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Anaerobic membrane bioreactor and forward-osmosis reverse-osmosis combined sewage treatment system

A sewage treatment system, anaerobic membrane biological technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of high ammonia nitrogen concentration, substandard effluent, total nitrogen concentration High problems, to achieve the effect of low process energy consumption, improved processing efficiency, and reduced pollution

Inactive Publication Date: 2013-10-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the effluent of the existing anaerobic membrane bioreactor has high ammonia

Method used

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  • Anaerobic membrane bioreactor and forward-osmosis reverse-osmosis combined sewage treatment system

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specific Embodiment approach 1

[0018] Specific embodiment one: combination figure 1 To explain this embodiment, this embodiment includes an inlet tank 1, an inlet pump 2, an anaerobic membrane biological reaction module 3, and a first water pipe 4. The inlet tank 1 and the anaerobic membrane biological reaction module 3 are arranged in order from left to right. The water inlet tank 1 and the anaerobic membrane reaction module 3 are connected by a first water pipe 4, and the water inlet pump 2 is arranged on the first water pipe 4. The sewage treatment system also includes an outlet water suction peristaltic pump 5 and a first outlet water storage liquid Box 6, water inlet peristaltic pump 7, forward osmosis component 8, second water outlet tank 9, booster pump 10, reverse osmosis component 11, high concentration sodium chloride drainage tank 12, pure water drainage tank 13, second water pipe 14. The third water pipe 15, the fourth water pipe 16, the three-way water pipe 17, the fifth water pipe 18 and the si...

specific Embodiment approach 2

[0026] Specific implementation manner two: combination figure 1 To illustrate this embodiment, the forward osmosis component 8 of this embodiment includes an aeration pump 20, a forward osmosis biological reaction tank 21, a forward osmosis flat membrane 22, a forward osmosis driving liquid tank 23, and an aeration pipe 31. The forward osmosis flat membrane 22 is vertical. It is directly arranged between the forward osmosis biological reaction tank 21 and the forward osmosis driving liquid tank 23, and the aeration pump 20 is connected to the forward osmosis biological reaction tank 21 through the aeration pipe 31. With this arrangement, the organic matter, ammonia nitrogen, total nitrogen and phosphorus in the effluent of the anaerobic membrane bioreactor are removed by the activated sludge in the forward osmosis biological reaction tank, and these pollutants are also intercepted by the forward osmosis membrane and driven The driving liquid in the liquid pool drives the permea...

specific Embodiment approach 3

[0031] Specific implementation mode three: combination figure 1 To illustrate this embodiment, the forward osmosis component 8 of this embodiment further includes a gas flow meter 24, which is arranged on the aeration pipe 31 between the aeration pump 20 and the outer wall of the forward osmosis biological reaction tank 21. Such a setting is convenient to control the aeration gas flow rate to maintain the amount of dissolved oxygen in the forward osmosis biological reaction tank 21. The other composition and connection relationship are the same as in the second embodiment.

[0032] Specific implementation manner 4: Combination figure 1 To illustrate this embodiment, the sewage treatment system of this embodiment also includes a driving fluid peristaltic pump 25 and a circulating water passage pipe 26. The forward osmosis driving fluid pool 23 and the high-concentration sodium chloride drainage tank 12 pass through the circulating water passage pipe. 26 is connected, the driving...

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Abstract

The invention relates to an anaerobic membrane bioreactor and a forward-osmosis reverse-osmosis combined sewage treatment system, which relate to a sewage treatment system, and aim at solving the problems of the existing anaerobic membrane bioreactor that in output water the concentration of ammonia and nitrogen is high, the total concentration of total nitrogen is high, the phosphorus of a given quantity is contained, and the output water cannot reach the standard. A water inlet box is connected with the anaerobic membrane bioreactor through a first water pipe, a first water outlet storage tank, a forward osmosis assembly, a second water outlet storage tank and a reverse osmosis assembly are sequentially arranged, a water outlet pumping peristaltic pump is arranged on a second water pipe, a water inlet peristaltic pump is arranged on a third water pipe, a three-way water pipe is respectively connected with a second water outlet storage tank, the reverse osmosis assembly and a pure water discharging tank, a supercharging pump is arranged on the three-way water pipe which is connected with the reverse osmosis assembly, one end of a fifth water pipe is connected with the reverse osmosis assembly, the other end of the fifth water pipe and the three-way water pipe are collectively connected with the pure water discharging tank, and the forward osmosis discharging tank is connected with the reverse osmosis assembly through a sixth water pipe. The anaerobic membrane bioreactor and the sewage treatment system are used for treating the domestic sewage.

Description

Technical field [0001] The invention relates to a sewage treatment system, in particular to a sewage treatment system combined with an anaerobic membrane bioreactor, forward osmosis and reverse osmosis, and belongs to the technical field of sewage treatment. Background technique [0002] Membrane bioreactor is a new water treatment technology that organically combines membrane separation technology and biotechnology. Compared with the traditional activated sludge method, it has good effluent water quality, small equipment footprint, high activated sludge concentration, and low residual sludge yield. It is one of the most promising new technologies for wastewater treatment with its advantages such as easy automatic control. In recent years, with the increasing scarcity of energy, low energy consumption and capacity anaerobic biological treatment technology has attracted more and more attention. Anaerobic membrane bioreactor technology retains many advantages such as low investmen...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 田禹丁一李之鹏王浩宇
Owner HARBIN INST OF TECH
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