摘要:
An aerator assembly for use in the aeration vessel of a wastewater treatment system comprising a rigid tubular member having an upper end and a lower end, and a diffuser assembly, the diffuser assembly comprising a flexible connector and a diffuser head, the flexible connector connecting the diffuser head to the lower end of the rigid tubular member and providing a fluid flow path between the tubular member and the diffuser head, the upper end of the rigid tubular member being adapted to be connected to a source of an oxygen-containing gas such as air.
摘要:
An apparatus for treating wastewater with a liquid disinfectant comprising a vessel for wastewater, a pump in the vessel, a discharge conduit connected to the outlet of the pump for discharging water from the vessel, a first valve in the discharge conduit to control flow through the discharge conduit, a recirculation conduit connected to the pump discharge for recycling at least a portion of the wastewater discharged from the pump back into the vessel, a container for liquid disinfectant, a feedline connected to the container to feed disinfectant into the vessel, a second valve in the feedline to control the flow of disinfectant through the feedline and a control system connected to the pump and the first and second valves to selectively cause opening and closing of the first and second valves at desired intervals for predetermined periods of time and selectively activate the pump at desired times for predetermined periods of time.
摘要:
A system for introducing a liquid disinfectant into treated wastewater comprising a source of liquid disinfectant, a sensor to detect flow of treated wastewater from a wastewater treatment system, a pump to introduce the liquid disinfectant into the treated wastewater and a controller operatively connected to the sensor to activate the pump in response to increased flow of treated wastewater above a sensed, predetermined flow rate.
摘要:
A defined current and aeration system for the aeration chamber of an aerobic wastewater treatment plant is disclosed. It includes the release of oxygenation gas or air into the aeration chamber through a diffuser or the like at a position such that the air injected into the tank provides the necessary amount of oxygen for aerobic bacterial digestion of the waste while creating a current or circulation pattern in the chamber that forces every portion of the fluid within the aeration chamber into circulation thus preventing the accumulation of solids as sludge in the wastewater treatment plant.
摘要:
A system is provided for verifying operation of a plurality of alarm systems in a plurality of environmental equipment systems that comprises a plurality of first communication nodes and a plurality of second communication nodes. Each second communication node is typically mounted within a yard to about six hundred yards from respective first communication nodes. The first communication nodes send a first verification signal, e.g., a heartbeat signal to verify the alarm systems to the second communication nodes at first predetermined intervals. The plurality of second communication nodes detect when the first verification signal is not received at the first predetermined intervals. The second communication nodes then determine whether to send a malfunction notification to a server base on predetermined criteria. The second communication nodes may send a second heartbeat signal to the server at other predetermined intervals.
摘要:
A system for introducing a liquid disinfectant into treated wastewater comprising a source of liquid disinfectant, a sensor to detect one of flow or level of treated wastewater in a receiver from or in a wastewater treatment system, a selectively operable pump to transfer the liquid disinfectant from the source into the treated wastewater and a controller operatively connected to the pump to selectively activate the pump in response to sensed, increased flow or level of the treated wastewater in the receiver for said wastewater above a sensed, predetermined point.
摘要:
A defined current and aeration system for the aeration chamber of an aerobic wastewater treatment plant is disclosed. It includes the release of oxygenation gas or air into the aeration chamber through a diffuser or the like at a position such that the air injected into the tank provides the necessary amount of oxygen for aerobic bacterial digestion of the waste while creating a current or circulation pattern in the chamber that forces every portion of the fluid within the aeration chamber into circulation thus preventing the accumulation of solids as sludge in the wastewater treatment plant.
摘要:
A system for the chemical treatment of wastewater may be discharged in a night spray system, an on demand system or a dosing system. Tank 12 receives wastewater, and a discharge pump 16 pumps wastewater from the tank in the night spray system. A sensor 24 deactivates the discharge pump when the wastewater level reaches a predetermined low level, and in some applications activates the discharge pump when the wastewater level reaches a predetermined high level. A liquid disinfectant pump 38 pumps liquid disinfectant to the tank, and a controller 30 activates a liquid disinfectant pump for a selected time interval as a function of the discharge system.
摘要:
The present invention provides an electronic system and method that permits a responsible parties to determine whether services such as maintenance and repairs have been timely made on environmental equipment installations, such as homeowner wastewater treatment plants, to comply with regulatory requirements. The environmental equipment installations may be installed at different locations, operating on different inspection schedules, with different service companies, different owners, of different types, and be of different processing capacity. A personnel detector is preferably utilized to verify the actual physical presence of service personnel. In a preferred embodiment, the system provides a scheduler for service companies whereby information regarding service schedules and required repairs is available online. The scheduler is operable for generating service routes based on present requirements and/or for providing maps to locations for service personnel.
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.