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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?
Choosing the best fabric for dye production
Training workers on machine maintenance
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?
Heating the wastewater
Physical treatment to remove solids
Color testing
Biological treatment
Explanation:
Sophia says, ‘First, we need a physical treatment to remove solids.’
3.
Which chemical treatment does Sophia say is better for reactive dyes?
Sedimentation
Coagulation
Filtration
Oxidation
Explanation:
Sophia explains that oxidation is better for reactive dyes.
4.
What can be inferred about biological treatment in this case?
It is less effective for reactive dyes
It should be used before physical treatment
It is the most effective method mentioned
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?
Fiber strength, dye weight, and texture
pH, chemical oxygen demand, and color levels
Temperature, pressure, and speed
Salt content, humidity, and airflow
Explanation:
Sophia says they should monitor pH, chemical oxygen demand, and color levels.
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