The removal efficiency of heavy metal in city wastewater treated by activated sludge process was studied.
重点研究了活化污泥法强化一级处理对城市污水中重金属离子的去除效果。
The process for disposing the acid sludge can reduce the cost of acid-removal, improve the acid-removal efficiency and improve the quality of recovered oil sludge.
该处理石油酸渣的工艺可以降低除酸成本，提高除酸效率并提高回收油渣的质量。
After the reconstruction of SBR, carbon storage sludge can be effectively taken from and returned to the SBR to improve nitrogen removal efficiency.
SBR经改造后，能有效实现取、返储碳污泥，提高了脱氮效果。
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