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What Measures Should be Taken for the Leakage of Hazardous Chemicals

Posted Date:2020/12/25

Chemical storage containers, whether they are oil drums, chemical storage drums, reagent bottles used in laboratories, factory batteries, etc., will leak due to long-term use, or leak due to damage, or overflow during the process of packaging Splashes, these phenomena will pollute the working environment and affect clean production. If the leakage of these chemicals is not treated or prevented in time, it will pollute the water or soil, not only causing a bad impact on the environment, but also seriously endangering people's lives and property safety.

When making the SDS of the Chemical Safety Data Sheet, we must pay particular attention to the preparation of Part 6 on emergency handling of leakage.This includes a series of important information related to chemical leakage, such as protective measures and emergency measures for workers, environmental protection measures, storage and removal methods of the leaked chemicals, and applicable disposal materials. This information is directly related to whether chemical spills can be handled quickly, safely and effectively.

Emergency measures that must be taken for chemical spills:

The emergency treatment of hazardous chemical leakage is usually divided into two steps: leakage accident control and leakage collection. Leakage accident control is generally divided into two parts: leakage source control and leakage disposal.

Commonly used items for leakage source control are: adhesives, repair agents, rubber repair agents, epoxy plugging rods, wet surface repair agents, high temperature wear repair agents, ordinary wear repair agents, ceramic repair agents, water pump repair agents , Titanium alloy repair agent, plastic steel repair agent, plastic steel repair agent, stainless steel repair agent, copper repair agent, aluminum repair agent, etc.

Commonly used items for disposal of spills are: absorbent cotton, oil absorbent cotton, absorbent cotton, liquid absorbent cotton, chemical absorbent cotton, oil absorbent cotton, general-purpose absorbent cotton, etc.

The items commonly used in leakage collection are: chemical-proof garbage bags, fire-proof garbage cans, oily waste and fire-proof garbage cans, splash-proof trays, leak-containing trays, leak-containing pallets, newpig trays, polyethylene leak-containing trays, high-density poly Ethylene spill tray, wide-mouth collection tank, waste liquid tank, JUSTRITE wide-mouth tank, metal tank, safety tank, waste liquid storage barrel, storage barrel, kiloliter barrel, ton barrel, medium bulk container, container barrel, ton Packaging, IBC barrel chemical storage, plastic storage barrel, medium bulk container.

Method steps:

1. Precautions for leak handling:

When entering the leak site for treatment, the following items should be noted:

Personnel entering the site must be equipped with necessary personal protective equipment: such as chemical protective boots, chemical protective gloves, chemical protective clothing. Necessary respiratory protective equipment. If the spilled chemicals are flammable and explosive, fire should be strictly prohibited. Extinguish any open flames and any other forms of heat and fire sources to reduce the risk of fire and explosion; it is strictly forbidden to act alone during emergency treatment, with guardians, and water guns or water cannons when necessary. The scene should be approached from upwind and uphill, and blind entry is strictly prohibited.

2.Leak source control:

If possible, control the spill or leakage of the chemical to eliminate the further spread of the chemical. This can be done in the following ways:

(1) By closing the relevant valves, stopping the operation, or by adopting methods such as changing the process flow, passing the auxiliary line of materials, partial parking, cycling, and load reduction operation.

(2) After the container leaks, measures should be taken to repair and block the cracks to prevent further leakage of chemicals, which is very critical for the entire emergency treatment. The success of plugging depends on several factors: the degree of danger near the leak point, the size of the leak hole, the actual or potential pressure at the leak point, and the characteristics of the leaking material.

3.Disposal of leakage:

After the leakage is controlled, the on-site leakage should be covered, contained, diluted, and treated in time so that the leakage can be safely and reliably disposed of to prevent secondary accidents.

4.The main methods for disposing of spills on the ground are as follows:

If the chemical is liquid, it will spread and spread when it leaks on the ground, making it difficult to collect and process. To this end, it is necessary to build dikes to block or divert the flow to a safe place. To this end, it is necessary to build a dike to block or divert to a safe place. When liquid leakage occurs in the storage tank area, the rainwater valve shall be closed in time to prevent materials from flowing out along the open ditch. For liquid leakage, in order to reduce the evaporation rate of the material to the atmosphere, foam or other covering materials can be used to cover the leaked material, and a covering layer is formed on the surface to inhibit its evaporation. Or use low temperature cooling to reduce the evaporation of leakage.

Precautions for the open storage of chemicals:

1. If chemicals are to be placed outdoors, it must be ensured that rain does not enter. Wrap the leaking tray, the leaking platform, and the IBC leaking tray with a waterproof raincloth, which can achieve the purpose of preventing rain, sun, and preventing insects and birds from entering the wrapping container.

2. The fixed open-air storage yard must meet the requirements of the "Code for Fire Protection Design of Buildings" and other relevant specifications.

3. Items that may explode, burn, decompose and deteriorate after exposure to water, dampness, sun exposure, and dust pollution are not allowed to be stored in the open air for a long time.

4. The open-air storage yard shall be provided with a stacking platform whose height above the ground shall not be less than 0.3m.

5. There should be no less than 3m passage between stacks.

6. There are open drainage ditches or concealed ditches around the storage yard and protective fences.

7. The setting of the stacking platform should also follow the principle of conflicts, different fire fighting methods and no mixed storage.