[Research advance in aerobic sludge granulation for wastewater biological treatment].

The fundamentals and applications of aerobic sludge granulation technology in wastewater biological treatment are reviewed. The aspects discussed include the general characteristics and microbial structure of aerobic granules, major factors influencing granulation, models of sludge granulation, and their applications. This review is hoped to elucidating a unified interpretation of the formation of aerobic granules under various operation conditions.

[Start-up, formation and microbial community analysis of aerobic granules in SABR for treatment of organic wastewater containing aniline and chloroanilines].

The granulation of aerobic sludges for high-rate biodegradation of organic wastewater containing aniline and chloroanilines was investigated in a laboratory-scale sequencing airlift bioreactor ( SABR). Aerobic granules were observed in 15 days after start-up in SABR. After subsequent 83 days, SABR was operated sequentially in superficial air velocity of 2.

[Study on the oxygen condition in subsurface flow wetlands in operation].

Horizontal flow wetlands with various kinds of plants grown were studied on their operation characteristics and oxygen condition in treating the sewage out from the primary sedimentary basin. The rules of oxygen condition changed with space and time were studied. Researches showed the oxygen concentration was low in wetlands, and it appeared as a rule that low in both ends, but high in middle of beds.