Results 21 to 30 of about 17,916 (213)

Effects of C/N ratio variation in swine biogas slurry on soil dissolved organic matter: Content and fluorescence characteristics

open access: yesEcotoxicology and Environmental Safety, 2021
Nutrient-rich biogas slurry shows favorable prospects for application as an organic fertilizer in farmland. At the same time, due to differing sources and treatment methods, the C/N ratio of biogas slurry varies greatly.
Lilong Yan   +4 more
doaj   +1 more source

Microbial Community Dynamics During Biogas Slurry and Cow Manure Compost

open access: yesJournal of Integrative Agriculture, 2013
This study evaluated the microbial community dynamics and maturation time of two compost systems: biogas slurry compost and cow manure compost, with the aim of evaluating the potential utility of a biogas slurry compost system.
Hong-yan ZHAO   +5 more
doaj   +1 more source

Enhancing Biogas Production of Corn Stover by Biogas Slurry Reflux Based on Microfiltration Membrane Filtration and Biochar Adsorption

open access: yesAgriculture, 2022
Reflux of biogas slurry is an effective way to reduce the discharge of wastewater. In order to improve the utilization efficiency of reflux fluid and reduce ammonia inhibition in an anaerobic digestion (AD) system, biogas slurry was pretreated by ...
Xiaohong Su   +4 more
doaj   +1 more source

The Effects of Biogas Slurry Irrigation on Aggregation and Stability of Fluvo-aquic Soil in Huang-Huai-Hai Plain

open access: yesGuan'gai paishui xuebao, 2022
【Objective】 Irrigation with biogas slurry is not only a way to deal with the wastes produced by livestock industry, but can also improve soil quality and facilitate nutrient availability.
TANG Jiao   +7 more
doaj   +1 more source

Strategies for stable anaerobic digestion of vegetable waste [PDF]

open access: yes, 2012
International trade and the market demand for pre-prepared agricultural produce is not only increasing the total quantity of waste agricultural biomass but also centralising its availability, making it potentially useful for energy production.
Banks, Charles J.   +2 more
core   +1 more source

Long-term temperature measurement: Biogas digesters fermenting slurry

open access: yesJournal of Energy in Southern Africa, 2017
This paper reports the results of the temperature profile of the unheated and unstirred continuous fermenting bio-slurry in a fixed-dome Deenbandhu 2000 model. The digester is a brick-built system of bulk size 6 m3. The digester was monitored for eight months, measuring internal bio-slurry temperature. A K-type nickel chromium-nickel temperature sensor
Nekhubvi, Vhutshilo, Tinarwo, David
openaire   +4 more sources

Performance and mechanism of Carrousel oxidation ditch and water Spinach wetland combined process in treating water hyacinth (Pontederia crassipes) biogas slurry [PDF]

open access: yesArchives of Environmental Protection, 2023
Owing to its high concentrations of nitrogen and phosphorus, the slurry from water hyacinth (Pontederia crassipes) biogas production cannot be discharged directly without further treatment.
Yaqin Yu   +3 more
doaj   +1 more source

A Review on the Fate of Nutrients and Enhancement of Energy Recovery from Rice Straw through Anaerobic Digestion [PDF]

open access: yes, 2020
Open field burning and tilling the rice straw (RS) back into the fields causes environmental threats by contributing to the increased greenhouse gas emissions. Energy and nutrient recovery from RS through anaerobic digestion (AD) is an effective solution
Fritze, Albrecht   +2 more
core   +1 more source

Potential of duckweed for swine wastewater nutrient removal and biomass valorisation through anaerobic co-digestion [PDF]

open access: yes, 2017
Over the last decades, phytodepuration has been considered an efficient technology to treat wastewaters. The present study reports a bench scale depuration assay of swine wastewater using Lemna minor.
Duarte, Elizabeth   +3 more
core   +4 more sources

Occurrence and transformation of veterinary pharmaceuticals and biocides in manure: a literature review [PDF]

open access: yes, 2016
The spread of veterinary medicinal products (VMPs) and biocides via manure onto agriculturally used areas represents a very important emission into the environment for these product groups.
Berkner, Silvia   +5 more
core   +1 more source

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