CN209957527U

CN209957527U - Domestic sewage treatment system

Info

Publication number: CN209957527U
Application number: CN201920699136.4U
Authority: CN
Inventors: 黄海
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-01-17
Anticipated expiration: 2029-05-16

Abstract

The utility model provides a domestic sewage treatment system, it includes elementary rose box, leading filter, water pump, quartz sand filter, activated carbon filter and micro-filtration membrane filter. The domestic sewage treatment system adopts the primary filter box to carry out mud-water separation treatment in sewage at the preceding stage, and three-layer filter screen in the primary filter box carries out filtration separation step by step to sewage, and the water separated out through the primary filter box is carried out deoiling, edulcoration, turbidity removal, color removal, odor removal, degerming and the like through the prefilter, the quartz sand filter, the activated carbon filter and the microfiltration membrane filter in proper order, and the water discharged from the microfiltration membrane filter is treated purified water which can be recycled as reclaimed water. The domestic sewage treatment system has the advantages of simple process flow, convenient control, less selected equipment and small overall occupied area, can be directly arranged anywhere where sewage is generated, and is very suitable for occasions where large-scale sewage treatment is not convenient to carry out, such as villages, towns and rural areas.

Description

Domestic sewage treatment system

Technical Field

The utility model relates to a sewage treatment system, in particular to a small-sized domestic sewage treatment system suitable for occasions such as villages, towns and villages, which belongs to the technical field of sewage treatment equipment.

Background

With the rapid development of social economy, the problem of water environment pollution is increasingly serious, and the random discharge of domestic sewage can destroy the water environment. In order to reduce the pollution of domestic sewage to the environment and improve the recovery rate of water resources, at present, large-scale sewage treatment plants are generally arranged in cities to carry out centralized treatment on the domestic sewage, and then the domestic sewage is discharged into rivers or is recycled for the second time. However, in many villages and towns and rural areas, due to limited expenditure and dispersed living of people, it is difficult to lay sewage pipes for centralized treatment, and it is impossible to perform centralized treatment on domestic sewage, so most domestic sewage and fecal sewage in villages and towns are still in a state of being discharged at will, which not only wastes water resources, but also deteriorates local water environment, causes peculiar smell of sewage to spread, flies to breed, easily spreads diseases, and affects the living quality of residents.

Therefore, it is necessary to develop a small-sized domestic sewage treatment system which can be used independently to improve the sewage treatment conditions in the rural areas and the towns.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a small-size domestic sewage treatment system, this system area is little, and process flow is simple, can directly produce the place at sewage and set up the use everywhere, is particularly suitable for being used for the occasion that extensive sewage centralized processing is not convenient for develop such as rural area of villages and towns.

The utility model discloses the concrete technical scheme who takes as follows:

a domestic sewage treatment system comprises a primary filter box, a pre-filter, a water pump, a quartz sand filter, an activated carbon filter and a microfiltration membrane filter.

The primary filter box is a box body with an upper opening, a water inlet pipe which is horizontally and vertically arranged is arranged close to the right position above the opening of the box body, and the lower side of a pipeline of the water inlet pipe is connected with a plurality of spray headers which spray downwards; three layers of stainless steel filter screens which are arranged in parallel at intervals are erected below the water inlet pipe in the box body, the mesh number of the three layers of filter screens is increased from the upper layer to the lower layer step by step, the three layers of filter screens are obliquely arranged, the filter screens obliquely extend from the right box wall to the left lower side, and a certain distance is arranged between the left edge of each filter screen and the left box wall to form a sludge falling gap; a water receiving tank and a sludge tank are respectively arranged at the lower part in the box body, wherein the water receiving tank is arranged under the lowest layer of filter screen, and the sludge tank is arranged under the lowest sludge falling gap; the side surface of the sludge tank is provided with a sludge outlet extending out of the box body, and the bottom surface of the sludge tank is provided with a precipitated sludge outlet extending out of the bottom surface of the box body; the side of the water receiving tank is provided with a water outlet extending out of the box body.

The water outlet of the water receiving tank is connected with the inlet of the pre-filter through a pipeline, the outlet of the pre-filter is connected with the inlet of the water pump through a pipeline, the outlet of the water pump is connected with the inlet of the quartz sand filter through a pipeline, the outlet of the quartz sand filter is connected with the inlet of the activated carbon filter through a pipeline, the outlet of the activated carbon filter is connected with the inlet of the micro-filtration membrane filter through a pipeline, and the outlet of the micro-filtration membrane filter is the purified water outlet.

