Skid-mounted integrated sewage treatment equipment

Abstract

The invention discloses skid-mounted integrated sewage treatment equipment which comprises an adjusting tank, an anoxic tank, a membrane biological reaction tank, a separation tank, a first circulation assembly, a membrane biological reaction assembly and a mud-water separation assembly, the anoxic tank comprises an anaerobic cavity and an anoxic cavity; the membrane biological reaction tank comprises an aerobic cavity and a membrane biological reaction treatment cavity; the separation tank comprises a water storage cavity and a sludge storage cavity; the separation tank is positioned on one side of the membrane biological reaction treatment cavity; the regulating tank, the anaerobic cavity, the anoxic cavity, the aerobic cavity and the membrane biological reaction treatment cavity are connected in sequence; the membrane biological reaction treatment cavity is respectively connected with the water storage cavity and the mud storage cavity through the mud-water separation assembly; one end of the first circulating assembly is arranged in the aerobic cavity, and the other end is connected with the anaerobic cavity; the membrane biological reaction assembly is arranged in the membrane biological reaction treatment cavity. A part of water flows back to the anaerobic cavity for internal circulation through the first circulation assembly, the purpose of denitrification is achieved, meanwhile, mud-water separation is achieved through the mud-water separation assembly, and the sludge drying time can be greatly shortened.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and in particular relates to a skid-mounted integrated sewage treatment equipment. Background Art

[0002] The protection of water resources is essential. Integrated sewage treatment equipment can expand the water resources available to people. Now, most of the sewage is treated by skid-mounted integrated sewage treatment equipment. Skid-mounted integrated sewage treatment equipment solves the problem that separate sewage treatment equipment is difficult to inspect and maintain. The construction volume of skid-mounted integrated sewage treatment equipment is greatly reduced, and it can be moved to an empty space for use as needed, which improves the convenience of use and production.

[0003] Common skid-mounted integrated sewage treatment equipment lacks a multi-stage circulation structure, which is not conducive to denitrification reaction. The sewage treatment effect needs to be improved. At the same time, it lacks a mud-water separation structure and treats sludge through gravity concentration and natural drying. While water resources are wasted, there is a problem that work efficiency needs to be improved.

[0004] Therefore, the existing skid-mounted integrated sewage treatment equipment lacks a multi-stage circulation structure, and the sewage treatment effect needs to be improved. At the same time, the lack of a mud-water separation structure causes waste of water resources, and there is a problem that the work efficiency needs to be improved. These problems urgently need to be solved to improve the usage scenario. Summary of the Invention

[0005] In order to solve the above problems, the present invention discloses a skid-mounted integrated sewage treatment equipment, comprising: a regulating tank, an anoxic tank, a membrane biological reaction tank, a separation tank, a first circulation component, a membrane biological reaction component and a mud-water separation component;

[0006] The anoxic tank includes an anaerobic chamber and an anoxic chamber;

[0007] The membrane biological reaction tank includes an aerobic chamber and a membrane biological reaction treatment chamber;

[0008] The separation tank includes a water storage chamber and a mud storage chamber; the separation tank is located on one side of the membrane biological reaction treatment chamber;

[0009] The regulating tank, anaerobic chamber, anoxic chamber, aerobic chamber and membrane biological reaction treatment chamber are connected in sequence;

[0010] The membrane biological reaction treatment chamber is connected to the water storage chamber and the mud storage chamber respectively through the mud-water separation component;

[0011] One end of the first circulation component is arranged in the aerobic chamber, and the other end is connected to the anaerobic chamber;

[0012] The membrane bioreactor component is arranged in the membrane bioreactor processing chamber.

[0013] Furthermore, it also includes: skid-mounted box shell, inspection port, manure storage tank and clean water tank;

[0014] The manure storage tank, regulating tank, anoxic tank, membrane biological reaction tank, clean water tank and separation tank are sequentially arranged in the outer shell of the skid-mounted box;

[0015] An inspection port is provided on the top of the skid-mounted box shell;

[0016] Multiple manure storage tank outlets are connected to the regulating tank;

[0017] The clear water tank is connected to the membrane bioreactor treatment chamber via a membrane bioreactor assembly;

[0018] A ventilation pipe is provided on the top of the manure storage tank, and a plurality of cleaning openings are equidistantly installed on the top of the manure storage tank.

