当前课程知识点:环境工程专业英语 > 1. Drinking Water Treatment > 1.2 Conventional drinking water treatment > Discussion 1.2
1)Conventional drinking water treatment involves a variety of physico-chemical processes as depicted in this course. Please explain the rationale for the treatment train commonly employed by full-scale drinking water treatment plants, i.e., coagulation-sedimentation-filtration-disinfection.
(Hint: Why is coagulation placed before other processes? Similarly, why does disinfection situate at the end?)
2)Chlorine disinfection inactivates waterborne pathogens by utilizing the oxidation potential of free chlorine or hypochlorite. In contrast, membrane filtration is capable of directly eliminating pathogens by the physical sieving effect. In your opinion, what would be the pros and cons of the two technologies for the disinfection of drinking water? Furthermore, is there an approach to combine the two technologies to achieve better water quality? Please draw a diagram to explain your idea.
(Hint: Remember the occurrences of disinfection by-products and re-contamination.)
-1.1 Introduction of water resource
--1.1 Introduction of water resource
-1.2 Conventional drinking water treatment
--1.2 Conventional drinking water treatment
-Task 1
-2.1 Introduction of wastewater
--2.1 Introduction of wastewater
-2.2 Introduction of wastewater treatment
--2.2 Introduction of wastewater treatment
-2.3 Physical unit process
-2.4 Chemical unit process
-2.5 Fundamentals of biological unit processes
--2.5 Fundamentals of biological unit processes
-2.6 Suspended growth biological treatment processes
--2.6 Suspended growth biological treatment processes
-2.7 Attached growth biological treatment processes
--2.7 Attached growth biological treatment processes
-2.8 Anaerobic biological treatment processes
--2.8 Anaerobic biological treatment processes
-2.9 Nutrient Removal processes
--2.9 Nutrient Removal processes
-Task 2
-3.1 Smog
--3.1 Smog
-3.2 Visibility and haze
-3.3 Particle size
-3.4 Climate change
-Task 3
-4.1 What is solid waste
-4.2 Issues in solid waste
-4.3Management of solid waste
--4.3 Management of solid waste
-4.4 Source control of solid waste
--4.4 Source control of solid waste
-4.5 Collection and transportation of solid waste
--4.5 Collection and transportation of solid waste
-4.6 Waste treatment technology
--4.6 Waste treatment technology
-4.7 Destination of solid waste treatment
--4.7 Destination of solid waste treatment
-Task 4
-5.1 A brief introduction of research
--5.1 A brief introduction of research
-5.2 How to read scientific papers and management of references
--5.2 How to read scientific papers and management of references
-5.3 Research proposal (1)
-5.4 Research proposal (2)
-Task 5
-6.1 What makes a great paper
--6.1 What makes a great paper
-6.2 Writing style of journal paper
--6.2 Writing style of journal paper
-6.3 Research article structure
--6.3 Research article structure
-6.4 Figures and tables
-6.5 Methodology(1)
-6.6 Methodology(2)
-6.7 Result
-6.8 Introduction(1)
-6.9 Introduction(2)
-6.10 Discussion and conclusion
--6.10 Discussion and conclusion
-6.11 Title
-6.12 Attribution
-6.13 Abstract and acknowledgement
--6.13 Abstract and acknowledgement
-6.14 Submission of academic paper(1)
--6.14 Submission of academic paper(1)
-6.15 Submission of academic paper(2)
--6.15 Submission of academic paper(2)
-6.16 Publication of academic paper
--6.16 Publication of academic paper
-Task 6
-7.1 E-mail expression
-7.2 The structure of presentation
--7.2 The structure of presentation
-7.3 The delivery of presentation
--7.3 The delivery of presentation
-7.4 Question and answer session
--7.4 Question and answer session
-7.5 Chairing a conference