CN108483815A - A kind of microkinetic is biochemical and deep-bed filtration sewage disposal device - Google Patents

Abstract

Disclose that a kind of microkinetic is biochemical and deep-bed filtration sewage disposal device, including：Grid sand setting unit positioned at sewage disposal device water inlet position；The regulating reservoir being connect with grid sand setting unit, regulating reservoir are used to the sewage through grid sand setting unit being pumped into anaerobic pond；The A/O reactors being connect with anaerobic pond；And filter element, internal flow of the sewage in filter element, wherein filter element is using zeolite and blast furnace slag as filler, for removing some of the contaminants in sewage.

Description

A kind of micro power biochemical and deep bed filtration sewage treatment equipment

technical field

The invention relates to the technical field of environmental protection, and more specifically relates to a decentralized micro-dynamic biochemical and deep-bed filtration sewage treatment equipment.

Background technique

In China's vast rural areas, townships and other areas, which are characterized by dispersal and regionalization, due to the low concentration of population, the sewage collection system cannot be completely covered, and it is necessary to develop sewage treatment equipment suitable for rural areas. However, most of the existing decentralized sewage treatment equipment has a low degree of automation, complicated processes, and complex operations, and cannot achieve unmanned operation. The large sludge output is likely to cause secondary pollution, and it cannot achieve real standard discharge.

Contents of the invention

In view of this, the object of the present invention is to provide a micro-dynamic biochemical and deep-bed filtration sewage treatment equipment with high purification efficiency and low cost.

According to the present invention, a kind of micro-power biochemical and deep bed filtration sewage treatment equipment includes: a grid grit settling unit located at the water inlet part of the sewage treatment equipment; a regulating tank connected with the grid grit settling unit, the The adjustment tank is used to pump the sewage through the grit grit unit into the anaerobic tank; the A/O reactor connected to the anaerobic tank; and the filter unit, the sewage flows inside the filter unit, Wherein, the filter unit uses zeolite and blast furnace slag as fillers to remove some pollutants in the sewage.

Preferably, the filter unit further includes plants planted on the surface of the filter unit, and the organic matters in the sewage are removed through absorption by the roots of the plants.

Preferably, the grid grit chamber includes a grid well and a grit chamber connected in sequence, wherein the grid well is provided with a manual grill, and the opening and closing of the grill can be manually adjusted.

Preferably, the anaerobic tank includes an enhanced sedimentation tank connected in sequence and at least one stage of anaerobic filter tank, wherein the enhanced sedimentation tank is used to realize the solid-liquid separation of the sewage.

Preferably, the inside of the anaerobic filter is provided with combined fillers for increasing the attachment area of microorganisms.

Preferably, the A/O reactor includes multi-stage anoxic zones and aerobic zones, and the multi-stage anoxic zones and aerobic zones are arranged alternately.

Preferably, the anoxic zone and the aerobic zone respectively include a biochemical combination unit arranged inside, and the biochemical combination unit is composed of an aerator and a filler.

Preferably, a ventilation pipe is provided on the top of the A/O reactor, and a blower is connected to one end of the ventilation pipe.

Preferably, the A/O reactor further includes a sludge discharge pipe for discharging the sludge generated in the treatment process of the A/O reactor to the anaerobic tank.

Preferably, the sewage treatment equipment further includes a disinfection unit connected to the filter unit.

The micro-dynamic biochemical and deep-bed filtration sewage treatment equipment provided by the present invention includes a regulating pool, which is used to adjust the water volume of the sewage to be treated, and effectively improve the impact resistance of the sewage treatment equipment; the anaerobic pool removes most of the waste water that can Settling and partially dissolved organic pollutants can reduce the energy consumption of subsequent treatment units; the A/O reactor adopts a multi-point water inlet method, and has undergone multi-stage anoxic and aerobic alternate treatments, and the denitrification rate is high; in addition, the filter unit Using zeolite and blast furnace slag as filler, planting plants on the surface, using metal ions combined with porous adsorption of blast furnace slag, absorption of plant roots, and decomposition of aerobic and anaerobic microbial flora to effectively remove phosphorus, with high purification efficiency and lower cost.

Description of drawings

The above and other objects, features and advantages of the present invention will be more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 shows a schematic structural view of the sewage treatment equipment of the present invention.

Fig. 2 shows a schematic flow chart of the sewage treatment of the present invention.

