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Ship wastewater treatment method and device

A sewage treatment device and marine technology, which is applied in multi-stage water/sewage treatment, illuminated water/sewage treatment, oxidized water/sewage treatment, etc., can solve problems such as membrane fouling, high biological concentration, and sludge concentration limit

Inactive Publication Date: 2014-04-16
CHINESE ACAD OF AGRI MECHANIZATION SCI +1
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Problems solved by technology

[0005] 2) Sludge concentration limit: if the concentration is too high, the biological activity will decrease;
[0006] 3) Membrane fouling: high biological concentration, accelerated membrane fouling

Method used

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  • Ship wastewater treatment method and device
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Embodiment Construction

[0059] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0060]In order to meet the special requirements of sewage treatment for ships sailing at sea, improve the efficiency of existing ship sewage treatment devices, and better solve the problem of ship space limitations, according to the characteristics of ship sewage, the invention adopts membrane biotechnology and advanced oxidation technology. Combined process methods. see figure 1 , figure 1 It is a schematic diagram of the device structure of the present invention. The marine sewage treatment device of the present invention includes a pretreatment system 1, a membrane biological treatment system 3, and an advanced oxidation treatment system 2, and the advanced oxidation treatment system 2 is connected to the pretreatment system 1 and the membrane biological treatment system respectively. 3 connections, the pretreatment syst...

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Abstract

The invention discloses a ship wastewater treatment method and device. The device comprises a pretreatment system, a membrane biotreatment system and an advanced oxidation treatment system, wherein the advanced oxidation treatment system is connected with the pretreatment system and the membrane biotreatment system respectively; the pretreatment system is used for preliminarily depositing ship wastewater and adjusting the inlet water stability of the ship wastewater; the advanced oxidation treatment system is used for degrading organic matters in the ship wastewater through ultraviolet rays and ozone; the membrane biotreatment system is used for further treating the wastewater through aerobe degradation and physical membrane interception to enable the wastewater to reach the direct emission standard. The method comprises the steps of performing pretreatment, performing advanced oxidation treatment, performing membrane biotreatment and discharging. The device has a good treatment effect on the ship wastewater, and is high in efficiency, short in time, small in occupied space and easy to maintain and clean.

Description

technical field [0001] The invention relates to a sewage treatment method and device, in particular to a marine sewage treatment method and device. Background technique [0002] The marine sewage treatment method is applied to the auxiliary equipment of the ship. The equipment undertakes the treatment of domestic sewage on board the ship to make it meet the discharge standard. [0003] With the advancement of science and technology, the awareness of marine environmental protection in various countries has increased. In order to reduce and prevent pollution to the marine environment, since 1973, the International Maritime Organization (IMO) and many countries have made increasingly strict regulations on the discharge of ship waste. Mandatory. Because membrane separation technology can achieve more efficient, thorough and reliable treatment of domestic sewage from ships than other technologies, the discharge water can meet IMO standards. As early as 2000 years ago, the Unit...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/78C02F1/32
Inventor 李树吴燕王志赵凯李嘉
Owner CHINESE ACAD OF AGRI MECHANIZATION SCI
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