[0019] Furthermore, an inclined primary filtration component is provided inside the regulating tank;

[0020] The primary filter assembly includes a fixed frame and a grid filter plate;

[0021] A grid filter plate is installed in the middle of the fixing frame.

[0022] Furthermore, a micro-oxygen component is provided in the anoxic chamber;

[0023] The micro-oxygen assembly includes a mounting strip, an oxygen enrichment bubble head, a first air pump and a first connecting pipe;

[0024] The bottom of the anoxic chamber is connected to a mounting bar;

[0025] A plurality of oxygen-enhancing bubble heads are evenly arranged on the top of the mounting bar;

[0026] A first air pump is installed on the top of the skid-mounted box shell;

[0027] The first air pump is connected to the oxygen enrichment bubble head through a first connecting pipe.

[0028] Furthermore, an oxygen enrichment component is provided in the aerobic chamber;

[0029] The oxygen enrichment component includes a microporous aeration plate, a second air pump and a second connecting pipe;

[0030] The aerobic chamber is internally connected to a plurality of microporous aeration disks;

[0031] A second air pump is installed on the top of the skid-mounted box shell;

[0032] The second air pump is connected to the microporous aeration disk through a second connecting pipe.

[0033] Furthermore, the first circulation component includes a first circulation pump and a first circulation pipe;

[0034] A first circulation pump is provided in the aerobic chamber;

[0035] The first circulation pump is connected to a first circulation pipe, and the first circulation pipe is connected to the anaerobic chamber.

[0036] Furthermore, the membrane bioreactor assembly includes a membrane bioreactor membrane, a clean water pump and a fourth connecting pipe;

[0037] A membrane bioreactor membrane is provided in the membrane bioreactor treatment chamber, and a fixing plate is provided on the side wall;

[0038] The clean water pump is mounted on a fixed plate;

[0039] The clean water pump is connected to the membrane bioreactor membrane through a fourth connecting pipe, and the water outlet of the clean water pump is located above the clean water tank.

[0040] Furthermore, the mud-water separation assembly includes a sludge pump, an extrusion separation cylinder and a third connecting pipe;

[0041] A sludge pump is installed inside the membrane biological reaction treatment chamber;

[0042] An extrusion separation cylinder is installed at the upper end of the water storage chamber; the extrusion separation cylinder is in a truncated cone shape;

[0043] The sludge pump is connected to the extrusion separation cylinder through a third connecting pipe.

[0044] Furthermore, the mud-water separation component further comprises: a spiral extrusion blade, a drive motor, a water hole and a discharge port;

[0045] The extrusion separation cylinder is connected to a spiral extrusion blade via a bearing; the diameter of the spiral extrusion blade gradually decreases from left to right;

[0046] A driving motor is installed at one end of the spiral extrusion blade;

[0047] A plurality of water-permeable holes are provided at the bottom of the extrusion separation cylinder, and a discharge port is provided at one end of the extrusion separation cylinder, and the discharge port is located above the mud storage cavity.

[0048] Furthermore, it also includes: a second circulation component;

[0049] One end of the second circulation component is arranged in the water storage chamber, and the other end is connected to the anaerobic chamber;

[0050] The second circulation assembly includes a second circulation pump and a second circulation pipe;

[0051] A second circulation pump is installed inside the water storage chamber;

[0052] The second circulation pump is connected to the anaerobic chamber through a second circulation pipe.

[0053] Compared with the prior art, the embodiments of the present invention have at least the following advantages:

[0054] 1. A portion of the water is returned to the anaerobic chamber for internal circulation through the first circulation component to achieve the purpose of denitrification and improve the sewage treatment effect. At the same time, the mud-water separation component is used to achieve mud-water separation, which can greatly shorten the sludge drying time and improve the treatment efficiency. The water separated from the sludge is circulated through the second circulation component to avoid the waste of water resources. This solves the problem that the common skid-mounted integrated sewage treatment equipment lacks a multi-stage circulation structure, which is not conducive to denitrification reaction and the sewage treatment effect needs to be improved. At the same time, the lack of a mud-water separation structure causes the sludge to be treated by gravity concentration and natural drying, resulting in water resources wasted and the work efficiency needs to be improved.