Detailed ways

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. In the various figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown in the drawings.

In the following, many specific details of the present invention, such as structures, materials, dimensions, processes and techniques of components, are described for a clearer understanding of the present invention. However, the invention may be practiced without these specific details, as will be understood by those skilled in the art.

It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean being directly on another layer or another region, or Other layers or regions are also included between it and another layer or another region. And, if the part is turned over, the layer, one region, will be "below" or "beneath" the other layer, another region.

Fig. 1 shows the structural representation of sewage treatment equipment of the present invention, comprises:

Grill grit settling unit 1, regulating tank 2, anaerobic tank 3, A/O reactor 4, filter unit 5 and disinfection unit 6 at the water inlet of sewage treatment equipment.

The grid grit settling unit 1 includes a grid well 11 and a grit chamber 12. The grid well 11 is used to intercept coarse suspended matter and floating matter in the sewage to be treated, wherein the grid well 11 is also provided with a manual grid 111 , which can realize the opening and closing of the manual adjustment grille. The sewage treated by the grid well 11 enters the grit chamber 12, and the organic solid pollutants and large solid particles are intercepted by the action of the grit chamber, and the sewage treated by the grit chamber 12 enters the regulating pond 2.

The regulating pond 2 is used to balance the water quality and water quantity of the sewage to be treated. The regulating pond 2 also includes a water pump 21. The water pump 21 is arranged at the end of the regulating pond 2, and is connected with the anaerobic pond 3 through a water pump pipe 22, and is used for dissolving the water in the regulating pond 2. The sewage is pumped into the anaerobic tank 3.

The anaerobic tank 3 is used to remove most of the sinkable and partially dissolved organic pollutants in the sewage. The anaerobic tank 3 includes an enhanced sedimentation tank 31 and an anaerobic filter tank 32. The enhanced sedimentation tank 31 is used to achieve solid-liquid separation, and the sewage realizes After solid-liquid separation, the supernatant enters the anaerobic filter tank 32, and the composite filler is arranged inside the anaerobic filter tank 32, which can increase the attachment area of microorganisms and enhance the sewage purification ability. In addition, in a preferred embodiment, the anaerobic tank 3 is provided with a multi-stage anaerobic filter tank 32 to further enhance the sewage purification capability.

The anaerobic tank 3 is connected to the A/O reactor 4, and the A/O reactor 4 includes a multi-stage anoxic zone and an aerobic zone. The anoxic zone and the aerobic zone are provided with a biochemical combination unit, and the biochemical combination unit is composed of an aerator 41 And filler 42 composition. The water of A/O reactor 4 enters the pool at multiple points, and the sewage in the pool flows through the anoxic zone and the aerobic zone in a horizontal push flow, and undergoes multi-stage anoxic and aerobic alternating treatments to complete the degradation of organic matter and the removal of nitrogen. At the same time, the sludge produced in the biological treatment process of the A/O reactor 4 is discharged to the anaerobic tank 3 through the sludge discharge pipe 44 for anaerobic digestion.

The top of the A/O reactor 4 is also provided with a vent pipe, and one end of the vent pipe is connected with a blower 43 to ensure that oxygen is abundant in the A/O reactor.

The filter unit 5 is filled with zeolite, blast furnace slag and gravel, and plants 51 are planted on the surface of the filter unit 5, and the sewage flows inside the filter unit 5. The remaining pollutants in the sewage (organic pollutants, ammonia nitrogen, total nitrogen and Phosphorus) is removed through the filtration and adsorption of fillers inside the filter unit 5, the absorption of plant roots, and the decomposition of aerobic and anaerobic microbial flora, thereby purifying the sewage.

Blast furnace slag is a by-product of ironmaking, and it contains a lot of metal elements such as calcium, magnesium, iron, aluminum, etc., which makes it easy for soluble phosphate to form phosphate precipitation with these metal elements; in addition, the porous structure of blast furnace slag is also for adsorption precipitation Favorable conditions are provided to ensure that phosphorus in sewage can be effectively removed.

The disinfection unit 6 is connected with the filter unit 5, and the disinfection unit 6 uses ultraviolet rays to disinfect the outlet water. At the same time, the equipment is directly connected in series between the water inlet and outlet pipes, and the installation and operation are simple.

Fig. 2 shows a schematic flow chart of the sewage treatment of the present invention.

