Consequently, a combination of both bioenergy production and wastewater treatment would reduce the downstream cost of treating primary effluent wastewater.
Primary effluent wastewater was passed through the emergent macrophytes P. australis; floating hydrophytes A. filiculoides, P. stratiotes, L. minor; edible plant L. sativa and the control.
The best results were obtained in the last period with primary effluent from real urban wastewater.
To this aim, MFC were implemented in a pilot plant based on two HSSF CW, one fed with primary settled wastewater (Settler line) and the other fed with the effluent of a hydrolytic up-flow sludge blanket reactor (HUSB line).
The eubacterial and archaeal community was profiled on wetland gravel, MFC electrodes and primary treated wastewater by means of 16S rRNA gene-based 454-pyrosequencing and qPCR of 16S rRNA and mcrA genes.
In this work the effects of temperature, day/night irradiation and bacterial competition were studied on growth and nutrient removal of Chlorella protothecoides cultivated in real and unsterilized primary urban wastewater.
The irrigation treatments were primary-treated wastewater and secondary-treated wastewater, in addition to tap water as control.
Many solids may still remain in primary-treated wastewater, and viruses, parasites, and bacteria within those solids are protected from disinfection, he adds.
Six pilot-scale subsurface flow treatment wetlands loaded with primary treated municipal wastewater were monitored over one year for classical wastewater parameters and a set of emerging organic compounds (EOCs) serving as process indicators for biodegradation: caffeine, ibuprofen, naproxen, benzotriazole, diclofenac, acesulfame, and carbamazepine.
