A passivating system for stainless steel process equipment includes: an oxygenation system comprising a raw water inlet, an oxygen inlet, a porous membrane through which oxygen flows into the raw water to create oxygenated water and, an oxygenated water outlet; a fluid conduit providing the oxygenated water to a clean-in-place (CIP) system connected to the stainless steel process equipment; and, a control interface through which a user may circulate the oxygenated water through the piping for a selected time to improve the surface passivation after a cleaning cycle. The oxygenation system may be separate from the CIP system or they may be co-located on a skid or other common base. The oxygenated water preferably has a dissolved oxygen content of at least 20 mg/L.

A system and method for in situ dewatering and stabilizing waste material deposits previously created from sluicing into a waste impoundment. The method includes access for installation of wells and grading for surface drainage and storm water control. If free water is present, primary dewatering siphons or decants the free water in the pond. The system includes vertical dewatering well installation that requires drilling, well completion materials for filtering leachate, and well pump installation for removing leachate from the well. Collection piping collects leachate from the wells and transfers the leachate to a discharge solution. The dewatering operation collects and removes leachate from the pond ash deposit and impoundment, reuses or treats the leachate at a discharge solution, remediates contaminants and/or hydraulic head in the impoundment, and consolidates and stabilizes the dewatered solids. Impoundment closure includes horizontal drains, final grading, final cover or overfill landfill development, and post closure.

The invention relates to wastewater treatment systems with decentralized disposal of treated wastewater and methods of using the same. The invention further relates to methods of converting existing septic systems to a wastewater treatment plant system.

A water inlet protection system is provided. The system may an adjustable frame defining an interior cavity, the adjustable frame including a plurality of rigid base members, a plurality of slidable corner members, a plurality of nut-and-bolt fasteners, and one or more tabs extending from one or more of the corner members. Each of the slidable corner members includes one or more slots, and each of the nut-and-bolt fasteners includes a bolt that extends through one of the one or more slots and one of the rigid base members. When the respective bolt is loosened, the respective slidable corner member is slidable along the respective slot atop the respective rigid base member, thereby altering a boundary of the interior cavity. When the respective bolt is tightened, the respective slidable corner member is fixed in place atop the respective rigid base member, thereby fixing the boundary of the interior cavity.

The invention relates to wastewater treatment systems with decentralized disposal of treated wastewater and methods of using the same. The invention further relates to methods of converting existing septic systems to a wastewater treatment plant system.

A water inlet protection system and apparatus for removing sediment and/or chemical from water or other fluids is provided. The system may include a filtration material that is configured to be water permeable and to collect sediment within the water. The system may be configured to be removably secured to various types of storm drains or water inlets. The system may include a frame configured to be removably attached to a storm grate. The frame may also include a plurality of tabs extending from the frame and be slidably adjustable. The system may also include an s-clip member or magnets for removably securing the filtration material to a storm drain or water inlet. Furthermore, the water inlet protection system may include one or more over-flow protection openings. The over-flow protection openings may include a raised member or barrier to regulate the water level where over-flow occurs.

A water salinity control apparatus for a marine aquarium includes a filter section in which the water from a utility water supply is purified and deionized. A reservoir section includes a purified water reservoir for purified water, a salt-mixed water reservoir in which marine water at the setpoint salinity is stored, and a salt concentrate reservoir which contains fully salt-saturated water. A pump section includes pumps for pumping water from the salt-mixed water reservoir into the aquarium and for pumping water from the purified water reservoir to the aquarium. A control system adjusts the salinity of the water in the salt-mixed water reservoir and the salinity of the water in the marine aquarium. The control system receives input from salinity measuring probes that measure the salinity in the salt-mixed water reservoir and the salinity of the water of the marine aquarium.

A system and method of collecting and conditioning rainwater and other moisture, such as dew, from a windshield of a vehicle and utilizing the collected fluid to replenish the fluids in the windshield washer reservoir. A collection funnel is positioned on a vehicle in order to collect rainwater and other moisture. Rainwater and other fluids from the collection funnel are directed to a conditioning cartridge where the water is de-ionized and windshield washer fluid is added. The cartridges are designed to be single replaceable units. The mixed fluid from the mixing cartridge is directed to the pre-existing windshield washer reservoir.

A centrifugal pump assembly includes an electric motor (2) driving a centrifugal pump (1) and includes an electronics casing (8). In the electronics casing (8), the control electronics (10, 11) for the pump and motor are integrated. A device for detecting particles in a fluid fed via a bypass (6, 7) of a delivery conduit (3) is also in the electronics casing (8).

A system and method for in situ dewatering and stabilizing waste material deposits previously created from sluicing into a waste impoundment. The method includes access for installation of wells and grading for surface drainage and storm water control. If free water is present, primary dewatering siphons or decants the free water in the pond. The system includes vertical dewatering well installation that requires drilling, well completion materials for filtering leachate, and well pump installation for removing leachate from the well. Collection piping collects leachate from the wells and transfers the leachate to a discharge solution. The dewatering operation collects and removes leachate from the pond ash deposit and impoundment, reuses or treats the leachate at a discharge solution, remediates contaminants and/or hydraulic head in the impoundment, and consolidates and stabilizes the dewatered solids. Impoundment closure includes horizontal drains, final grading, final cover or overfill landfill development, and post closure.