Effluent treatment systems

Businesses such as agri-processing SMEs typically produce effluents as a result of manufacturing processes as well as from their workers.  Untreated, effluents can be damaging and hazardous to the environment, people, animals, land and water systems.  There are a range of systems that can be used to treat various effluents, including biodigesters that generate by-products.



Biodigesters can be used as a waste management system for certain liquid effluents resulting from agri-processing, and still generate useful by-products such as gas.


Filter systems such as the one pictured are suitable for liquid effluents with no or very low solids content.  They can consist of a series of grades of aggregates and appropriate vegetation that extract pollutants from the effluent.  Fullwell Transform designed and constructed the filter bed system in the picture as a follow-on to the multi-chamber settlement tank system pictured above, which eventually rendered liquid effluent from cashew processing clean enough to be released into the local environment.

Multi-chamber settlement tanks

Liquid effluents can contain solids that can clog drainage systems and pollute the environments where they eventually end up.  Multi-chamber settlement tanks are an effective way of allowing such solids to separate from liquids, and settle in a series of progressive filter tanks, which can then be cleaned out on a periodic basis.  The final liquid effluent will be free of solids and significantly cleaner, and may even require no further treatment before being released into the environment.

Toilets & shower facilities for workers

Agri-processing SMEs also need systems to treat the solid and liquid effluents produced by their workforce.   Fullwell Transform has supported the design and construction of toilet and shower facilities for cashew processing workers in Burkina Faso.  This includes a urinal designed for women as well as men, which fed a biodigester alongside mango waste to maximise gas production.