Methods for isolating mesenchymal stromal cells from umbilical cord blood. The methods include providing a blood collection bag having raw umbilical cord blood contained therein, draining the umbilical cord blood from the blood collection bag, introducing a cell detachment solution into the blood collection bag to dissociate mesenchymal stromal cells adhered to the bag surface, thereby forming a mesenchymal stromal cell enriched fluid, and voiding the mesenchymal stromal cell enriched fluid into a collection apparatus for further processing and culturing.

The present disclosure relates to processes for desulfurizing hydrocarbon feedstocks. The processes may include introducing a feedstock comprising hydrogen sulfide to an absorber comprising a metal chelate to form a reduced metal chelate. The processes may further include introducing the reduced metal chelate to a photobioreactor comprising a phototrophic bacterium. The present disclosure also relates to apparatuses for desulfurizing hydrocarbon feedstock. An apparatus may include and absorber and a photobioreactor fluidly connected to the absorber. The photobioreactor may be an anaerobic vessel with a light source.

The present invention describes a fluid which is suitable for the decontamination of heat engines which can carry out both, at the same time, the catalytic reduction of oxides of nitrogen (NOx) contained in exhaust gases and assist in the regeneration of the particulate filter (PF). The invention also describes several embodiments of said fluid.

Gels that can react with air pollutants in air and methods for making said gels, are provided. The gels are useful for removing air borne pollutants from indoor environments.

A dynamically adjustable rate sulfur recovery process continuously calculates and adjusts sour gas stream operating pressure and/or flow rate to maximize sweet gas output, thereby improving efficiency. A corresponding desulfurization system may include a fixed-sized pressure vessel, a flow control valve that controls the rate of flow of a sour gas stream into the pressure vessel, a sensor that measures sulfur concentration in the sour gas stream, a reagent tank, an oxidizer tank, and a phase separator that separates sweet gas as a gaseous phase after hydrogen sulfide in the sour gas stream in the pressure vessel is converted to elemental sulfur, sulfur species, or both by contact with reagent from the reagent tank and oxidizer from the oxidizer tank. A PLC (programmable logic controller) continuously calculates updated flow rates based on sulfur concentration measurements from the sensor to achieve maximum sweet gas production.

Processes, methods, and apparatus for carbon sequestration utilizing catalysis schemes configured to provide high concentrations of hydrated CO.sub.2 in proximity with a sequestration agent are provided. Reactants are combined with catalyst such that at least two regions of controlled catalytic activity form encompassing at least the interface between a sequestration agent and an aqueous solution containing dissolved CO.sub.2. Suitable reactants include various sequestration agents, catalyst, and carbon dioxide dissolved in an aqueous solution (seawater, for example). Possible products include bicarbonate and metal cations.

Certain exemplary embodiments can provide a system, machine, device, manufacture, and/or composition of matter adapted for and/or resulting from, and/or a method for, activities that can comprise and/or relate to contacting an aerobic contaminated gas stream with a solution comprising approximately Ferric MGDA, the aerobic contaminated gas stream comprising hydrogen sulfide.

Residual hydrogenation catalyst produced from reduction of nitrile rubber is recovered by a chelation step using a chelating agent and a series of extraction using semi-coagulation with polar solvents and an optional washing steps for the separation of catalyst-chelating agent complex from hydrogenated nitrile rubber solution. The chelating agent is selected from xanthate, dithiocarbamate, and trithiocarbonate compounds.

An apparatus for removing air pollutants from the air is described. The apparatus contains a fan module and a chamber that can hold either activated carbon or a gel that reacts with air pollutants from air.

Certain exemplary embodiments can provide a system, machine, device, manufacture, and/or composition of matter adapted for and/or resulting from, and/or a method for, activities that can comprise and/or relate to contacting an aerobic contaminated gas stream with a solution comprising approximately Ferric MGDA, the aerobic contaminated gas stream comprising hydrogen sulfide.