Disclosed herein is a wastewater treatment reactor that makes use of activated carbon as the adsorbent. The wastewater treatment reaction is suitable for use in an electrochemical advanced oxidation process and includes a cathode and anode, where the cathode is arranged to incorporate activate carbon and carbon brushes. Also disclosed herein are methods making use of the reactor for adsorption of contaminants and its regeneration.

An algae treatment device of the present invention is installed in a ship or a barge and selectively destroys only the air-sacs of algae by discharging high-voltage micro pulses into waters of interest in which green tide or red tide has occurred. Thus, the algae treatment device can efficiently solve green tide or red tide by treating algae using a minimal amount of chemicals, or none at all.

A wastewater treatment system comprises a fluid conveyance, one or more filtration vessels, one-way valves, and a backwash collection conduits. The filtration vessels each have a vessel inlet and a vessel outlet. Filtration media is positioned between the respective vessel inlet and the respective vessel outlet. Each respective vessel inlet communicates with the fluid conveyance. Each one-way valve is located at the inlet of the respective filtration vessel to regulate a flow of fluid from the fluid conveyance into the respective filtration vessel and to prevent the fluid from exiting the respective filtration vessels through the one-way valves. Each backwash collection conduit communicates with each filtration vessel by a drain conduit, the drain conduit having an outlet that is above a top of a fluid volume in the backwash collection conduit so as to provide an air gap.

Provided are anti-pathogenic sintered nanoparticle compounds made of zeolite, silver nitrate (AgNO.sub.3), silver dioxide nanoparticles (Ag.sub.2O np), and graphene. Provided are enhanced granulated activated charcoal (EGAC) compounds made of granulated activated charcoal, silver nitrate (AgNO.sub.3), silver dioxide nanoparticles (Ag.sub.2O np), and graphene. Uses of the same are provided, including in enhanced filtration systems and/or pressurized wastewater filtration plants.

A water purification filter element is provided. The water purification filter element may include a filter bottle, a filter material, an end cover, and a water self-stopping and passing structure.

A gasification system according to an aspect includes a scrubber device to transfer contaminant contained in a flammable gas to cleaning water and discharge the cleaning water containing the contaminant as scrubber wastewater, a heat exchange device to heat the scrubber wastewater to vaporize the contaminant contained in the scrubber wastewater; and a combustion furnace to incinerate the vaporized contaminant, wherein the heat exchange device heats the scrubber wastewater by using heat generated by the combustion furnace.

The present invention relates to novel sulfur-doped carbonaceous porous materials. The present invention also relates to processes for the preparation of these materials and to the use of these materials in applications such as gas adsorption, mercury and gold capture, gas storage and as catalysts or catalyst supports.

A water purifier includes a raw water flow path into which raw water is introduced, a clean water flow path connected to the raw water flow path and having a water discharge nozzle disposed at an end, a filter device disposed in the clean water flow path, and to which a filter is installable to filter the raw water, a drain flow path branched off from the clean water flow path between the filter and the water discharge nozzle and connected to a drain port to drain water in the clean water flow path to outside, a drain valve configured to open or close the drain flow path, and a controller configured to determine a remaining life of the filter on a point in time at which the filter has been replaced and control the drain valve to perform a cleaning operation based on the remaining life of the filter.

The present invention discloses a preparation method for the plant-based nano corrosion inhibition bactericide for oilfield, comprising the following steps: Step 1. Prepare the aloin liquid; Step 2. Stir the carbon nanotube, hydroxyethyl methacrylate and acrylic acid to react for 4 h at a constant temperature of 80° C. to get the carbon nanotube after fiber treatment, namely the modified carbon nanotube; Step 3. Mix the aloin liquid with imidazoline-ammonium-salt, add acetonitrile, and then add modified carbon nanotube, increase the temperature to 95° C. stir and react for 12 hours, and filter after naturally cooling down to room temperature and get the carbon nanotube loaded with bactericide; Step 4. Stir the carbon nanotube loaded with bactericide, diphenylmethane diisocyanate and polycaprolactone to react for 6 hours at a constant temperature of 95° C. and in the reaction process, continuously inject helium to get the target bactericide.

The present invention discloses the stormwater source filtration system in which the treatment location is at the first point of water collection, as close to the source of contamination as possible. This provides for a modular, flexible, linear treatment system that can adapt to the existing conditions and the existing roadway profiles. Like our road systems, this is linear and can change with the roadway. This system provides for increased storage capacity immediately adjacent to the roadway. Modular and flexible construction make this system of superior cost effectiveness versus the current filtration systems used today. The ease of maintenance and ability to quickly change the filtration media as needed will reduce long term maintenance costs versus current systems. The disclosed system may be installed in both new constructions and as an enhancement/retrofit of existing systems.