Abstract:
A method for using a mixture of an organic polymer combined with an inorganic polymer is provided. When the mixture is combined with a liquid material, such as a urine from a patient that is contaminated with a dangerous cytotoxic drug, a multi-step process occurs that sequester the dangers. The combined material forms a stable matrix in which the cytotoxic chemotherapy drug is destroyed. Due to the combination of polymers, the multi-step process will occur without any mechanical mixing or stirring, as the organic polymer facilitates dispersal of the inorganic polymer through-out the combined material.
Abstract:
Compositions with sodium carboxymethylcellulose and hydroxyethyl cellulose are provided for environmentally safe disposal of water-based latex and acrylic formulations. Improved methods for environmentally safe disposal of water-based latex and acrylic formulations are provided as well.
Abstract:
[Object] To efficiently recover tungsten from an object containing tungsten by a simple treatment process using a microorganism with reduced environmental load.[Solution] A method for recovering a tungsten compound is provided which includes the step of preparing a tungsten compound solution in which tungsten-containing polyatomic ions are dissolved, by eluting the metal component of an object containing tungsten into an alkaline solution; the adsorption step of adsorbing the tungsten-containing polyatomic ions to a microorganism by introducing the microorganism to the tungsten compound solution and adjusting the tungsten compound solution to an acidic level; and the collecting and washing step of collecting the microorganism to which the tungsten-containing polyatomic ions are adsorbed and washing the microorganism.
Abstract:
Various techniques are provided in relation to flocculation and/or dewatering of thick fine tailings, with shear conditioning of flocculated tailings material in accordance with a pre-determined shearing parameter, such as the Camp Number. One example method of treating thick fine tailings including dispersing a flocculant into the thick fine tailings to form a flocculating mixture; shearing the flocculating mixture to increase yield stress and produce a flocculated mixture; shear conditioning the flocculated mixture to decrease the yield stress and break down flocs, the shear conditioning being performed in accordance with the pre-determined shearing parameter to produce conditioned flocculated material within a water release zone where release water separates from the conditioned flocculated material. The conditioned flocculated material can then be subjected to dewatering, for example by depositing, thickening or filtering. The design, construction and/or operation of a flocculation pipeline assembly can be facilitated.
Abstract:
A method for recycling oil contaminated soil is disclosed as well as a method for testing and selecting soil and adding the oil contaminated soil to the asphalt used in road construction. The oil contaminated soil has a saturation of oil between about 2% and 4%. The demoisturizing of soil was done prior to conducting a sieve analysis and obtained the percentage of oil contamination in the soil. After testing, the oil contaminated soil is used as a replacement for up to 50% of the mineral aggregates used in asphalt concrete for road construction.
Abstract:
The present disclosure describes an agricultural blend and a process of forming an agricultural blend. The agricultural blend includes a slag by-product from a process having a slag other than stainless steel slag or includes 11 atomic % silicon from a soluble compound and total silicon of less than about 30 atomic % silicon or greater than about 39 atomic % silicon. The process includes producing a slag by-product and blending the slag by-product with a liquid binder system to form the agricultural blend, the slag not being stainless steel slag.
Abstract:
A Waste Electrical and Electronic Equipment (WEEE) brick adapted to treat a bulk WEEE material for sustainable environmental reutilization is disclosed. The brick comprises a first part and a second part such that the first part is sequentially filled with a binder/filler material followed by filling with a WEEE material. The second part is securely coupled to the first part to form the WEEE brick. A process for preparation of Waste Electrical and Electronic Equipment (WEEE) brick is also disclosed.
Abstract:
Methods are disclosed for stabilizing a heavy metal in a heavy metal bearing paint residue to reduce leaching of the heavy metal from a waste subject to natural or induced leaching conditions by addition of environmentally safe, worker safe, and multi-media compatible stabilizing agent comprising beef bone meal. Beef bone meal is added to the blast media, and provides effective reduction of heavy metal content in waste leachate and effectively removes paint residue without causing visible embedding on the substrate surface, which meets the SSPC SP10 criteria for surface preparation prior to painting. The methods described herein may be used outside of or within an OSHA containment building or collection device. The resultant stabilized paint residue and spent blast media mixture is suitable for on-site reuse, off-site reuse, or disposal as RCRA non-hazardous waste.
Abstract:
Methods are disclosed for stabilizing a heavy metal in a heavy metal bearing paint residue to reduce leaching of the heavy metal from a waste subject to natural or induced leaching conditions by addition of environmentally safe, worker safe, and multi-media compatible stabilizing agent comprising beef bone meal. Beef bone meal is added to the blast media, and provides effective reduction of heavy metal content in waste leachate and effectively removes paint residue without causing visible embedding on the substrate surface, which meets the SSPC SP10 criteria for surface preparation prior to painting. The methods described herein may be used outside of or within an OSHA containment building or collection device. The resultant stabilized paint residue and spent blast media mixture is suitable for on-site reuse, off-site reuse, or disposal as RCRA non-hazardous waste.
Abstract:
An assembly and method for processing human waste includes providing a supporting base having an opening within which a waste reservoir is affixed. The assembly may be installed on or below a rim of a toilet bowl. Solidification and pathogen killing materials are provided. The materials are deposited in the reservoir either prior to or upon accumulation of waste in the reservoir. The reservoir with the solidified waste is then sealed and transported to a collection facility.