The present invention relates to a process for in situ regeneration of spent filler aid including the steps of: a) circulating through a spent filter aid cake in a circulation loop a regenerating oil at a temperature of from 40 C. to 100 C., in a regenerating oil spent filter aid (v/w)ratio from 0,3/1 to 12/1; b) removing the regenerating oil from the treated spent filter aid cake; and recovering the regenerated filter aid,

In some embodiments, the present disclosure pertains to materials for use in CO.sub.2 capture in high pressure environments. In some embodiments, the materials include a porous carbon material containing a plurality of pores for use in a high pressure environment. Additional embodiments pertain to methods of utilizing the materials of the present disclosure to capture CO.sub.2 from various environments. In some embodiments, the materials of the present disclosure selectively capture CO.sub.2 over hydrocarbon species in the environment.

The mat is formed of a saprophytic fungal strain and/or budding yeast, and a mass of particles wherein the fungus is characterized in producing an enzyme capable of breaking down polycyclic aromatic hydrocarbons. In a second embodiment, a mass of pellets is made from the mat for use in absorbing liquid animal waste.

A moisture scavenger composition to address the processing of moisture sensitive materials or high moisture content materials in melt processable feed stocks. The moisture scavenger includes a desiccant, an elastomeric dispersant, and an optional hydrophillic synergist.

A process for producing a cellulose based sorbent material for the removal of water soluble contaminants from water and other aqueous solutions comprising reacting one or more biomass based cellulose containing raw materials with dilute phosphoric acid where the reaction mixture containing said cellulose containing materials is heated to a reaction temperature and after completion of the reaction time, separation of the dilute phosphoric acid solution from the remaining insoluble raw material, neutralization of the solution by means of a suitable neutralizing agent resulting in precipitation of the modified cellulose, and then separating, washing and removing excess water from the resultant precipitate.

The present invention relates to a process for in situ regeneration of spent filter aid including the steps of: a) circulating through a spent filter aid cake in a circulation loop a regenerating oil at a temperature of from 40 C. to 100 C., in a regenerating oil/spent filter aid (v/w) ratio of from 0.3/1 to 12/1; b) removing the regenerating oil from the treated spent filter aid cake; and c) recovering the regenerated filter aid.

Compositions and methods for treating contaminated soil and/or ground water in situ. The compositions and methods comprise stabilized forms of colloidal remediation agents that are used to remediate contaminants, namely, organic and inorganic contaminants. The compositions and methods of the present invention are operative to transport particulate remediation agent materials through a matrix of soil and groundwater upon application by injection, gravity feed, or percolation into soil and groundwater, which in turn sequester, destroy or stabilize contaminants out of water to thus decontaminate groundwater in place without the cost or disruption associated with digging the contaminated soil and groundwater out of the ground for on-site purification or disposal at a hazardous waste landfill.

The invention relates to a system and a method for treating waste water using a passive phosphorus-capture filter lined with wood activated by the impregnation of a metal in the form of hydroxide, more specifically aluminum hydroxide or iron hydroxide. This system demonstrates phosphorus removal performances which are very closely linked to the release of iron and which support the observation that iron releases follow a cyclical trend. The method according to the invention also clearly demonstrates the cyclical nature of the reduction of phosphorus, directly linked to the same cycle of iron release at the outlet. When the medium is aerobic, it can precipitate the released iron in the form of hydroxide and thereby limit the release of iron into the outflow water and consequently its residual phosphorus. This model thus allows the service life of the system to be extended, while simultaneously taking advantage of the precipitation/solubilization cycle of the iron observed in the medium under reducing conditions.

Novel electrospun nanofibers and nanofibrous membranes, methods of manufacturing the same, and methods of using the same are provided. The nanofibers include a cactus mucilage, such as mucilage from Opuntia ficus-indica. An organic polymer can be added to the cactus mucilage before electrospinning. The nanofibrous membranes can be used in water filtration.

Compositions, systems and methods of removing ammonia from fish storage systems are presented. A chemical water conditioner comprised of sodium formaldehyde bisulfite, cornstarch, dye and alcohol was found to have a high ammonia removal efficiency in seawater. A combination of this chemical water conditioner with modified chabazite and phosphate buffer exhibited high ammonia removal efficiency in both seawater and freshwater.