A constructed wetland system enhanced by immobilized laccase, it includes wetland plants, a matrix layer and a water distribution system, the wetland plants growing on the matrix layers, the matrix layer including a laccase catalyst and gravel, the laccase catalyst and gravel are distributed at intervals in a modular manner in a ratio of 1:5, the water distribution system is arranged on both sides of the matrix layer. The laccase catalyst is prepared by using a co-immobilization technology. The system improves the removal effect of hard-to-degrade organic matter in wastewater, and solves the problems of toxicity and stress of the hard-to-degrade organic matter existing in the prior art and the problems of matrix adsorption saturation.

Method for preparing a natural organic macromolecular water treatment agent including: dissolving amylose corn starch in an alkali solution, stirring for 30 min, to obtain a suspension, freezing the suspension to fully frozen state, melting and dialyzing, to obtain a corn starch dispersion; mixing a modified flax fiber, the dispersion, nano-hybrid silica and distilled water, performing 800 W ultrasonication for 10 min, to obtain a treated suspension; taking an amount of a superabsorbent macromolecular resin with a certain shape, making it absorb water and swell into a solid hydrogel with the certain shape; mixing the solid hydrogel and the treated suspension, static defoaming, loading into a mold and solidifing, drying until the solid hydrogel is completely dehydrated, to obtain a hollow agent; spraying a catalytic degrading agent/toxin degrading agent on the surface of the hollow agent and/or the inner wall of holes thereof, to obtain the target agent.

The present subject matter relates to a composition for in-situ remediation of soil and aquifer comprising of a water miscible oil; a solvent (for dissolving the vegetable oil to form a solution); and a catalyst (selected from enzymes biocatalysts, particularly lipases, alkaline compounds, heat or combinations thereof). The present subject matter provides a process for the preparation of the composition and application of the same for surface remediation. Further, the present subject matter provides an in-situ alcoholysis remediation method to reduce contaminant concentrations in aquifer and soil by enabling the generation of both soluble and slowly fermenting electron donors required for the anaerobic remediation of organohalide compounds contaminating soils and groundwater. The method of remediation includes mixing an engineered water-soluble oil or water miscible oil with a solvent and adding a catalyst to groundwater to promote the formation of fatty acid alkyl esters, carboxylic acid salts and glycerol.

In some embodiments, the present invention provides a recombinant protein comprising an affinity tag configured to attach the recombinant protein to a silicate surface, fused to a hydrogen sulfide scavenging enzyme.

A system and a method for separation of ions from ions-containing medium is disclosed herein, that utilizes capacitive-faradaic fuel cells (CFFC) particles coated at least partially with catalysts capable of catalyzing redox reactions provided a reductant (fuel) and/or an oxidant, thereby polarizing the particles to more effectively absorb charged species (ions) from the water upon introducing, e.g., H.sub.2 gas or O.sub.2 gas, in the medium during the adsorption or regeneration. The same concept is utilized in a hybrid electrochemical cell for providing a system and a method for generating and converting electrochemical energy.

An in-situ mycoremediation system and process is provided, including a device with a rod casing having a top end, a bottom end, and a sidewall with one or more perforations, the sidewall defining an internal channel that extends from an intake opening on the top end to the one or more perforations, a sleeve that extends around at least part of the rod casing and that is slidable between at least a first position that covers the one or more perforations and a second position that at least partly uncovers the one or more perforations, and a plumbing line linked to the intake opening and configured to facilitate forcible injection of one more fungal mixtures and/or air via the one or more perforations when the sleeve is in the second position.

The present disclosure is generally related to the fields of biology, inorganic chemistry, organic chemistry, molecular biology, enzymology, chlorinated water treatment processes and the like. More particularly, certain embodiments are related to reducing cyanuric acid concentrations in aqueous liquids, such as chlorinated swimming pool water, chlorinated hot tub water and the like.

The present invention generally relates to systems and methods for the separation and removal of carbon dioxide from a liquid, for example, seawater. The systems include an extraction system that collects carbon dioxide from the seawater through a medium, and removes carbon dioxide from the medium; the extraction systems comprising a reactor and a membrane. Alternatively, the extraction system includes a reactor, a membrane and a catalyst.

The present disclosure relates to a porous liquid or a porous liquid enzyme that includes a high surface area solid and a liquid film substantially covering the high surface area solid. The porous liquid or porous liquid enzyme may be contacted with a fluid that is immiscible with the liquid film such that a liquid-fluid interface is formed. The liquid film may facilitate mass transfer of a substance or substrate across the liquid-fluid interface. The present disclosure also provides methods of performing liquid-based extractions and enzymatic reactions utilizing the porous liquid or porous liquid enzyme of the present disclosure.

The invention concerns new Bacillus strains which are able to degrade effectively inorganic nitrogen compounds and are further able to inhibit the growth of pathogens of aquatic animals.