Results 51 to 60 of about 56,624 (248)

Retention and leaching of nitrate after nitrification of pig manure on variable charge soil (Nitisol) [PDF]

open access: yes, 2008
On the island of Réunion (Indian Ocean), livestock manure is commonly recycled by spreading it on crop fields. However, the area is limited and problems of nitrate pollution of groundwater may arise.
Bochu, Vincent   +4 more
core  

Greenhouse gas emissions from piggery and biogas digesters in the Red River Delta of Vietnam [PDF]

open access: yes, 2020
High demand for pork consumption in Vietnam has led to a shift of pig production systems from smallholder to industrial-scale farms, particularly in the Red River Delta.
Arango, Jacobo   +6 more
core  

Iron(III)‐loaded cation exchange resin: A dual approach for aqueous H2S removal and biogas desulphurization

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Left: Desulphurization method application. Right: Novel desulphurization method. Abstract The presence of hydrogen sulphide (H2S) in biogas poses significant environmental and operational challenges due to its corrosive and toxic properties. Thus, this study aimed to develop a dual‐function desulphurization system using a cation exchange resin (CIER ...
Matheus Damásio Thrun   +6 more
wiley   +1 more source

Manure application increases soil doxycycline and zinc levels and resistance gene abundance

open access: yesEcotoxicology and Environmental Safety
Doxycycline (DOX) and zinc (Zn), are frequently detected in livestock manure. Untreated excrement carries a sizable load of DOX and Zn into the soil, exacerbating agricultural nonpoint source pollution.
Jian Zhao   +8 more
doaj   +1 more source

By‐product of heparin extraction as a sustainable alternative to enhance the use of nitrogen in agriculture

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract This study evaluates the potential of a new organic fertilizer derived from porcine intestinal mucosa (designated BHE), a by‐product of the heparin extraction process, as a sustainable nitrogen (N) source for agriculture. The work was conducted in two stages: (i) chemical and spectroscopic characterization of BHE compared with poultry litter ...
Aline Zanquetti   +3 more
wiley   +1 more source

Livestock farmers' attitude towards manure separation technology as future strategy [PDF]

open access: yes, 2010
In this paper, an ordered probit model is used to assess the factors that affect the probability of livestock farmers having plans to adopt manure separation technology in the future.
Gebrezgabher, S.A.   +3 more
core   +1 more source

Experimental study on gas production optimization of pig manure and wheat straw under different pig manure levels

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract In order to explore the optimal ratio of pig manure and wheat straw mixed fermentation process, the experiment controlled the temperature of the fermentation control fermentation process to 35 °C, the total mass of the fermentation liquid was 700 g, and the total soild (TS) was 8%.
Yajun Chu   +8 more
openaire   +1 more source

Ranking of Bioresources for Biogas Production

open access: yesEnvironmental and Climate Technologies, 2020
Production of biogas using bioresources of agricultural origin plays an important role in Europe’s energy transition to sustainability and to a climate-neutral economy.
Bumbiere Ketija   +5 more
doaj   +1 more source

Contribution of Manure-Spreading Operations to Bioaerosols and Antibiotic Resistance Genes’ Emission

open access: yesMicroorganisms, 2023
Manure spreading from farm animals can release antibiotic-resistant bacteria (ARB) carrying antimicrobial resistance genes (ARGs) into the air, posing a potential threat to human and animal health due to the intensive use of antibiotics in the livestock ...
Mahsa Baghdadi   +9 more
doaj   +1 more source

Diversity and distribution of bacterial phytases

open access: yesiMetaOmics, EarlyView.
Phytases: The stepwise dephosphorylation of phytate is catalyzed by phytases, a group of enzymes found mainly among bacteria and plants. Bacterial potential: We identified an unexpectedly widespread and previously underappreciated bacterial potential for phytate dephosphorylation, suggesting that microbial phytases play crucial roles in the ...
Michael Weber   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy