Wastewater Management Ltd. is a wastewater treatment company specialising in the design, operation and optimisation of wastewater treatment plants. Wastewater Management Ltd. also offers a specialist plant performance testing service and conducts oxygen transfer efficiency (OTE) testing to the ASCE standard "Measurement of Oxygen Transfer in Clean Water" (ASCE/EWRI 2-06), and mixing efficiency testing of anaerobic digesters and anoxic/selector zones of activated sludge plants.To support our on-site services, Wastewater Management Ltd. has a laboratory for the routine analysis of waste water including the microscopic examination of activated sludge. The laboratory also has the facility to conduct benchscale studies to assist in the design of effluent treatment plants including anaerobic digestion trials with both gas volumetric and content analysis.