noitpO 1

Waste water treatment

Soak pitSuitable for: A small quantity of waste water

(e.g. domestic waste water from a house, chemical mixing point, spraying equipment washing water of a smallholder farm)

Broken bricks or stonesto remove big particles

Charcoalto remove chemical contaminants

Sand and gravelsto remove small particles

You can build the wall structure with a cement, or

remove the bottom part of a plastic or metal drum

and bury it.

Make sure that you keep a certain portion above the ground level to prevent surface water from flowing inside. If the surface water goes into the soak pit, it will overflow very quickly.

noitpO 2 Three tanks on a slope

Suitable for: A large quantity of waste water (e.g. waste water from a factory, waste water from workers’ village, spraying equipment washing water of a large plantation)

A place with slope

Put gauge to trap solid wastebefore the water goes into the tank

Broken bricksor stones

Make sure that the outlet is at the bottom of the tankso that the water will go through the filtration.

Charcoal

Sand and gravel

Gauge to trap solid waste

noitpO 3

Waste water treatment

Three tanks on a flat place

Broken bricksor stones

Charcoal

Sand and gravel

Solid waste trap

Suitable for:

A large quantity of waste water (e.g. waste water from a factory, waste water from workers’ village, spraying equipment washing water of a large plantation)

When there is no slope

When there is a limited space for a water treatment system

Opening at the bottom

Lower than the first wall

Waste water treatment

noitpO 4

Three ponds with aquatic plants

Suitable for:

A very large quantity of waste water

A place with some slope

When there is a large space available for a water treatment system

Aquatic plants Check gates

Metal or concrete frames on the sides

Wood planks slotted between the frames

You can adjust the number of wood planks placed inside depending on the water level of each pond.