Topic
Diffuser (sewage)
About: Diffuser (sewage) is a research topic. Over the lifetime, 6487 publications have been published within this topic receiving 40404 citations.
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01 Jan 1992
TL;DR: In this paper, a combination of these experiments along with reformulation of the theoretical transfer equation permit separation of the gas transfer at the water surface and in the rising bubble plume.
Abstract: The gas transfer in aeration systems is broken into two processes: gas transfer at the bubble interface and gas transfer at the water surface. Experiments were conducted to separate these two sources of dissolved gas. Oxygen absorption was measured in a laboratory tank with air being diffused through a porous diffuser and then with nitrogen gas being diffused. The combination of these experiments along with reformulation of the theoretical transfer equation permit separation of the gas transfer at the water surface and in the rising bubble plume. Estimates of the exchange coefficient for the plume and surface are given.
14 citations
Patent•
25 Jul 1991
TL;DR: In this paper, a storage tank has a vertical, cylindrical tank, a fluid inlet, and a fluid outlet, including an inlet diffuser for introducing inlet cold water uniformly across a horizontal cross section of the tank bottom and thereby foil convection currents that cause mixing of hot and cold fluid so that more hot fluid is recovered at the outlet over time.
Abstract: A storage tank having a vertical, cylindrical tank, a fluid inlet, and a fluid outlet, includes an inlet diffuser for introducing inlet cold water uniformly across a horizontal cross section of the tank bottom and thereby foil convection currents that cause mixing of hot and cold fluid so that more hot fluid is recovered at the outlet over time. The tank may comprise a hot water heater where the water stored in the tank is heated within the tank by means disposed internally or externally of the internal storage chamber. Alternately, the water may be heated externally of the tank and stored within the tank.
14 citations
Patent•
01 Oct 2003TL;DR: In this paper, a system and method for constructing an elongated pump with multiple stages within an outer housing is described, and diffusers are divided into separate groups that are compressed during construction of the pump.
Abstract: A system and method is provided for constructing an elongated pump. The pump has multiple stages within an outer housing. Each stage comprises an impeller and a diffuser. The diffusers are divided into separate groups that are compressed during construction of the pump.
14 citations
TL;DR: The oxygen transfer coefficient was found to have a relationship with the depth of diffusing pipes (surface aeration depth) for the surface aeration system and an optimal depth of around 40 cm was obtained from this study.
Abstract: The effect of aerator module configuration, liquid flow rate and diffuser submergence on oxygen transfer efficiency was examined in a surface aeration system with venturi injectors using the clean ...
14 citations
Patent•
10 Sep 2011
TL;DR: In this article, an aeration system for treating liquid contained in a vessel is provided, which includes a header pipe and a plurality of lateral pipes coupled to the header pipe, each of which has one or more tubular diffuser membranes sleeved there around.
Abstract: An aeration system for treating liquid contained in a vessel is provided. The aeration system includes a header pipe and a plurality of lateral pipes coupled to the header pipe. The lateral pipes each have one or more tubular diffuser membranes sleeved therearound. Also provided is a coupling for sealingly joining end portions of two adjacent pipes is provided. The coupling includes two saddle sections and a deformable gasket extending between the pipes. The coupling is adapted for enabling one pipe to be removed and replaced from a series of pipes without substantially moving any adjacent pipes.
14 citations