CN214399972U

CN214399972U - High-efficient nitrogen and phosphorus removal sewage treatment pond

Info

Publication number: CN214399972U
Application number: CN202022012853.0U
Authority: CN
Inventors: 卢志明; 钱炳祥; 袁迪颖; 郑守伟; 陈林辉; 钱建峰; 宋洪利; 毛哲林; 陈普庆; 叶建荣
Original assignee: HANGZHOU SMART WATER TREATMENT ENGINEERING CO LTD
Current assignee: HANGZHOU SMART WATER TREATMENT ENGINEERING CO LTD
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-10-15
Anticipated expiration: 2030-09-15

Abstract

The utility model provides a high-efficient nitrogen and phosphorus removal sewage treatment pond, it includes the cell body of rectangular shape, is equipped with anaerobic zone, anoxic zone, good oxygen district triplex in this cell body and constitutes, anaerobic zone, anoxic zone, good oxygen district connect gradually respectively, and water in the anaerobic zone flows into to the anoxic zone in through the discharge port, and the anoxic zone carries water to the good oxygen district through the mode of flowing automatically and carries out aeration treatment in, MBR membrane cisterna is still connected to the rear in good oxygen district, and this MBR membrane cisterna carries out in aeration circulation through backflow pipeline connection to the good oxygen district. The sewage treatment device has the characteristics of simple structure, good treatment effect, low cost, suitability for treating and cleaning various kinds of sewage, field saving and the like.

Description

High-efficient nitrogen and phosphorus removal sewage treatment pond

Technical Field

The utility model belongs to sewage treatment pond field, concretely relates to high-efficient nitrogen and phosphorus removal sewage treatment pond.

Background

Domestic sewage is wastewater discharged in daily life of residents, mainly comes from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, industrial enterprise toilets and the like, and organic matters in the domestic sewage are extremely unstable and are easy to decay to generate stink. Bacteria and pathogens propagate in large quantities by taking organic matters in domestic sewage as nutrition, which can cause epidemic infectious diseases, and the conventional treatment method is to treat the pollutants through a plurality of biochemical or physicochemical procedures and finally discharge the pollutants after reaching the standard, thereby greatly wasting resources and fields and increasing the treatment cost.

Disclosure of Invention

The utility model overcomes prior art's is not enough, designs a high-efficient nitrogen and phosphorus removal sewage treatment pond, and the problem of place and circulation processing has been solved effectively in this sludge treatment pond, the utility model discloses specifically realize through following technical scheme: the utility model provides a high-efficient nitrogen and phosphorus removal sewage treatment pond, it includes the cell body of rectangular shape, is equipped with anaerobic zone, anoxic zone, good oxygen district triplex in this cell body and constitutes, anaerobic zone, anoxic zone, good oxygen district connect gradually respectively, and water in the anaerobic zone flows into to the anoxic zone in through the preformed hole, and the anoxic zone carries out aeration treatment through the mode entering aerobic zone that flows automatically, the end-to-end connection MBR membrane cisterna in good oxygen district, mixed liquid in this MBR membrane cisterna passes through the backwash pump and connects to the aerobic zone and carry out aeration circulation again.

Preferably, the method comprises the following steps: the center position is equipped with a baffle in the anoxic zone, and this baffle divides the anoxic zone into the first anoxic zone of lower extreme and the second anoxic zone of lower extreme, central position also is equipped with a baffle in the aerobic zone, and this baffle divides the aerobic zone into the first aerobic zone of lower extreme and the second aerobic zone of upper end to be equipped with dive impeller respectively in second anoxic zone and first aerobic zone, can let rivers through first anoxic zone, first aerobic zone, second anoxic zone at last flow back to first anoxic zone in carry out circulation purification.

Preferably, the method comprises the following steps: the length of the partition board is half of that of the anoxic zone and the aerobic zone, guide walls are respectively arranged at the upper corners and the lower corners of the left end part and the right end part of the anoxic zone and the aerobic zone, and at least one group of aeration pipes with aeration heads are arranged in the aerobic zone.