Furthermore, the included angle theta between the three layers of filter screens and the horizontal plane is 15-35 degrees. In the three-layer filter screen, the superiors filter screen adopts 20 mesh filter screen, and the intermediate level filter screen adopts 50 mesh filter screen, and the lower floor's filter screen adopts 100 mesh filter screen.

Further, the three-layer filter screen all is equipped with supporting framework, and each layer filter screen is separated into a plurality of fritters with whole filter screen by supporting framework respectively to prevent that the filter screen area from taking place the damage easily when too big using.

Furthermore, the microfiltration membrane filter adopts a tubular membrane or a hollow fiber membrane, and the pore diameter of the membrane pore is 0.1-1 μm.

The utility model discloses a domestic sewage treatment system adopts elementary rose box to carry out mud-water separation in sewage at the preceding stage, three-layer filter screen by in the elementary rose box carries out filtering separation step by step to sewage, the mud that each layer filter screen separates can follow the automatic gliding of filter screen of slope and fall into the sludge impoundment of below from mud whereabouts breach, the mud that upper strata filter screen separates can not flow into in the lower floor's filter screen and cause the influence to its work, the water that separates through elementary rose box passes through leading filter again in proper order, quartz sand filter, activated carbon filter and micro-filtration membrane filter deoil, the edulcoration, remove turbid, remove the look, remove the flavor, handle the back such as degerming, be from micro-filtration membrane filter exhaust water promptly for handling good water purification, can carry out the retrieval and utilization. The domestic sewage treatment system has the advantages of simple process flow, convenient control, less selected equipment and small overall occupied area, can be directly arranged anywhere where sewage is generated, and is very suitable for occasions where large-scale sewage treatment is not convenient to carry out, such as villages, towns and rural areas.

Drawings

FIG. 1 is a schematic view of the overall structure of the domestic sewage treatment system.

Fig. 2 is a top view of the primary filter box of fig. 1.

In the figure: 1-primary filter box, 1.1-box, 1.2-sludge outlet, 1.3-precipitated sludge outlet, 1.4-water outlet, 2-prefilter, 3-water pump, 4-quartz sand filter, 5-activated carbon filter, 6-microfiltration membrane filter, 6.1-purified water outlet, 7-water inlet pipe, 7.1-spray head, 8-filter screen, 8.1-support framework, 9-sludge falling gap, 10-water receiving tank and 11-sludge tank.

Detailed Description

The following describes the embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1-2, the domestic sewage treatment system comprises a primary filter tank 1, a pre-filter 2, a water pump 3, a quartz sand filter 4, an activated carbon filter 5 and a microfiltration membrane filter 6.

The primary filter box 1 is a box body 1.1 with an upper opening, a water inlet pipe 7 which is horizontally and vertically arranged is arranged close to the right above the opening of the box body 1.1, and the lower side of a pipeline of the water inlet pipe 7 is connected with a plurality of spray headers 7.1 which spray downwards; inside stainless steel filter screen 8 of having erect the parallel interval arrangement of three-layer in the below of inlet tube 7 of box 1.1, the mesh number of three-layer filter screen 8 increases step by step from upper strata to lower floor, and the superiors' filter screen 8 adopts 20 meshes of filter screen, and middle level filter screen 8 adopts 50 meshes of filter screen, and the filter screen 8 of lower floor adopts 100 meshes of filter screen. The three layers of filter screens 8 are all obliquely arranged, the included angle theta between each filter screen 8 and the horizontal plane is 15-35 degrees, the filter screens 8 obliquely extend from the right tank wall to the left lower side, and a certain distance is reserved between the left edge of each filter screen 8 and the left tank wall to form a sludge falling gap 9; three-layer filter screen 8 all is equipped with supporting framework 8.1, and each layer filter screen 8 is separated into a plurality of fritters by supporting framework 8.1 with whole filter screen respectively. A water receiving tank 10 and a sludge tank 11 are respectively arranged at the lower part in the box body 1.1, wherein the water receiving tank 10 is arranged under the lowest layer of filter screen 8, and the sludge tank 11 is arranged under the lowest sludge falling gap 9; the side surface of the sludge tank 11 is provided with a sludge outlet 1.2 extending out of the box body 1.1, and the bottom surface of the sludge tank 11 is provided with a precipitated sludge outlet 1.3 extending out of the bottom surface of the box body 1.1; the side of the water receiving tank 10 is provided with a water outlet 1.4 extending out of the box body 1.1.

