Reducing nitrogen loss during kitchen waste composting using a bioaugmented mechanical process with low pH and enhanced ammonia assimilation

Review Environmental Sciences

Cycles of carbon, nitrogen and phosphorus in poultry manure management technologies - environmental aspects

Malgorzata Kacprzak et al.

Summary: Poultry manure management is an environmental problem, and the cycles of carbon, nitrogen, and phosphorus play an essential role in the processes of composting, anaerobic digestion, or thermal treatment.

CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY (2023)

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Article Engineering, Environmental

Preliminary techno-economic analysis of three typical decentralized composting technologies treating rural kitchen waste: a case study in China

Haoshu Wang et al.

Summary: This study evaluated the application of decentralized rural kitchen waste (KW) composting technologies in China. Three types of composting technologies were analyzed, and it was found that all three technologies meet China's organic fertilizer standard. Solar-assisted (SAC) and bio-enhanced (BEC) composting were economically viable, generating net profits and positive net present values. The study emphasizes the importance of KW-handling subsidies and suggests technological improvements and policy support for decentralized rural KW composting management.

FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING (2023)

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Article Engineering, Environmental

Rapid start-up and humification of kitchen waste composting by an innovative biodrying-enhanced process

Liqing Xin et al.

Summary: An innovative biodrying-enhanced composting (BEC) system has been developed to rapidly process kitchen waste (KW) into highly matured products by applying biodrying as the start-up stage of composting. The performance and potential mechanisms of rapid start-up and humification in the BEC system were explored through a continuous pilot experiment. The results showed that the BEC system achieved highly matured products with a germination index of 91.85%-112.08% and a humification index of 6.21-6.36, using a 9-day retention time. The biodrying stage of 24 hours significantly accelerated KW dehydration and the start-up of the composting process. The stage-enriched bacteria and yeast rapidly decomposed macromolecular substances and generated precursors for humic acid synthesis, leading to the formation of stable humic acid during the humification stage.

CHEMICAL ENGINEERING JOURNAL (2023)

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Article Engineering, Environmental

Hyperthermophilic pretreatment composting to produce high quality sludge compost with superior humification degree and nitrogen retention

Yanfei Tang et al.

Summary: Hyperthermophilic pretreatment composting showed higher efficiency in sludge degradation and phytotoxicity removal, leading to enhanced humification and organic nitrogen retention. The pretreatment promoted protein transformation and humic acid polymerization, with the mechanism involving the stimulation of essential precursors formation and bacterial community evolution.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

Key factors affecting seed germination in phytotoxicity tests during sheep manure composting with carbon additives

Guoying Wang et al.

Summary: This study investigated key phytotoxicity factors affecting seed germination in compost by using aqueous extracts in seed germination tests. Results showed that all additives improved seed germination indexes and a structural equation model revealed main factors affecting seed germination were TOC, acetic acid, humic acid, and pH.

JOURNAL OF HAZARDOUS MATERIALS (2022)

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Article Engineering, Environmental

Dynamics of antibiotics and antibiotic resistance genes in four types of kitchen waste composting processes

Changxun Zhao et al.

Summary: Kitchen waste can be a potential source of antibiotics and antibiotic resistance genes even after composting, with dynamic composting processes reducing antibiotic removal efficiency and increasing certain antibiotic resistance gene abundance. Mobile genetic elements play a dominant role in driving the dynamics of antibiotic resistance genes during composting processes.

JOURNAL OF HAZARDOUS MATERIALS (2022)

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Review Environmental Sciences

Heterotrophic nitrifying bacteria in wastewater biological nitrogen removal systems: A review

Shoupeng Duan et al.

