Abstract: A water purification system and method. A closed water recirculation loop supplied at one point by a water inlet with water to be purified, and having at least one outlet point of use of the purified water. Also included is a pump and a water purifier on the loop respectively downstream of the inlet point and upstream of the at least one outlet point, in the water flow direction. The system includes two independent valves, including a first valve on the loop upstream of the pump and a second valve upstream of the at least one point of use outlet point. The first and second valves are selectively opened and closed to recirculate all the water treated by the purifier.

Abstract: A wastewater treatment system including carbon dioxide gas injection means for injecting a carbon dioxide gas into wastewater which takes place during silicon processing to obtain raw wastewater to be treated; a wastewater tank; a filter membrane through which the raw wastewater is filtered; a liquid forwarding pump which forwards the raw wastewater to the filter membrane; and circulation/forwarding control means which can forward concentrated water and/or filtered water to the wastewater tank and which can regulate the pH of the raw wastewater to 4.0 to 6.5 to forward this wastewater to the filter membrane, when the amount of the raw wastewater present in the wastewater tank is below a reference amount.

Abstract: Systems and methods for cleaning a fuel storage tank are disclosed. One system includes a plurality of filter elements mounted within a portable housing, and a hose in fluidic connection to at least some of the filter elements, the hose extendable from the portable housing and into an interior of a fuel storage tank, the hose having a nozzle including an inlet. The system also includes a pump in fluidic connection with one or more of the filter elements and configured to draw contents of the fuel storage tank into the hose and forward the contents through the one or more filter elements. The system further includes a video camera configured to capture video images of the interior of the fuel tank in an area proximate to the nozzle of the hose during cleaning.

Abstract: A circulation system for bodies of water. In one set of embodiments for larger bodies of water, modified horizontal plate designs are provided at the entrance of the draft hose. The plate designs have sections that pivot downwardly as the flotation platform and depending draft hose are rapidly raised in high wave conditions to let the water escape downwardly out of the hose. Adaptations to the floats for the elongated arms of the platform are also made to essentially eliminate the creation of any damaging torques on them from high waves. Another set of embodiments are particularly adapted for smaller systems in municipal water tanks for thorough mixing of the water and treatment to kill undesirable ammonia oxidizing bacteria and prevent or at least inhibit their return.

Abstract: Exemplary systems and methods relating to washboxes are described.

Abstract: A system for collecting, treating and disposing of waste fluid includes a station that features transfer, flushing and mixing pumps as well as a bowl that holds the waste fluid. The waste fluid is collected in a container mounted on a cart. The cart container connects to the station so that the waste fluid is transferred from the cart to the station bowl by the transfer pump. The flushing pump has an inlet that communicates with a source of water and a disinfectant dispenser. The flushing pump is used to flush both the cart container and the station bowl, the latter of which communicates with a drain system. The flushing pump also delivers disinfectant to the waste fluid in the station bowl. The inlet and outlet of the mixing pump communicate with the bowl so that it mixes the bowl contents. Buffer is provided to the circulating waste fluid until the pH level drops to a predetermined level.

Abstract: Device for treating water with a supply (3); a treatment tank (4); a drain (9); a regulator (13); and a bypass (22) which connects the supply (3) to the drain (9), characterised in that in the main canalisation (2), on either side of the regulator (13), is provided a shut-off valve (12, 14); in that the device (1) comprises a first shunt canalisation (18) which bridges the first shut-off valve (12) and the regulator (13) and comprises a second shunt canalisation (20) which bridges the regulator (13) and the second shut-off valve (14), whereby both shunt canalisations (18, 20) comprise a shut-off valve (19, 21), and whereby the shut-off valves (12, 14) are open on either side of the regulator (13) during the treatment phase, whereas the other shut-off valves (19, 21) are open during the rinse or regeneration phase.

Abstract: A water treatment system including a UV bulb, a moisture detector, and a control circuit responsive to the moisture detector to terminate power to the bulb when moisture is detected. The moisture detector includes a nonconductive substrate and a pair of conductors on the substrate. When moisture is not present, the detector is nonconductive. However, when moisture accumulates on the detector, the moisture provides a conductive path between the conductors so that the detector becomes conductive. When moisture is detected, the control circuit terminates power to the bulb and/or provides an appropriate indication to the system user.

Abstract: An automated system for fuel polishing stored fuel in multiple storage tanks, and methods for making and using such systems, such methods including the use of an apparatus comprising a pump having a flow velocity sufficient to suspend settled impurities in a fuel storage tank, at least a first and second fuel storage tank each having an inlet and an outlet; said at least one filter; a fluid pathway connecting said pump, said fuel storage tanks, and at least one filter; a first three-way valve positioned at a junction between the inlet of at least said first and second fuel storage tanks; a second three-way valve positioned at a junction between the outlet of at least said first and second fuel storage tanks; and a system controller component operably connected to said first and second three-way valve to automatically control the position of each valve without manual intervention.

