The present disclosure pertains to a system configured to prepare and use prediction models for controlling contaminants of a liquid. Some embodiments may: sense, via a sensor, a magnified image of a sample of the liquid; identify at least one shape in the image; determine a relative predominance of microscopic life forms within at least a portion of the image; and generate a report indicating any required corrective action based on the identification and the determination.

Methods are described that reduce the amount of organic matter in water, including reducing an amount of total organic carbon in water. The method includes adding powder activated carbon to the water; mixing the powder activated carbon in the water; and separating the powder activated carbon from the water. Also described are a method for reducing glycol content in water containing glycols, and a method for reducing glycol content in a steel mill wastewater stream containing glycols.

An incinerator system includes an evaporator tank having a fluid inlet, a steam vent, and an evaporation cavity and a heating assembly having a plurality of heating rods mounted on a rod spacing mechanism and disposed in the evaporation cavity of the evaporator tank. The rod spacing mechanism is configured to move the plurality of heating rods within the evaporation cavity. The incinerator system also includes a sensor system having a plurality of sensors positioned to perform one or more sensor measurements in the evaporation cavity and a programmable logic controller communicatively coupled to the sensor system and the heating assembly. The programmable logic controller is configured to instruct the rod spacing mechanism to move at least one of the plurality of heating rods based on the one or more sensor measurements.

A method of degrading 1,4-dioxane in the wastewater produced during the manufacture of alkyl ether sulfates is disclosed. The method includes the steps of (a) mixing from 100 to 10,000 ppm, preferably 1,000 to 4,000 ppm of ozone with the wastewater; (b) introducing H.sub.2O.sub.2 into the wastewater in an amount of 0.01 to 10, preferably 0.1 to 0.5 molar equivalents of H.sub.2O.sub.2 to ozone, and (c) mixing the ozone, H.sub.2O.sub.2, and wastewater to generate hydroxyl radicals reactive with the 1,4-dioxane, without the addition of a metal catalyst. The hydroxyl radicals react with the 1,4-dioxane and degrade it into carbon dioxide, water and/or carbonate. The method is effective to reduce a concentration of 1,4-dioxane in the wastewater from a range of about 10 ppm to about 1000 ppm of dioxane down to less than 5 ppb of 1,4-dioxane after treatment. The method is also effective for removing hydrocarbon species that may be present in the wastewater.

The present inventions are directed to systems and methods to increase the removal of PFAS and other recalcitrant organic compound contaminants from water, and particularly ground and drinking water, using sub-micron powdered activated carbon.

A process is disclosed for treating water, such as wastewater, with air or oxygen-enriched air under alkaline conditions to decompose and remove acrolein and acrolein byproducts from the water and/or wastewater. The process is able to lower the concentration of acrolein and acrolein byproducts from water to a sufficiently low level suitable for discharge to a municipal sewer collection system with reduced occurrence of the decomposition by-products of acrolein converting back to acrolein in the water. One embodiment of the process treats contaminated water containing acrolein with air or oxygen-enriched air by sparging or bubbling air or oxygen-enriched air through the contaminated water. The contaminated water can be treated with air or oxygen-enriched air where the contaminated water is initially adjusted to a pH greater than 7.0 for a time to convert at least a portion of the acrolein to 3-hydroxypropanal to obtain fully treated water and prevent conversion of 3-hydroxypropanal back to acrolein.

Highly mesoporous activated carbon products are disclosed with mesoporosities characterized by mesopore volumes of 0.7 to 1.0 cubic centimeters per gram or greater. Also disclosed are activated carbon products characterized by a Molasses Number of about 500 to 1000 or greater. Also disclosed are activated carbon products characterized by a Tannin Value of about 100 to 35 or less. The activated carbon products may be further characterized by total pore volumes of at least 0.85 cubic centimeters per gram and BET surface areas of at least about 800 square meters per gram. The activated carbon product may be derived from a renewable feedstock.

Methods and compositions for the adsorptive removal of methyl tertiary butyl ether (MTBE) from contaminated water sources and systems. The compositions contain acid-treated fly ash particles containing carbon, oxygen, and sulfur, and silver oxide nanoparticles having diameters in a range of 1-10 nm such that the silver oxide nanoparticles are present on the surface and in pore spaces of the acid-treated fly ash particles. The composition is in the form of particles having sizes in a range of 100 nm to 2.5 μm. Methods of preparing and characterizing the adsorbents are also provided.

The present invention relates to a method for reducing the content of at least one pollutant selected from the group consisting of nitrobenzene, formate, phenol, 4,4′-Methylenedianilinc (MDA) and aniline of hypersaline wastewater, said method comprising the steps of (a) providing a composition A comprising hypersaline wastewater and said at least one pollutant, and (b) contacting composition A with Haloferax mediterranei cells, thereby generating a composition B comprising said composition A and cells of said at least one halophilic microbial strain. The present invention further concerns a method for the production of chlorine and sodium hydroxide. Further encompassed by the present invention is a composition comprising hypersaline wastewater, said at least one pollutant, and Haloferax mediterranei cells.

A mesoporous ozonation catalyst including a cerium-titanium-zirconium composite oxide. The catalyst is in the form of a solid spherical particle having a diameter of between 0.7 and 1.2 mm. The solid spherical particle exhibits lattice fringes under transmission electron microscope, and the lattice fringes have a spacing between 0.332 and 0.339 nm.