Every day is the day that various forms of waste get produced in households and other places. One of those wastes is referred to as hazardous waste. This is waste that has the potential to pose threat to the environment or public health. As such, it must be disposed safely and sufficiently. In many countries, hazardous waste disposal is regulated by the government under strict laws.
In the United States, RCRA is responsible for handling the regulation of hazardous materials. Under RARC, these materials are placed into two key groups, that is, listed and characteristic wastes. Wastes of all kinds that are tested and found to contain the ability of ignitability, corrosivity, reactivity, and toxicity fall under the characteristic category. On the other hand, listed wastes are those that have been listed to be a threat by the authorities. They come from specific sources, discarded chemical products, and non-specific sources.
Both domestic and industrial applications result in the creation of hazardous wastes. Although industries and homes create the wastes, the scale on which industries do it is much larger. Production in homes is from various products that are used every day such as ammunition, paints and solvents, aerosols, caustics, pesticides, electronics, and refrigerant. Radioactive automotive wastes are also becoming more common.
Historically, most wastes of this nature were destined for landfills. However, that changed with the discovery that the materials used to be leaked to water reservoirs under the ground. From the reservoirs, the materials would find a way into natural hydrologic systems. This problem had to be stopped, which necessitated the development of counter measures. One way was to install the sides and bases of landfills with barriers. The barriers stopped materials from seeping underground.
Besides installation of foundations at the bases of landfills, solidification and stabilization is done to most wastes prior to disposal. Cement is used in the stabilization and solidification process. Cement can be used on many wastes and it is why it is used. Stabilization and solidification improves physical characteristics of the materials while decreasing their toxicity and ability to transmit contaminants.
Flammable materials are often recycled so that they can be put to other uses when their life cycle has elapsed. For instance, most flammable materials are now being recycled into industrial fuel. Additionally, lead acid batteries and electronic circuit boards are also being recycled on a large scale in most developed countries. Ashes from the combustion of certain products are often used as fillings for pavements.
Incineration is another widely used method in disposal. This method is used on almost all kinds of wastes. It is safe and convenient, but requires heavy initial financial commitment. Most companies that produce a lot of wastes usually own their own incineration chambers for disposing the wastes they produce. Modern incinerators are very effective and relatively cheap to maintain.
Substances are burned in a large chamber during incineration. All substances are turned to ash by high temperatures the chambers operate at. The duration for combustion varies with the nature of substance in question. Emptying of the chamber is only done after enough time has been allowed for it to cool.
In the United States, RCRA is responsible for handling the regulation of hazardous materials. Under RARC, these materials are placed into two key groups, that is, listed and characteristic wastes. Wastes of all kinds that are tested and found to contain the ability of ignitability, corrosivity, reactivity, and toxicity fall under the characteristic category. On the other hand, listed wastes are those that have been listed to be a threat by the authorities. They come from specific sources, discarded chemical products, and non-specific sources.
Both domestic and industrial applications result in the creation of hazardous wastes. Although industries and homes create the wastes, the scale on which industries do it is much larger. Production in homes is from various products that are used every day such as ammunition, paints and solvents, aerosols, caustics, pesticides, electronics, and refrigerant. Radioactive automotive wastes are also becoming more common.
Historically, most wastes of this nature were destined for landfills. However, that changed with the discovery that the materials used to be leaked to water reservoirs under the ground. From the reservoirs, the materials would find a way into natural hydrologic systems. This problem had to be stopped, which necessitated the development of counter measures. One way was to install the sides and bases of landfills with barriers. The barriers stopped materials from seeping underground.
Besides installation of foundations at the bases of landfills, solidification and stabilization is done to most wastes prior to disposal. Cement is used in the stabilization and solidification process. Cement can be used on many wastes and it is why it is used. Stabilization and solidification improves physical characteristics of the materials while decreasing their toxicity and ability to transmit contaminants.
Flammable materials are often recycled so that they can be put to other uses when their life cycle has elapsed. For instance, most flammable materials are now being recycled into industrial fuel. Additionally, lead acid batteries and electronic circuit boards are also being recycled on a large scale in most developed countries. Ashes from the combustion of certain products are often used as fillings for pavements.
Incineration is another widely used method in disposal. This method is used on almost all kinds of wastes. It is safe and convenient, but requires heavy initial financial commitment. Most companies that produce a lot of wastes usually own their own incineration chambers for disposing the wastes they produce. Modern incinerators are very effective and relatively cheap to maintain.
Substances are burned in a large chamber during incineration. All substances are turned to ash by high temperatures the chambers operate at. The duration for combustion varies with the nature of substance in question. Emptying of the chamber is only done after enough time has been allowed for it to cool.
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