The utility model relates to a high-efficient nitrogen and phosphorus removal sewage treatment pond, this sewage treatment pond have simple structure, and the treatment effect is good, and is with low costs, is applicable to various sewage treatment's clearance to have characteristics such as saving the field.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic flow chart of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings: shown in figure 1, a high-efficient nitrogen and phosphorus removal sewage treatment pond, it includes the cell body 1 of rectangular shape, is equipped with anaerobic zone 2, anoxic zone 3 in this cell body 1, aerobic zone 4 triplex, anaerobic zone 2, anoxic zone 3, aerobic zone 4 connect gradually respectively, and water in anaerobic zone 2 flows into anoxic zone 3 through preformed hole 5 in, and anoxic zone 3 gets into aerobic zone 4 through the mode of flowing automatically and carries out aeration treatment, the end-to-end connection MBR membrane cisterna 5 of aerobic zone 4, and the mixed liquid in this MBR membrane cisterna 5 is connected to aerobic zone 4 through backwash pump 6 and is carried out the aeration circulation again.

A partition plate 7 is arranged at the center in the anoxic zone 3, the partition plate 7 divides the anoxic zone into a first anoxic zone at the upper end and a second anoxic zone at the lower end, a partition plate 7 is also arranged at the center in the aerobic zone 4, the partition plate 7 divides the aerobic zone into a first aerobic zone at the lower end and a second aerobic zone at the upper end, submersible flow pushers 8 are respectively arranged in the second anoxic zone and the first aerobic zone, water flow can pass through the first anoxic zone, the first aerobic zone, the second aerobic zone and the second anoxic zone and finally flows back to the first anoxic zone for circulation purification, the length of the partition plate 7 is half of that of the anoxic zone 3 and the aerobic zone 4, flow guide walls 11 are respectively arranged at the upper corners and the lower corners of the left end part and the right end part of the anoxic zone 3 and the aerobic zone 4, and at least one group of aeration pipes 10 with aeration heads 9 is arranged in the aerobic zone 4.

The utility model discloses reform transform into functional areas such as first anoxic zone, anaerobic zone, first aerobic zone and second aerobic zone with the reaction tank, the membrane cisterna can be according to actual conditions or newly-built or advantage old, municipal sewage gets into the MBR membrane cisterna that flows automatically after biochemical treatment, and the MBR is produced water and is up to standard to discharge, and mud mixed liquid then promotes through middle elevator pump and flow back to first aerobic zone. In addition, an internal reflux system from the first aerobic zone to the first anoxic zone is also arranged in the tank to realize denitrification, and the reflux ratio from the MBR membrane tank to the first aerobic zone is 300-500% and the reflux ratio from the first aerobic zone to the first anoxic zone is about 200-300%. Greatly improves the purification efficiency, occupies small area and saves land resources.

Claims

1. The utility model provides a high-efficient nitrogen and phosphorus removal sewage treatment pond, it includes the cell body of rectangular shape, its characterized in that be equipped with the anaerobic zone in the cell body, anoxic zone, good oxygen district and constitute, anaerobic zone, anoxic zone, good oxygen district connect gradually respectively, and water in the anaerobic zone flows into to the anoxic zone in through the preformed hole, and the anoxic zone carries out aeration treatment through the mode entering aerobic zone that flows automatically in, the end-to-end connection MBR membrane cisterna in the aerobic zone, and the mixed liquid in this MBR membrane cisterna passes through the backwash pump and connects to the aerobic zone and carry out aeration circulation again.

2. The efficient denitrification and dephosphorization sewage treatment tank as claimed in claim 1, wherein a partition is provided at a central position in said anoxic zone, said partition divides said anoxic zone into a first anoxic zone at a lower end and a second anoxic zone at a lower end, said aerobic zone is also provided at a central position therein with a partition, said partition divides said aerobic zone into a first aerobic zone at a lower end and a second aerobic zone at an upper end, and submersible water pushers are provided in said second anoxic zone and said first aerobic zone, respectively, for allowing water to flow through said first anoxic zone, said first aerobic zone, said second aerobic zone, and said second anoxic zone and finally return to said first anoxic zone for circulation purification.

3. The efficient denitrification and dephosphorization wastewater treatment tank as claimed in claim 2, wherein the length of said partition is half of the length of the anoxic zone and the aerobic zone, and the upper and lower corners of the left and right ends of the anoxic zone and the aerobic zone are respectively provided with a flow guide wall, and at least one set of aeration pipes with aeration heads is arranged in the aerobic zone.