Dar es Salaam. To remove wastewater and conserve the environment in cities, Waste Water Solution Company has designed a technology that can help cleaning and making the water usable for agriculture.
The company says it has discovered that lower than 10 per cent of households in Dar es Salaam are connected to the sewage system. The technology known as On-Site Sustainable Wastewater Management System has been showcased during the 42nd Dar es Salaam International Trade Fair.
“Our main objective is to reduce environmental pollution caused by wastewater,” said the company’s planning and investment manager , Mr Talib Mtemani.
He said the technology started being used in 2010 and had already been connected to more than 40 households in Dar es Salaam.
He said traditional practices of wastewater management using septic tanks and soakage pits as well as latrines had been contributing negatively to the environmental degradation by realising trace elements such as ammonia and phosphate.
“This system lets the water go on ground or use for agriculture,” he said
The technology can save the money that house owners spend on paying waste collectors.
water but also to conserve the environment and protect community from outbreak diseases.
Explained on how the technology work, the system will be connected in the setting chamber as a primary treatment in which raw waste is digested in anaerobic condition and filter out all settable and floating materials.
He said after connected the system in the chamber the digestion of biodegradable matters continues in anaerobic baffle reactor with the liquid moving up and down through different incoming waste and then already settled bacteria.
Finally effluent passes through filter materials surrounded by bacteria membrane which is more effective in removing dissolve solids remain from the above stages. “At this stage the effluent is safe and clean enough to the infiltrated to the soil without polluting the ground water.