate 3 is selected dehydration aluminium mud and red sand, both are respectively from certain waterworks He Mou aluminum oxide refinery, and add identical in quality, one stage arrangement 1 top serike layer 5, kind is reed; Secondary device 2 be cubes and dimensional structure identical with a stage arrangement 1, secondary device reaction filtrate 4 is selected in acid and residue and red soil spherolite, both are respectively from certain ilmenite Chang Hemou aluminum oxide refinery, and add identical in quality; The bottom of the bottom of one stage arrangement 1 and secondary device 2 is communicated with, and water pump 10 and No. two magnetic valves 12 are installed on this pipeline; One-level device reaction filtrate 3 bottoms of one stage arrangement 1 arrange aeration diffusing opening 7, utilize air compressor 8 that air is blasted in a stage arrangement 1 by aeration diffusing opening 7, magnetic valve 11 is set No. one on the pipeline that air compressor 8 is connected with aeration diffusing opening 7, and on stage arrangement 1 reflux line, reflux pump 9 is set; Air compressor 8, reflux pump 9, water pump 10, a magnetic valve 11 are all connected with automatic control system 13 with No. two magnetic valves 12; Whole device and pipeline are all made with pmma material.
Running situation: be 0.8m at hydraulic load
3m-
2d
-1condition under carry out water distribution, first, by automatic control system 13, control and close No. two magnetic valves 12 and water pump 10, by the raw waste water (0.5m of stage arrangement 1 useful volume 50% volume
3) from stage arrangement 1 top, be distributed into this device, under anaerobic state, stop 60min, after stopping, pass through reflux pump 9 by 0.4m
3sewage backflow to stage arrangement 1 top, open air compressor 8 and a magnetic valve 11 simultaneously, the aerobic aeration time is 40min, blasts air capacity 4.0mL h
-1l
-1; After aeration finishes, a stage arrangement 1 is distributed into the raw waste water (0.5m of stage arrangement 1 useful volume 50% volume again
3), under anaerobic state, stop 80min, after stopping, pass through reflux pump 9 by 0.8m
3sewage backflow to stage arrangement 1 top, start aerobic blast aeration simultaneously, secondary aeration time is 50min, blasts air capacity 4.0mL h
-1l
-1; After secondary aeration finishes, open water pump 10 and No. two magnetic valves 12, the sewage after a stage arrangement 1 is processed enters secondary device 2 by upflowing water distribution manner; Last sewage stops 60min at secondary device 2, and the sewage after processing, from 6 layers of discharge of secondary device 2 bottom pebbles, completes an entire run cycle.
This system is moved March continuously, week about water quality monitored, and result of study demonstration, plant's wastewater treatment adopts combination filtrate to be better than single filter material combination process (as table 2) to ammonia nitrogen, total nitrogen and total phosphorus removal effect.
The water inlet of table 2 embodiment 2 Zhong Mou plant waste water and effluent quality test index situation
Claims (2)
1. a device that utilizes industrial solid castoff denitrogenation dephosphorizing, comprise a stage arrangement (1) and secondary device (2), it is characterized in that, a described stage arrangement (1) is horizontally set on the front portion of secondary device (2), and the bottom of a described stage arrangement (1) and the bottom of secondary device (2), by pipeline communication, are provided with No. two magnetic valves (12) and water pump (10) on this pipeline;
In a described stage arrangement (1), be followed successively by layer of plants (5), one-level device reaction filtrate (3) and pebbles (6) from top to bottom;
Described secondary device (2) is followed successively by secondary device reaction filtrate (4) and pebbles (6) from top to bottom;
In in the one-level device reaction filtrate (3) of a described stage arrangement (1), bottom is provided with aeration diffusing opening (7), on the pipeline that described aeration diffusing opening (7) is connected with air compressor (8), a magnetic valve (11) is set, and a described stage arrangement (1) side is provided with bottom and the upper end that reflux line is communicated with a stage arrangement (1), and reflux pump (9) is set on this reflux line.
2. a kind of device that utilizes industrial solid castoff denitrogenation dephosphorizing according to claim 1, it is characterized in that, air compressor (8), reflux pump (9), water pump (10), a magnetic valve (11) and No. two magnetic valves (12) are all connected with automatic control system (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320578712.2U CN203440216U (en) | 2013-09-18 | 2013-09-18 | Device used for denitrification and dephosphorization by using industrial solid waste |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320578712.2U CN203440216U (en) | 2013-09-18 | 2013-09-18 | Device used for denitrification and dephosphorization by using industrial solid waste |
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| Publication Number | Publication Date |
|---|---|
| CN203440216U true CN203440216U (en) | 2014-02-19 |
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|---|---|---|---|
| CN201320578712.2U Expired - Fee Related CN203440216U (en) | 2013-09-18 | 2013-09-18 | Device used for denitrification and dephosphorization by using industrial solid waste |
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| CN (1) | CN203440216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449682A (en) * | 2013-09-18 | 2013-12-18 | 环境保护部南京环境科学研究所 | Device and method for denitrification and dephosphorization by using industrial solid wastes |
| CN109095581A (en) * | 2018-10-18 | 2018-12-28 | 重庆大学 | City appearance water body CaCO3The control method of the online dephosphorization system of ore particle |
-
2013
- 2013-09-18 CN CN201320578712.2U patent/CN203440216U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449682A (en) * | 2013-09-18 | 2013-12-18 | 环境保护部南京环境科学研究所 | Device and method for denitrification and dephosphorization by using industrial solid wastes |
| CN103449682B (en) * | 2013-09-18 | 2015-01-07 | 环境保护部南京环境科学研究所 | Device and method for denitrification and dephosphorization by using industrial solid wastes |
| CN109095581A (en) * | 2018-10-18 | 2018-12-28 | 重庆大学 | City appearance water body CaCO3The control method of the online dephosphorization system of ore particle |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20150918 |
|
| EXPY | Termination of patent right or utility model |