Abstract: The present invention belongs to the technical field of environmental engineering and provides a method for constructing a multistage food chain biofilm system enhanced by electrochemistry and an application in pharmaceutical wastewater. A flow-through electrochemical degradation module is constructed based on P/F-TiO2-n porous membrane electrodes, and a multistage flow-through composite electrochemical-biological submerged fixed film reactor is constructed jointly with the PA-N-rGO fixed fiber carrier and applied to deep purification of high-risk substances in pharmaceutical wastewater.

Abstract: The present invention belongs to the technical field of environmental engineering and provides a method for constructing a multistage food chain biofilm system enhanced by electrochemistry and an application in pharmaceutical wastewater. A flow-through electrochemical degradation module is constructed based on P/F—TiO2-n porous membrane electrodes, and a multistage flow-through composite electrochemical-biological submerged fixed film reactor is constructed jointly with the PA-N-rGO fixed fiber carrier and applied to deep purification of high-risk substances in pharmaceutical wastewater.

Abstract: The present disclosure provides methods, electrodes, and systems for electrochemical oxidation of polyfluoroalkyl and perfluroalkyl (PFAS) contaminants using Magnéli phase titanium suboxide ceramic electrodes/membranes. Magnéli phase titanium suboxide ceramic electrodes/membranes can be porous and can be included in reactive electrochemical membrane filtration systems for filtration, concentration, and oxidation of PFASs and other contaminants.

Abstract: The present disclosure provides methods, electrodes, and systems for electrochemical oxidation of polyfluoroalkyl and perfluroalkyl (PFAS) contaminants using Magnéli phase titanium suboxide ceramic electrodes/membranes. Magneli phase titanium suboxide ceramic electrodes/membranes can be porous and can be included in reactive electrochemical membrane filtration systems for filtration, concentration, and oxidation of PFASs and other contaminants.

Abstract: A disc type electrocatalytic water treatment device, characterized in that: comprising: a housing having a water inlet and a water outlet, a plurality of cathode plates and anode plates sequentially and alternately stacked inside the housing, a central shaft passes through central holes of the cathode plates and anode plates and compress the cathode plates to form a disc-shaped structure while the cathode plate and the anode plate are separated at the central holes. A wastewater to be treated is guided to enter from the water inlet, flow inwardly and outwardly to sequentially pass through the cathode plate and the anode plate such that a passage route is formed, and finally flows out from the water outlet.

Abstract: A disc type electrocatalytic water treatment device, characterized in that: comprising: a housing having a water inlet and a water outlet, a plurality of cathode plates and anode plates sequentially and alternately stacked inside the housing, a central shaft passes through central holes of the cathode plates and anode plates and compress the cathode plates to form a disc-shaped structure while the cathode plate and the anode plate are separated at the central holes. A wastewater to be treated is guided to enter from the water inlet, flow inwardly and outwardly to sequentially pass through the cathode plate and the anode plate such that a passage route is formed, and finally flows out from the water outlet.

Abstract: The present disclosure provides methods, electrodes, and systems for electrochemical oxidation of polyfluoroalkyl and perfluroalkyl (PFAS) contaminants using Magnéli phase titanium suboxide ceramic electrodes/membranes. Magneli phase titanium suboxide ceramic electrodes/membranes can be porous and can be included in reactive electrochemical membrane filtration systems for filtration, concentration, and oxidation of PFASs and other contaminants.

Abstract: Various embodiments provide methods for removing a PFC by concentration and separation. In an exemplary method, a PFC in an aqueous solution or in a mixed water-organic solvent solution can be adsorbed onto a surface of a floc generated by electroflocculation, to form sludge. The sludge containing the PFC can be centrifuged to separate the PFC from the sludge and to form a concentrated PFC solution. Eelectroflocculation provides a simple process that is easy to operate. Reaction conditions are mild. Energy consumption is low. Treatment effect is desirable, stable, and reliable. Industrial application can be easy to implement. Further, the centrifugal separation technology used for the harmless treatment of the generated PFC-containing sludge is novel and does not need to use chemicals. Further, dewatering of the sludge is achieved at the same time during the harmless treatment. The needed equipment is simple and can be automatically operated.

Abstract: Various embodiments provide methods for removing a PFC by concentration and separation. In an exemplary method, a PFC in an aqueous solution or in a mixed water-organic solvent solution can be adsorbed onto a surface of a floc generated by electroflocculation, to form sludge. The sludge containing the PFC can be centrifuged to separate the PFC from the sludge and to form a concentrated PFC solution. Eelectroflocculation provides a simple process that is easy to operate. Reaction conditions are mild. Energy consumption is low. Treatment effect is desirable, stable, and reliable. Industrial application can be easy to implement. Further, the centrifugal separation technology used for the harmless treatment of the generated PFC-containing sludge is novel and does not need to use chemicals. Further, dewatering of the sludge is achieved at the same time during the harmless treatment. The needed equipment is simple and can be automatically operated.