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Reduction of metals, phosphorous and nitrogen in chemico-physical waste water process by water plants (Niagara)

Date: 6.5.1997-31.12.1998
Code: 8772
Department: Åbo Akademi University / Faculty of Chemical Engineering (KTF), Laboratory of Inorganic Chemistry
Address: Biskopsg. 8, FIN-20500 Åbo
Phone +358-2-2154 433
Fax +358-2-2154 962
E-mail enordstr@abo.fi
Project leader: FD Egon Nordström, t.f.överassistent (6.5.1997-31.12.1998)
Type of research: 0 (0=Within duty, 1=Ordered research, 2=Co-operation)
- basic research 25 %
- applied research 25 %
- developmental work 50 %
ŇA internal financing: FIM 25000
Man months: Totally: 8 months
Partners: 1.Velkua kommun 2.Sydvästra Finlands vattenskyddsdistrikt 3.Kårkulla samkommun 4.Miljöministeriet
Contacts: 1.Stensunds waste water aquaculture 2.Kaldnes miljöteknologi 3.Center for coastal research and development 4.EU / joint research centre environmental institute
Keywords: avloppsvatten, biologiska dammar, avfall : behandling, jätevesi, lammikointi, jätteet : käsittely, kväve, fosfor, reducering, AV - reningsprocesser, vattenväxter, nitrogen, phosphorous, reduction, waste water treatment, aqua culture,

The intention is to improve nitrogenreduction and to eliminate and alanyse toxic substances in waste water with a process containing plants and micro organisms.To create new jobs, to educate and to strenghten network with industrial life.To make waste water treatment popular via "tourism".METHODS: Introduce water hyacints to conventional treatment.At sedimentation of fine kolloidals the plants act as adsorbers.The fine particles are enriched at the plant roots.Regular water chemistry analysis are taken by authorities.Biomass analysis of elements are done with ICP_MS.Toxic elements of organic origin are analysed by HPLC.Some bacteriologic analysis must be performed to secure that the biomass can be recycled.

Publication(s)

22.5.1997 / 9.6.1997