[0055] 2. The front end of the first circulation pump is connected to a first circulation pipe, and the left end of the first circulation pipe is connected to the upper end of the anaerobic chamber near the front side. Start the first circulation pump to return part of the water to the anaerobic chamber for internal circulation to achieve the purpose of denitrification and further improve the sewage treatment effect. Start the sludge pump to transport the sludge in the membrane biological reaction treatment chamber to the extrusion separation cylinder. Start the drive motor to drive the spiral extrusion blade to rotate, and cooperate with the sludge pump to separate the water in the process of transporting the sludge to the right and flow it into the water storage chamber. The dehydrated sludge is transported to the sludge storage chamber through the discharge port. Compared with natural drying, it can greatly shorten the drying time of the sludge and improve the treatment efficiency. Start the second circulation pump to circulate the water separated from the sludge to avoid waste of water resources.

[0056] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0058] Figure 1 It shows a schematic diagram of the three-dimensional structure of a skid-mounted integrated sewage treatment equipment according to an embodiment of the present invention;

[0059] Figure 2The internal structure of the skid-mounted integrated sewage treatment equipment according to the embodiment of the present invention is shown. Figure 1 ;

[0060] Figure 3 A schematic diagram of the structure of a manure storage tank according to an embodiment of the present invention is shown;

[0061] Figure 4 The internal structure of the skid-mounted integrated sewage treatment equipment according to the embodiment of the present invention is shown. Figure 2 ;

[0062] Figure 5 The internal structure of the skid-mounted integrated sewage treatment equipment according to the embodiment of the present invention is shown. Figure 3 ;

[0063] Figure 6 A schematic structural diagram of a primary filter assembly according to an embodiment of the present invention is shown;

[0064] Figure 7 A schematic structural diagram of a micro-oxygen assembly according to an embodiment of the present invention is shown;

[0065] Figure 8 A schematic structural diagram of an oxygen enrichment component according to an embodiment of the present invention is shown;

[0066] Figure 9 It shows a schematic structural diagram of a first circulation component according to an embodiment of the present invention;

[0067] Figure 10 A schematic structural diagram of a membrane bioreactor assembly according to an embodiment of the present invention is shown;

[0068] Figure 11 It shows a schematic structural diagram of a mud-water separation assembly according to an embodiment of the present invention;

[0069] Figure 12 A schematic diagram of the internal structure of an extrusion separation cylinder according to an embodiment of the present invention is shown;

[0070] Figure 13 A schematic structural diagram of a second circulation component according to an embodiment of the present invention is shown.

[0071] Figure numerals: 1, skid-mounted housing; 2, inspection port; 3, manure storage tank; 4, regulating tank; 5, primary filtration assembly; 6, anoxic tank; 7, anaerobic chamber; 8, anoxic chamber; 9, micro-aerobic assembly; 10, membrane bioreactor; 11, aerobic chamber; 12, membrane bioreactor treatment chamber; 13, oxygen enrichment assembly; 14, first circulation assembly; 15, fixed plate; 16, membrane bioreactor assembly; 17, clear water tank; 18, separation tank; 19, water storage chamber; 20, mud storage chamber; 21, mud-water separation assembly; 22, second circulation assembly; 23, ventilation pipe; 24, cleaning port; 501, fixed frame; 502, grid filter plate; 901, installation Strip; 902, oxygenation bubble head; 903, first air pump; 904, first connecting pipe; 1301, microporous aeration disk; 1302, second air pump; 1303, second connecting pipe; 1401, first circulation pump; 1402, first circulation pipe; 1601, membrane bioreactor membrane; 1602, clean water pump; 1603, fourth connecting pipe; 2101, sludge pump; 2102, extrusion separation cylinder; 2103, third connecting pipe; 2104, spiral extrusion blade; 2105, drive motor; 2106, water permeable hole; 2107, discharge port; 2201, second circulation pump; 2202, second circulation pipe. DETAILED DESCRIPTION

[0072] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0073] like Figure 1 As shown, the present invention proposes a skid-mounted integrated sewage treatment equipment, comprising: a regulating tank 4, an anoxic tank 6, a membrane biological reactor 10 (MBR tank), a separation tank 18, a first circulation component 14, a second circulation component 22, a membrane biological reactor component 16 and a mud-water separation component 21;

[0074] like Figure 2 As shown, the right end of the regulating tank 4 is connected to the anoxic tank 6, the right side of the anoxic tank 6 is connected to the membrane biological reaction tank 10, and the separation tank 18 is installed at the rear end position on the right side of the membrane biological reaction tank 10;

[0075] like Figure 4 As shown, the anoxic tank 6 includes an anaerobic chamber 7 arranged on the left side of the interior and an anoxic chamber 8 arranged on the right side of the interior;

[0076] The membrane biological reaction tank 10 includes an aerobic chamber 11 arranged on the left side of the interior and a membrane biological reaction treatment chamber 12 arranged on the right side of the interior;

[0077] The separation tank 18 includes a water storage chamber 19 on the left side thereof and a mud storage chamber 20 on the right side thereof; the separation tank 18 is located on the right side of the membrane biological reaction treatment chamber 12;

[0078] The regulating tank 4, anaerobic chamber 7, anoxic chamber 8, aerobic chamber 11 and membrane biological reaction treatment chamber 12 are connected in sequence from left to right through lifting pumps and pipelines;

[0079] The membrane biological reaction treatment chamber 12 is connected to the water storage chamber 19 and the mud storage chamber 20 respectively through the mud-water separation component 21;

[0080] like Figure 5 As shown, one end of the first circulation component 14 is disposed inside the aerobic chamber 11 near the front end, and the other end is connected to the anaerobic chamber 7;

[0081] One end of the second circulation component 22 is disposed at the rear end of the water storage chamber 19, and the other end is connected to the anaerobic chamber 7;

[0082] The membrane bioreactor assembly 16 is disposed in the membrane bioreactor treatment chamber 12 .

[0083] Regulating tank 4, used to balance water volume and adjust water quality;

[0084] Anoxic tank 6, used for anaerobic and anoxic treatment;

[0085] Anaerobic chamber 7, used to create an oxygen-free environment for sewage treatment using anaerobic bacteria;

[0086] Anoxic chamber 8 is used to create an anoxic environment and mainly performs denitrification treatment through denitrifying bacteria;

[0087] Membrane biological reactor 10, used for sewage treatment by combining membrane separation and biological treatment;

[0088] Aerobic chamber 11, used for sewage treatment by aerobic bacteria;

[0089] Membrane biological reaction treatment chamber 12, used for membrane separation and microbial treatment of sewage;

[0090] A first circulation component 14 is used to circulate sewage;

[0091] Membrane bioreactor assembly 16, used for performing membrane bioreactor;

[0092] Separation tank 18, for solid-liquid separation;

[0093] A water storage chamber 19, for storing water;

[0094] The mud storage chamber 20 is used to store the separated mud;

[0095] Mud and water separation component 21, used for separating mud and water;

[0096] The second circulation component 22 is used to circulate sewage.

[0097] like Figure 1 As shown, in some embodiments, the skid-mounted integrated sewage treatment equipment further includes: a skid-mounted housing 1, an inspection port 2, a feces storage tank 3 and a clean water tank 17;

[0098] The manure storage tank 3, regulating tank 4, anoxic tank 6, membrane biological reactor 10, clean water tank 17 and separation tank 18 are sequentially arranged in the skid-mounted housing 1; the clean water tank 17 and separation tank 18 are arranged side by side on the right side of the membrane biological reactor 10;

[0099] The top of the skid-mounted box shell 1 is provided with an inspection port 2 near the left and right ends;

[0100] A plurality of manure storage tanks 3 are installed at the left end of the inner side of the skid-mounted box shell 1, and the right end outlets of the plurality of manure storage tanks 3 are connected to the regulating tank 4;

[0101] A clear water tank 17 is connected to the front end of the right side of the membrane bioreactor tank 10. The clear water tank 17 is connected to the membrane bioreactor treatment chamber 12 via a membrane bioreactor assembly 16.

