A porous carbon material having a value of a specific surface area by a nitrogen BET method of 110.sup.2 m.sup.2/g or more, a volume of fine pores by a BJH method of 0.3 cm.sup.3/g or more, and a particle size of 75 m or more, alternatively, a porous carbon material having a value of a specific surface area by a nitrogen BET method of 110.sup.2 m.sup.2/g or more, a total of volumes of fine pores having a diameter of from 110.sup.9 m to 510.sup.7 m, obtained by a non-localized density functional theory method, of 1.0 cm.sup.3/g or more, and a particle size of 75 m or more.

A magnetic polymer adsorption material, preparation method and use thereof, which relate to the field of magnetic polymer materials. The preparation method comprises: (1) preparing magnetic nanoparticles; (2) dissolving the magnetic nanoparticles in a pore-forming agent, adding N-vinylpyrrolidone, divinylbenzene and an initiator respectively, and mixing uniformly; (3) adding an emulsifier and a dispersant into an aqueous solution; adding a part of the oil phase solution prepared in step (2) at the temperature below 60 C., and adding the rest of the oil phase solution when the temperature rises to 60 C. or above, reacting with stirring, precipitating and filtering the reacted solution, washing and drying the precipitate, and finally obtaining the magnetic polymer adsorption material. The material has the particle size of 2-100 m, the magnetization of 5-19.5 emu/g and the specific surface area of 210-950 m.sup.2/g, and can be applied to the adsorption of inorganic and organic matters in solutions, the controlled release of inorganic and organic matters, and the separation of different substances.

Methods of treating water having organic contaminants are disclosed. The methods include performing a first treatment on the water effective to oxidize a predetermined amount of the organic contaminant and electrochemically treating the water. The methods include introducing a hydrogen peroxide (H.sub.2O.sub.2) containing reagent into the water, allowing the H.sub.2O.sub.2 containing reagent to react with the organic contaminant for a reaction time effective to oxidize a predetermined amount of the organic contaminant, and electrochemically treating the water. Systems for treating water are also disclosed. The systems include an electrochemical cell, a source of an H.sub.2O.sub.2 containing reagent upstream from the electrochemical cell, and a controller operable to regulate a reaction time of the H.sub.2O.sub.2 containing reagent in the water and a potential applied to the electrochemical cell.

Methods of passively sampling PFAS in the environment, PFAS sorbents, apparatus and systems (apparatus plus conditions) for sampling groundwater, porewater, and surface water are described.

Copper-boron-ferrite (CuBFe) composites may be prepared and immobilized on graphite electrodes in a silica-based sol-gel, e.g., from rice husks. Different bimetallic loading ratios can produce fast in-situ electrogeneration of reactive oxygen species, H.sub.2O.sub.2 and .OH, e.g., via droplet flow-assisted heterogeneous electro-Fenton reactor system. Loading ratios of, e.g., 10 to 30 wt. % Fe.sup.3+ and 5 to 15% wt. Cu.sup.2+, can improve the catalytic activities towards pharmaceutical beta blockers (atenolol and propranolol) degradation in water. Degradation efficiencies of at least 99.9% for both propranolol and atenolol in hospital wastewater were demonstrated. Radicals of .OH in degradation indicate a surface mechanism at inventive cathodes with correlated contributions of iron and copper. Copper and iron can be embedded in porous graphite electrode surface and catalyze the conversion of H.sub.2O.sub.2 to .OH to enhance the degradation. Inventive cathodes can be stable catalytically after 20 or more cycles under neutral and acidic conditions.

Carbon-doped graphitic carbon nitride (g-C.sub.3N.sub.4) compositions are synthesized from the chemical precursors melamine, cyanuric acid and barbituric acid. Phosphorus-doped g-C.sub.3N.sub.4 compositions are synthesized from the chemical precursors melamine, cyanuric acid and etidronic acid. Carbon- and phosphorus-doped g-C.sub.3N.sub.4 compositions, when in the presence of UV or visible light, can be used in water treatment systems to photocatalytically degrade persistent organic micropollutants such as pharmaceuticals and personal care products (PPCPs), endocrine disrupting compounds (EDCs), pesticides, and herbicides. Carbon- and phosphorus-doped g-C.sub.3N.sub.4 compositions can also be applied to surfaces of household and public items to kill protozoa, eukaryotic parasites, algal pathogens, bacteria, fungi, prions, viruses, or other microorganisms, preventing the transfer thereof between users.

A method for removing PPCPs in a drinking water treatment process, includes the following operations: introducing, by using a manner of bottom microporous aeration, a mixture gas of O.sub.2 and O.sub.3 in which a volume percentage of O.sub.3 is 5% to 10% to an ozone contact reaction column (1) in which a cathode (3) and an anode (2) are disposed at the bottom, and a direct current is applied to the cathode and the anode; while the mixture gas is being introduced, adding, to the ozone contact reaction column (1), PPCPs containing water to be treated, with a hydraulic retention time of 10 s to 40 min, and discharging the water in real time. Further disclosed is the use of the method for removing PPCPs in a drinking water treatment process in preparation of drinking water.

The present invention aims at improving the purification of sewage in water treatment systems, by the use of enzymes. A filter comprising enzymes and a method for producing said filter are provided, as well as the use of said filter, a module system (10) for comprising said filter, and use of said module system.

The present invention provides a model for high-throughput screening of endocrine disruptors and a method for screening the same. In the present invention, primary structural alerts, secondary structural alerts and tertiary structural alerts of compounds are extracted according to a nuclear receptor, and then the primary structural alerts, the secondary structural alerts and the tertiary structural alerts form a nuclear receptor high-throughput screening model; hierarchical structural alert matching is carried out on target compounds through the nuclear receptor high-throughput screening model, and ligand-receptor binding mode analysis and semi-quantitative prediction of binding activity and disrupting activity are performed. According to the present invention, the defect in prior art that potential nuclear receptor-mediated endocrine disruptors cannot be effectively screened in high throughput is overcome, high-throughput screening of potential nuclear receptor-mediated endocrine disruptors can be performed, and receptor competitive activity and A-Anta activity of the nuclear receptor-mediated endocrine disruptors can be determined.

The invention pertains to a method (200, 300, 400) of at least partly removing at least one micropollutant from wastewater (104) comprising carbogenous compounds and at least one micropollutant. The method comprising the steps of: (a) dividing the wastewater (104) into a main stream (105) and a side stream (106); (b) treating main stream (105) with bacteria to reduce the content of carbogenous compounds to provide depleted wastewater (107) comprising at least one micropollutant; (c) treating the depleted wastewater (107) with a second portion of microorganisms (162), having the ability of degrading the at least one micropollutant, to, at least partly, remove the at least one micropollutant thereby providing treated water (170), wherein the second portion of microorganisms (162) have been enriched by feeding the side stream (106) to it before using the second portion of microorganisms (162) in treating the depleted wastewater (107); and (d) feeding a first portion of microorganisms (161), having the ability of degrading the at least one micropollutant, with the side stream (106), to enrich them for subsequent use in treating the depleted wastewater (107) to at least partly remove the at least one micropollutant.