The water outlet 1.4 of the water receiving tank 10 is connected with the inlet of the pre-filter 2 through a pipeline, the outlet of the pre-filter 2 is connected with the inlet of the water pump 3 through a pipeline, the outlet of the water pump 3 is connected with the inlet of the quartz sand filter 4 through a pipeline, the outlet of the quartz sand filter 4 is connected with the inlet of the activated carbon filter 5 through a pipeline, the outlet of the activated carbon filter 5 is connected with the inlet of the micro-filtration membrane filter 6 through a pipeline, and the outlet of the micro-filtration membrane filter 6 is the purified water outlet 6.1. The microfiltration membrane filter 6 adopts a tubular membrane or a hollow fiber membrane, and the pore diameter of the membrane pore is 0.1-1 μm.

When the domestic sewage treatment system is used, sewage is uniformly sprayed on an upper filter screen 8 of a primary filter box 1 from a spray head 7.1 of a water inlet pipe 7 and sequentially falls into a water receiving tank 10 below through three filter screens 8 from top to bottom, sludge with the granularity larger than 0.85mm is separated by the uppermost filter screen 8, sludge with the granularity of 0.3-0.85 mm is separated by the middle filter screen 8, and sludge with the granularity of 0.15-0.3 mm is separated by the lowermost filter screen 8. Because three-layer filter screen 8 all adopts the slope setting and is equipped with mud whereabouts breach 9, therefore the mud that each layer filter screen 8 separated can follow the automatic gliding of the filter screen 8 of slope and fall into the sludge impoundment 11 of below from mud whereabouts breach 9, and the mud that upper filter screen 8 separated can not flow into and cause the influence to its work in the filter screen 8 of lower floor. In the sludge tank 11, the sludge slurry in the upper layer can be discharged to the outside through the sludge discharge port 1.2, and the sludge settled in the lower layer can be discharged to the outside through the settled sludge discharge port 1.3. The water collected in the water receiving tank 10 is pumped out by the water pump 3, and is subjected to coarse filtration by the pre-filter 2 before flowing into the water pump 3, the impurities such as residual fine silt particles, oil stains and the like in the water are firstly filtered, and then the water is pumped into the quartz sand filter 4 to intercept suspended matters, organic matters, colloidal particles, microorganisms, chlorine, partial heavy metal ions and the like in the water so as to reduce the turbidity and the chromaticity of the water body and purify the water quality, then the water is sent to an active carbon filter 5 to absorb peculiar smell, organic matters, colloid, iron, residual chlorine and the like in the water body, further reduce the turbidity and the chroma of the water body, purify the water quality, finally the water is sent to a micro-filtration membrane filter 6, entrapping suspended matters, bacteria, high molecular weight colloids and other substances remained in the water body, and taking the water discharged from the microfiltration membrane filter 6 as treated purified water which can be recycled as reclaimed water.

The above-mentioned drawings are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications or equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a domestic sewage treatment system which characterized by: the domestic sewage treatment system comprises a primary filter box, a pre-filter, a water pump, a quartz sand filter, an activated carbon filter and a microfiltration membrane filter;

the primary filter box is a box body with an upper opening, a water inlet pipe which is horizontally and vertically arranged is arranged close to the right position above the opening of the box body, and the lower side of a pipeline of the water inlet pipe is connected with a plurality of spray headers which spray downwards; three layers of stainless steel filter screens which are arranged in parallel at intervals are erected below the water inlet pipe in the box body, the mesh number of the three layers of filter screens is increased from the upper layer to the lower layer step by step, the three layers of filter screens are obliquely arranged, the filter screens obliquely extend from the right box wall to the left lower side, and a certain distance is arranged between the left edge of each filter screen and the left box wall to form a sludge falling gap; a water receiving tank and a sludge tank are respectively arranged at the lower part in the box body, wherein the water receiving tank is arranged under the lowest layer of filter screen, and the sludge tank is arranged under the lowest sludge falling gap; the side surface of the sludge tank is provided with a sludge outlet extending out of the box body, and the bottom surface of the sludge tank is provided with a precipitated sludge outlet extending out of the bottom surface of the box body; a water outlet extending out of the outer side of the box body is arranged on the side surface of the water receiving tank;

2. The domestic sewage treatment system of claim 1, wherein: the included angle theta between the three layers of filter screens and the horizontal plane is 15-35 degrees.

3. The domestic sewage treatment system of claim 1, wherein: in the three-layer filter screen, the superiors filter screen adopts 20 mesh filter screen, and the intermediate level filter screen adopts 50 mesh filter screen, and the lower floor's filter screen adopts 100 mesh filter screen.

4. The domestic sewage treatment system of claim 1, wherein: the three-layer filter screen all is equipped with the support chassis, and each layer filter screen is separated into a plurality of fritters with whole filter screen by the support chassis respectively.

5. The domestic sewage treatment system of claim 1, wherein: the microfiltration membrane filter adopts a tubular membrane or a hollow fiber membrane, and the pore diameter of the membrane pore is 0.1-1 mu m.