[0102] like Figure 3 As shown, a ventilation pipe 23 is provided at the top of the manure storage tank 3 near the left end, and a plurality of cleaning openings 24 are equidistantly installed at the middle position of the top of the manure storage tank 3 for easy cleaning.

[0103] The skid-mounted box shell 1 serves as external protection;

[0104] Inspection port 2, used for maintenance;

[0105] Septic tank 3, used for preliminary treatment of sewage;

[0106] The clean water tank 17 is used to receive clean water.

[0107] See also Figure 6 In some embodiments, an inclined primary filter assembly 5 is provided inside the regulating tank 4;

[0108] The primary filter assembly 5 includes a fixing frame 501 and a grid filter plate 502;

[0109] A fixed frame 501 is provided in the middle of the regulating tank 4 , and a grid filter plate 502 is installed in the middle of the fixed frame 501 . The grid filter plate 502 can filter larger impurities to avoid clogging subsequent pipelines.

[0110] See also Figure 7 In some embodiments, a micro-oxygen component 9 is provided inside the anoxic chamber 8 near the left end;

[0111] The micro-oxygen assembly 9 includes a mounting strip 901, an oxygen-enhancing bubble head 902, a first air pump 903, and a first connecting pipe 904;

[0112] A mounting bar 901 is connected to the bottom of anoxic chamber 8, near the left end. Several oxygen-enhancing bubble heads 902 are evenly distributed on top of mounting bar 901. A first air pump 903 is installed near the center of the top of skid-mounted housing 1. First air pump 903 is connected to oxygen-enhancing bubble heads 902 via first connecting pipes 904. When first air pump 903 is activated, oxygen is pumped through first connecting pipe 904 to oxygen-enhancing bubble heads 902, creating a microaerobic environment. Facultative microorganisms convert organic nitrogen in the wastewater into ammonia nitrogen. They also use the organic carbon source as an electron donor to convert NO₃-N and NO₂-N into N₂.

[0113] See also Figure 8 In some embodiments, an oxygen enrichment component 13 is provided in the middle of the aerobic chamber 11;

[0114] The oxygen enrichment component 13 includes a microporous aeration plate 1301, a second air pump 1302, and a second connecting pipe 1303;

[0115] Multiple microporous aeration discs 1301 are connected to the center of aerobic chamber 11. A second air pump 1302 is installed at the top of skid-mounted housing 1, near the right end of first air pump 903. Second air pump 1302 is connected to microporous aeration discs 1301 via a second connecting pipe 1303. When second air pump 1302 is activated, a large amount of oxygen is delivered to microporous aeration discs 1301 via second connecting pipe 1303. Oxygen is evenly released through the micropores of aeration discs 1301, creating an oxygen-rich environment. Sewage treatment is completed by autotrophic bacteria, which utilize inorganic carbon sources produced by the decomposition of organic matter or carbon dioxide in the air as nutrients to convert ammonia nitrogen in the sewage into NO2-N and NO3-N.

[0116] See also Figure 9 In some embodiments, the first circulation component 14 includes a first circulation pump 1401 and a first circulation pipe 1402;

[0117] A first circulation pump 1401 is installed near the front end of aerobic chamber 11. A first circulation pipe 1402 is connected to the front end of first circulation pump 1401. The left end of first circulation pipe 1402 is connected to the upper end of anaerobic chamber 7, near the front. Activating first circulation pump 1401 returns a portion of the water to anaerobic chamber 7 for internal circulation, achieving denitrification and further improving wastewater treatment efficiency.

[0118] See also Figure 10In some embodiments, the membrane bioreactor assembly 16 includes a membrane bioreactor membrane 1601 , a clean water pump 1602 , and a fourth connecting pipe 1603 ;

[0119] A membrane bioreactor membrane 1601 is provided at the right end of the membrane bioreactor treatment chamber 12 near the front side, and a fixing plate 15 is provided on the right outer wall of the membrane bioreactor treatment chamber 12;

[0120] The clean water pump 1602 is mounted on the fixed plate 15;

[0121] The clean water pump 1602 is connected to the membrane bioreactor 1601 through the fourth connecting pipe 1603. The water outlet of the clean water pump 1602 is located above the clean water tank 17. When the clean water pump 1602 is started, water is processed by the membrane bioreactor 1601 and then pumped out. The treated water flows into the clean water tank 17.

