It was investigated that the effect of type of carbon sources

including acetic acid/propionic acid=1/2

acetic acid/propionic acid=2/1

propionic acid

methanol

ethanol

glucose

starch and domestic wastewater

on anaerobic substrate storage and conversion of activated sludge domestricated cultured with sodium acetate with removing phosphorus.The results showed that with acetic and propionic acid as carbon source

the system’s storage capacity for substrate was larger

in which the maximum values of PHA

PHB and PHV was of the 6.0 mmolC·L-1

4.25 mmolC·L-1 and 3.69 mmolC·L-1(at acetic acid/propionic acid=2/1）

respectively.When methanol

ethanol

glucose

starch and domestic sewage were used as carbon source for substrate storage

the storaged substance was mainly PHB

but their capacity lower than that of acetic and propionic acid.The release of phosphorus increased with propionic acid content in combined acetic and propionic acid and reached the maximum 16.53 mg·L-1 at propionic acid as sole carbon source.With starch and domestic sewage as a carbon source

the phosphorus release was small

3.56 mg·L-1 and 6.75 mg·L-1

while methanol

ethanol and glucose as carbon source the activated sludge showed no significant phosphorus release features.