As shown in Figure 2, the sewage treatment of the present invention includes the following steps: after the rural sewage passes through the grid grit settling unit 1 to cut off the large debris and mud and sand in the sewage, the water volume is adjusted in the regulating tank 2, and the pump is pumped into the anaerobic waste water through the lifting pump. Pool 3, in which most of the sinkable and partially dissolved organic pollutants in the sewage are removed by means of energy-free methods, and then flow into the A/O reactor 4, which enters the pool at multiple points, and is equipped with a biochemical combination The unit undergoes multi-stage anoxic and aerobic alternating treatments to complete the degradation of organic matter and the removal of total nitrogen. The sludge produced in the anoxic and aerobic biological treatment processes is discharged to the anaerobic tank 3 for anaerobic digestion. The effluent from the A/O reactor 4 enters the filter unit 5 to remove some of the remaining pollutants (organic pollutants, ammonia nitrogen and phosphorus) in the sewage, and the effluent is sterilized by the disinfection unit 6 with ultraviolet rays and discharged up to standard.

In summary, the micro-dynamic biochemical and deep-bed filtration sewage treatment equipment provided by the present invention includes a regulating pool, which is used to adjust the water volume of the sewage to be treated, and effectively improve the impact resistance of the sewage treatment equipment; the anaerobic pool removes Most of the sewage can be settled and part of the dissolved organic pollutants can reduce the energy consumption of subsequent treatment units; the A/O reactor adopts a multi-point water inlet method, and has undergone multi-stage anoxic and aerobic alternate treatment, with a high denitrification rate ;At the same time, the A/O reactor is a micro-dynamic structure, which can reduce the power consumption by 30% compared with the traditional A/O reactor; in addition, the filter unit uses zeolite and blast furnace slag as fillers, plants are planted on the surface, and metal ions are combined with blast furnace slag The porous adsorption and the absorption of plant roots, the decomposition of aerobic and anaerobic microbial flora can effectively remove phosphorus, with high purification efficiency and lower cost.

It should be noted that in this article, relational terms such as first and second etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Embodiments according to the present invention are described above, and these embodiments do not describe all details in detail, nor do they limit the invention to only the specific embodiments described. Obviously many modifications and variations are possible in light of the above description. This description selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and its modification on the basis of the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (10)

1. A kind of sewage treatment equipment, is characterized in that, comprises: The grid desilting unit located at the water inlet part of the sewage treatment equipment; A regulating tank connected to the grid grit settling unit, the regulating tank is used to pump the sewage through the grid grit settling unit into the anaerobic tank; an A/O reactor connected to the anaerobic tank; and a filter unit, the sewage flows inside the filter unit, Wherein, the filter unit uses zeolite, blast furnace slag and gravel as fillers to remove some pollutants in the sewage. 2. The sewage treatment equipment according to claim 1, wherein the filter unit further comprises plants planted on the surface of the filter unit, and the organic matter in the sewage is removed through absorption by the roots of the plants. 3. The sewage treatment equipment according to claim 1, characterized in that, the grid grit settling unit comprises a grid well and a grit chamber connected in sequence, wherein the grid well is provided with a manual grid, which can be Manually adjust the opening and closing of the grille. 4. sewage treatment equipment according to claim 1, is characterized in that, described anaerobic tank comprises the strengthened settling tank connected in sequence and at least one level of anaerobic filter tank, wherein, described strengthened settling tank is used to realize described solid-liquid separation of wastewater. 5. The sewage treatment equipment according to claim 4, characterized in that, the inside of the anaerobic filter tank is provided with combined fillers for increasing the attachment area of microorganisms. 6. The sewage treatment equipment according to claim 1, wherein the A/O reactor comprises multi-stage anoxic zones and aerobic zones, and the multi-stage anoxic zones and aerobic zones are arranged alternately. 7. The sewage treatment equipment according to claim 6, characterized in that, the anoxic zone and the aerobic zone respectively include a biochemical combination unit arranged inside, and the biochemical combination unit is composed of an aerator and a filler . 8 . The sewage treatment equipment according to claim 1 , wherein a ventilation pipe is arranged on the top of the A/O reactor, and a blower is connected to one end of the ventilation pipe. 9. The sewage treatment equipment according to claim 1, further comprising a sludge discharge pipe for discharging the sludge generated in the treatment process of the A/O reactor to the anaerobic tank. 10. The sewage treatment equipment according to claim 1, further comprising a disinfection unit connected to the filter unit.