[0122] See also Figure 11 In some embodiments, the mud-water separation assembly 21 includes a sludge pump 2101, an extrusion separation cylinder 2102, and a third connecting pipe 2103;

[0123] A sludge pump 2101 is installed near the rear end of the membrane biological reaction treatment chamber 12, and an extrusion separation cylinder 2102 is installed at the upper end of the water storage chamber 19. The extrusion separation cylinder 2102 is in the shape of a truncated cone.

[0124] The sludge pump 2101 is connected to the top of the left end of the squeezing and separating cylinder 2102 through the third connecting pipe 2103. When the sludge pump 2101 is started, the sludge in the membrane biological reaction treatment chamber 12 can be transported to the squeezing and separating cylinder 2102.

[0125] See also Figure 12 The mud-water separation component 21 also includes a spiral extrusion blade 2104, a drive motor 2105, a water hole 2106, and a discharge port 2107;

[0126] The interior of the extrusion separation cylinder 2102 is connected to a spiral extrusion blade 2104 via a bearing. The diameter of the spiral extrusion blade 2104 gradually decreases from left to right.

[0127] A drive motor 2105 is mounted on the left end of the spiral extrusion blade 2104. The drive motor 2105 is located outside the extrusion separation cylinder 2102. Several water-permeable holes 2106 (located above the water storage chamber 19) are provided at the bottom of the extrusion separation cylinder 2102. A discharge port 2107 is provided near the bottom of the right end of the extrusion separation cylinder 2102. The discharge port 2107 is located above the sludge storage chamber 20. When the drive motor 2105 is activated, the spiral extrusion blade 2104 rotates, which, in conjunction with the sludge pump 2101, separates water from the sludge during the rightward sludge transport process, which flows into the water storage chamber 19. The dehydrated sludge is then transported to the sludge storage chamber 20 through the discharge port 2107. Compared to natural drying, this method can significantly shorten the sludge drying time and improve treatment efficiency.

[0128] See also Figure 13 In some embodiments, the second circulation component 22 includes a second circulation pump 2201 and a second circulation pipe 2202;

[0129] A second circulation pump 2201 is installed near the rear end of the water storage chamber 19. The second circulation pump 2201 is connected to the top of the anaerobic chamber 7 near the rear end through a second circulation pipe 2202. Starting the second circulation pump 2201 can circulate the water separated from the sludge to avoid wasting water resources.

[0130] During operation, the skid-mounted box shell 1 is convenient for overall production and shipment. First, the manure storage tank 3 is connected to the sewage pipeline, and the sewage is preliminarily treated through the manure storage tank 3. Then the sewage enters the regulating tank 4. A grid filter plate 502 is installed in the middle of the fixed frame 501. The grid filter plate 502 can filter larger impurities to avoid clogging subsequent pipelines. Then, the sewage is lifted into the anaerobic chamber 7 through the lifting pump. The anaerobic chamber 7 is an oxygen-free environment, which is convenient for anaerobic bacteria to react and treat. Then, the sewage is lifted and pumped into the anoxic chamber 8, and the first air pump 903 is started. Oxygen is pumped to the oxygenation bubble head 902 through the first connecting pipe 904, thereby creating a micro-oxygen environment. Facultative microorganisms convert organic nitrogen in the sewage into ammonia nitrogen. At the same time, they use the organic carbon source as an electron donor to convert NO3-N and NO-N into N2. The sewage is lifted and pumped into the aerobic chamber 11. The second air pump 1302 is started and a large amount of oxygen is transported to the microporous aeration disk 1301 through the second connecting pipe 1303. The oxygen is evenly released through the micropores to create an oxygen-rich environment. The sewage treatment is completed by relying on autotrophic bacteria. They use the inorganic carbon produced by the decomposition of organic matter. The carbon dioxide in the air or the air is used as a nutrient source to convert ammonia nitrogen in the sewage into NO2-N and NO3-N. The first circulation pump 1401 is started to return part of the water to the anaerobic chamber 7 for internal circulation to achieve the purpose of denitrification and further improve the sewage treatment effect. The clean water pump 1602 is started to pump out the water after it is treated by the membrane bioreactor 1601. The treated water flows into the clean water tank 17. The sludge pump 2101 is connected to the top of the left end of the squeezing separation cylinder 2102 through the third connecting pipe 2103. The sludge pump 2101 is started to The sludge in the membrane biological reaction treatment chamber 12 is transported to the extrusion separation cylinder 2102, and the drive motor 2105 is started to drive the spiral extrusion blade 2104 to rotate, and cooperate with the sludge pump 2101 to separate the water in the process of transporting the sludge to the right and flow into the water storage chamber 19. The dehydrated sludge is transported to the sludge storage chamber 20 through the discharge port 2107. Compared with natural drying, it can greatly shorten the drying time of the sludge and improve the treatment efficiency. Starting the second circulation pump 2201 can circulate the water separated from the sludge to avoid waste of water resources.

