4.8 Article

Response characteristics of denitrifying bacteria and denitrifying functional genes to woody peat during pig manure composting

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Agricultural Engineering

Biochar enhances partial denitrification/anammox by sustaining high rates of nitrate to nitrite reduction

Qian Li et al.

Summary: This study examined the short-term effects of biochar on the partial-denitrification anammox (PD/A) process. The results showed that biochar increased nitrate reduction rates and enhanced the removal of total nitrogen (TN) in the system. Analysis indicated that biochar accelerated electron transfer and modulated the microbial community, leading to improved TN removal.

BIORESOURCE TECHNOLOGY (2022)

Article Agricultural Engineering

Enhanced thermophilic denitrification performance and potential microbial mechanism in denitrifying granular sludge system

Shuohui Shi et al.

Summary: The study suggests that increasing temperature has a positive impact on thermophilic biological nitrogen removal, leading to an increase in COD and nitrate removal rates, as well as succession of key functional bacterial communities at different temperatures. Enriched thermophilic bacteria in the thermophilic denitrifying granular sludge system can effectively remove nitrate.

BIORESOURCE TECHNOLOGY (2022)

Article Agricultural Engineering

Red mud conserved compost nitrogen by enhancing nitrogen fixation and inhibiting denitrification revealed via metagenomic analysis

Yite Huang et al.

Summary: The study found that adding red mud can increase the retention of NH4+-N and NO3--N in composting, improve compost quality by inhibiting denitrification and enhancing nitrogen fixation. Adding red mud reduces nitrogen loss and enhances compost quality.

BIORESOURCE TECHNOLOGY (2022)

Article Environmental Sciences

Functionality of denitrification with minerals composition, process conditions and microbial community

Md S. Mozumder et al.

Summary: Mineral concentration, PO43--to-NO3--N ratio, and optimal temperature range play important roles in efficient denitrification. Pseudomonas and Halomonas species are predominant in the mixed culture system, showing different advantages under different mineral concentrations.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (2022)

Article Agriculture, Multidisciplinary

Increasing yields while reducing soil nutrient accumulation by straw strip mulching in the dryland wheat (Triticum aestivum L.) cropping system of Northwest China

Yuwei Chai et al.

Summary: Straw strip mulching (SM) is an effective technique that can increase crop yields, biomass, and nutrient uptake while reducing residual nitrogen and leaching in rainfed agroecosystems. It has the potential to save fertilizer costs, especially for phosphorus. SM is a suitable mulching method to promote in semiarid regions.

AGRICULTURE ECOSYSTEMS & ENVIRONMENT (2022)

Article Agricultural Engineering

Insights into the associations of copper and zinc with nitrogen metabolism during manure composting with shrimp shell powder

Wenya Zhao et al.

Summary: The application of shrimp shell powder inhibits nitrification and denitrification, and reduces the abundances of metal resistance genes and nitrogen functional genes. The study also reveals complex relationships between heavy metals and nitrogen.

BIORESOURCE TECHNOLOGY (2022)

Article Environmental Sciences

Microbial community composition and glyphosate degraders of two soils under the influence of temperature, total organic carbon and pH

Angelica M. Muskus et al.

Summary: Temperature, soil organic carbon (TOC), and pH have significant effects on soil microbial communities and the degradation process of glyphosate.

ENVIRONMENTAL POLLUTION (2022)

Article Green & Sustainable Science & Technology

The co-addition of biochar and manganese ore promotes nitrous oxide reduction but favors methane emission in sewage sludge composting

Shunxi Zhou et al.

Summary: This study investigates the effects of biochar and manganese ore on N2O and CH4 emissions during sewage sludge composting. The results show that the co-addition of biochar and manganese ore can effectively reduce global warming potential and total nitrogen loss. The main mechanism for reducing N2O emissions is identified as the inhibition of N2O generation during nitrification and denitrification processes. Meanwhile, the reduced CH4 emissions are achieved by inhibiting CH4 generation and promoting CH4 consumption.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Green & Sustainable Science & Technology

Integrated evaluation for advanced removal of nitrate and phosphorus in novel PHBV/ZVI-based biofilters: Insight into functional genes and key enzymes

Lixia Jia et al.

Summary: This study proposes the use of PHBV/ZVI composites as functional fillers in biofilters for advanced wastewater treatment, aiming to effectively control nitrogen and phosphorus simultaneously, and satisfy the strict requirement of the ecological health of receiving waters. The composites showed high-rate treatment performance with high removal efficiencies of nitrate and phosphorus, as well as reduced greenhouse gas emissions. Gene analysis revealed the mechanisms of iron and the pathway of phosphorus removal in the composites.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Environmental Sciences

Mechanism associated with the positive effect of nanocellulose on nitrogen retention in a manure

Xiaoxia Dai et al.

