Embed Size (px)
Citation preview
Engineering Design Approach for
Selection and Design of Treatment
Technologies
Dr. Linda Strande Sandec: Sanitation, Water and Solid Waste for
Development
February 2017, Chennai, India
Design Approach
www.sandec.ch/fsm_tools
Dr. Linda Strande, February 2017
Client
Required quality of treatment endproducts
work backwards…
… considering all design variables…
• FS characteristics and quantities
• Existing FS infrastructure and services
• Skills and capacities
• Legal requirements, regulations, norms
• Social acceptance
• Operation and maintenance
• Financial viability
• Etc, etc, etc
… to arrive at solution
Over-design wastes money and
resources
Under-design does not protect human
and environmental health
Design Variables
Dr. Linda Strande, February 2017
Design Variables?
I client
II. end-requirement of treatment products
policy and regulations
sanitation and public health concerns
site evaluation
and availability
climate
operations and maintenance
economic situation
social preferences
client demands
what else???
Dr. Linda Strande, February 2017
Design Approach
Dr. Linda Strande, February 2017
Design for Resource Recovery
www.sandec.ch/fsm_tools
Dr. Linda Strande, February 2017
Design Approach
Dr. Linda Strande, February 2017
Quantification and Characterization
Dr. Linda Strande, February 2017
Household Level
• Last emptied
• Emptying frequency
• # users
• Containment volume
• Was it full
• Was it fully emptied
Emptying Service
• Containment
fully emptied
• Truck full
• Truck volume
• Water added
Faecal Sludge Accumulation
Dr. Linda Strande, February 2017
In preparation Strande, Schoebitz, Bischoff, Ddiba, Okello, Lohri, Niwagaba
Faecal Sludge Accumulation
Dr. Linda Strande, February 2017
Faecal Sludge Accumulation
Dr. Linda Strande, February 2017
Faecal Sludge Accumulation
Dr. Linda Strande, February 2017
Faecal Sludge Accumulation
Dr. Linda Strande, February 2017
Faecal Sludge Accumulation
Dr. Linda Strande, February 2017
Data Management
Dr. Linda Strande, February 2017
Schoebitz, L., Bischoff, F., Lohri, C.R., Niwagaba, C., Siber, R., Strande, L. GIS
analysis and optimization of faecal sludge logistics at city-wide scale in Kampala,
Uganda. Sustainability (in press)
GIS Tools
How to improve future
estimates for quantification
and characterization?
Variability of Faecal Sludge Importance of characterization!!!
Dr. Linda Strande, February 2017
Hypothesis: Spatially Available
Demographic Data – 180 Samples
Dr. Linda Strande, February 2017
In preparation Strande, Schoebitz, Bischoff, Ddiba, Okello, Lohri, Niwagaba
Dr. Linda Strande, February 2017
Predictors of Characteristics In preparation Strande, Schoebitz, Bischoff, Ddiba, Okello, Lohri, Niwagaba
Dr. Linda Strande, February 2017
COD – TS Correlation In preparation Strande, Schoebitz, Bischoff, Ddiba, Okello, Lohri, Niwagaba
Dr. Linda Strande, February 2017
Predictors of Characteristics In preparation Strande, Schoebitz, Bischoff, Ddiba, Okello, Lohri, Niwagaba
A
B
C
A: Core sample in septic tank
B: Core sample in truck
C: Grab sample at discharge
Dr. Linda Strande, February 2017
In preparation
Sampling Location In preparation Strande, Bassan, Ferré, Schoebitz, Hoai, Nguyen
Dr. Linda Strande, February 2017
Sampling Location In preparation Strande, Bassan, Ferré, Schoebitz, Hoai, Nguyen
Design Approach
Dr. Linda Strande, February 2017
Massive Open Online Course "Introduction to
Faecal Sludge Management"
Language: English Subtitles: French, Spanish and English Costs: FREE www.coursera.org/learn/faecalsludge
www.sandec.ch/fsm_tools
