CN103073152A - Low-energy-consumption processing device for self-circulation sewage - Google Patents
Low-energy-consumption processing device for self-circulation sewage Download PDFInfo
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- CN103073152A CN103073152A CN2013100070743A CN201310007074A CN103073152A CN 103073152 A CN103073152 A CN 103073152A CN 2013100070743 A CN2013100070743 A CN 2013100070743A CN 201310007074 A CN201310007074 A CN 201310007074A CN 103073152 A CN103073152 A CN 103073152A
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- equalizing tank
- pump sump
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Abstract
The invention discloses a low-energy-consumption processing device for self-circulation sewage. The processing device comprises a water inlet tank, a regulating tank and a sand filter. The sand filter is connected in parallel between the water inlet tank and the regulating tank, the water inlet tank is connected with the sand filter through a reflux pump, and a check valve only allowing water to enter the water inlet tank from the regulating tank is arranged between the water inlet tank and the regulating tank; a water distributor for distributing sewage evenly to a sand filter surface layer is arranged at the top of the sand filter; a water collector for collecting water after sand filtration is arranged at the bottom of the sand filter; the height of the sand filter is higher than that of the regulating tank; the water level of the regulating tank is higher than that of the water inlet tank; and a water overflow weir for controlling the water to rise is arranged on the regulating tank. The processing device is economical, simple and convenient, efficient and suitable for processing rural domestic sewage rural.
Description
Technical field
The present invention relates to a kind of less energy-consumption self-circulation waste disposal plant, particularly a kind of rural domestic sewage treating device.
Background technology
Report of survey shows; 96% village does not have discharge conduit and Sewage treatment systems; productive life sewage arbitrarily discharges; cause the severe contamination of rural environment; become the potential potential safety hazard in Rural Water seedbed; aggravated the crisis of Freshwater resources, sanitary sewage unprocessed or that deal with improperly has become the one of the main reasons of rivers and lakes water quality deterioration.
At present, sewage treatment unit comprises BAF (BAF) and membrane bioreactor (MBR) etc.The treatment technology of How to choose domestic sewage of villages and small towns, key issue are the practical situation that will adapt to present villages and small towns, and decapacitation reaches the requirement of discharging standards, the more important thing is that construction investment economizes, and operational management is convenient, and working cost is low.
Compare with municipal sewage treatment, the characteristics of rural sewage treatment mainly concentrate on following some: the problems such as the Rural areas exists the sewage water yield and disperses, and the water yield is unstable.Water is comparatively concentrated in the time of morning, noon, dusk, and the water yield is larger, and the water yield when morning is zero substantially; Population is few, and water supply standard is lower; Water yield fluctuation is very large, and in the morning, noon, afternoon generally arranged among one day the peak period of a discharging, be difficult to correctly assess the pollution load of sanitary sewage and round the clock, seasonal variation; Various pollutant component concentration are lower in the sewage; Maintenance management technician and operational management experience famine.
For above characteristics, the shortcoming of prior art is as follows: because the sewage water yield is few, design scale is little, so expense for construction and working cost are too high; Because the water yield is larger in intraday fluctuation, low flow occurs even the situation of zero flow occurs at night, make microorganism be in dry state, cause the unstable of existing technical operation even paralysis; Because pollutant load is lower, processing efficiency is low when using prior art; Because existing Technology is comparatively complicated, need to have the technical professional to move and maintenance management, realize comparatively difficulty on remote ground, rural area.
Along with the development of rural economy, the Rural areas standard of living improves constantly, and the quantity discharged of domestic sewage in rural areas by using also constantly increases.Therefore, find as early as possible a kind of economy, easy, to be fit to the sewage disposal technology of Rural areas efficiently extremely urgent.
Summary of the invention
The purpose of this invention is to provide a kind of less energy-consumption self-circulation waste disposal plant, its economy, easy, efficient is suitable for the processing of domestic sewage in rural areas by using.
