摘要:
The present disclosure relates to a multi-step method for processing peroxygen solutions for reuse or disposal. The method uses an enzyme and a reducing agent.
摘要:
The invention relates to a method for modifying silicic crystalline materials consisting i) in bringing a silicic crystalline material into contact with the aqueous solution of alkali metal silicate also comprising an ion complexing additive and ii) in evaporating water. A composite obtainable by said method and the use of the aqueous solution of alkali metal silicate for inerting the silicic crystalline materials, in particular asbestos are also disclosed.
摘要:
A system and method for conversion of alkali metals, heavy metals, halogens, and sulfur into mineral products. The system includes a single reaction vessel (12). To begin the process, co-reactants (13) such as lime and clay are mixed with waste feeds containing alkali metals, heavy metals, halogens, and sulfur. This mixture is then introduced into the reaction vessel. The reaction vessel is operated under reducing conditions. After the mineral products are allowed to form, they are collected from the reaction vessel (12).
摘要:
A padding tape for use on handles of sport tools, particularly bicycle handlebars, comprising a main body (2) formed by at least one substrate (3) of polymeric material having a top surface (4) and a bottom surface (5). The bottom surface (5) is designed to contact a handle (B). The polymeric material is a viscoelastic material having a high adhesive properties. The top surface (4) of this substrate is at least partly coated with a layer of paint (6) having high anti-adhesive properties, so that the padding tape only sticks with the bottom surface (5). A grip assembly for use on handles of sport tools, particularly bicycle handlebars, comprising at least one padding tape as described above, and at least one fibrous wrapping tape (8), designed to cover such tape. A process for making the above tape.
摘要:
A method for decontaminating and neutralizing solid residue remaining in a munition shell of an abandoned chemical weapon includes the steps of dissolving the solid residue using an organic solvent to obtain a solid residue solution, and neutralizing the solid residue solution with an alkaline solution and an oxidant.
摘要:
A waste processing method of decomposing an organic substance contained in organic wastes by holding a mixture of the organic wastes and a medium, which is in a supercritical state thereof, for a pre-determined time period, wherein the hydrogen ion concentration of the medium is 10 -4 mol or more per 1kg of the medium.
摘要:
A method for treatment of halogen-containng waste material, in particular PVC-containing waste material, is disclosed, wherein the waste material in a decomposition step is heated in a reaction zone in a substantially closed system essentially without addition of water to a temperature between 150 and 750° C, preferably 250 - 350 C°, in the presence of a halogen-reactive compound selected from alkali and alkaline earth metal hydroxides, alkali and alkaline earth metal carbonates and mixtures thereof, so as to establish a controllable autogeneous pressure substantially above atmospheric pressure, in a sufficient reaction time to convert essentially all halogen present in the waste material to alkali or alkaline earth metal halides, said closed system preferably also comprising a condensation zone, where water vapour and volatile compounds liberated from the waste material are condensed. The remanence obtained in the decomposition step is washed with an aqueous solvent, preferably pure water, and the soluble and insoluble parts of the remanence are separated. By this method the halogen is removed from the waste without uncontrolled emission of halogen-containing acids to the environment.
摘要:
The invention relates to a mixture and a method for treating waste materials, to the use of said mixture during treatment of waste materials and to waste materials treated according to said method. The inventive mixture comprises (A) at least one zinc salt of a saturated or unsaturated, aliphatic or aromatic carboxylic acid, (B) at least one calcium salt of a saturated or unsaturated, aliphatic or aromatic carboxylic acid, (C) at least one water repellent agent, (D) at least one aminoalcohol and (E) NH3.
摘要:
Disclosed herein are a solid waste treatment agent comprising phosphorous acid or a derivative thereof and/or hypophosphorous acid or a derivative thereof, or phosphorous acid or a derivative thereof and/or hypophosphorous acid or a derivative thereof, and an aluminum compound and/or a titanium compound, and a method of treating solid waste, which comprises adding the solid waste treatment agent to solid waste containing harmful metals and/or organic chlorinated compounds such as dioxins and PCB to make the solid waste harmless. When the solid waste treatment agent comprising phosphorous acid or a derivative thereof and/or hypophosphorous acid or a derivative thereof, and titanium oxide, or comprising phosphorous acid or a derivative thereof and/or hypophosphorous acid or a derivative thereof, titanium oxide and an aluminum compound is used as a solid waste treatment agent to treat solid waste under irradiation of rays, the solid waste can be effectively made harmless even when the treatment is conducted at a relatively low temperature.