Abstract: Embodiments herein concern compositions, methods and uses for harvesting suspension cultures or decontaminating waters. In certain embodiments, suspension microorganism cultures can comprise algal cultures. In some embodiments, harvesting suspension cultures may include using a composition capable of interacting with the culture in order to separate the culture from a liquid or media.

Abstract: Particular aspects provide a method for recovering phosphate, comprising: obtaining an effluent or wastewater, etc. having calcium-sequestered phosphate; adding to the effluent or wastewater a calcium chelating or sequestration agent suitable to chelate or sequester Ca++ ions from the calcium-sequestered phosphate to facilitate release of phosphate from the calcium-sequestered phosphate; transferring, facilitated by said Ca++ ion capture and in the presence of sufficient concentrations of NH4+ and Mg2 ions, of the phosphate into struvite (magnesium ammonium phosphate hexahydrate or MgNH4PO4.6H2O), or hydrated magnesium ammonium complex of phosphate; and recovering the struvite, or the formed hydrated magnesium ammonium complex. Preferably, the method further comprises acidification of the effluent or wastewater to facilitate release of Ca++ ions from the calcium-sequestered phosphate and chelation of sequestration of the Ca++ ions by the calcium chelating or sequestration agent.

Abstract: Embodiments herein concern compositions, methods and uses for harvesting suspension cultures or decontaminating waters. In certain embodiments, suspension microorganism cultures can comprise algal cultures. In some embodiments, harvesting suspension cultures may include using a composition capable of interacting with the culture in order to separate the culture from a liquid or media.

Abstract: An economical, integrated system works in series with anaerobic digestion of animal waste to recover nitrogen and phosphorous, while also scrubbing the produced biogas.

Abstract: An economical, integrated system works in series with anaerobic digestion of animal waste to recover nitrogen and phosphorous, while also scrubbing the produced biogas.

Abstract: Particular aspects provide a method for recovering phosphate, comprising: obtaining an effluent or wastewater, etc. having calcium-sequestered phosphate; adding to the effluent or wastewater a calcium chelating or sequestration agent suitable to chelate or sequester Ca++ ions from the calcium-sequestered phosphate to facilitate release of phosphate from the calcium-sequestered phosphate; transferring, facilitated by said Ca++ ion capture and in the presence of sufficient concentrations of NH4+ and Mg2 ions, of the phosphate into struvite (magnesium ammonium phosphate hexahydrate or MgNH4PO4.6H2O), or hydrated magnesium ammonium complex of phosphate; and recovering the struvite, or the formed hydrated magnesium ammonium complex. Preferably, the method further comprises acidification of the effluent or wastewater to facilitate release of Ca++ ions from the calcium-sequestered phosphate and chelation of sequestration of the Ca++ ions by the calcium chelating or sequestration agent.

Abstract: A method of CMP of a substrate surface includes providing a polishing pad having a polishing layer, that may be substantially free of abrasive particles, with a functional group chemically bonded (covalent or ionic) to the polishing layer. The functional group acts as an activator or catalyst for a compound of a polishing slurry to exhibit a higher material removal rate for removing selected portions of the surface of the substrate than exhibited in CMP of a substantially identical substrate in the presence of a substantially identical polishing slurry and a polishing pad wherein the substantially identical polishing layer does not have the functional group. The functional group may be derived from a compound comprising a polyamine, a polyelectrolyte, and/or an amino acid. A method of making the CMP pad and the CMP pad formed thereby is also disclosed.

Abstract: A method of CMP of a substrate surface includes providing a polishing pad having a polishing layer, that may be substantially free of abrasive particles, with a functional group chemically bonded (covalent or ionic) to the polishing layer. The functional group acts as an activator or catalyst for a compound of a polishing slurry to exhibit a higher material removal rate for removing selected portions of the surface of the substrate than exhibited in CMP of a substantially identical substrate in the presence of a substantially identical polishing slurry and a polishing pad wherein the substantially identical polishing layer does not have the functional group. The functional group may be derived from a compound comprising a polyamine, a polyelectrolyte, and/or an amino acid. A method of making the CMP pad and the CMP pad formed thereby is also disclosed.