A wetland system for treatment of wastewater comprises first and second vertical constructed wetlands connected in series, the first and second vertical constructed wetlands each including a bottom drainage layer, a main filter layer above the drainage layer, and a distribution layer above the main filter layer comprising a plant, wherein the bottom drainage layer of both the first and second vertical constructed wetlands comprises gravel, the distribution layer of both the first and second vertical constructed wetlands comprises agricultural sand, and the main filter layer of the first and second vertical constructed wetlands comprises a bio-plastic media.

A system and method for removing a target substance in a surface or subsurface water flow includes an enclosure formed by a geotextile wrapping material, and a filling composition contained in the enclosure. The filling composition includes an amount of active material dispersed in a media material, where the active material is capable of binding, absorbing or otherwise reacting to the target substance to thereby reducing the amount of the target substance from the resulting water flow exiting the system.

There is provided a chemical analyzer equipped with a hollow fiber degassing module that can maintain the original excellent degassing performance even after long periods of continuous use. More specifically, a hollow fiber degassing module includes a housing and a hollow fiber membrane disposed in an internal space of the housing. The housing includes a liquid supply unit for connecting an outside of the housing and an internal space of the hollow fiber membrane to each other, and for supplying constant temperature water, a liquid discharge unit for connecting the internal space of the hollow fiber membrane and the outside of the housing to each other, and for discharging constant temperature water, a gas discharge unit for connecting an internal space of the housing and the outside of the housing to each other, and for depressurizing the internal space, and a purge gas supply unit.

A portable water softener with an integrated pre-filter, designed specifically for use in recreational vehicles (RVs). The device combines water filtration and softening in a single, compact unit, providing an efficient solution for improving water quality in mobile environments. The pre-filter removes impurities such as sand, rust, sediments, bad taste, odour, and volatile organic compounds (VOCs) before the water enters the softening chamber (104). The softening chamber (104) contains resin beads that perform ion exchange, removing hardness-causing calcium and magnesium ions. The integrated design enhances the efficiency of the water softening process, reduces the need for multiple devices, and simplifies installation and maintenance. The device is protected by a durable neoprene sleeve, making it suitable for various environmental conditions encountered during travel. The invention offers an effective, user-friendly, and portable solution for ensuring high-quality water in RVs, addressing the limitations of existing water softening and filtration systems.

A portable water softener with an integrated pre-filter, designed specifically for use in recreational vehicles (RVs). The device combines water filtration and softening in a single, compact unit, providing an efficient solution for improving water quality in mobile environments. The pre-filter removes impurities such as sand, rust, sediments, bad taste, odour, and volatile organic compounds (VOCs) before the water enters the softening chamber (104). The softening chamber (104) contains resin beads that perform ion exchange, removing hardness-causing calcium and magnesium ions. The integrated design enhances the efficiency of the water softening process, reduces the need for multiple devices, and simplifies installation and maintenance. The device is protected by a durable neoprene sleeve, making it suitable for various environmental conditions encountered during travel. The invention offers an effective, user-friendly, and portable solution for ensuring high-quality water in RVs, addressing the limitations of existing water softening and filtration systems.