学生对 洛桑联邦理工学院 提供的 Introduction to Faecal Sludge Management 的评价和反馈

Fantastic course... Fantastic teaching approach...

Very informative introduction to feacal sludge management explained in a very clear way.

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

Very interesting and well explained!

Great course, some modules moved a bit too quick for me but the back up information was really informative and supported this we

Muy buen curso. Recomendado.

Interesting course, good addition to the MOOC series.

Entire course is a new learning for me.

This course provides with a basic overview of various steps involved with faecal Sludge collection, transport and treatment. It also gives information on alternative uses of faecal sludge such as nutrient and energy recovery. A very good learning course for individuals who are concerned with faecal waste treatment. I personally learned a lot by taking this course.

A very usefull engineering tool box

Really enjoyed this course, which was professionally presented and facilitated. Great overview of FSM and hub of information.

Provided a great overview of the topic. Great support for a manager trying to gain perspective on the complexities of FSM and sanitation systems.

Very interesting, well explained and easy to understand. It is also a good presentation of the corresponding book.

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.

bad course