For this reason, the invention provides a kind of less energy-consumption self-circulation waste disposal plant, it is characterized in that, it is comprised of pump sump 3, equalizing tank 2 and sand filter 1, and pump sump has the water-in 7 for the treatment of sewage, from the water return outlet of equalizing tank and pump sump outlet; Equalizing tank has treated water outlet 8, to the outlet of pump sump with from the water return outlet of sand filter; Sand filter has from the entrance of pump sump with to the outlet of equalizing tank; Sand filter is connected in parallel between pump sump and the equalizing tank, pump sump outlet is communicated with the entrance from pump sump of sand filter by reflux pump 6, is provided with only permission between pump sump and the equalizing tank and is exported to pump sump from the vacuum breaker 5 of the water return outlet of equalizing tank from equalizing tank to pump sump; Be provided with for the water distributor that equably sewage is distributed to the sand filter top layer at the top of sand filter; Be provided with for the water collector of collecting through the water after the sand filtration processing in the bottom of sand filter; Sand filter is higher than the height of equalizing tank; The equalizing tank water level is higher than the water level of pump sump; Equalizing tank is provided with the water level that rises for the control water level and surpasses overflow weir 4.
Particularly, sewage water treatment method of the present invention is used for sanitary sewage disposal.
Particularly, sewage water treatment method of the present invention is used for rural domestic sewage treatment.
Preferably, equalizing tank also is provided be used to the water that prevents from entering equalizing tank from sand filter and directly flows out and the pump sump that guarantees to flow into through vacuum breaker continues the dividing plate of circular treatment through overflow weir.
Preferably, pump sump also is provided with for making sewage directly overflow the overflow weir that effluxes when the raw waste water flooding quantity is excessive.
Preferably, the pump-out of reflux pump and Circle ratio positive correlation.
Preferably, be provided with the sand filter blanket with microorganism in the sand filter, the filtrate in the sand filter is made of particle diameter less gravel and the larger gravel of particle diameter.
Preferably, sand filter is respectively equipped with water distribution layer, filtering layer, supporting layer from top to bottom, and water distribution layer is made of particle diameter larger gravel and water distributor; Filtering layer is made of the thinner gravel of removing the solvable or gluey pollutent in the sewage by physical adsorption, precipitation, chemisorption and/or biochemical action.
Preferably, the bottom of sand filter comprises the gravel bed that is made of larger gravel.
Preferably, the water distributor in the sand filter covers the upper layer plane of whole sand filter equably; Water collector is evenly distributed in the bottom of sand filter.
Have obvious difference between the present invention and the prior art: the pollutant removal principle is different, and prior art mainly adopts biological treatment, need to carry out aeration.And the present invention mainly utilizes physics, materialization and/or the biochemical action in filter tank, and pollutent is effectively removed.In addition, technical process is different, and main core cell is the filter tank among the BAF, and sewage enters the filter tank and processes rear directly water outlet; The main core cell of MBR then is the membrane bioreactor reaction tank, sewage after this cell processing by the direct water outlet of membrane filtration.And the main core cell of the present invention is sand filter, and sewage is through water outlet after repeatedly sand filtration is processed.
According to the present invention, design scale is little, is fit to the little characteristics of the country sewage water yield, and capital cost is lower; Unique energy consumption unit is the reflux pump in the pump sump in the present technique, need not the energy consumption of other links such as aeration, and working cost is lower;
For the larger characteristics of country sewage water yield daily variation amplitude, equalizing tank unit by using overflow weir of the present invention is regulated the water yield, has greatly relaxed the water impact load, makes the operation of whole system continuous and effective ground;
Because pollutant load is not high, pollutent is carried out sand filtration process comparatively economy, easy, adopt simultaneously repeatedly circular treatment, guarantee the up to standard of effluent quality;
The unique energy consumption equipment of the present invention is the reflux pump in the equalizing tank, and need not other robots, need not arrange that special technician moves, maintenance management.
