Results 71 to 80 of about 1,983 (164)

Sewage treatment and removal of micropollutants in suspended and attached growth systems combining Chlorella sorokiniana and activated sludge

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 2, Page 459-470, February 2026.
Abstract Background Algal‐bacterial consortia represent a promising symbiotic system with high potential for removing major pollutants and micropollutants from municipal wastewater. Four continuously stirred sequential batch reactors (SBRs) were used to investigate the combination of Chlorella sorokiniana and activated sludge for municipal wastewater ...
Asimina Koukoura, Evdokia Gkalipidou, Georgia Gatidou, Eirini Zkeri, Michalis S. Fountoulakis, Athanasios S. Stasinakis   +5 more
wiley   +1 more source

Purification of Liquid Fraction of Digestates from Different Origins—Comparison of Polymeric and Ceramic Ultrafiltration Membranes Used for This Purpose

Membranes
Circular economy, clean technologies, and renewable energy are key to climate protection and modern environmental technology. Recovering water and valuable minerals from the liquid fraction of digestate is in line with this strategy.
Agnieszka Urbanowska
doaj   +1 more source

Acidification of Biogas Residues Stimulates Manganese Uptake in Wheat

Journal of Plant Nutrition and Soil Science, Volume 189, Issue 1, Page 49-58, February 2026.
ABSTRACT Background Efficient application of organic fertilizers contributes to resource‐efficient agriculture. Acidification of liquid manure effectively reduces ammonia (NH3) emissions. However, the effect of acidification on other plant nutrients, such as Mn, often a yield‐limiting nutrient in cereal production, is not well understood.
Jens Torsten Mackens, Sebastian Neumann, Britta Pitann, Thorsten Reinsch, Karl Hermann Mühling   +4 more
wiley   +1 more source

Residual biogas potential from the storage tanks of non-separated digestate and digested liquid fraction

Bioresource Technology, 2011
Biogas plants daily produce enormous volumes of digestate that can be handled in its raw form or after mechanical separation. In Italy, effluents are usually stored within aboveground, uncovered tanks, which make them potential emitters of biogas into the atmosphere.
GIOELLI, Fabrizio Stefano, DINUCCIO, Elio, BALSARI, Paolo   +2 more
openaire   +2 more sources

Agricultural System Resilience of Industrial Hemp: An Exploratory Value Web Analysis in the Swabian Alb

GCB Bioenergy, Volume 18, Issue 2, February 2026.
This study assessed the industrial hemp value web resilience in the Swabian Alb, Southern Germany, where regional implementation remains limited despite hemp's bioeconomy potential. Using an indicator framework and stakeholder interviews, the research found the small, fluctuating cultivation area (e.g., 25 ha in 2024) focuses on hemp seed valorisation;
Lena‐Sophie Loew, Moritz von Cossel
wiley   +1 more source

A Bio-Refinery Concept for N and P Recovery—A Chance for Biogas Plant Development

Energies, 2019
Biogas is an alternative source of energy for fossil fuels. In the process of transforming organic materials into biogas significant amounts of valuable digestate are produced.
Magdalena Szymańska, Ewa Szara, Tomasz Sosulski, Adam Wąs, Gijs W. P. van Pruissen, René L. Cornelissen, Mieczysław Borowik   +6 more
doaj   +1 more source

Application of Cassava-Peels and Palm-Oil-Sludge Digestate on Bean Crop for Sustainable Growth

Covenant Journal of Engineering Technology
This study investigates the potential of using digestate, a byproduct of anaerobic digestion, as organic manure in sustainable agriculture. The digestate was processed using a constructed screw press, separating it into liquid and solid components, with
David Olukanni, Chukwuebuka Ojukwu, Mwigine Kamlenga, Binja Murhunzi   +3 more
doaj  

Digestibility of Liquid Whey by Steers and Cows

Journal of Dairy Science, 1977
Abstract In two reversal experiments to determine digestibility of liquid acid whey by steers and cows, trials within each experiment consisted of an adjustment period followed by 10-day preliminary and 7-day collection periods. In Experiment 1 four Jersey steers received a daily basal diet of 7000g of hay plus 800g of soybean meal.
Glenn F. Rogers, J.G. Welch, K.M. Nilson, A.M. Smith   +3 more
openaire   +1 more source

Digestate Biofertilizers Support Similar or Higher Tomato Yields and Quality Than Mineral Fertilizer in a Subsurface Drip Fertigation System

Frontiers in Sustainable Food Systems, 2019
This study investigated the effects of applying anaerobically digested food waste and dairy manure-derived biofertilizers to processing tomatoes. The biofertilizers were produced from a pilot scale system consisting of coarse solid separation and ...
Tyler J. Barzee, Abdolhossein Edalati, Hamed El-Mashad, Hamed El-Mashad, Daoyuan Wang, Kate Scow, Ruihong Zhang   +6 more
doaj   +1 more source

Valorisation of digestate: Characteristics, products, processes and potential

Chemical Engineering Journal Advances
Anaerobic digestion (AD) plays a critical role in meeting renewable energy needs and managing solid and liquid waste streams, thereby making significant contributions towards sustainability and the circular economy.
Jagdeep Kumar Nayak, Vivek V Ranade
doaj   +1 more source