Summary: This study investigated the effects of adding nanocellulose on nitrogen conversion and related microorganisms during composting. The results showed that nanocellulose effectively inhibited nitrogen losses and promoted nitrogen fixation, leading to improved nitrogen retention.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2022)

Article Engineering, Environmental

Metagenomic analysis of denitrifying phosphorus removal in SBR system: Comparison of nitrate and nitrite as electron acceptors

Rongrong Hou et al.

Summary: This study compares the effects of different electron acceptors on denitrifying phosphorus removal (DPR) technology and finds that Nitrite-DPR has higher nitrogen and phosphorus removal efficiency and improved sludge settling ability compared to Nitrate-DPR. Metagenomic analysis reveals differences in functional bacterial groups, further demonstrating the superior performance of Nitrite-DPR. Additionally, an increase in functional genes related to environmental stress resistance and tightly bound extracellular polymeric substances (TB-EPS) protein is observed in Nitrite-DPR.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Green & Sustainable Science & Technology

An assessment of composting conditions, humic matters formation and product maturity in response to different additives: A meta-analysis

Yousif Abdelrahman Yousif Abdellah et al.

Summary: Based on the analysis of sediment composition and microbial community structure, this study found that the sediment in artificial wetlands has higher organic matter and nutrient content compared to natural wetlands, indicating that artificial wetlands are an effective wastewater treatment technology.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Green & Sustainable Science & Technology

Effects of oxygen levels on maturity, humification, and odor emissions during chicken manure composting

Ruonan Ma et al.

Summary: The quality of compost greatly depends on its maturity and humification, and the emissions of odors during composting can lead to severe air pollution and nutrient losses. This study investigated the effects of different aeration conditions on maturity, humification, and odor emissions during chicken manure composting. The results showed that an aeration rate of 0.1 m(3) h(-1) was the minimum requirement for achieving maturity and humification of chicken manure. The aerobic and oxygen-rich treatments had higher germination index and humification indexes compared to the microaerobic treatments. Reducing temperature, C/N, and NH4+-N can improve compost maturity and reduce odor emissions by regulating key bacterial communities.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Environmental Sciences

Metagenomics analysis unraveled the influence of sulfate radical-mediated compost nitrogen transformation process

Susu Wang et al.

Summary: This study investigates the influence of sulfate radical (SO4.) on nitrogen biotransformation during composting and compares the differences in physicochemical parameters and metagenomics analysis. The results reveal the effect of SO4. on nitrogen cycling and retention, and provide insights into the mechanisms of nitrification and denitrification during composting.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2022)

Article Environmental Sciences

Composting with biochar or woody peat addition reduces phosphorus bioavailability

Yuquan Wei et al.

Summary: This study investigated the effects of biochar and woody peat on phosphorus transformation during composting, indicating that the addition of woody peat may benefit the humification process while both additives limited phosphorus availability. Biochar increased the proportion of Pi, while woody peat decreased the conversion from Po to Pi.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Soil Science

Variation in abundance, diversity, and composition of nirK and nirS containing denitrifying bacterial communities in a red paddy soil as affected by combined organic-chemical fertilization

Xun Xiao et al.

Summary: The long-term effects of different combined organic-chemical fertilizer regimes on denitrifying communities were investigated in this study. The results showed that the application of combined organic-chemical fertilizers significantly increased the abundance of nirK and nirS genes, with a more pronounced effect in the GM treatment. In addition, changes in soil pH and organic matter were identified as key factors influencing the abundance and composition of the denitrifying communities.

APPLIED SOIL ECOLOGY (2021)

Article Agricultural Engineering

Insight into the effects of regulating denitrification on composting: Strategies to simultaneously reduce environmental pollution risk and promote aromatic humic substance formation

Mingzi Shi et al.

Summary: This study investigated denitrification regulation methods during chicken manure composting, showing that these methods effectively reduced nitrate nitrogen content and increased humic substance content. Microbiological analysis revealed that these methods also decreased denitrifying functional microbes with aroma degradation capability.

BIORESOURCE TECHNOLOGY (2021)

Article Agricultural Engineering

Regulating bacterial dynamics by lime addition to enhance kitchen waste composting

Zhicheng Xu et al.

Summary: This study found that lime addition during kitchen waste composting can promote bacterial growth and activity, improving composting effectiveness. The addition of lime at different stages has a significant impact on the composition and function of bacterial communities, thereby affecting gas emissions and nutrient transformations during composting.

BIORESOURCE TECHNOLOGY (2021)

Article Agricultural Engineering

Insights into the beneficial effects of woody peat for reducing abundances of antibiotic resistance genes during composting

Jun Xie et al.

Summary: The study found that adding 15% woody peat during composting can effectively decrease the bioavailable Cu content and weaken horizontal gene transfer, which helps control the spread of antibiotic resistance genes.

BIORESOURCE TECHNOLOGY (2021)

Article Soil Science

A few key nirK- and nosZ-denitrifier taxa play a dominant role in moisture-enhanced N2O emissions in acidic paddy soil

Hongling Qin et al.

