Hanna Waliszewska

ORCID: 0000-0001-5734-4312
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Biofuel production and bioconversion
  • Anaerobic Digestion and Biogas Production
  • Lignin and Wood Chemistry
  • Bioenergy crop production and management
  • Phosphorus and nutrient management
  • Advanced Cellulose Research Studies
  • Botany and Plant Ecology Studies
  • Waste Management and Environmental Impact
  • Adsorption, diffusion, and thermodynamic properties of materials
  • Renewable energy and sustainable power systems
  • Enzyme-mediated dye degradation
  • Food Waste Reduction and Sustainability
  • Phytochemicals and Antioxidant Activities
  • Nuts composition and effects
  • Agricultural Engineering and Mechanization
  • Polysaccharides and Plant Cell Walls
  • Constructed Wetlands for Wastewater Treatment
  • Wastewater Treatment and Nitrogen Removal
  • Crop Yield and Soil Fertility
  • Forest Biomass Utilization and Management

University of Life Sciences in Poznań
2016-2024

National Centre for Research and Development
2024

University of Life Sciences in Lublin
2015-2021

Łukasiewicz Research Network - Wood Technology Institute
2015-2019

Abstract The results of anaerobic digestion (AD) buttermilk (BM) and cheese whey (CW) with a digested sewage sludge as inoculum is described. substrate/inoculum mixtures were prepared using 10% 15% whey. essential parameters the materials described, including: total solids (TS), volatile (VS), pH, conductivity, C/N ratio (the quantitative organic carbon (C) to nitrogen (N)), alkalinity, chemical oxygen demand (COD). potential directions biodegradation waste types, used in this study, are...

10.1515/eces-2016-0007 article EN Ecological Chemistry and Engineering S 2016-03-01

The aim of the study was to determine quantitative and qualitative changes taking place in biomass components actively participating methane fermentation, i.e., carbohydrates, as a result chemical pretreatment. Analyses were conducted on agricultural waste (corn stover, also called corn straw, corncobs) materials most commonly used well poplar wood, material relatively rarely biogas production. Pretreatment with increasing efficiency fermentation carried out use acid alkaline solutions...

10.3390/en15010254 article EN cc-by Energies 2021-12-31

Methane fermentation, which is one of the key processes in biogas production, plays an important role conversion biomass to energy. During this process, changes occur chemical composition organic feedstocks, including grasses. The assessment these crucial for efficiency and productivity production. material study comprised fully mature grass blades with leaves inflorescences was collected from extensively used meadows pastures, as well cultivated set-aside areas Wielkopolskie Voivodeship,...

10.3390/en17164100 article EN cc-by Energies 2024-08-18

The purpose of the paper is designation changes in structure cellulose after methane fermentation process Miscanthus and Sorghum harvested during growing season afterwards. percentage before were studied. Investigations into conducted by SEC, FT-IR XRD methods. average for varieties was higher lower. As a result fermentation, both investigated species two growth seasons degree polymerisation plants lower most feedstock. process, polymerization increased each However, crystallinity remained...

10.1007/s10570-017-1622-1 article EN cc-by Cellulose 2018-01-08

The article describes a pilot study on wastewater treatment plant operating biogas (2.793 MW).The authors of the experiment used organic waste material, including: chicken fat with feathers (FF), molasses (M), glycerol (GL), raw sewage sludge (SS) and digested as an inoculum.The parameters were compared, e.g.changes in concentrations ammonium nitrogen (N-NH4+), alkalinities, chemical oxygen demand (COD) light metal ions.Potential biodegradation pathways for experiments also proposed.The...

10.30638/eemj.2019.192 article EN Environmental Engineering and Management Journal 2019-01-01

The aim of the research is to identify changes which occur in lignin from miscanthus and sorghum, one main biomass components, as a result an anaerobic digestion (AD) process. percentage content structure before after fermentation process were analysed using harvested two growing periods—before vegetation. It was shown that plants at different developmental stages differ content. During plant growth, also changes—the syringyl-to-guaiacyl ratio (S/G) increases, whereas aliphatic aromatic...

10.3390/polym11050835 article EN Polymers 2019-05-08

Changes in chemical composition and structure of corncob lignocellulosic biomass were investigated relative to pretreatment anaerobic digestion. The involved 1% 3% sodium hydroxide, 7% sulphuric acid, as well medium high temperature extrusion (in 110 °C the range from 140 160 °C). components content was studied using a gravimetric method, whereas relations between carbohydrate lignin participation Fourier transform infrared spectroscopy. It determined that treatment, both acidic alkaline,...

10.15376/biores.14.4.8082-8099 article EN publisher-specific-oa BioResources 2019-08-21

In the described study, relationships between percentage and structure of selected lignocellulosic components efficiency their anaerobic digestion quality produced biogas were analyzed. This research included various raw materials. The tests carried out according to DIN standard 38 414-8 (1985) VDI 4630 (2016). Multiple TAPPI standards Seifert method used determine chemical composition lignocellulose Lignin analysis was performed using Fourier transform infrared spectroscopy. Wide-angle...

10.15376/biores.16.4.7086-7100 article EN publisher-specific-oa BioResources 2021-09-07

The increase in energy demand creates a need to look for new ways of production, as fossil fuel resources are limited and nuclear is not always well perceived, thus directions production being sought for. One them agricultural biogas obtained the process methane fermentation, by-product which digested pulp (digestate), having fertilizing potential, often underestimated. purpose following study determine fertilizer value coming from Polish plant. results digestate chemical analyzes available...

10.1109/icgea.2018.8356293 article EN 2018-03-01

One of the essential requirements in running a biogas plant is proper management by-product resulting from production biogas, i.e. post-fermentation mass.One possibilities for treatment fixed fraction its combustion.In this study, basic physicochemical properties post-fermented pulp obtained maize waste are determined terms their combustion potential.Parameters such as elemental analysis, moisture content, volatile matter ash heat and calorific value were raw material without pre--treatment,...

10.12841/wood.1644-3985.289.01 article EN Drewno Prace Naukowe Doniesienia Komunikaty = Wood Research Papers Reports Announcements 2019-12-31
Coming Soon ...