Method for treating carbonate sands polluted by overflowed oil at coastal beach

A carbonate and oil spill technology, applied in the direction of solid separation, flotation, etc., to achieve high separation efficiency, low requirements for equipment and operating conditions, and reduce energy consumption

Inactive Publication Date: 2006-06-28
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, for the carbonated seashore sand polluted by oil spills, especially for the pollution caused by high pour point and high viscosity crude oil, there is still a lack of good separation effect, easy operation and environmental friendly treatment technology.

Method used

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  • Method for treating carbonate sands polluted by overflowed oil at coastal beach

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Follow the operating steps in the general instructions combined with the operating parameters in Table 1, and see the separation efficiency in Table 1 for the effect.

[0030] condition

[0031] (Note: The amount of separation agent and seawater added is the ratio of its mass to the treated oil sands; the ratio of each component in the inhibitor and alkali additive refers to the mass percentage of each component in the total mass of the inhibitor or alkali additive .)

Embodiment 2

[0033] Follow the operating steps in the general instructions combined with the operating parameters in Table 2, and see the separation efficiency in Table 2 for the effect.

[0034] condition

[0035] (Note: The amount of separation agent and seawater added is the ratio of its mass to the treated oil sands; the ratio of each component in the inhibitor and alkali additive refers to the mass percentage of each component in the total mass of the inhibitor or alkali additive .)

Embodiment 3

[0037] Follow the operating steps in the general instructions combined with the operating parameters in Table 3, and see the separation efficiency in Table 3 for the effect.

[0038] condition

[0039] (Note: The amount of separation agent and seawater added is the ratio of its mass to the treated oil sands; the ratio of each component in the inhibitor and alkali additive refers to the mass percentage of each component in the total mass of the inhibitor or alkali additive .)

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Abstract

A method for treating the carbonate sand on beach polluted by overflow oil includes such steps as loading the polluted sand, separating chemical and less seawater into pre-treating tank, mechanical stirring, ultrasonic pre-treating loading the mixture in separating tank, filling seawater, stirring and separation.

Description

technical field [0001] The invention belongs to the field of pollution prevention and control, and relates to a treatment method for carbonate beach sand polluted by oil spills. Background technique [0002] The rapid development of my country's economy has made my country's demand for energy, especially crude oil and refined oil, grow rapidly. In 2004, my country's crude oil imports exceeded 120 million tons, and refined oil imports reached nearly 40 million tons in the same period. Most of my country's imported crude oil comes from the Middle East and Africa, and most of these crude oils are transported by ocean-going tankers. Maritime transportation is greatly affected by natural conditions. Once a large-scale oil spill accident occurs, it will bring catastrophic harm to marine ecology, fishery, and aquaculture. For example, in the "Prestige" oil spill accident, more than 20,000 tons of crude oil was leaked, and 183 beaches in 500 kilometers of sea area were seriously p...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03B1/00B03D1/004
Inventor 郑建中王晓燕王静胡西嘉陈建彭波周庆
Owner NANJING UNIV
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