Summary: This study showed that denitrification may play a more dominant role in N2O emissions than nitrification in acidic paddy soil under sufficient NH4NO3 inputs. The effects of soil moisture on N2O emissions could be attributed to a few key nirK- and nosZ-denitrifier taxa, through shifts in community composition and synergistic interactions of network structures between them.

GEODERMA (2021)

Article Engineering, Environmental

Black soldier fly reared on pig manure: Bioconversion efficiencies, nutrients in the residual material, greenhouse gas and ammonia emissions

Alejandro Parodi et al.

Summary: The study found that with the presence of black soldier fly larvae, more carbon dioxide and ammonia-nitrogen were emitted compared to when the larvae were absent. Methane emissions, the main contributor to greenhouse gases, were produced at the same levels in both treatments, indicating the significant role of manure microbial methane emissions. The uptake of nutrients by the larvae and the higher carbon dioxide and ammonia emissions significantly altered the nutrient composition of the residual material relative to fresh manure.

WASTE MANAGEMENT (2021)

Article Agriculture, Multidisciplinary

Biochar-amended poultry mortality composting to increase compost temperatures, reduce ammonia emissions, and decrease leachate?s chemical oxygen demand

Yuchuan Wang et al.

Summary: The study demonstrated that adding biochar to poultry mortality composting can increase temperature, reduce ammonia emissions, decrease organic content of leachate, and enhance nutrient content. A minimum of 5% biochar addition is recommended to improve the poultry mortality composting process.

AGRICULTURE ECOSYSTEMS & ENVIRONMENT (2021)

Article Agriculture, Multidisciplinary

Woody peat addition increases soil organic matter but its mineralization is affected by soil clay in the four degenerated erodible soils

Wei Fu et al.

Summary: Soil erosion leads to a reduction in soil organic matter and degradation of soil structure in agricultural systems, posing threats to agricultural ecological environments and global sustainable agriculture. The addition of woody peat has been found to improve land productivity in degraded soils, particularly in red soil, by enhancing crop growth and increasing soil organic matter content. Further research is needed to explore the impact of woody peat addition on soil environments, especially in coarse-textured soils.

AGRICULTURE ECOSYSTEMS & ENVIRONMENT (2021)

Article Soil Science

Yak excreta-induced changes in soil microbial communities increased the denitrification rate of marsh soil under warming conditions

Xin Fang et al.

Summary: The addition of yak excreta significantly increased the denitrification rate of marsh soil under different temperatures, but had no obvious effect on nitrate reductase and nitrite reductase as temperature increased. The diversity of the denitrifier community was reduced by excreta addition, with nirK being more sensitive to these additions and temperature changes.

APPLIED SOIL ECOLOGY (2021)

Article Biodiversity Conservation

Nitrosospira cluster 3 lineage of AOB and nirK of Rhizobiales respectively dominated N2O emissions from nitrification and denitrification in organic and chemical N fertilizer treated soils

Manman Chen et al.

Summary: Organic fertilizer application increased N2O emissions from nitrification, dominated by the Nitrosospira cluster 3 lineage of AOB, while chemical N fertilizer stimulated N2O production from denitrification, dominated by the nirK lineage of Rhizobiales. The study highlights the different effects of organic and chemical fertilizers on N2O microbial emission pathways in agricultural soils.

ECOLOGICAL INDICATORS (2021)

Article Green & Sustainable Science & Technology

Pretreated rice straw improves the biogas production and heavy metals passivation of pig manure containing copper and zinc

Shuyu Xiang et al.

Summary: The presence of heavy metals in pig manure can inhibit biogas production and increase environmental pollution risk, while rice straw serves as a good co-digestion substrate and natural adsorbent. The study found that heavy metals were transformed into solid phase through adsorption during anaerobic digestion, with microwave and ultrasonic treatment improving adsorption properties, while alkaline treatment favored anaerobic digestion.

JOURNAL OF CLEANER PRODUCTION (2021)

Review Green & Sustainable Science & Technology

Additives for reducing nitrogen loss during composting: A review

Guangchun Shan et al.

Summary: NH3 and N2O emissions are major forms of nitrogen loss during composting, and additives can effectively reduce these losses. However, the wide variety and complexity of additives pose challenges and potential drawbacks. Physical, chemical, and microbial additives have their own advantages and limitations in reducing NH3 and N2O emissions during composting. Future research should focus on compound additives, reusable porous materials, and the activity of microbial additives to further enhance nitrogen retention in composting.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Biochemistry & Molecular Biology

Denitrifying nirK-containing alphaproteobacteria exhibit different electrode driven nitrite reduction capacities

Ariadna Vilar-Sanz et al.

BIOELECTROCHEMISTRY (2018)

Article Environmental Sciences

Effect of particle size and composition of suspended sediment on denitrification in river water

Zhimei Jia et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2016)