Compositions for treating a waste source, and related methods are described herein. The composition includes a biochar impregnated with iron. The composition is produced by impregnating a biomass with a pretreatment solution comprising an iron containing compound to form a pretreated biomass, dehydrating the pretreated biomass, and pyrolyzing the pretreated biomass under conditions sufficient to form a biochar. A related method includes contacting a waste source including a pollutant with the composition and hydrogen peroxide to form a reaction mixture, oxidizing at least a portion of the pollutant under conditions sufficient to form an oxidized pollutant or intermediate compound, and separating the oxidized pollutant or intermediate compound from the reaction mixture.

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.

A method and system treating aqueous effluent from an aqueous stream from at least one of a manufacturing facility, compounding facility or municipal water treatment facility. Reductive and/or oxidative chemical species in an aqueous fluid stream decompose natural hormonal or synthetic hormonal contaminants. The method includes: providing a filter material comprising at least one porous carbon support layer and a silicate wool or glass wool layer in direct contact with the at least one porous carbon support layer having distributed halogens or halides within; passing an electric current through the filter material while directing a contaminated aqueous mass comprising natural hormonal or synthetic hormonal contaminants into contact with the filter material; and adsorbing the hormonal contaminants from the fluid mass onto the filter material in the presence of the electric current, and decomposing the hormonal contaminants.

A nucleophilic substitution reaction to crosslink cyclodextrin (CD) polymer with rigid aromatic groups, providing a high surface area, mesoporous CD-containing polymers (P-CDPs). The P-CDPs can be used for removing organic contaminants from water. By encapsulating pollutants to form well-defined host-guest complexes with complementary selectivities to activated carbon (AC) sorbents. The P-CDPs can rapidly sequester pharmaceuticals, pesticides, and other organic micropollutants, achieving equilibrium binding capacity in seconds with adsorption rate constants 15-200 times greater than ACs and nonporous CD sorbents. The CD polymer can be regenerated several times, through a room temperature washing procedure, with no loss in performance.

A water processing device is provided for removing micro-pollutants, in particular medicaments, from water, the device comprising at least one filter unit which is provided for at least one filtering of water in at least one operating state and which comprises at least one tubular filter element with at least two end portions, and comprising at least one adsorption unit which at least partially adsorbs the micro-pollutants in at least one operating state, wherein the at least two end portions enclose an inner angle of from 0? to 90? when in the assembled state.

Disclosed are methods, apparatuses and systems for the remediation of contaminated soils, groundwater, water, and/or waste using a combination of reagents. The disclosed methods may be used to treat various recalcitrant halogenated substances, such as perfluoroalkyls and polyfluoroalkyls. Particular combinations of reagents that may be used in the disclosed methods include but are not limited to: (1) persulfate, oxygen and ozone; (2) persulfate, salt, oxygen and ozone; (3) persulfate, phosphate, and/or oxygen; (4) persulfate, phosphate, oxygen and ozone; (5) persulfate, phosphate, salt and oxygen (6) persulfate, phosphate, salt, oxygen and ozone; (7) oxygen and salt; and (8) air and salt. The disclosed methods may enhance destruction of organic contaminants in the liquid phase and may also control the rate of aerosol or foam formation relative to the rate of chemical oxidation and/or reduction/transfer.

The present invention relates to a method for removing pollution from water containing organic micropollutants by adsorption on granular activated carbon in a treatment reactor (1) having rising flow and an expanded bed, so as to reduce a previously set percentage of micropollutants, making it possible to specifically determine the weight or the volume of granular activated carbon which is optimal (necessary and sufficient) in the reactor in order to obtain said previously set reduction percentage of organic micropollutants.

The present invention relates to a reactor for the treatment of a liquid stream, the reactor comprising: a liquid stream inlet, a reaction zone for holding the liquid stream, at least one rotating contactor in the reaction zone arranged to rotate through the liquid stream, and a liquid outlet, wherein the at least one rotating contactor includes a fabric mesh.

A nucleophilic substitution reaction to crosslink cyclodextrin (CD) polymer with rigid aromatic groups, providing a high surface area, mesoporous CD-containing polymers (P-CDPs). The P-CDPs can be used for removing organic contaminants from water. By encapsulating pollutants to form well-defined host-guest complexes with complementary selectivities to activated carbon (AC) sorbents. The P-CDPs can rapidly sequester pharmaceuticals, pesticides, and other organic micropollutants, achieving equilibrium binding capacity in seconds with adsorption rate constants 15-200 times greater than ACs and nonporous CD sorbents. The CD polymer can be regenerated several times, through a room temperature washing procedure, with no loss in performance.

The present disclosure discloses a method and device for removing Organic Micropollutants (OMPs) in water, and belongs to the technical field of wastewater treatment. The method includes the following steps: S1: aerating residual sludge under a starvation condition to enrich starved-state microorganisms; and S2: treating wastewater containing OMPs under an aeration condition with sludge containing the starved-state microorganisms obtained in step S1, and periodically updating the sludge containing the starved-state microorganisms. According to the present disclosure, aerobic starvation treatment is performed on the sludge to gradually reduce the abundance of microorganisms that may use degradable organic matters only and enrich microorganisms that may use complex organic matters in the sludge, and the enriched sludge may degrade various OMPs and be used to remove OMPs in wastewater. The process is easy to operate and low in cost and has relatively high practical application value.