A process is disclosed for treating water, such as wastewater, with ozone under alkaline and acidic 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 ozone by sparging or bubbling ozone through the contaminated water. The contaminated water can be treated with ozone 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 a partially treated water. The pH of the partially treated water is then adjusted to a pH below 7.0 while continuing the ozone treatment for a time sufficient to react with and decompose the 3-hydroxypropanal to inhibit the conversion of 3-hydroxypropanal back to acrolein.

The disclosure provides a method for evaluation of removal of nitrogen-containing organic matter from the wastewater. The method includes: 1) pretreating a wastewater sample from a wastewater treatment plant; enriching nitrogen-containing organic matter in the wastewater sample with a solid-phase extraction cartridge; separating the nitrogen-containing organic matter from a substrate and disruptors of the wastewater sample, and collecting the nitrogen-containing organic matter; 2) detecting and analyzing the nitrogen-containing organic matter collected in 1) with a Fourier-transform ion cyclotron resonance mass spectrometer, thereby obtaining mass spectra of the nitrogen-containing organic matter; 3) preprocessing peak data of the mass spectra of the nitrogen-containing organic matter in each wastewater sample; setting the nitrogen-containing organic matter corresponding to the peak data as a global variable; arranging wastewater samples into cross-sectional data according to wastewater treatment processes; creating an assessment matrix for evaluating removal of the nitrogen-containing organic matter.

A hydrogen peroxide removing apparatus for removing hydrogen peroxide contained in water to be processed includes: anode and cathode; and hydrogen peroxide removal chamber provided between anode and cathode and at least partially filled with a metal catalyst with hydrogen peroxide decomposition ability, wherein a DC voltage is applied between anode and cathode.

A hydrogen peroxide removing apparatus for removing hydrogen peroxide contained in water to be processed includes: anode and cathode; and hydrogen peroxide removal chamber provided between anode and cathode and at least partially filled with a metal catalyst with hydrogen peroxide decomposition ability, wherein a DC voltage is applied between anode and cathode.

The present invention describes a method of capturing a fluorinated carbon compound located within a liquid, the method comprising contacting the fluorinated carbon compound with a block copolymer having a backbone comprising a hydrophilic block and a fluoropolyether block, wherein the fluorinated carbon compound binds to and is captured by the block copolymer.

Potable water is produced by removing contaminants such as toxic, fluorinated perfluoroalkyl substances (PFAS).

Potable water is produced by removing contaminants such as toxic, fluorinated perfluoroalkyl substances (PFAS).

Embodiments of the present invention are generally related to a system and method to remove hydrogen sulfide from sour water and sour oil. Particularly, hydrogen sulfide is removed from sour water and sour oil without the need for special chemicals, such as catalyst chemicals, scavenger chemicals, hydrocarbon sources, or a large-scale facility. The system and method in the present invention is particularly useful in exploratory oil and gas fields, where large facilities to remove hydrogen sulfide may be inaccessible. The present invention addresses the need for safe and cost-effective transport of the deadly neurotoxin. Particular embodiments involve a system and method that can be executed both on a small and large scale to sweeten sour water and sour oil.

Embodiments of the present invention are generally related to a system and method to remove hydrogen sulfide from sour water and sour oil. Particularly, hydrogen sulfide is removed from sour water and sour oil without the need for special chemicals, such as catalyst chemicals, scavenger chemicals, hydrocarbon sources, or a large-scale facility. The system and method in the present invention is particularly useful in exploratory oil and gas fields, where large facilities to remove hydrogen sulfide may be inaccessible. The present invention addresses the need for safe and cost-effective transport of the deadly neurotoxin. Particular embodiments involve a system and method that can be executed both on a small and large scale to sweeten sour water and sour oil.

The disclosure provides sorbents and sorbents that improve the adsorption of per- and polyfluoroalkyl substances (PFAS). The sorbents and sorbents have microstructures that efficiently adsorb PFAS, as shown by the combination of high volumetric iodine number and high volumetric molasses number. Methods of manufacturing and methods of use are further provided.