title: Macroalgae culture to treat anaerobic digestion piggery effluent (ADPE).
abstract: Environmental consequences of high productivity piggeries are significant and can result in negative environmental impacts, hence bioremediation techniques (in particular using macroalgae) are therefore of great interest. Here, the growth potential of several freshwater macroalgae in anaerobic digestion piggery effluent (ADPE), their nutrient removal rates and biochemical composition of the biomass were investigated under outdoor climatic conditions. A consortium of two macroalgae, Rhizoclonium sp. and Ulothrix sp. was isolated and could efficiently grow in the ADPE. Maximum ammonium removal rate (30.6±6.50mg NH4+-NL-1d-1) was achieved at ADPE concentration equivalent to 248mgNH4+-NL-1. Mean biomass productivity of 31.1±1.14g ash-free dry weight (AFDW) m-2d-1was achieved. Total carbohydrate and protein contents ranged between 42.8-54.8 and 43.4-45.0% AFDW, respectively, while total lipid content was very low. The study indicates the potential use of this macroalgal consortium for treating ADPE as well as source of animal feed production.
authors.affiliation: Algae R&D Centre, School of Veterinary and Life Sciences, Murdoch University, Western Australia 6150, Australia; Department of Biotechnology, Ebonyi State University, Abakaliki, Ebonyi State, Nigeria.
authors.forename: Emeka Godfrey
authors.initials: EG
authors.lastname: Nwoba
authors.affiliation: Algae R&D Centre, School of Veterinary and Life Sciences, Murdoch University, Western Australia 6150, Australia. Electronic address: n.moheimani@murdoch.edu.au.
authors.forename: Navid Reza
authors.initials: NR
authors.lastname: Moheimani
authors.affiliation: Department of Biotechnology, Ebonyi State University, Abakaliki, Ebonyi State, Nigeria.
authors.forename: Benjamin Ewa
authors.initials: BE
authors.lastname: Ubi
authors.affiliation: Department of Microbiology, University of Nigeria, Nsukka, Enugu State, Nigeria.
authors.forename: James Chukwuma
authors.initials: JC
authors.lastname: Ogbonna
authors.affiliation: Algae R&D Centre, School of Veterinary and Life Sciences, Murdoch University, Western Australia 6150, Australia.
authors.forename: Ashiwin
authors.initials: A
authors.lastname: Vadiveloo
authors.affiliation: School of Veterinary and Life Sciences, Murdoch University, Western Australia 6150, Australia.
authors.forename: John R
authors.initials: JR
authors.lastname: Pluske
authors.affiliation: Western Australian Herbarium, Science Division, Department of Parks and Wildlife, Locked Bag 104, Bentley Delivery Centre, Western Australia 6983, Australia.
authors.forename: John Marinus
authors.initials: JM
authors.lastname: Huisman
mesh_terms: D000822:Animal Husbandry / Q000379:methods; D000818:Animals; D001673:Biodegradation, Environmental; D018533:Biomass; D000460:Chlorophyta / Q000378:metabolism; D012624:Seaweed / Q000254:growth & development* / Q000378:metabolism; D013552:Swine; D014865:Waste Disposal, Fluid / Q000379:methods*
keywords: Bioenergy; Phytoremediation; Productivity; Rhizoclonium; Ulothrix