Abstract: The system and method of improved denitrification of wastewater using an external carbon source composition. The composition is a mixture that comprises a diluent and a surfactant. Optionally, the mixture may comprise additional components. The mixture may comprise polysorbate 80 as the surfactant and crude glycerin as the diluent. The additional component may be the result of a lack of purity in the diluent, or it may be added separately. In some cases, the surfactant may be degraded.

Abstract: The disclosure is directed to an integrated glove including first and second substrate layers. The first substrate layer overlies the second substrate layer to define a volume therebetween configured to receive a wearer's hand. The integrated glove also includes first and second gas impermeable barrier layers respectively melt laminated to the first and second substrate layers. The first and second gas impermeable barrier layers extend beyond an outer contour of the first and second substrate layers and are melt laminated together to form a seam portion. The integrated glove has a breakthrough time greater than 60 minutes when exposed to NFPA 1991 industrial chemicals.