[0131] Through the above steps, a portion of the water is returned to the anaerobic chamber 7 for internal circulation through the set first circulation component 14 to achieve the purpose of denitrification, further improving the sewage treatment effect. At the same time, mud and water separation is achieved through the set mud and water separation component 21. Compared with natural drying, it can greatly shorten the drying time of the sludge and improve the treatment efficiency. The water separated from the sludge is then circulated through the second circulation component 22 to avoid waste of water resources, so as to solve the common skid-mounted integrated integrated sewage treatment equipment, which lacks a multi-stage circulation structure, is not conducive to denitrification reaction, and the sewage treatment effect needs to be improved. At the same time, there is a lack of mud and water separation structure, and the sludge is treated by gravity concentration and natural drying. Water resources are wasted and the work efficiency needs to be improved.

[0132] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A skid-mounted integrated sewage treatment equipment, characterized in that: include: A regulating tank (4), an anoxic tank (6), a membrane biological reaction tank (10), a separation tank (18), a first circulation component (14), a membrane biological reaction component (16) and a mud-water separation component (21); The anoxic tank (6) includes an anaerobic chamber (7) and an anoxic chamber (8); The membrane bioreactor tank (10) comprises an aerobic chamber (11) and a membrane bioreactor treatment chamber (12); The separation tank (18) includes a water storage chamber (19) and a mud storage chamber (20); the separation tank (18) is located on one side of the membrane biological reaction treatment chamber (12); The regulating tank (4), the anaerobic chamber (7), the anoxic chamber (8), the aerobic chamber (11) and the membrane biological reaction treatment chamber (12) are connected in sequence; The membrane biological reaction treatment chamber (12) is connected to the water storage chamber (19) and the mud storage chamber (20) respectively through the mud-water separation component (21); One end of the first circulation component (14) is arranged in the aerobic chamber (11), and the other end is connected to the anaerobic chamber (7); The membrane bioreactor component (16) is arranged in the membrane bioreactor treatment chamber (12).

2. The skid-mounted integrated sewage treatment equipment according to claim 1 is characterized in that: Also includes: A skid-mounted housing (1), an inspection port (2), a manure storage tank (3) and a clean water tank (17); The manure storage tank (3), regulating tank (4), anoxic tank (6), membrane biological reaction tank (10), clean water tank (17) and separation tank (18) are sequentially arranged in the skid-mounted housing (1); The top of the skid-mounted box shell (1) is provided with an inspection port (2); The outlets of the plurality of manure storage tanks (3) are connected to the regulating tank (4); The clear water tank (17) is connected to the membrane bioreactor treatment chamber (12) via a membrane bioreactor assembly (16); A vent pipe (23) is provided on the top of the manure storage tank (3), and a plurality of cleaning openings (24) are equidistantly installed on the top of the manure storage tank (3).

