Anerobic digestion equipment to include: Membrane gasholder, sludge pre treatment, steel covers and digestion mixing. Aerobic digestion solutions to include coarse bubble difusers, aerobic digester covers, thickened aerobic digestion systems and membrane thickening, anammo, PAQ™ process, DigestivorePAD™, BioAlgaNyx™bioengineered technology, sludge handling equipment, DAF, membrane and gravity thickener.