Abstract: According to the invention, the filter is fixed to the engine block by screwing it to an attached connecting sleeve. The connecting sleeve contains a bypass valve, in the form of a tubular piston sliding in a through-passage and pushed against an intermediate shoulder by a spring. By sliding, the piston opens or closes a radial passage establishing direct communication between the inlet passage and the through-passage of the device. If the filter element of the filter is clogged, the pressure rise in the inlet passage causes the piston to move and the radial passage to open to reduce the pressure rise and ensure a satisfactory flow of oil. This reduces pressure rises upstream of the filter and ensures sufficient lubrication of the engine even in the case of clogging of the filter.

Abstract: It is an object of the present invention to provide an effective technique for achieving a higher level of water quality control in a water treatment apparatus. Representative water treatment apparatus according to the present invention may include a purifying section, a sterilizing section, a water storing section and a water quality detection sensor. The water quality detection sensor is immersed in the water storing section. The water quality detection sensor not only serves as a means for detecting the quality of water in the water storing section, but also as a means for detecting deposition of biomembrane on the detecting section of the water quality detection sensor due to deterioration of the sterilizing performance of the water storing section. As a result, an efficient water quality control system can be realized.

Abstract: A beverage bottling plant for filling bottles with a liquid beverage filling material, a container filling plant container filling machine, and a filter apparatus for filtering a liquid beverage. The filter apparatus has a plurality of filter chambers and associated valves for controlling flow of filtered liquid out of the filter chambers to optimize filtration.

Abstract: A method and apparatus for cleaning accumulated silt from the floor of a percolation basin are provided. An underwater terrain vehicle (UTV) moves along the basin floor and carries a series of blades that cut and lift the accumulated silt. An eductor driven vacuum head also carried by the UTV vacuums fragmented silt and transports the entrained fragmented silt through a vacuum hose into a location where the silt particles are separated from the water in which they are entrained. The UTV carries a first sonar for continuously scanning the basin floor and which is utilized to guide the UTV. A second sonar is placed in the basin in a known location and continuously scans and continuously monitors the location of the UTV on the basin floor. An operator remotely guides the UTV from an onshore location.

Abstract: A method of separating a hydrocarbon multiphase fluid mixture. The method comprises an application step in which the hydrocarbon fluid mixture (E) is applied to a separator that separates by gravity the hydrocarbon fluid mixture (E) into a liquid layer and a gas layer. The method further comprises an extraction step, a liquid-level measurement step, a level-based adjustment step, a parameter measurement step, and a parameter-based adjustment step.

Abstract: A water-dispensing appliance is provided, in particular for dispensing drinking water, comprising a water inlet which can be connected to a water-supply device, also comprising a dispensing device with a water outlet, via which water can be dispensed from the appliance, the dispensing device being connected to the water inlet via a main line which has a downstream portion and an upstream portion, and also comprising a water heater. The water-dispensing appliance has a return line, of which the start is line-connected to the downstream portion of the main line and the end is connected to the upstream portion of the main line, and the appliance also has a delivery unit in order for water heated up by means of the water heater to be delivered through the main line from the upstream portion to the downstream portion.

Abstract: The control systems and technique can regulate or control operations of a water treatment system in a primary control mode and, when appropriate, in a secondary or an alternate control mode. The primary control can represent a normal control mode during which the water treatment system is intended to operate. The alternate control mode can represent a second control or mode of operation. The systems can be operated to control or facilitate regulation, monitoring, and performance of one or more operating parameters of one or more water systems between, or to and from, a first mode, a second or alternate mode, and, in some cases, a third or even a fourth control mode. The change in control mode can be triggered by identifying one or more predetermined, pre-selected, and/or programmed conditions.

Abstract: A system for separating hydrocarbons from water, the system including an inlet for receiving a fluid, the fluid including a water phase and a hydrocarbon phase, and a separation tank having a first partition and a second partition, wherein the first partition is configured to receive the fluid from the inlet. Furthermore, the system includes a first outlet configured to receive the water phase from the first partition, a second outlet configured to receive the hydrocarbon phase from the second partition, and a support structure configured to receive the water phase from the first outlet and the hydrocarbon phase from the second outlet. Also, a method of separating a fluid into a water phase and a hydrocarbon phase, the method including injecting the fluid containing the water phase and the hydrocarbon phase into a separation tank.

Abstract: A flow through aqueous liquid sterilization apparatus which employs substantially fixed temperatures and pressures and variable flow rates through the apparatus for controllably processing aqueous liquids to achieve predetermined values of SALs.

Abstract: An apparatus and method are provided that enable the control of a screening operation based on a calculated screen blockage percentage and the velocity throughput of the screen. The apparatus includes an upstream level detector, a downstream level detector and a flow determining device which determines the volumetric flow through the screen. The apparatus may further include a blockage determination unit which determines the percent screen blockage based on the flow level upstream of the screen, the flow level downstream of the screen and the volumetric flow.

Abstract: The invention is a handheld device for puncturing oil filters and thus allowing more retained oil to drain from used filters. An oil filter has several internal chambers filled with oil which do not drain by gravity from the filter unless the sidewall of the filter is punches. The device of the invention punches the sidewall of the filters, and provides a rack for draining the oil filters.