BioReco: wastewater

USM Malaysia 2005. University Lake, Penang. BioReco 800.

Purified wastewater in Malaysia.

Sewage from Penang, Malaysia, is distributed into "Buffer" lakes during heavy rainfall.
The University Lake is a "Buffer lake".

But BioReco 800 solved the problems in the University Park Lake

USM Malaysia. University of Penang.

BioReco 800 aerates the lake with microbubbles

Reference lake without BioReco, inflow of black sewage during rainfall

Sewage from Penang, Malaysia, is distributed into "Buffer" lakes during heavy rainfall.
The University Lake is a "Buffer lake".
The water level can rise to 1 meter above normal water level

After 2 months of continuous operation, measurements are taken: pH

Black sludge was oxidized away, the lakebed is now odorless gravel.
Excavated bottom samples were stored in airtight containers
After 3 days, presented at the meeting with participants from the Danish Embassy in Kuala Lumpur.
The sludge samples were still odorless

Monitor lizards and freshwater turtles got shiny skin

The turtles' shells were cleaned of algae.

Measurements before sunrise of BioReco Lake, pH 7.04 water temperature 31.2
Oxygen saturation of water is 10 mg./liter = 100 %
Oxygen measurement 02. - 3.1 – Fish flee from water areas with pH below 4.

USM Malaysia, pH measurement University lakes during the day. Oxygen (02) measurement 15.5
Algae growth in the lake transfers oxygen to the water via sunlight during the day.
At night, the algae decompose and consume oxygen for decomposition processes.
This leads to fish kills and the water smells rotten.

Large fish lie dead at the waterline, smaller fish gasp for oxygen at the water surface

Fish for Breakfast.
First the Monitor lizards eat, then the Vultures come, and finally Gulls and Herons remove the rest.

Underwater photo BioReco 800

 

Author Knud Dencker-Jensen