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RESEARCH PRODUCT
Anaerobic Degradation of Environmentally Hazardous Aquatic Plant Pistia stratiotes and Soluble Cu(II) Detoxification by Methanogenic Granular Microbial Preparation
Agnieszka Dołhańczuk-śródkaVira HovorukhaVolodymyr TrilisOleksandr TashyrevOleksandr SavitskyAntonina KalinichenkoOlesia HavryliukDaniel Janeckisubject
TechnologyControl and Optimization020209 energyPistia stratiotes L. plantsEnergy Engineering and Power TechnologyBiomass02 engineering and technology010501 environmental sciences<i>Pistia stratiotes</i> L. plantsbiomethanecopper bioremoval01 natural sciencesanaerobic degradation of hazardous plantsBioremediationBiogasbioremediationBioenergyAquatic plantenvironmental biotechnology0202 electrical engineering electronic engineering information engineeringPistiaStratiotesElectrical and Electronic EngineeringEngineering (miscellaneous)0105 earth and related environmental sciencesbiologyRenewable Energy Sustainability and the EnvironmentChemistryTAquatic ecosystemfood and beveragesbiology.organism_classificationbiomethane; <i>Pistia stratiotes</i> L. plants; copper bioremoval; anaerobic degradation of hazardous plants; environmental biotechnology; bioremediation; biomethane productionEnvironmental chemistrybiomethane productionEnergy (miscellaneous)description
The aquatic plant Pistia stratiotes L. is environmentally hazardous and requires effective methods for its utilization. The harmfulness of these plants is determined by their excessive growth in water bodies and degradation of local aquatic ecosystems. Mechanical removal of these plants is widespread but requires fairly resource-intensive technology. However, these aquatic plants are polymer-containing substrates and have a great potential for conversion into bioenergy. The aim of the work was to determine the main patterns of Pistia stratiotes L. degradation via granular microbial preparation (GMP) to obtain biomethane gas while simultaneously detoxifying toxic copper compounds. The composition of the gas phase was determined via gas chromatography. The pH and redox potential parameters were determined potentiometrically, and Cu(II) concentration photocolorimetrically. Applying the preparation, high efficiency of biomethane fermentation of aquatic plants and Cu(II) detoxification were achieved. Biomethane yield reached 68.0 ± 11.1 L/kg VS of Pistia stratiotes L. biomass. The plants’ weight was decreased by 9 times. The Cu(II) was completely removed after 3 and 10 days of fermentation from initial concentrations of 100 ppm and 200 ppm, respectively. The result confirms the possibility of using the GMP to obtain biomethane from environmentally hazardous substrates and detoxify copper-contaminated fluids.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-06-01 | Energies |