摘要:
A riser section having a generally tapered, e.g., frustoconical wall, the riser section having a first connector assembly at one end of the riser section and a second connector assembly at the other end of the riser section.
摘要:
A system for disinfecting contaminated water having, in one embodiment, a vessel for contaminated water having an inlet and an outlet. An elongate housing is disposed generally vertically in the vessel, the housing having a housing inlet and a housing outlet, the housing outlet being in open communication with the interior of the vessel. An elongate UV light assembly is disposed in the housing and divides at least a portion of the housing into first and second flow pathways, the second flow pathway being in open communication with the housing outlet. There is a flow inducer aiding flow of at least some of the contaminated water from the vessel, through the housing and out the housing outlet.
摘要:
An apparatus and method for denitrification of treated wastewater from an aerobic wastewater treatment system in which oxygen levels in the aeration chamber of an aerobic digestion vessel are cycled between an anoxic environment, i.e., when the treated wastewater in the aeration vessel contains from just above 0 to just less than 1 ppm dissolved oxygen to an aerobic environment wherein the treated wastewater in the aeration vessel has a dissolved oxygen content of about 1 ppm or higher.
摘要:
An aerobic wastewater treatment plant having a peripheral wall, at least three compartments being formed within the peripheral wall in conjunction with bottom wall, the peripheral wall having first and second end walls which are radiused and having at least portions thereof which have the same radius and the first and second side wall, the side wall and end walls being shaped and adjoined to each other so as to form a smooth contour on the outer surface of the peripheral wall, the peripheral wall preferably having an oval-like configuration when viewed in top plan view.
摘要:
A wastewater treatment plant comprises a first containment vessel, a second containment vessel forming an aerobic treatment chamber, the second containment vessel having an inlet and an outlet, there being a compartment formed in the first containment vessel that effectively divides the first containment vessel into a pretreatment chamber and a holding chamber. An outlet from the pretreatment chamber is in open communication with an inlet to the second containment vessel, while an outlet for the aerobic treatment chamber is in open communication with the inlet to the holding chamber.
摘要:
A wastewater reuse system has a wastewater treatment system connected to a dwelling for receiving wastewater therefrom. The wastewater treatment system has a pump tank with an outlet that can be connected to a central wastewater collection system and/or a re-use recipient of treated wastewater such as an irrigation system.
摘要:
A mobile wastewater treatment system wherein a mobile carrier has mounted thereon a wastewater treatment plant and a pump tank. There is a pump disposed in the pump tank, the output in the pump being selectively directed to a human use facility. Discharge from the human use facility is transferred by gravity to a lift station, accumulated wastewater at the lift station being transferred to the input of the wastewater treatment plant.
摘要:
An apparatus for disinfecting contaminated water having a body forming a flow channel with a first end and a second end flowing generally from said first end of the flow channel to an outlet for removing contaminated water from the flow channel. There is a mount for suspending a UV bulb assembly above the channel at a distance above but sufficiently close to the level of contaminated water in the channel to effect UV radiation of contaminated water in the channel.
摘要:
A treatment system comprising a holding tank for a source liquid, a pump having a pump inlet for the intake of source liquid and a pump discharge, at least one conduit connected to the pump discharge and a liquid dispenser connected to the one conduit, the dispenser comprising a container for treating liquid, a feed conduit, a dosing chamber for receiving treating liquid via the feed conduit, a vent for breaking an airlock in the dosing chamber, a first valve connected to the dosing chamber for controlling flow of treating liquid through the first valve, a second valve connected to the first valve, the second valve being operative in response to pressure resulting from the pumping of source liquid through the at least one conduit to close the second valve and open the first valve, stopping of the pump resulting in opening of the second valve and introduction of the treating liquid from the dosing chamber and into the source liquid.
摘要:
A system for introducing a liquid disinfectant into treated wastewater comprising a source of liquid disinfectant, a sensor to detect flow or level of treated wastewater from a wastewater treatment system, a selectively operable valve to allow the liquid disinfectant to flow via gravity into the treated wastewater and a controller operatively connected to the sensor to open the valve in response to sensed, increased flow or level of the treated wastewater in a receiver for the wastewater above a sensed, predetermined point.