The invention relates to an automatic control device for a water softener, belonging to the technical field of a hard water treatment device.
本发明涉及硬水处理装置技术领域，特指软水器自动控制装置。
Sludge bulking is a hard job in activated sludge treatment, especially in the treatment of high load waste water from petrochemical plant.
污泥膨胀是活性污泥法污水处理中的一个难题，尤其在处理高负荷的石化污水中。
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