M
Oct 3, 2021
It is an amazing course, I enjoyed quite new topic soo far and I loved the way of teaching of mentors in course. Thank you coursera for giving me an opportunity to better understand the new knowledge.
BD
Jun 10, 2018
It was an excellent learning opportunity with a new challenging field of research. I am keen to register more subjects in the future in related subjects under your mentoring. RegardsDr. Bhaskar Das
By Gichinga W
•Jan 9, 2020
amazing
By samidadol
•May 6, 2022
great
By Deleted A
•Oct 29, 2023
poop
By Sourabh v p
•May 23, 2023
good
By Mona A A
•Jul 8, 2020
g
o
o
d
By rajeev b
•Jul 7, 2020
good
By Saleh M A
•Nov 24, 2019
I learn more from this course such as how mange project, how I understood key concepts of project, kind of the wastes, how treated them and how can I benefitfrom then such as use them as composetion. Finally, Thank very much to all instructors or anyone contributes in preparing this course to content all these information that really gain more to background
By Pietro F
•Apr 19, 2020
The course is well structured. I missed some steps in the overall faecal sludge treatment because I never studied it before. I think it should be helpful to give a process flow diagram of the entire treatment. I also missed some treatment objective detailed explanation, for example, of pathogen inactivation.
By birendra k
•Oct 9, 2022
Excellent course. It helped me a lot to know something new in the field of city sanitation. This course is really fruitful for the sanitary engineers. The course instructors are also pretty good. Thank you for providing me with this opportunity to take this online course.
By Diane T
•Mar 7, 2022
A very informative course! i learnt a lot and the level was such that it was always challenging and never boring. thank you to all the team of lecturers, first for your time sharing your knowledge and for the clarity of the course.
By Michael B
•Jun 5, 2017
Provided a great overview of the topic. Great support for a manager trying to gain perspective on the complexities of FSM and sanitation systems.
By Mahesh G
•Apr 21, 2020
The lectures handled were simple and easily understandable. It would have been more useful, if a few more case studies would have been included.
By Kyaw T S
•Aug 14, 2020
It provides insights into the technological gaps in the waste management system encountered in developing countries.
By KARINE L
•May 17, 2019
Very interesting, well explained and easy to understand. It is also a good presentation of the corresponding book.
By vinod n
•May 15, 2020
Good course, requires more case study and pictorial and analytical explaination and government planning and goals
By Diallo A A
•Jan 13, 2023
très bon MOOC vraiment riche en enseignement dans la Gestion des boues fecales
By Shibin J
•Apr 11, 2021
Very important for students interested in environmental engineering.
By Joshua A
•Mar 3, 2021
course was very engaging.....so so much material to pour on.....
By Grace K
•May 9, 2020
Great information and so practical that it is ready to use!
By Kene C D
•Nov 1, 2020
The course was very good and very informative
By Khwmdwn M
•May 16, 2020
Good Course. I have learnt a lot about FSSM
By Aniket T
•May 23, 2023
it was very nice session
By Sunil B
•Mar 15, 2022
Excellent course!!!!
By Janhavi W
•May 22, 2023
By shweta m
•Apr 30, 2019
Unplanted sludge drying beds are shallow filters filled with sand and gravel with an under-drain at
the bottom to collect leachate. Sludge is discharged onto the surface for dewatering (Figure 7.1). The
drying process in a drying bed is based on drainage of liquid through the sand and gravel to the bottom
of the bed, and evaporation of water from the surface of the sludge to the air. The design as well as the
operation of the drying bed is fairly straightforward, provided the sludge loading rate is well selected
and the inlet points for depositing the sludge onto the bed are properly designed. Depending on the
faecal sludge (FS) characteristics, a variable fraction of approximately 50-80% of the sludge volume
drains off as a liquid (or leachate), which needs to be collected and treated prior to discharge (Tilley
et al., 2014). After reaching the desired dryness, the sludge is removed from the bed manually or
mechanically. Further processing for stabilization and pathogen reduction may be required depending
on the intended end-use option. When considering the installation of a drying bed, the ease of operation
and low cost needs to be considered against the relatively large footprint and odor potential.