This is a continuation of application Ser. No. 07/945,738, filed Sep. 16, 1992, now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
3235234 | Beaudoin | Feb 1966 | |
5096577 | Ngo et al. | Mar 1992 | |
5122266 | Kent | Jun 1992 | |
5228998 | DiClemente et al. | Jul 1993 |
Entry |
---|
"Boosting Pond Performance With Aquaculture", by Viet Ngo, Operations Forum, vol. 4, No. 8, Aug. 1987, p. 20. |
BIOdek Biological Wastewater Treatment Media, Munters. |
Captor Hi-Rate Nitrification, Ashbrook-Simon-Hartley. |
"Ammonia Nitrogen Removal In Attached-Growth Ponds", by H. K. Shin and Chongrak Polprasert, Journal of Environmental Engineering, vol. 114, No. 4, Aug. 1988. |
Number | Date | Country | |
---|---|---|---|
Parent | 945738 | Sep 1992 |