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Marine membrane-process domestic sewage treatment method

A domestic sewage and membrane technology, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, bathing facility wastewater treatment, etc., and can solve problems such as many requirements.

Inactive Publication Date: 2018-01-16
JIANGSU NANJI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the domestic sewage treatment devices used on ships, for long-distance ships, there are many requirements for the long-term treatment of domestic sewage and the discharge in the territorial waters and high seas of different countries, and the existing sewage treatment devices for ships cannot meet the requirements.

Method used

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  • Marine membrane-process domestic sewage treatment method

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with drawings and embodiments.

[0023] figure 1 Shown: a kind of domestic sewage treatment device of marine membrane method comprises buffer cabinet 1, serial batch cabinet 4, gray water cabinet 6, chemical flocculation cabinet 8, sludge storage cabinet 12, filter membrane group 13 and ultraviolet sterilizer 16, described The top of the buffer cabinet 1 is provided with a black water inlet 19 and a flushing water outlet 20. The buffer cabinet 1 is provided with buffer high, medium and low level switches F1, F2, F3, and buffer aeration pipes 2 sequentially from top to bottom. There is an overflow port 3 higher than the buffer high-level liquid level switch, the buffer aeration pipe 2 is externally connected to the first air pump PQ1, and the bottom of the buffer cabinet 1 is connected to the batch batch cabinet through the second solenoid valve VQ2, crushing pump P1, and third solenoid valve VQ3 4. In...

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Abstract

The invention relates to a marine membrane-process domestic sewage treatment method. When liquid level of a sequencing batch tank reaches a sequencing batch high level switch, a crushing pump stops transfer; sewage is continuously added, and inflowing of sewage is stopped when liquid level of a buffer tank reaches a buffer median level switch; during normal operation of the equipment, a buffer lowlevel switch or a sequencing batch low level switch is dehydrated for more than 4 h and the equipment automatically enters a sleeping state; and a first air pump and a second air pump alternately stop and start once every 20 minutes until sewage enters, and sleeping state stops. The buffer tank is equipped with an overflow mouth higher than a buffer high level switch. An inlet or outlet of a filter membrane group is externally connected to a compressed air source with an air valve.

Description

technical field [0001] The invention relates to a marine device, in particular to a marine sewage treatment method using a membrane method. Background technique [0002] With the development of the ocean, the pollution of ocean water is becoming more and more serious. The domestic sewage treatment devices used on ships have many requirements for the long-term treatment of domestic sewage and the discharge of domestic sewage in the territorial waters and high seas of different countries, which cannot be met by the existing ship sewage treatment devices. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a domestic sewage treatment method with marine membrane method that can take into account the treatment of black water and gray water, has good treatment effect, and can meet the requirements of long-term use and discharge in different sea areas. [0004] The technical scheme adopted in the present invention is: a ...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F103/42
Inventor 王荣华殷峰汪留林刘燕蔡飞顾娟
Owner JIANGSU NANJI MACHINERY