The present invention is divided into sand filter, pump sump and equalizing tank, and design scale can be adjusted according to the characteristics of each regional country sewage water yield; Energy consumption equipment only is the reflux pump in the equalizing tank.Therefore capital construction of the present invention and working cost are all lower.
For the larger characteristics of country sewage water yield luffing, the present invention is provided with this unit of equalizing tank.When the water water yield was larger, the liquid level in the equalizing tank rose, and the water after the processing effluxes through overflow weir; Lower even when not having water when the water water yield, then whole system is carried out internal recycle and is processed, and guarantees that all the time the microflora in the sand filter is in moisture state, avoids microbial death, realizes the sustainable operation of whole sand filtration unit.
Because it is comparatively simple with respect to other technologies that sand filtration is processed, for pollutant removal being reduced simultaneously the occupation of land of technique, whole system adopts repeatedly the method for circular treatment, namely draws back behind the water after logical will the processing and the water mixed diluting to sand filter and processes.Circle ratio then should be set according to the water quality of different areas country sewage and the Changing Pattern of the water yield.
Self-con-tained unit is not set among the present invention, only by a reflux pump and overflow weir, realized the flow process of circular treatment → water outlet of sewage water → mixed diluting → repeatedly, whole process need not to arrange that special technician moves, maintenance management, only needs regular visit.
For the unsettled characteristics of the Rural areas sewage water yield, and need not the professional and carry out operation maintenance management, the present invention realizes the circular treatment of sand filter by a reflux pump and water yield automatic-adjusting device (overflow weir) are set.Technical process of the present invention is simple, and the capital construction working cost is cheap; The present invention has the ability of very strong water resistant power load impact, is applicable to the larger Rural areas of amount of inlet water rangeability; Can realize completely automatically continuously processing of control, need not the Operation and Maintenance personnel; The sand filtration that repeatedly circulates is processed, and guarantees the up to standard of effluent quality.
Description of drawings
Fig. 1 is the principle of work schematic diagram according to one way of life waste disposal plant of the present invention;
Fig. 2 is the recirculation system sand filter tank schematic diagram according to one way of life waste disposal plant of the present invention;
Fig. 3 is the equalizing tank schematic diagram according to one way of life waste disposal plant of the present invention;
Fig. 4 is the pump sump schematic diagram according to one way of life waste disposal plant of the present invention;
Fig. 5 is the sand filter schematic diagram according to one way of life waste disposal plant of the present invention.
Fig. 6 is the water distributor schematic diagram according to one way of life waste disposal plant of the present invention.
Fig. 7 is according to the pump sump of one way of life waste disposal plant of the present invention, equalizing tank (water inlet equalizing tank) sectional view.
Embodiment
As shown in Figure 1, waste disposal plant according to the present invention has adopted the aerobic biological filter process that adheres to, and makes microorganism aerobic be attached to filter material surface, forms microbial film, and the absorption degradation organism, to reach the purification purpose.Different from the other biological contact oxidation method, method of the present invention is to allow water inlet and filtrate mixed diluting, and the sewage of processing constantly contacts with microbial film, thereby reaches the purification purpose at the inner constantly circulating filtration of its device.The personnel of need not keep an eye on, and technical process is very simple, are one and fully automatically move the system that disposes of sewage, and unique power is exactly the submersible pump that is positioned at pump sump.
Fig. 2 shows chief component of the present invention and flow process.Main flow process: treatment sewage enters pump sump 3 from water-in 7, with the recirculated water mixed diluting after the processing, is pumped to sand filter 1 by reflux pump 6.In sand filter, equably sewage is distributed to the sand filter top layer by water distributor 9.Collected by water collector 10 in the sand filter bottom through the water after the sand filtration processing, rely on action of gravity to flow into equalizing tank 2, then pass through vacuum breaker 5 and flow into pump sumps 3, so circulation.When the water yield increased, the water level of equalizing tank rose, and began to efflux by water outlet 8 after water level surpasses overflow weir 4.