Summary: Heterotrophic nitrifying bacteria (HNB) have the potential to play an important role in wastewater biological nitrogen removal (BNR) engineering due to their ability to use organic compounds, proliferate rapidly, and achieve simultaneous nitrification and denitrification. This review provides a comprehensive overview of the physiological characteristics, phylogenetic diversity, bioaugmentation applications, and activity detection of HNB in wastewater BNR systems. Understanding the contribution of HNB to ammonia oxidization in the presence of various autotrophic ammonia-oxidizing microorganisms is crucial for the control, improvement, and optimization of wastewater BNR systems.

CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY (2022)

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Article Engineering, Environmental

Carbohydrate degradation contributes to the main bioheat generation during kitchen waste biodrying process: A pilot study

Liqing Xin et al.

Summary: Biodrying is an effective method for processing kitchen waste into reusable solid recovered fuels. The degradation of biochemical components in kitchen waste generates bioheat, leading to dehydration. Carbohydrates are the main contributors to bioheat during biodrying process, with high decomposition rate and significant contribution to water evaporation.

WASTE MANAGEMENT (2022)

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Article Green & Sustainable Science & Technology

The active role of metabolic regulators in nitrogen loss reduction and organic nitrogen transformation during different materials composting

Liqin Wang et al.

Summary: This study aimed to investigate the role of metabolic regulators in promoting organic N transformation and reducing N losses during composting. Results showed that adding metabolic regulators significantly increased organic N content and reduced N losses, especially in composting of garden waste.

JOURNAL OF CLEANER PRODUCTION (2022)

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Article Environmental Sciences

The removal of ammonia nitrogen via heterotrophic assimilation by a novel Paracoccus sp. FDN-02 under anoxic condition

Biqi Yang et al.

Summary: Strain FDN-02 showed high efficiency in removing NH4+-N, with optimal growth conditions including an initial pH of 7.0, sucrose as the carbon source, and a C/N ratio of 16. In addition to NH4+-N removal through heterotrophic assimilation, FDN-02 also exhibited denitrification capabilities for further removal of nitrate nitrogen and nitrite nitrogen. Moreover, the biomass had potential for resource utilization and could serve as an alternative nutrient source for livestock feed and organic fertilizers.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

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Article Soil Science

Ammonia volatilization and Sporosarcina genus abundance in an Oxisol enriched with urea, compost and biochar

Michelle Alves Coelho et al.

Summary: This study aims to evaluate the effects of adding urea, compost, and biochar to soil on ammonia volatilization and the bacterial community in the soil-urea microenvironment. The results show that the addition of acidic biochar reduces ammonia volatilization and affects urease activity.

APPLIED SOIL ECOLOGY (2022)

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Article Environmental Sciences

Characterization of heterotrophic nitrification by a thermotolerant Brevibacillus Agri N2 isolated from sewage sludge composting

Yi Zhao et al.

Summary: A thermotolerant strain Brevibacillus Agri N2 isolated from sewage sludge composting exhibited efficient heterotrophic nitrification capability under high-temperature conditions, utilizing various nitrogen sources with minimal nitrogen loss. The detection of key enzymes and genes provided evidence of its nitrification ability, indicating its potential for practical application in reducing nitrogen loss during sewage sludge composting.

ENVIRONMENTAL RESEARCH (2022)

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Article Agricultural Engineering

Effects of FeSO4 dosage on nitrogen loss and humification during the composting of cow dung and corn straw

Juan Mei et al.

Summary: The addition of FeSO4 in the composting process of cow dung and corn straw was found to reduce nitrogen loss and increase the content of humus substances, leading to a higher maturity degree of the compost product. This study demonstrated that FeSO4 can inhibit organic matter mineralization and accelerate the formation of humus substances during composting.

BIORESOURCE TECHNOLOGY (2021)

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Article Chemistry, Multidisciplinary

Accelerating Food Waste Composting Course with Biodrying and Maturity Process: A Pilot Study

Liqing Xin et al.

