The present invention belongs to the field of sewage treatment, and relates to a method for preparing a modified natural wood material and an application thereof in sewage treatment. The method for preparing the modified natural wood material includes the following steps: S1. placing wood into a lignin removal solution, after a heating reaction, washing, impregnating, and lyophilizing the wood to obtain removed lignin wood; S2. blending TiO.sub.2 with NaBH.sub.4, performing low-heat reduction treatment, and then washing and drying to obtain reduced black titanium; S3. dispersing the reduced black titanium ultrasonically in a solvent, then coating dropwise on the removed lignin wood, and drying to obtain a modified natural wood material. The modified natural wood material prepared by the present invention has high disinfection and sterilization performance, and has the ability to remove bio-risk components.

A water purification system provides clean water for the consumption by livestock by using a continuously recirculating water loop. A circulating pump moves the water and a particle filter system is fluidically connected in series. An ozone purification system is fluidically connected in parallel to a portion of the continuously recirculating feedback monitored and control water loop. The ozone purification system is disposed downstream of the particle filter system in relation to the flow direction. A feeding station is connected in series with the continuously recirculating water loop disposed downstream of the ozone purification system in relation to the flow direction. An alkaline water apparatus is disposed upstream of the ozone purification unit, connected either before or in parallel to the ozone purification system. A decrystallization process apparatus is connected to continuously solubilize gases of CO2, N2, and inert gases with the flowing water.

A visible light-reactive photocatalyst includes: a metal-organic framework (MOF) including pores; and an active material doped on the surface of the metal-organic framework, wherein the active material includes molybdenum disulfide (MoS.sub.2) or titanium oxide (TiO.sub.2).

A composite nanomaterial of ZnO impregnated by, e.g., a green copper phthalocyanine compound (CuPc) can be an efficient solar light photocatalyst for water remediation. The composite may include hollow shell microspheres and hollow nanospheres of CuPc-ZnO. CuPc may function as a templating and/or structure modifying agent, e.g., for forming hollow microspheres and/or nanospheres of ZnO particles. The composite can photocatalyze the degradation of organic pollutants such as crystal violet (CV) and 2,4-dichlorophenoxyacetic acid as well as microbes in water under solar light irradiation. The ZnO—CuPc composite can be stable and recyclable under solar irradiation.

A mobile system for treatment of a fluid containing organic material using sunlight may provide a trailer and a fluid treatment system mounted on the trailer. The fluid treatment system may include a solar tracking subsystem coupled to the trailer, a lens support mounted on the trailer and controlled by the solar tracking subsystem, a refracting lens coupled to the lens support, and a receiver mounted on the trailer. The receiver may be positioned with respect to the refracting lens to receive substantial concentrated light energy from the sunlight passing through the refracting lens. The fluid may be routed through the receiver for treatment of the organic material with concentrated sunlight.

Disclosed herein is a method of treating an aqueous solution containing impurities including a perfluoroalkyl substance and/or a polyfluoroalkyl substance, comprising introducing the aqueous solution into a batch or semi-batch photocatalytic reactor with a microparticulate catalyst configured to reduce chain length of the perfluoroalkyl substance and/or polyfluoroalkyl substance, forming a treated aqueous stream, the reactor including a catalyst flow controller configured to automatically increase the catalyst concentration in the reactor while agitating the catalyst-containing solution during reaction, and removing catalyst particles from the treated aqueous stream to form a purified aqueous stream. In some cases, the feed to the reactor is atomized. Corresponding systems also are disclosed

A water purification system provides clean water for the consumption by livestock by using a continuously recirculating water loop. A circulating pump moves the water within the water loop in a flow direction. A particle filter system is fluidically connected in series and removes dissolved solids or particulates within the water. An ozone purification system and/or with the addition of other antimicrobial or purification agents is fluidically connected in parallel to a portion of the continuously recirculating feedback monitored and control water loop. The ozone purification system is disposed downstream of the particle filter system in relation to the flow direction. A feeding station is connected in series with the continuously recirculating water loop disposed downstream of the ozone purification system in relation to the flow direction. An alkaline water apparatus is disposed upstream of the ozone purification unit, connected either before or in parallel to the ozone purification system.

A method and system for treating contaminated water are described. The method comprises receiving, in a first chamber, contaminated water with injection of a modifier; in a first chamber, treating the contaminated water with at least one of air or oxygen and simultaneously treating the contaminated water with ultraviolet radiation; in a second chamber, receiving fluid from the first chamber and treating the received fluid with at least one of oxygen or ozone; in a third chamber, receiving fluid from the second chamber and treating the received fluid with ultraviolet radiation; and discharging water from the third chamber using a discharge pump.

A method for differentially lysing a liquid sample or target material using an augmented oxidizing agent (AOA), which includes a quantity of electronically modified oxygen derivatives (EMODs). The method reduces or eliminates total dissolved solids (TDS), total suspended solids (TSS), Biologic Oxygen Demand (BOD), microbial concentration, biofilms and other content in the liquid target material known or suspected to contain animal fluids, blood and blood cells and suspected or known to contain eukaryotic cells, microbial cells, bacteria, viruses, spores, fungi, prions, organic matter, minerals, proteins or associated structures. The BOD, TDS and TSS can be lowered or eliminated as desired. This action is directly proportional to the quantity of EMODs in the AOS applied to the liquid target material.

An irradiation apparatus configured to be coupled to an irradiation chamber containing a material to be irradiated, comprising: a support structure; one or more radiation sources coupled to the support structure; and a heat exchange mechanism thermally coupled to the one or more radiation sources. The heat exchange mechanism comprises one or more of a thermoelectric cooling device, a vapor chamber, a heatsink, a heat dissipation structure, a fan, and a cooling coating. The one or more radiation sources comprise one or more UV radiation sources, one or more UV-C radiation. sources, one or more visible radiation sources, or a combination thereof. Optionally, the one or more radiation sources comprise a plurality of radiation sources arranged. in an array, Optionally, the one or more radiation sources deliver a combination of wavelengths to the material to be irradiated.