University of Louisiana at Lafayette

Rafael Hernandez

Mark E Zappi

Wayne Sharp

Andrei Chistoserdov

William Chirdon

Daniel Gang

Emmanuel Revellame

Gopi Chand Tripuraneni

Rakesh Bajpai

Dhan Fortela

William E Holmes

Liew Go

Alex Zappi

Don Begneaud

Thomas Broussard

Chelsea Trahan

A rack for sanitizing or cleaning medical or personal protective equipment is claimed herein. The rack has at least two stringers that run the length of the rack. The rack has at least two vertical grates that are spaced apart from each other along the stringers. The spacing between the grates will be sufficient such that a standard respiratory mask (e.g. N95) may be placed between two adjacent grates and be held in a vertical orientation.

Rack for treatment of respiratory masks

A system and method for treatment of biomass originating from wastewater treatment biosolids to obtain valuable adhesives and composite materials is described herein. Some embodiments do not require purification of a biomass product or residue to produce an adhesive.

Production of adhesives and other glue-like materials from unextracted sewage treatment plant sludges, animal manures and animal manure-based sludges, and bacterial/fungal cells and cell components s as derived from culturing operations

In order to substantially reduce friction during drilling operations, specialized lubricants need to be added to drilling fluid recipes. In general, lubricants reduce friction by forming a thin film of liquid that separates the solid surfaces in contact. The primary objective of this research is to evaluate the performance of enhanced activated sludge (EAS) as a lubricant in drilling fluids. EAS is activated sludge rich in lipids. The mixed consortium of microorganism in waste water treatment facilities in grown under a high carbon/nitrogen ratio to trigger lipid accumulation. Performance of EAS as drilling fluid additive was compared with commercial lubricants in terms of lubricity and flow properties. Lubricants were evaluated using water-based drilling mud at lubricant concentrations of 1.78, 3.11, 4.43, and 6.17 pounds per barrel (ppb). Experiments were carried out in a standard lubricity meter. The lubricity meter tests the ability of the lubricant in the drilling mud to reduce friction. Other parameters measured were plastic viscosity, gel strength, fluid loss, mud cake thickness, sand content, methylene blue test (MBT), alkalinity, and chlorides. These findings show that EAS will improve the properties of water-based drilling mud.

Drilling mud with enhanced activated sludge additive

This invention presents a novel corrosion inhibitor. In the preferred embodiment, the inventive corrosion inhibitor comprises extracellular polymeric substances (EPS). In one embodiment, the invention presents a novel EPS corrosion inhibitor using waste activated sludge (WAS). In this embodiment, WAS is heated to release EPS from the microbial mixture.

Corrosion inhibitor

A Biorefinery System (BIOSYS) that effectively treats all human activity-derived waste (black water, grey water, and food waste streams) using biological systems and that produces as process by-products: recovered potable water, liberated free oxygen, edible protein cake (with and without lipids), soil amendments, and machinery lube oils. Additionally, the system captures and chemically binds carbon dioxide into microbial cells and associated by-products, thus producing recovered usable returned cabin air.

Biorefinery method and system for isolated environments

Enhanced activated sludge as drilling mud additive

Growing community of inventors

Lafayette, LA, United States of America

Rafael Hernandez