The present invention discloses a method for detoxifying chromium slag by using high sulfur coal. The method includes: sieving chromium slag into coarse-grained chromium slag and fine-grained chromium slag, air-drying and crushing both the coarse-grained chromium slag and the fine-grained chromium slag; separately mixing the crushed coarse-grained chromium slag and fine-grained chromium slag with the crushed high sulfur coal uniformly; adjusting pH values of a coarse-grained slag mixture and a fine-grained slag mixture to 8.0-11.0 and moisture content thereof to 12%-18%; conducting reduction on the treated coarse-grained slag mixture and fine-grained slag mixture, where the reduction temperature of the fine-grained slag mixture is 500-700 C., the reduction time of the fine-grained slag mixture is 10-30 min, the reduction temperature of the coarse-grained slag mixture is 800-1000 C., the reduction time of the coarse-grained slag mixture is 10-30 min; after the reduction, conducting water quenching, and discharging the product.

The method for detoxifying asbestos disclosed here includes: preparing an asbestos-containing substance that contains at least one type of asbestos; preparing an asbestos treatment agent that contains a mineral acid, N-methyl-2-pyrrolidone and a fluoride; and bringing the asbestos-containing substance into contact with the asbestos treatment agent so as to detoxify asbestos in the asbestos-containing substance. Due to this configuration, asbestos in the asbestos-containing substance can be favorably detoxified.

The method for detoxifying asbestos disclosed here includes: preparing an asbestos-containing substance that contains at least one type of asbestos; preparing an asbestos treatment agent that contains a mineral acid, N-methyl-2-pyrrolidone and a fluoride; and bringing the asbestos-containing substance into contact with the asbestos treatment agent so as to detoxify asbestos in the asbestos-containing substance. Due to this configuration, asbestos in the asbestos-containing substance can be favorably detoxified.

A tissue digester system includes a container for housing a digestion chamber having an exterior vessel for holding digestor fluid and an interior vessel, the container extending from a first end to a second end, the interior vessel having perforations and having baffles extending from an interior surface of the interior vessel; a lid secured to the exterior vessel and to provide access to the digestion chamber; one or more heating elements positioned to apply heat to the digestion chamber; a motor engaged with the interior vessel and to create rotational movement of the interior vessel; a control system, having a temperature controller; and a movement controller; the control system is to rotate the interior vessel and heat the digestion chamber based on user commands; and the digestion chamber is to break down remains through application of the digestor fluid to the tissue remains.

A tissue digester system includes a container for housing a digestion chamber having an exterior vessel for holding digestor fluid and an interior vessel, the container extending from a first end to a second end, the interior vessel having perforations and having baffles extending from an interior surface of the interior vessel; a lid secured to the exterior vessel and to provide access to the digestion chamber; one or more heating elements positioned to apply heat to the digestion chamber; a motor engaged with the interior vessel and to create rotational movement of the interior vessel; a control system, having a temperature controller; and a movement controller; the control system is to rotate the interior vessel and heat the digestion chamber based on user commands; and the digestion chamber is to break down remains through application of the digestor fluid to the tissue remains.

The method for detoxifying asbestos disclosed here includes: preparing an asbestos-containing substance that contains at least one type of asbestos; preparing an asbestos treatment agent that contains a mineral acid and N-methyl-2-pyrrolidone; and bringing the asbestos-containing substance into contact with the asbestos treatment agent so as to detoxify asbestos in the asbestos-containing substance. Due to this configuration, asbestos in the asbestos-containing substance can be favorably detoxified.

The method for detoxifying asbestos disclosed here includes: preparing an asbestos-containing substance that contains at least one type of asbestos; preparing an asbestos treatment agent that contains a mineral acid and N-methyl-2-pyrrolidone; and bringing the asbestos-containing substance into contact with the asbestos treatment agent so as to detoxify asbestos in the asbestos-containing substance. Due to this configuration, asbestos in the asbestos-containing substance can be favorably detoxified.

A pH-stable dye which allows the penetration of hydrochloric acid into amorphically different carcinogenic fibers used for detection of sprayed asbestos or plastic mineral fibers for fireproofing components. In the process, the continuous colored penetration of the fiber layers is achieved synchronously with the decomposition process of the hydrochloric add. Thus, the progress of the penetration process can be estimated during the reconstruction work, and the task of removing the now spongy layers can be carried out with contrast agents of the following group consisting of organic and inorganic substances such as acridine orange, brilliant cresyl blue, bromophenol blue, eosin Y, erythrosine B, fluorescein, methyl blue, methyl orange, thymol blue, resulting in the even penetration of carcinogenic fibers using hydrochloric acid.

A pH-stable dye which allows the penetration of hydrochloric acid into amorphically different carcinogenic fibers used for detection of sprayed asbestos or plastic mineral fibers for fireproofing components. In the process, the continuous colored penetration of the fiber layers is achieved synchronously with the decomposition process of the hydrochloric add. Thus, the progress of the penetration process can be estimated during the reconstruction work, and the task of removing the now spongy layers can be carried out with contrast agents of the following group consisting of organic and inorganic substances such as acridine orange, brilliant cresyl blue, bromophenol blue, eosin Y, erythrosine B, fluorescein, methyl blue, methyl orange, thymol blue, resulting in the even penetration of carcinogenic fibers using hydrochloric acid.

The invention is directed to systems and methods for the recycling of lithium ion batteries or the like. The system methods include comminution and destruction of used batteries, controlling the explosive reaction of the battery components during processing, and processing the materials into a suitable form for sampling and recycling.