Apparatus and process for manufacturing bio-oxidation and nitrif

Details Apparatus and process for manufacturing bio-oxidation and nitrif Apparatus and process for manufacturing bio-oxidation and nitrif

1981-02-23

1982-06-08

Wityshyn, Michael G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156182, 156210, 156292, 1565801, 1565831, 228 1B, B06B 300, B23K 1904, B30B 1534, B32B 3120

Patent

active

043337791

ABSTRACT:
The present invention provides apparatus and a process for manufacturing a bio-oxidation and nitrification module useful in treating sewage and industrial wastewater. Paired thermoplastic flat sheet and corrugated sheet are nested in a cradle and advanced beneath a bank of ultrasonic welders to produce a sonic weld along those interfacial zones of the sheets which are in contact. Welded units of flat and corrugated sheets are stacked to a height equal to the height of the module and the edges of opposite sides of the stack are softened by heated platens to form an edge-seam which bonds the welded units together to form the finished module.

REFERENCES:
patent: 2405527 (1946-08-01), Skolnik
patent: 3445307 (1969-05-01), Balamuth et al.
patent: 3545062 (1970-12-01), Cox
patent: 3733238 (1973-05-01), Long et al.
patent: 4132581 (1979-01-01), Swartz

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