Treatment system and process for treating oil dirt at bottom of cabin by using bionic gills

A treatment system, bionic fish technology, applied in the direction of biological water/sewage treatment, filtration treatment, petroleum industry, etc., can solve the problems that the sewage treatment system is not suitable for shipboard use, the leakage of transport bilge water, and the lack of emulsified oil, etc., to achieve Low cost, improved treatment effect, wide source effect

Active Publication Date: 2021-08-17
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these systems can treat oily sewage, they have not proposed a better treatment method for emulsified oil.
Moreover, the above-mentioned sewage treatment system is not suitable for shipboard use, and there is a hidden danger of leakage during the transportation of bilge water

Method used

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  • Treatment system and process for treating oil dirt at bottom of cabin by using bionic gills
  • Treatment system and process for treating oil dirt at bottom of cabin by using bionic gills
  • Treatment system and process for treating oil dirt at bottom of cabin by using bionic gills

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A treatment system that uses bionic fish gills to treat oil pollution at the bottom of the cabin. The system includes an adsorption tank, a regulating tank, a degradation tank, an exhaust system and a storage tank. The adsorption tank, the regulating tank, the degradation tank, the storage tank and the cooling water There is a grille between the systems to block. Adjust pH to 4, COD to 1000mg / L, petroleum hydrocarbon content to 1000ppm, BOD to 1000mg / L, heavy metal ions (Cu 2+ 、Cr 4+ , Pb 2+ , Mn 4+ etc.) oily sewage with a content of 150mg / L is introduced into the system for comprehensive treatment.

[0047] Control the mass-to-liquid ratio of modified straw and oily sewage in the adsorption tank to 1:3, settling time in the regulating tank to 48 hours, adjust the pH to 7, put the polyacrylamide flocculant into the mass-to-liquid ratio to 1:3, and the degradation tank to the bacteria-to-liquid ratio to 1 :400, the microbial degradation time is 24h, and the flow rat...

Embodiment 2

[0054] Control the mass-to-liquid ratio of modified straw and oily sewage in the adsorption tank to 1:7, settling time in the regulating tank to 12 hours, do not adjust the pH, put the polyacrylamide flocculant into the mass-to-liquid ratio to 1:10, and the degradation tank to the bacteria-to-liquid ratio to 1: 100, the microbial degradation time is 10h, and the flow rate of oily sewage is 1m / s.

[0055] Under this condition, the relevant water quality indicators were tested for the oily sewage in the process of system treatment and after treatment, and a conclusion was drawn:

[0056] (1) Sampling the oily sewage passing through the adsorption tank found that the petroleum hydrocarbon content of the oily sewage dropped to 460ppm, the heavy metal ion content dropped to 25.13mg / L, the COD dropped to 560.47mg / L, and the BOD dropped to 470.29mg / L.

[0057] (2) After sampling the oily sewage passing through the adjustment tank, it was found that the heavy metal ion content of the ...

Embodiment 3

[0061] Compared with the previous two examples, the pH of the oily sewage in Example 3 was adjusted to 9, and other parameters remained unchanged.

[0062] Control the mass-to-liquid ratio of modified straw and oily sewage in the adsorption tank to 1:5, settling time in the regulating tank to 12 hours, do not adjust the pH, put the polyacrylamide flocculant into the mass-to-liquid ratio to 1:8, and the degradation tank to the bacteria-to-liquid ratio to 1: 200, the microbial degradation time is 18h, and the flow rate of oily sewage is 1m / s.

[0063] Under this condition, the relevant water quality indicators were tested for the oily sewage in the process of system treatment and after treatment, and a conclusion was drawn:

[0064] (1) Sampling the oily sewage passing through the adsorption tank found that the petroleum hydrocarbon content of the oily sewage dropped to 391ppm, the heavy metal ion content dropped to 18.29mg / L, the COD dropped to 503.62mg / L, and the BOD dropped t...

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Abstract

The invention provides a treatment system and process for treating oil dirt at the bottom of a cabin by using bionic gills. A large amount of oily water exists in the cabin bottom of a ship during operation of the ship. At present, the bilge oily water is mainly removed by being discharged into the sea or docked. According to the working principle that bionic gills purify water, the bionic treatment system is arranged at the cabin bottom, and emulsified oil and other difficult-to-treat components in water at the cabin bottom can be effectively degraded. Under proper conditions, the oily sewage treated by the system reaches the discharge standard. The treated bilge water and by-products are guided into the ship system again so that energy recycling is realized.

Description

technical field [0001] The invention relates to a treatment system and process for treating oil pollution at the bottom of a cabin by using bionic fish gills. Compared with the traditional sewage treatment equipment, the invention can effectively treat the oil pollution in the bilge water, especially the difficult-to-treat emulsified oil pollution. Background technique [0002] Today, with the increasing development of the shipping industry and maritime industry, ships, as an important means of transportation, play a pivotal role in the industry. However, with the increase in the number of ships and voyages, oil pollution incidents caused by ships are also increasing year by year, and one of the major sources of pollution is ship bilge water. Ship bilge water refers to the accumulation of water in the bilge of a ship due to leakage of outer plating, insufficient watertightness of hatch covers, leakage of pipelines, cleaning of engine room, etc. during the voyage of a ship. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C10L3/10B63J4/00F23G7/00
CPCC02F9/00C10L3/103C10L3/106B63J4/006F23G7/00C02F1/001C02F1/286C02F1/66C02F2001/007C02F3/34C02F1/56C02F2103/008C02F2201/001Y02E50/30
Inventor 王明雨梁寒张少君王兆坤张振
Owner SHANDONG JIAOTONG UNIV
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