Equalizing tank as shown in Figure 3, main core design is the perpendicular partition wall 5 in one in overflow weir 4 and the pond.Overflow weir is mainly used in controlling water level.Perpendicular partition wall then plays the effect of communicating vessels, prevents that the water that sand filter enters equalizing tank from directly flowing out through overflow weir, guarantees that its part flows into pump sumps through vacuum breaker 3 and continues circular treatment.When amount of inlet water increased, the water level of equalizing tank rose simultaneously, after liquid level surpasses the height of overflow weir, then began outside draining.Because whole equalizing tank has the effect of second pond, therefore but also stably reaching standard of the SS of water outlet.Because the water level of pump sump is lower than the equalizing tank water level, therefore, the water of equalizing tank flows under the influence of gravity into pump sump, realizes the circular treatment of sewage.
Pump sump as shown in Figure 4.Raw waste water in the septic tank enters into pump sump, with the filtered water mixed diluting of equalizing tank, is pumped to sand filter by reflux pump 2.Safe overflow weir 5 is set in the pump sump equally, and when the raw waste water flooding quantity was excessive, sewage directly overflowed from safe overflow weir and effluxes.The pump-out of reflux pump and Circle ratio positive correlation, namely when the flow of pump was larger, recycle ratio also increased.
Sand filter as shown in Figure 5, sand filter is the main processing unit in this patent, all pollutents are removed in this pond basically.The sand filter water inlet is dispersed in the whole pond uniformly by water distributor, utilizes action of gravity, flows through from top to down with the sand filter blanket of microorganism, collects water outlet by water collector after processing through a series of physics, chemistry and/or biological action.Filtrate main in the sand filter is made of particle diameter less gravel 5 and the larger gravel 6 of particle diameter.Be respectively from top to bottom water distribution layer, filtering layer, supporting layer.Water distribution layer is made of particle diameter larger gravel and water distributor, and the space between large particle diameter gravel is larger, can contact fully with air, better carries out aerobe and processes.Filtering layer then is made of thinner gravel, and mainly by physical adsorption, precipitation, chemisorption, biochemical action is removed the solvable or gluey pollutent in the sewage.The bottom then is made of larger gravel and water collector.Gravel bed plays the support effect to the gravel on upper strata, protects simultaneously water collector, prevents that tiny gravel from entering water collector and resulting in blockage.
Water distributor in the sand filter as shown in Figure 6, according to the size of sand filter, water distributor covers the upper layer plane of whole sand filter equably.Same water collector also is evenly distributed in the bottom of sand filter.
Shown in Fig. 1-2, the flow process of whole technique is by sewage water → mixed diluting → sand filtration processing → water outlet repeatedly circulates.
The setting of the overflow weir in the equalizing tank unit has realized the automatic adjusting of system's water yield, has simple, the sensitive characteristics of control, has effectively solved the unsettled drawback of the country sewage water yield.
The mixed diluting of water has been realized in the pump sump unit, and water flows into pump sump by check valve in the equalizing tank, and continues to pump to sand filter behind the water mixed diluting, realizes the circular treatment of sewage, and treatment effect is better.Safe overflow weir is used for the highest liquid level of control pump sump.
By above disclosed content; those skilled in the art can understand technical conceive of the present invention; thereby can carry out such or such replenishing, modification, replacement, perfect etc., yet, the protection domain that all can fall into appended claims of the present invention done like this.