3. The skid-mounted integrated sewage treatment equipment according to claim 1 is characterized in that: An inclined primary filter assembly (5) is provided inside the regulating tank (4); The primary filter assembly (5) comprises a fixing frame (501) and a grid filter plate (502); A grid filter plate (502) is installed in the middle of the fixing frame (501).

4. The skid-mounted integrated sewage treatment equipment according to claim 2 is characterized in that: A micro-oxygen component (9) is provided in the anoxic chamber (8); The micro-oxygen assembly (9) includes a mounting bar (901), an oxygen-enhancing bubble head (902), a first air pump (903) and a first connecting pipe (904); The bottom of the anoxic chamber (8) is connected to a mounting bar (901); A plurality of oxygen-enhancing bubble heads (902) are evenly arranged on the top of the installation strip (901); A first air pump (903) is installed on the top of the skid-mounted box shell (1); The first air pump (903) is connected to the oxygen enrichment bubble head (902) via a first connecting pipe (904).

5. The skid-mounted integrated sewage treatment equipment according to claim 2, characterized in that: An oxygen enrichment component (13) is provided in the aerobic chamber (11); The oxygen enrichment component (13) includes a microporous aeration disk (1301), a second air pump (1302) and a second connecting pipe (1303); The aerobic chamber (11) is internally connected to a plurality of microporous aeration disks (1301); A second air pump (1302) is installed on the top of the skid-mounted box shell (1); The second air pump (1302) is connected to the microporous aeration disk (1301) via a second connecting pipe (1303).

6. The skid-mounted integrated sewage treatment equipment according to claim 1, characterized in that: The first circulation component (14) includes a first circulation pump (1401) and a first circulation pipe (1402); A first circulation pump (1401) is provided in the aerobic chamber (11); The first circulation pump (1401) is connected to a first circulation pipe (1402), and the first circulation pipe (1402) is connected to the anaerobic chamber (7).

7. The skid-mounted integrated sewage treatment equipment according to claim 2, characterized in that: The membrane bioreactor assembly (16) comprises a membrane bioreactor membrane (1601), a clean water pump (1602) and a fourth connecting pipe (1603); A membrane bioreactor membrane (1601) is provided in the membrane bioreactor treatment chamber (12), and a fixing plate (15) is provided on the side wall; The clean water pump (1602) is mounted on the fixed plate (15); The clean water pump (1602) is connected to the membrane bioreactor (1601) via a fourth connecting pipe (1603), and the water outlet of the clean water pump (1602) is located above the clean water tank (17).

8. The skid-mounted integrated sewage treatment equipment according to claim 1, characterized in that: The mud-water separation component (21) comprises a sludge pump (2101), an extrusion separation cylinder (2102) and a third connecting pipe (2103); A sludge pump (2101) is installed inside the membrane biological reaction treatment chamber (12); An extrusion separation cylinder (2102) is installed at the upper end of the water storage chamber (19); the extrusion separation cylinder (2102) is in a truncated cone shape; The sludge pump (2101) is connected to the extrusion separation cylinder (2102) via a third connecting pipe (2103).

9. The skid-mounted integrated sewage treatment equipment according to claim 8, characterized in that: The mud-water separation component (21) further comprises: a spiral extrusion blade (2104), a drive motor (2105), a water permeable hole (2106) and a discharge port (2107); The extrusion separation cylinder (2102) is connected to a spiral extrusion blade (2104) via a bearing; the diameter of the spiral extrusion blade (2104) gradually decreases from left to right; A driving motor (2105) is installed at one end of the spiral extrusion blade (2104); The bottom of the extrusion separation cylinder (2102) is provided with a plurality of water-permeable holes (2106), and one end of the extrusion separation cylinder (2102) is provided with a discharge port (2107), which is located above the mud storage cavity (20).

10. The skid-mounted integrated sewage treatment equipment according to claim 1, characterized in that: Also includes: a second circulation component (22); One end of the second circulation component (22) is disposed in the water storage chamber (19), and the other end is connected to the anaerobic chamber (7); The second circulation component (22) includes a second circulation pump (2201) and a second circulation pipe (2202); A second circulation pump (2201) is installed inside the water storage chamber (19); The second circulation pump (2201) is connected to the anaerobic chamber (7) via a second circulation pipe (2202).

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