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Hazardous chemical substance separation and recovery method

A technology for separation and recovery of hazardous chemicals, applied in chemical instruments and methods, multi-stage water/sewage treatment, precipitation treatment, etc., can solve problems such as the inability to realize the recovery of hazardous chemicals, reduce the content of hazardous chemicals, and ensure separation Efficiency, slowing inlet flow and pressure pulsation effect

Inactive Publication Date: 2020-03-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem that the recovery of hazardous chemicals cannot be realized in the prior art, and to provide a method for the separation and recovery of hazardous chemicals, which realizes the efficient separation and recovery of hazardous chemicals leaked at sea, and the hazardous chemicals Recycling efficiency reaches over 70%

Method used

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  • Hazardous chemical substance separation and recovery method
  • Hazardous chemical substance separation and recovery method

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Embodiment Construction

[0025] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0026] combine figure 1 , the present invention provides a method for separation and recovery of hazardous chemicals, comprising the following steps:

[0027] S1. Preliminarily separate the hazardous chemicals from the water phase by gravity separation of the water phase containing the hazardous chemicals, and recycle the separated hazardous chemicals;

[0028] S2. The aqueous phase separated in step S1 is further separated from the hazardous chemicals by means of membrane separation and recovered.

[0029] In the method for separating and recovering hazardous chemicals of the present invention, the hazardous chemicals and the water phase are initially separat...

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Abstract

The invention relates to the technical field of emergency disposal of hazardous chemical substance accidents, and discloses a hazardous chemical substance separation and recovery method. The method includes: S1, performing initial separation on a water phase containing a hazardous chemical substance through gravity separation to obtain separated water phase and hazardous chemical substance, and recycling the separated hazardous chemical substance; S2, further separating the water phase through membrane separation to separate the hazardous chemical substance, and recycling the separated hazardous chemical substance. The method achieves high-effective separation and recovery of hazardous chemical substance due to marine leakage, wherein the concentration of the hazardous chemical substance at the outlet can be finally reduced to lower than 10 ppm. The treated water phase can be directly discharged into sea. The recycling efficiency of the hazardous chemical substance reaches more than 70%.

Description

technical field [0001] The invention relates to the technical field of emergency treatment of hazardous chemical accidents, in particular to a method for separating and recycling hazardous chemicals. Background technique [0002] With the rapid economic and social development and the rapid rise of the chemical industry, the sea transportation of hazardous chemicals in our country is increasing day by day. However, development opportunities come with risks, and hazardous chemical leakage accidents at sea frequently occur around the world. Such accidents are characterized by high hazards, strong suddenness, and high difficulty in disposal. Scientific and reasonable emergency response measures should be taken in time according to the nature of hazardous chemicals, otherwise it will seriously endanger the marine ecological environment and the production and life safety of coastal residents. . [0003] At present, research institutions at home and abroad mainly conduct research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F103/08
CPCC02F1/281C02F1/283C02F1/444C02F9/00C02F2001/007C02F2103/08
Inventor 闫茜谢谚周志国牟桂芹王昕喆杨洋洋张福良曲聪
Owner CHINA PETROLEUM & CHEM CORP
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