WEC Water, a leading mechanical and electrical EPC contractor, has supplied and installed 15 NEWgenerator off-grid sanitation systems in a number of Eastern Cape schools
The contractor undertook this work in light of the undignified and unsafe sanitation that posed a major problem to some schools in Eastern Cape. According to Ntwanano Mandlazi, project engineer at WEC Water, many had previously relied on unsafe and unhygienic pit latrines while being located in areas where water is scarce and electricity is unreliable.
Safe and efficient water treatment
In order to meet such challenges, WEC Water proposed the NEWgenerator that treats blackwater from toilets and basin water through biological, physical and chemical processes to a quality suitable for reuse as flushing water in a virtually closed loop system.
According to the company, each NEWgenerator is built into a 6 m refurbished shipping container and consists of an anaerobic baffled reactor (ABR), membrane filtration, a nutrient capture system (NCS) and disinfection. The systems also allow for remote monitoring by the WEC Water team and each unit is powered by 10 solar panels.
Each NEWgenerator is reportedly capable of treating 1,250 l of wastewater per day and nutrients can be recovered from the NCS for conversion into fertiliser. Further, the biogas which can be produced from the treatment process can be captured for cooking.
An impact in South Africa
The systems have now been deployed to 15 schools in the region.
“Once the WEC team has built, installed and commissioned the units, we also have a five-year operations and maintenance contract,” Mandlazi surmised. “This highlights our dedication to supporting these schools with the ongoing operation and upkeep of these units. We are particularly proud of our association with the NEWgenerator technology as it enables Africa to overcome the major challenges of access to safe flushing water and sanitation, ultimately restoring a greater sense of dignity to its people. The technology not only benefits schools but also informal settlements, and small businesses.”