Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xylem Water Solutions AB
Original Assignee
Stenberg Flygt AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stenberg Flygt ABfiledCriticalStenberg Flygt AB
Priority to ES0331198ApriorityCriticalpatent/ES331198A1/en
Publication of ES331198A1publicationCriticalpatent/ES331198A1/en
A device for preferably aerating wastewater, consisting of porous blocks (1) immersed in water and provided with at least one preferably cylindrical recess (2) connected to a supply of compressed air, so that the air is pressed through the pores and dispersed in a very large amount of extremely small bubbles, characterized in that the blocks (1) are constructed of soft cellular plastic with open cells, so that the pores of the blocks (1) will expand when the recesses (2) they are subjected to an overpressure and will contract when the air is interrupted, so that the pores are thus automatically kept free of mucilage and other impurities. (Machine-translation by Google Translate, not legally binding)
ES0331198A1966-09-141966-09-14A device for preferably washing wastewater. (Machine-translation by Google Translate, not legally binding)
ExpiredES331198A1
(en)
Device for the aeration of a suspension or of a liquid, for example, hundred or of black waters. (Machine-translation by Google Translate, not legally binding)
Process for improving the dynamic water resistance of a porous collagen fiber matrix, the resulting treated matrix, and a concentrate for use in said process