From crap to irrigation water

The zero energy revolution for off-mains sewage treatment

UNICEF and WHO estimate that:

2.4 billion people – one-third of the world’s population – will remain without access to improved sanitation facilities in 2015

1 billion (15% of the world population) still practice open defecation. Diarrhoeal diseases linked to a lack of safe water, sanitation and basic hygiene kills +/- 1,400 children under five every day. This amounts to over half a million children per year. (second largest cause of under-five mortality globally)

1.2 billion people have difficult access to power sources if not no access at all.

Poor water and sanitation result in economic losses estimated at US$260 billion annually in developing countries, or 1.5% of their GDP. 

(figures from 2011, http://www.unicef.org )

Some facts: about sanitation and power sources

access

• Constructed wetlands (reed beds)

Energy-freeØ Very large footprintØ Restricted access within the area usedØ Tough + long installation works

• Electric sewage plants

CompactØ Electric thus prone to failureØ High maintenanceØ High operation costs

Traditional off-mains sewage treatment

solutions:

The BIOROCK zero-energy sewage treatment plant:

Purification results:

BOD5 4  mg/l. (99%)COD 26  mg/l. (96%)S.S. 3  mg/l. (99%)

Sizing of the BIOROCK sewage treatment plants

6 PE

10 PE

15 PE

30 PE

Up to 300 PE

Installation of the BIOROCK sewage treatment plants

1°) Excavating the site

2°) Installing the tanks

4°) Backfilling and balancing the tanks with water

3°) Connecting the pipes

5°) The treatment plant is ready for use

Multiple BIOROCK®: 45 / 50 PEPrimary tank: 45 x 500 liters = 22.500 L (built locally in concrete)

Flow management system

3 x BIOROCK 15 = 45

Multiple BIOROCK®: 45 / 50 PE

Multiple BIOROCK®: 90/100 PEPrimary tank: 90 x 500 liters = 45.000 L (Built locally, concrete)

Flow management system

6 x BIOROCK 15 = 90

Multiple BIOROCK®: 90/100 PEPrimary tank: 90 x 500 liters = 45.000 L (Fiber Glass)

Flow management system

6 x BIOROCK 15 = 90

1

3

2

Multiple BIOROCK®: 90/100 PE6 x BIOROCK 15

6 x aeration pipes(air in)