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Activated sludge settling issues are common in wastewater treatment systems. Problems such as fine sludge, slow settling, and difficulty in settling often occur...

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Current status of the treatment system: Wastewater from residential buildings, high-rise buildings. System capacity: 100 m³/day. Aerobic tank: 60 m³. Nitrogen levels: 1.5 times higher than the discharge standards.

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The drainage system at the production facility is clogged, leading to slow drainage and an increasing occurrence of unpleasant odors.

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The drainage system of the sink in the kitchen and the food preparation sink is draining very slowly, causing water to back up and overflow outside the sink rim.

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The system does not meet the QCVN 40:2011/BTNMT standards for industrial wastewater. The wastewater has a slight sour odor, and the treated water quality is not as good as initially. The indicators for BOD, COD, TSS, and total nitrogen exceed the standards.

 

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