Pathogenic bacteria and mineral N in soils following the land spreading of biogas digestates and fresh manure

Goberna, Marta; Podmirseg, Sabine Marie; Waldhuber, Sebastian; Knapp, Brigitte A.; Garcı́a, Carlos; Insam, Heribert

doi:10.1016/j.apsoil.2011.07.007

Cited by 115 publications

(76 citation statements)

References 40 publications

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“…However, the effects on single treatment and handling steps differentiate (e.g., manure handling, manure storage, field spreading) and are strongly dependent on the design of Derived from results in greenhouse or growth chamber pot experiments (Goberna et al 2011;Sänger et al 2010Sänger et al , 2011Walsh et al 2012a) or from theoretical approaches (Ørtenblad 2002;Dalgaard et al 2004), it is often hypothesized that the nitrate leaching risk after field spreading of digestates is lower than after spreading of the undigested manure. The statements are deducted from the assumed better match of N supply and crop N demand, as a consequence of the higher ammonium-N/ total N share in digestates compared to the input feedstocks.…”

Section: Effects Of Anaerobic Digestion On Digestate Organic Matter Cmentioning

confidence: 99%

Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Möller¹

2015

Agron. Sustain. Dev.

214

131

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Sustainability in agriculture means the inclusion of several aspects, as sustainable agriculture systems must not compromise not only their ability to satisfy future needs by undermining soil fertility and the natural resource base but also sustainable agriculture has had to address a range of other issues including energy use, efficient use, and recycling of nutrients, the effects on adjacent ecosystems including the effects on water bodies and climate change. Organic manures are an important factor to keep the soil fertility level of soils. However, their management is often related to large emissions. In this context, anaerobic digestion is-similarly to composting-a treatment option for stabilization of biogenic wastes leading to a residual product called digestates, enabling the sanitation and the recycling and use as fertilizer. It is also a means to obtain energy from wastes as well as from dedicated energy crops. Therefore, anaerobic digestion potentially addresses several aspects of agricultural sustainability. This review discusses the current state of knowledge on the effects of anaerobic digestion on organic compounds in digestates and the most important processes influencing N emissions in the field, as well as the possible longterm effects on soil microbial biomass and soil fertility. The main findings are that (1) the direct effects of anaerobic digestion on long-term sustainability in terms of soil fertility and environmental impact at the field level are of minor relevance. (2) The most relevant effects of anaerobic digestion on soil fertility as well as on N emissions will be expected from indirect effects related to cropping system changes such as changes in crop rotation, crop acreage, cover cropping, and total amounts of organic manures including digestates. Furthermore, (3) the remaining organic fraction after anaerobic digestion is much more recalcitrant than the input feedstocks leading to a stabilization of the organic matter and a lower organic matter degradation rate after field application, enabling a similar reproduction of the soil organic matter as obtained by direct application of the feedstock or by composting of the feedstock. (4) Regarding emissions, the main direct effect of anaerobic digestion on a farm level is the influence on gaseous emissions during manure or digestate treatment and handling, whereas the direct effects of anaerobic digestion on a field level on emissions (NH 3 − and N 2 O − emissions, NO 3 -leaching) are negligible or at least ambiguous. (5) The main direct effects of anaerobic digestion on the field level are short-term effects on soil microbial activity and changes in the soil microbial community. Therefore, in terms of the effects on agricultural sustainability, potential cropping system-based changes induced by introduction of biogas plants are probably much more relevant for the overall performance and sustainability of the cropping system than the direct effects triggered by application of digestates in comparison to the undigested feedstock...

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Section: Effects Of Anaerobic Digestion On Digestate Organic Matter Cmentioning

confidence: 99%

Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Möller¹

2015

Agron. Sustain. Dev.

214

131

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“…The presence of other phytotoxic substances, such as volatile fatty acids (i.e., acetic, propionic and butyric acids), as well as the high content of soluble salts may contribute to the slurry phytotoxicity [125]. Furthermore, Goberna et al [126] found that amending soils with slurry resulted in greater nitrate losses during the first 30 d of a 100 d incubation period in 20 cm-depth lysimeters. In fact, around 23 and 45% of the total N contained in the soil (natural + added) was lost from soils amended with cattle manure and anaerobic slurry, respectively.…”

Section: Influence Of Anaerobic Digested Slurry On the Soil Microbiotamentioning

confidence: 99%

Animal Manures: Recycling and Management Technologies

Gómez-Brandòn¹,

Domínguez²,

Insam³

2013

Biomass Now - Cultivation and Utilization

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“…Lapen et al [14], and Gottschall et al [15] monitored tile-and ground-water quality for bacteria (Escherichia coli, enterococci, Clostridium perfringens) after land application of dewatered biosolids (using both spreading and surface injection application methods), and they found that there were no significant differences between using different methods of spreading biosolids, also they measured the concentration of the E. coli contamination in ground water.…”

Section: Association Of Biosolids and Manure Application With Microbimentioning

confidence: 99%

“…They observed microbial concentration with distances and sampling heights for different weather conditions (wind velocity and direction, relative humidity and temperature) to develop empirical fate and transport models. These studies have generally focused on estimating risk of microbial infection from one medium only [14,[100][101][102]108]. However, different environmental compartments (i.e.…”

Section: Risk Assessmentmentioning

confidence: 99%

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Effects of Biosolids and Manure Application on Microbial Water Quality in Rural Areas in the US

Oun

Kumar

Harrigan

et al. 2014

Water

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Most of the waterborne disease outbreaks observed in North America are associated with rural drinking water systems. The majority of the reported waterborne outbreaks are related to microbial agents (parasites, bacteria and viruses). Rural areas are characterized by high livestock density and lack of advanced treatment systems for animal and human waste, and wastewater. Animal waste from livestock production facilities is often applied to land without prior treatment. Biosolids (treated municipal wastewater sludge) from large wastewater facilities in urban areas are often transported and applied to land in rural areas. This situation introduces a potential for risk of human exposure to waterborne contaminants such as human and zoonotic pathogens originating from manure, biosolids, and leaking septic systems. This paper focuses on waterborne outbreaks and sources of microbial pollution in rural areas in the US, characterization of the microbial load of biosolids and manure, association of biosolid and manure application with microbial contamination of surface and groundwater, risk assessment and best management practice for biosolids and manure application to protect water quality. Gaps in knowledge are identified, and recommendations to improve the water quality in the rural areas are discussed. OPEN ACCESS

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Pathogenic bacteria and mineral N in soils following the land spreading of biogas digestates and fresh manure

Cited by 115 publications

References 40 publications

Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Animal Manures: Recycling and Management Technologies

Effects of Biosolids and Manure Application on Microbial Water Quality in Rural Areas in the US

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