Control of Sludge Bulking in Xinyi City Wastewater Treatment Plant
tract: This paper introduces the problem of sludge bulking in Xinyi city wastewater treatment plant. Through investigation analysis it is confirmed finally that trace metal element lacks to cause the sludge bulking .Therefore throw to add trace element to match well and store mud pool, so the problem of sludge bulking is solved.
Key words: Sludge bulking; Mud load; Trace metal element; SVI