Claims (10)
1. less energy-consumption self-circulation sewage treatment unit, it is characterized in that, it is comprised of pump sump (3), equalizing tank (2) and sand filter (1), and pump sump has the water-in (7) for the treatment of sewage, from the water return outlet of equalizing tank and pump sump outlet; Equalizing tank has treated water outlet (8), to the outlet of pump sump with from the water return outlet of sand filter; Sand filter has from the entrance of pump sump with to the outlet of equalizing tank; Sand filter is connected in parallel between pump sump and the equalizing tank, pump sump outlet is communicated with the entrance from pump sump of sand filter by reflux pump (6), is provided with only permission between pump sump and the equalizing tank and is exported to pump sump from the vacuum breaker (5) of the water return outlet of equalizing tank from equalizing tank to pump sump; Be provided with for the water distributor that equably sewage is distributed to the sand filter top layer at the top of sand filter; Be provided with for the water collector of collecting through the water after the sand filtration processing in the bottom of sand filter; Sand filter is higher than the height of equalizing tank; The equalizing tank water level is higher than the water level of pump sump; Equalizing tank is provided with the water level that rises for the control water level and surpasses overflow weir (4).
2. waste disposal plant as claimed in claim 1 is characterized in that, is used for sanitary sewage disposal, preferably, is used for rural domestic sewage treatment.
3. such as claim 1 and 2 described waste disposal plants, it is characterized in that, preferably, equalizing tank also is provided be used to the water that prevents from entering equalizing tank from sand filter and directly flows out and the pump sump that guarantees to flow into through vacuum breaker continues the dividing plate of circular treatment through overflow weir.
4. such as one of them described waste disposal plant of claim 1-3, it is characterized in that, preferably, pump sump also is provided with for making sewage directly overflow the overflow weir that effluxes when the raw waste water flooding quantity is excessive.
5. such as one of them described waste disposal plant of claim 1-4, it is characterized in that, preferably, the pump-out of reflux pump and Circle ratio positive correlation.
6. such as one of them described waste disposal plant of claim 1-5, it is characterized in that, preferably, be provided with the sand filter blanket with microorganism in the sand filter, the filtrate in the sand filter is made of particle diameter less gravel and the larger gravel of particle diameter.
7. such as one of them described waste disposal plant of claim 1-6, it is characterized in that, preferably, sand filter is respectively equipped with water distribution layer, filtering layer, supporting layer from top to bottom, and water distribution layer is made of particle diameter larger gravel and water distributor; Filtering layer is made of the thinner gravel of removing the solvable or gluey pollutent in the sewage by physical adsorption, precipitation, chemisorption and/or biochemical action.
8. such as one of them described waste disposal plant of claim 1-7, it is characterized in that, preferably, the bottom of sand filter comprises the gravel bed that is made of larger gravel.
9. such as one of them described waste disposal plant of claim 1-8, it is characterized in that, preferably, the water distributor in the sand filter covers the upper layer plane of whole sand filter equably.
10. such as one of them described waste disposal plant of claim 1-9, it is characterized in that, preferably, water collector is evenly distributed in the bottom of sand filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310007074.3A CN103073152B (en) | 2013-01-09 | 2013-01-09 | Low-energy-consumption processing device for self-circulation sewage |
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| CN201310007074.3A CN103073152B (en) | 2013-01-09 | 2013-01-09 | Low-energy-consumption processing device for self-circulation sewage |
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| CN103073152B CN103073152B (en) | 2014-04-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524830A (en) * | 2014-12-31 | 2015-04-22 | 中建八局第四建设有限公司 | Filter sand delivery device |
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| CN202519125U (en) * | 2012-01-09 | 2012-11-07 | 济南大学 | Synergistic precipitation and biological filter combined reactor |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29608503U1 (en) * | 1996-05-10 | 1996-08-01 | Wehrle-Werk AG, 79312 Emmendingen | Waste water treatment device |
| CN101264982A (en) * | 2008-04-24 | 2008-09-17 | 上海交通大学 | Ecological restoring and maintaining method for landscape water body |
| CN201433155Y (en) * | 2009-07-11 | 2010-03-31 | 兰州交通大学 | Processing and combing device for scattering and discharging domestic sewage |
| KR20110058929A (en) * | 2009-11-27 | 2011-06-02 | 김경하 | Integrated method for treating food waste water, livestock waste water, and night soil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104524830A (en) * | 2014-12-31 | 2015-04-22 | 中建八局第四建设有限公司 | Filter sand delivery device |
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