FAECES TO FERTILIZER YOUR URINE AND FAECES? DO YOU EVER THINK - - PowerPoint PPT Presentation

FAECES TO FERTILIZER

DO YOU EVER THINK ABOUT THE FATE YOUR URINE AND FAECES?

Abdul Alifuddin | Public domain | https://www.pexels.com/photo/gender-88808/

HUMAN WASTE AS FERTILIZER

SuSanA Secretariat | CC-BY-2.0 | https://flic.kr/p/5JSSG4 Farmyard, Phoenix, AZ | Rosanne Wielemaker | CC BY-NC-ND-4.0

NUTRIENT LOSSES IN THE CURRENT CHAIN

Linear nutrient metabolism | Rosanne Wielemaker | CC BY-NC-ND-4.0

INPUTS OUTPUTS CITY

NUTRIENT-RICH FERTILIZERS NUTRITIOUS FOOD WASTEWATER: NUTRIENTS FROM URINE & FAECES NUTRIENT LOSS TO AIR, WATER, SOIL

RECOVER NUTRIENTS FROM WASTEWATER FOR REUSE IN AGRICULTURE

Linear nutrient metabolism | Rosanne Wielemaker | CC BY-NC-ND-4.0

CITY INPUTS OUTPUTS

NUTRIENTS RECOVERED FROM URINE & FAECES NUTRITIOUS FOOD

NUTRIENTS IN OUR URINE AND FAECES

OpenIcons | Public domain | https://pixabay.com/nl/toilet-mannen-man-menselijke-wc-99039/

550 GRAMS PHOSPHORUS PER PERSON PER YEAR TO FERTILIZE 200M2 OF VEGETABLES

0% 20% 40% 60% 80% 100% Nitrogen Phosphorus Potassium

Source of N, P and K in household wastewater

Urine & Faeces Other

• Nutrient content and concentration
• Availability to plants
• pH
• Solubility
• Soil carbon content and pH

QUALITY OF RECOVERED PRODUCTS FOR PLANTS

Unknown Author | Public domain | https://upload.wikimedia.org/wikipedia/commons/0/0c/PSM_V82_D230_Maize_and_its_proposed_a siatic_origin.png

QUALITY OF RECOVERED PRODUCTS FOR PLANTS

Unknown Author | Public domain | https://upload.wikimedia.org/wikipedia/commons/0/0c/PSM_V82_D230_Maize_and_its_proposed_a siatic_origin.png

N03

• N02
• NH4

+

Nitrogen availability

• Nutrient content and concentration
• Availability to plants
• pH
• Solubility
• Soil carbon content and pH

e.g. COMPOST

QUALITY OF RECOVERED PRODUCTS FOR HUMAN AND ENVIRONMENTAL HEALTH

Wikiimages | Public domain | https://pixabay.com/nl/bacteri%C3%ABn-salmonella-67659/, LadyofProcrastination | CC BY-SA | https://upload.wikimedia.org/wikipedia/commons/b/b5/Assorted_pharmaceuticals_by_LadyofProcrastinatio n.jpg, Sarah C | CC-BY-ND-2.0 | https://flic.kr/p/5YNb7p, Alchemist-hp | FAL 1.3 | https://upload.wikimedia.org/wikipedia/commons/0/0c/Osmium_crystals.jpg

URINE FAECES

Wikiimages | Public domain | https://pixabay.com/nl/bacteri%C3%ABn-salmonella-67659/, LadyofProcrastination | CC BY-SA | https://upload.wikimedia.org/wikipedia/commons/b/b5/Assorted_pharmaceuticals_by_LadyofProcrastinatio n.jpg, Sarah C | CC-BY-ND-2.0 | https://flic.kr/p/5YNb7p, Alchemist-hp | FAL 1.3 | https://upload.wikimedia.org/wikipedia/commons/0/0c/Osmium_crystals.jpg

MIXED STREAMS

Annabel | CC-BY-SA-3.0 | https://upload.wikimedia.org/wikipedia/commons/e/e8/WWTP_Antwerpen-Zuid.jpg

WASTEWATER (TOILET, SHOWER, SINK, ETC.)

SEPARATED STREAMS

GREY WATER (SHOWER, SINK, ETC) YELLOW WATER (URINE) BROWN WATER (FAECES) KITCHEN WASTE (FOOD SCRAPS)

URINE TO STRUVITE

Phosphorus Platform | CC-BY-SA-NC-4.0 | http://phosphorusplatform.eu/images/struviet2.jpeg

FAECES TO COMPOST

Way of Nature Corporation | Public Domain | https://upload.wikimedia.org/wikipedia/commons/0/09/Compost_toilet.jpg, Jokevanderleij8 | Public Domain | https://pixabay.com/nl/vers-compost-hand-man-2386786/

POSSIBLE STAKEHOLDER INTEREST

ECONOMIC ENVIRONMENTAL SOCIAL WATER AUTHORITIES FARMERS CITIZENS

PROFIT QUALITY COMFORT

Reduce emissions No/low additional costs Guarantee product quality Fertilizer cost; Yield Product safety Sustainability awareness

FAECES TO FERTILIZER

SuSanA Secretariat | CC-BY-2.0 | https://flic.kr/p/6nYP5D