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Listening Quiz: Xử Lý Nước Thải Cho Quy Trình Nhuộm Hoạt Tính – Advanced Level
Th2 20, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Kỹ sư dệt may (English for Textile Engineer)
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1.
What is the main topic of the conversation?
Training workers on machine maintenance
Choosing the best fabric for dye production
Planning effluent treatment for reactive dyeing wastewater
Designing a new marketing strategy
Explanation:
Sophia and Daniel discuss how to treat wastewater from reactive dyeing, including treatment methods and monitoring.
2.
According to Sophia, what is the first treatment step needed for the wastewater?
Biological treatment
Color testing
Physical treatment to remove solids
Heating the wastewater
Explanation:
Sophia says, ‘First, we need a physical treatment to remove solids.’
3.
Which chemical treatment does Sophia say is better for reactive dyes?
Coagulation
Oxidation
Sedimentation
Filtration
Explanation:
Sophia explains that oxidation is better for reactive dyes.
4.
What can be inferred about biological treatment in this case?
It is the most effective method mentioned
It is less effective for reactive dyes
It should be used before physical treatment
It removes solids better than filtration
Explanation:
Sophia directly says that biological treatment is less effective for these dyes.
5.
Which parameters should be monitored in the treatment system?
Temperature, pressure, and speed
Fiber strength, dye weight, and texture
Salt content, humidity, and airflow
pH, chemical oxygen demand, and color levels
Explanation:
Sophia says they should monitor pH, chemical oxygen demand, and color levels.
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