碩士 / 國立臺灣大學 / 漁業科學研究所 / 86 / Filamentous phase of Helminthocladia australis stable on PU(
polyurethane) sponge to form algae bed. Determine different
form both of algae bed have different concentration nitrate-N
and ammonium-N of absorbed efficiency in water. Breeding water
of Grass Prawn Penaeus monodon larvae use algae bed to purify
water on the site simulate experiment, to proceed culture
reality of coordination experiment, estimate algae bed applied
aquaculture effluent purify treatment is feasible。
Filamentous phase stable on PU sponge in addition culture to
form algae bed. Deal with nitrogen-starved pass though seven
days to proceed nitrate-N and ammonium-N of absorbed
preposition experiment。Result show, algae bed absorbed nitrate-
N with different primary concentration, after seven days total
absorbed amount is no obvious difference, first day absorbed
amount is 50% above during experiment. But first hour of first
day with higher nitrate concentration produced higher absorbed
rate, and then post pon
to settle down。Algae bed absorbed ammonium-N with different
primary concentration, first day in higher concentration have
more higher absorance. Algae bed to ammonium-N absorbed rate is
high, and then post pone decrease。During seven days of
experiment, different ammonium-N primary concentration
obvioused different total absorbed amount。10 mg/l NH4+-N
treatment display the highest total absorbed amount, and
increase concentration, then absorbed amount is decrease。
Filamentous phase of algae piped into sponge to formed algae
bed, total absorbed amount of nitrate-N with different primary
concentration produced different total absorbed amount。Every
treatment of first day absorbed amount is 70% above of total
absorbed amount; different ammonium-N primary concentration
produced different total absorbed amount, and total absorbed
amount with time is positive relation and nonlinear。
On purify test of larvae breeding water quality , test level is
ammonium-N 1.72 mg-N/l, nitrite-N 195.7 g-N/l, nitrate-N
1.008 mg-N/l and phosphate-P 244.9 g-P/l。treatment larvae
survive rate of test end is 92.91%(treatment)、87.34%(change
water) and 84.86%(control)。 On the site simulate experiment
algae bed efficiency is low be cause of water temperature
difference is high and suspension adhere effect is highly algae
body absorbed effect and microbiological effect rate is higher
algae body absorbed r
| Identifer | oai:union.ndltd.org:TW/086NTU00451008 |
| Date | January 1998 |
| Creators | Liu, Kuan-Fu, 劉冠甫 |
| Contributors | LOU, SHOW-WAN, 周宏農, 廖一久, --- |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 70 |
Page generated in 0.0015 seconds