Controlled carbonate removal from water conduit systems

Details Controlled carbonate removal from water conduit systems Controlled carbonate removal from water conduit systems

1997-04-16

1999-04-20

Soderquist, Arlen

Chemistry: analytical and immunological testing

Condition responsive control

134 3, 134 221, 134 2211, 134 2214, 134 2218, 134 2219, 134 28, 134 41, G01N 3500, C23G 102, B08B 903, B08B 300

Patent

active

058957634

ABSTRACT:
A method for controlled removal of carbonate blockage from interior walls of water conduit systems having substantial reduction in flow capacity. A section of the system to be cleaned is isolated and an aqueous liquid is circulated to establish baseline liquid flow rates. An acidic cleaning composition which removes the blockage but which generates carbon dioxide gas is then added under controlled conditions to a circulating aqueous cleaning solution. The fluid flow rates and pH are monitored throughout treatment. Adjustments are made if necessary to maintain a controlled amount of carbon dioxide gas liberated. The aqueous acid cleaning solution is circulated in an open loop system with continued addition of acid until the outflow rate decreases and once again equals the inflow rate. Substantial inorganic carbonate deposits are thus removed from water conduit systems while dangerous conditions due to excessive generation of carbon dioxide gas are avoided.

REFERENCES:
patent: 2758970 (1956-08-01), Saukaitis et al.
patent: 2807585 (1957-09-01), Gardner et al.
patent: 2941949 (1960-06-01), Saukaitis
patent: 3077454 (1963-02-01), Monroe et al.
patent: 3607781 (1971-09-01), Kaneko et al.
patent: 3688137 (1972-08-01), Filhol
patent: 3885913 (1975-05-01), Redmore et al.
patent: 4025359 (1977-05-01), Connelly, Jr.
patent: 4063317 (1977-12-01), Santore
patent: 4075120 (1978-02-01), Martucci
patent: 4089795 (1978-05-01), Bailey et al.
patent: 4199469 (1980-04-01), Walzer
patent: 4310435 (1982-01-01), Frenier
patent: 4333773 (1982-06-01), Fjallstrom
patent: 4439339 (1984-03-01), Doumit
patent: 4477287 (1984-10-01), Kush et al.
patent: 4541945 (1985-09-01), Anderson et al.
patent: 4554090 (1985-11-01), Jones
patent: 4587030 (1986-05-01), Casey
patent: 4614600 (1986-09-01), Schilling et al.
patent: 4637899 (1987-01-01), Kennedy, Jr.
patent: 4670189 (1987-06-01), Tomibe et al.
patent: 4692252 (1987-09-01), Atwood et al.
patent: 4780150 (1988-10-01), Anderson et al.
patent: 4851149 (1989-07-01), Carandang
patent: 4993442 (1991-02-01), Young
patent: 5011539 (1991-04-01), Matsuda et al.
patent: 5013366 (1991-05-01), Jackson et al.
patent: 5021096 (1991-06-01), Abadi
patent: 5094757 (1992-03-01), Light
patent: 5346626 (1994-09-01), Momozaki et al.
patent: 5360488 (1994-11-01), Hieatt et al.
patent: 5527395 (1996-06-01), Perry et al.
L.S. Foshko et al, Teploenergetika 1969, 16, 31-34.
A.I. Glazyrin et al. Energetik 1971, 10.
V.I. Maksin et al, Soviet J. Water Chem. Tecnol. 1989, 11, 74-81.

Affiliated with

Also associated with

Rating

Controlled carbonate removal from water conduit systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controlled carbonate removal from water conduit systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled carbonate removal from water conduit systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2247695