Sewage treatment unit

Abstract

The invention discloses a sewage treatment unit, which comprises an aeration chamber (1), a contact chamber (2), a settling chamber (3) and an MBR chamber (4), wherein the aeration chamber (1) is communicated with the contact chamber (2) by a filter sieve plate (5); the contact chamber (2) is communicated with the settling chamber (3) by the filter sieve plate (5); the settling chamber (3) is communicated with the MBR chamber (4) by a filter bag (11); a membrane module (6) is arranged in the MBR chamber (4); the outlet of the membrane module (6) is communicated with an ultraviolet sterilization device (8) by a sorption pump (7); and the outlet of the ultraviolet sterilization device (8) is connected with the outside of a cabin. The sewage treatment unit provided by the invention has low cost, high performance and long service life and can meet the discharge index of the new 'convention'.

Description

technical field

[0001] The invention relates to a domestic sewage treatment device. Background technique

[0002] At present, the known marine sewage treatment devices are basically treated by biochemical methods, that is, the oxygenated sewage flows through the filler at a certain speed, so that the filler is covered with biofilm, and the sewage and biofilm contact, and the role of biofilm Under this condition, aerobic bacteria continuously devour organic matter to purify the sewage.

[0003] Since January 1, 2010, the "MARPOL73 / 78 Anti-pollution Convention" proposed by the Marine Environment Protection Committee of the International Maritime Organization on October 13, 2006 on the discharge requirements of ships' domestic sewage treatment devices has been officially implemented. The discharge index of the sewage treatment process of the device is far from meeting the new sewage discharge standard announced by the new "Convention", and the existing device has a short servi...

Examples

Embodiment Construction

[0010] exist figure 1 Among them, a domestic sewage treatment device includes an aeration chamber 1, a contact chamber 2, a sedimentation chamber 3 and an MBR chamber 4. The aeration chamber 1 communicates with the contact chamber 2 through a filter sieve plate 5, and the contact chamber 2 passes through a filter sieve plate 5 It communicates with the precipitation chamber 3. The sedimentation chamber 3 communicates with the MBR chamber 4 through the filter bag 11, the transfer pump 9 and the filter bag 11 form a recoil circuit, the MBR chamber 4 is provided with a membrane module 6, and the outlet of the membrane module 6 is connected to the ultraviolet sterilizing device through the suction pump 7 8 are connected, the outlet of the ultraviolet sterilizing device 8 is connected to the outside of the cabin, and the outlet of the ultraviolet sterilizing device 8 is provided with a check valve 15. The aeration chamber 1, the contact chamber 2, the precipitation chamber 3 and th...

technical field

[0001] The invention relates to a domestic sewage treatment device. Background technique

[0002] At present, the known marine sewage treatment devices are basically treated by biochemical methods, that is, the oxygenated sewage flows through the filler at a certain speed, so that the filler is covered with biofilm, and the sewage and biofilm contact, and the role of biofilm Under this condition, aerobic bacteria continuously devour organic matter to purify the sewage.

[0003] Since January 1, 2010, the "MARPOL73 / 78 Anti-pollution Convention" proposed by the Marine Environment Protection Committee of the International Maritime Organization on October 13, 2006 on the discharge requirements of ships' domestic sewage treatment devices has been officially implemented. The discharge index of the sewage treatment process of the device is far from meeting the new sewage discharge standard announced by the new "Convention", and the existing device has a short servi...

Examples

Embodiment Construction

[0010] exist figure 1 Among them, a domestic sewage treatment device includes an aeration chamber 1, a contact chamber 2, a sedimentation chamber 3 and an MBR chamber 4. The aeration chamber 1 communicates with the contact chamber 2 through a filter sieve plate 5, and the contact chamber 2 passes through a filter sieve plate 5 It communicates with the precipitation chamber 3. The sedimentation chamber 3 communicates with the MBR chamber 4 through the filter bag 11, the transfer pump 9 and the filter bag 11 form a recoil circuit, the MBR chamber 4 is provided with a membrane module 6, and the outlet of the membrane module 6 is connected to the ultraviolet sterilizing device through the suction pump 7 8 are connected, the outlet of the ultraviolet sterilizing device 8 is connected to the outside of the cabin, and the outlet of the ultraviolet sterilizing device 8 is provided with a check valve 15. The aeration chamber 1, the contact chamber 2, the precipitation chamber 3 and th...

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