A method and system of wastewater evaporation uses a turbine-based wastewater evaporation system to convert wastewater to steam. The wastewater evaporation system includes a wastewater heating track disposed in the interior of the exhaust collector of the turbine in the flow path of turbine exhaust. The wastewater fluidly communicated therethrough is heated by the turbine exhaust and fluidly communicated to a plurality of atomization nozzles. The plurality of atomization nozzles direct atomized wastewater into the interior of the exhaust port of the turbine that is converted to steam in the presence of turbine exhaust within the exhaust port. The system may be disposed on a mobile trailer or skid to facilitate disposing the system on a job site and may be remotely controllable by a remote operator.

Apparatus and methods for distilling fresh water from seawater or from impure water by evaporation and condensation, as a system which may be characterized as a direct-heating continuous-flow solar thermal still, with heat supplying an evaporator primarily by solar energy from incident or reflecting sunlight, cooling supplying a condenser primarily by cold seawater piping from deep below the sea surface or from another cold-water source, with evaporator operating in a range of pressures from atmospheric at sea level to a pressure reduced below atmospheric pressure at sea level. The system maximizes the thermal gradient from the hot side of the evaporator to the cold side of the condenser, minimizing the energy flows and mass flows required for a given unit of fresh water output.

A salt-level sensor for a water softener salt reservoir (aka brine tank) may comprise a laser distance detector or ultrasonic distance detector, a processor, a wi-fi module, a power module, a memory module, a housing, and a mounting assembly. The salt-level sensor may be configured to be mounted to the underside of the lid of a salt reservoir, with the distance detector directed away from the lid location. The mounting assembly may comprise one or more threaded elements and complementary nut(s), and may additionally comprise an orientation adjustment mechanism.

A method for measuring the salt level in a salt reservoir may comprise installing the salt-level sensor on the underside of the lid; emitting a signal toward to salt; receiving a return signal; and, based on the time between emitting and receiving the signal, determining a distance to the salt.

Provided is a feed spacer for reducing differential pressure of a reverse osmosis element, the feed spacer forming the reverse osmosis element, the feed spacer comprising a plurality of strands disposed in a mesh shape having predetermined intersection points, and wherein a vertical cross section of each of the strands has a rhombic shape such that a pressure loss of in the feed spacer is minimized by an effective flow of raw water at an interface of a reverse osmosis membrane, and a nozzle for forming the feed spacer.

A fluid management system including an inlet configured to receive pre-processed fluid is provided. The system includes a filtering apparatus configured to remove contaminants from the pre-processed fluid. The filtering apparatus includes a plate having a first opening. A first manifold pipe is disposed on the plate and includes one or more perforations and a second opening at least partially aligned with the first opening. A second manifold pipe is disposed on the plate and includes one or more perforations. Filter media is disposed between the first manifold pipe and the second manifold pipe and is configured to separate the contaminants from the pre-processed fluid. The system also includes an outlet coupled to the second manifold pipe to receive processed fluid from the filtering apparatus.

The present invention supplies partitioned water treatment systems that possess a plurality of chambers and vertical filtration units, and are operative to control and filter surface runoff water. Such systems are typically placed inline with surface runoff water conveyance system infrastructure, such as pipes, channels, and water storage units.

A water container for purifying water. The water container includes an opening configured to receive water, a container body arranged to enclose the water and a water purifying unit configured to purify the water. The water purifying unit includes an at least partially transparent plate, which includes a coating of metal-oxide nanoparticles on a first side facing the container body, wherein the first side is configured to be in contact with the water, and an ultraviolet light module configured to radiate towards a second side of the at least partially transparent plate such that light from the ultraviolet light module at least partially passes through the at least partially transparent plate. Also, a method for purifying water within a water container.

A large scale water desalination process for producing at least 100,000 m.sup.3/day of product water. Feed water is passed through a high pressure pump driven by at least one steam turbine capable of producing at least 1 MW of energy, the pressurized feed water passing through at least one reverse osmosis membrane to provide a residual brine stream and a product water. A start-up step slowly increases pressure in the membrane at a maximum rate of 12 psi (8.3 Newtons/cm.sup.2; 0.08 MPa) per second by rotation of the turbine driven high pressure pump at a maximum rate of 30 RPM to slowly increase pressure on the membrane to a predetermined operational pressure and controlling the operational pressure following the start-up step by rotation of the high pressure pump between 500 RPM and 5000 RPM dependent on the pressure applied by the steam turbine.

A water purifier for home use, irrigation systems used for crop cultivation or the pharmaceutical industry includes a water inlet for a water to be purified and a water outlet for a purified water. A water treatment chamber is fluidly connected to the water inlet and the water outlet. The water treatment chamber is confined by a chamber wall. The water purifier includes a high-voltage plasma unit for generating a cold plasma within the water treatment chamber. The plasma unit has a first electrode and a second electrode. The first electrode is arranged inside the water treatment chamber such that, during use of the water purifier, it is contacted by the water. The second electrode is disposed spaced apart from the first electrode and electrically insulated therefrom by a dielectric. The water purifier further relates to a water purification system.

The instant application pertains to a pressure relief door for a waste water treatment system. The pressure relief door comprises a pressure relief door frame configured to be attached to a baffle wall or a tank floor or a tank cover. A pressure relief door cover is attached to the pressure relief door frame with a hinge and axle. At least one torsion spring is attached to the pressure relief door cover so that the pressure relief door is allowed to open only when the pressure on the pressure relief door cover exceeds a predetermined pressure.