摘要:
According to one embodiment, a treatment solution is provided. The treatment solution is used for treating halosilanes having a cyclic structure. The treatment solution includes at least one of an inorganic base or an organic base and being basic.
摘要:
According to one embodiment, a treatment solution is provided. The treatment solution is used for treating a byproduct stemming from a process of depositing a silicon-containing material on a member using a gas which includes silicon and halogen. The treatment solution includes at least one of an inorganic base or an organic base and being basic.
摘要:
The asbestos waste neutralization device (10) comprises: an acid tank (23); a vessel (16) containing a diluted acid solution, into which waste comprising asbestos is thrown, said acid solution neutralizing the asbestos waste; a filtration unit (21) for separating, at the end of the reaction for neutralizing the waste, the inert solid from the acid solution liquid phase; a unit (22) for regenerating the etching acid solution that adjusts the hydrogen potential of the extracted liquid phase by adding concentrated acid contained in the acid tank; and a means for transferring the regenerated solution into the vessel.
摘要:
Tissue digestion methods and apparatuses that provide easy, safe and inexpensive disposal of biological tissue, for example animal carcasses and human cadavers, are disclosed. Embodiments include tissue digesters with elongated cylindrical vessels for holding digestive fluid and baskets for holding tissue within said vessel. Embodiments include baskets with perforations to allow circulation of digestive fluid around and about the tissue. In one form the basket holding the tissue is horizontally loaded into a horizontally disposed vessel. The vessel is then tilted to a more vertical orientation. Gravity helps to collect the tissue fragments in a sloped collection region of the basket, which is located near a mixer to allow continual agitation of the tissue fragments as they are digested. The tissue digester can operate efficiently at lower temperature and pressures, is mechanically less complicated, consumes less power and is less expensive to manufacture than conventional tissue digesting systems.
摘要:
A pouch for internal mixture of segregated reactants includes an outer containment envelope with a sealed reactant compartment inside. A middle shear strip and two outer strips, together defining two shear lines, are connected to the reactant compartment. The outer strips are folded under the reactant compartment with their tips anchored to the containment envelope. The middle strip extends away from the reactant compartment and through a slit in the containment envelope. Pulling on the middle strip causes the shear lines to lengthen until the reactant compartment is shorn open to release a reactant. A permeable second reactant compartment containing a second reactant may also be disposed inside the containment envelope, and may include a slit through which the middle strip passes. The reaction in the pouch may be exothermic and the pouch may be applied to any object to be heated such as a wet wipes dispenser.
摘要:
The present invention relates to perpropionic acid compositions that are stable in a basic medium, to a method for stabilizing the perpropionic acid, and also to the use of a specific combination of compounds for stabilizing the perpropionic acid in a basic medium.
摘要:
A method for insolubilizing and stabilizing a heavy metal contained in a waste, which comprises melt-kneading the waste (A) containing a heavy metal together with an alkali metal compound or alkaline earth metal compound (B) and either sulfur (C) or a sulfide (D) optionally further with a metal salt (E) which has a higher standard electrode potential than those of cations of ingredient (B) or (E) in the presence of a nonaqueous medium, and then cooling the melt to solidify it. Thus, the heavy metal contained in the waste can be efficiently immobilized and prevented from dissolving out.
摘要:
A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30 % by weight of phosphoric acid, and from about 0.1 to about 4 % by weight of a source of fluoride ions. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition also is disclosed.