About 1,795,299 results (3,234 milliseconds)

US4519831A - Method of converting sewage sludge to fertilizer ...

https://patents.google.com/patent/US4519831A/en
... sewage sludge solids in he Milwaukee Metropolitan Sewage Treatment District Plant. ... means to form fertilizer granules. 11. The method of claim 10 ...

CN105461179A - Sewage treatment system and technology for ...

https://patents.google.com/patent/CN105461179A/en
Mainly utilize the active sludge in membrane separation plant trap water and larger molecular organics.In membrane bioreactor system, activated sludge ...

US2989186A - Diffuser assembly for sewage disposal plants ...

https://patents.google.com/patent/US2989186
... sewage tank and then subsequently, descending into the tank to attach suitable means to the diffuser for pulling the same out of the tank from a point above ...

CN103553280A - Cyclic activated sludge system (CASS ...

https://patents.google.com/patent/CN103553280A/en
Feb 5, 2014 ... ... waste disposal plant and method. CN203820608U 2014-09-10 Village and town sewage treatment and deep purification integrated equipment.

Wastewater Treatment Plant — Google Arts & Culture

https://artsandculture.google.com/story/twWBz9umIhNWCQ
Pipes that come from domestic houses contain all types of water waste, from toilets and sinks to washing machines and bathwater. Industrial sources might ...

US2742359A - Protein from aerated sewage and whey - Google ...

https://patents.google.com/patent/US2742359A/en
This invention also utilizes another waste product--the whey from cheese factories-40 help sterilize the protein bearing bacterial plants after they have .grown ...

US3528462A - Sewage disposal - Google Patents

https://patents.google.com/patent/US3528462A/en
... discharge means communicating with the on-board waste facility. 2. A sewage collection and storage system according to claim 1 wherein said conveying means ...

US7488413B2 - Waste water treatment plant and method - Google ...

https://patents.google.com/patent/US7488413B2/en
4 . Beneath the lower screen 34 is defined a biofilm collection chamber 40 which communicates radially with a settlement chamber 42 arranged concentrically ...

US3525436A - Sewage treatment plant - Google Patents

https://patents.google.com/patent/US3525436A/en
A further object of the invention is to so construct and locate the skimmer adjusting means, that an attendant may quickly and easily adjust the skimmer ...

WO2009050163A2 - Method for electrochemical sewage treatment ...

https://patents.google.com/patent/WO2009050163A2/en
Method for electrochemical sewage treatment by means of a ... treatment in a municipal sewage treatment plant or the discharge into the receiving waters,.

US1738521A - Septic sewage-disposal plant - Google Patents

https://patents.google.com/patent/US1738521
This invention relates to septic sewage disposal plants, and it has for its object to provide a construction, in devices of this character, by `means of ...

US3415378A - Sewage treatment system - Google Patents

https://patents.google.com/patent/US3415378A/en
An object of this invention is the provision of a sewage treatment means ... Donald Three stage sewage treatment plant. US6409914B1 * 2000-08-22 2002-06-25 ...

US3917532A - Sewage treatment plant - Google Patents

https://patents.google.com/patent/US3917532A/en
A package sewage treatment plant, of the type having concentric inner and outer tank walls, includes an intermediate concentric wall between the inner and ...

CN208082013U - A kind of sewage disposal scum collector ...

https://patents.google.com/patent/CN208082013U/en
A kind of sewage disposal scum collector, including processing pond and collection device, cleaning plant includes driving device and the pulley that is ...

US3355019A - Eductor control in sewage treatment plant - Google ...

https://patents.google.com/patent/US3355019A/en
As is known in the art, an air lift operates to'raise liquids from a lower elevation to a higher elevation -by means of air discharged in the form of many small ...