Summary: The study shows that by regulating ventilation and turning frequencies with an intelligent heating mode, proper air flow and high matrix temperature can be maintained to enhance water evaporation and bioheat generation. Bioheat plays a crucial role in material dehydration and maturation, and water evaporation assisted by high-efficiency ventilation is a leading way for water removal during the B&M process. Ultimately, the synergistic effects of auxiliary measures greatly accelerate the composting of food waste into reusable organic fertilizer and reduce energy consumption.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2021)

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Article Environmental Sciences

Bacterial dynamics for gaseous emission and humification in bio-augmented composting of kitchen waste

Xingzu Gao et al.

Summary: Adding microbial inoculants during composting can alter the diversity of bacterial communities, promote humification, and reduce gaseous emissions; under conditions with added microbial inoculants, ammonia and hydrogen sulfide emissions increase, while methane and nitrogen oxide emissions decrease.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

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Article Microbiology

Different Effects of Thermophilic Microbiological Inoculation With and Without Biochar on Physicochemical Characteristics and Bacterial Communities in Pig Manure Composting

Likun Sun et al.

Summary: This study evaluated the effects of thermophilic microbiological inoculation and biochar integration on the physicochemical characteristics and bacterial communities in pig manure composting with wheat straw. Both inoculation and biochar accelerated temperature rise during composting, with different effects on nitrogen and carbon degradation. The composition of bacterial phyla and genera was influenced by temperature, nitrogen levels, and water content, with significant impacts on bacterial richness and diversity.

FRONTIERS IN MICROBIOLOGY (2021)

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Review Agricultural Engineering

A review on nitrogen dynamics and mitigation strategies of food waste digestate composting

M. K. Manu et al.

Summary: The production, characteristics, and composting of food waste digestate are discussed in this review, along with an evaluation of nitrogen dynamics cycle considering high ammonium nitrogen content. Mitigation strategies for reducing nitrogen loss through C/N ratio adjustment and the addition of physical, chemical, and microbial amendments are also evaluated and estimated for 15 countries based on available data.

BIORESOURCE TECHNOLOGY (2021)

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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)

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Article Engineering, Environmental

Microbial driven reduction of N2O and NH3 emissions during composting: Effects of bamboo charcoal and bamboo vinegar

Honghong Guo et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

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Article Agricultural Engineering

Compost supplementation with nitrogen loss and greenhouse gas emissions during pig manure composting

Yajun Yang et al.

BIORESOURCE TECHNOLOGY (2020)

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Article Engineering, Environmental

Biochar drives microbially-mediated rice production by increasing soil carbon

Qiong Nan et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

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Article Biotechnology & Applied Microbiology

Bacillus velezensis LG37: transcriptome profiling and functional verification of GlnK and MnrA in ammonia assimilation

Guangxin Liu et al.

BMC GENOMICS (2020)

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Article Engineering, Environmental

Effects of the C/N ratio and moisture content on the survival of ESBL-producing Escherichia coli during chicken manure composting

Corinna Thomas et al.

WASTE MANAGEMENT (2020)

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Article Agricultural Engineering

Bacterial ecosystem functioning in organic matter biodegradation of different composting at the thermophilic phase

Zhijian Kong et al.

BIORESOURCE TECHNOLOGY (2020)

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Article Engineering, Environmental

Diversity in the Mechanisms of Humin Formation during Composting with Different Materials

Xintong Gao et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2019)

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Article Agricultural Engineering

Succession of organics metabolic function of bacterial community in response to addition of earthworm casts and zeolite in maize straw composting

Guixiang Zhou et al.

BIORESOURCE TECHNOLOGY (2019)

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Article Green & Sustainable Science & Technology

Buffering phosphate mitigates ammonia emission in sewage sludge composting: Enhanced organics removal coupled with microbial ammonium assimilation

Zongqi Shou et al.

JOURNAL OF CLEANER PRODUCTION (2019)

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Article Agricultural Engineering

Effects of exogenous protein-like precursors on humification process during lignocellulose-like biomass composting: Amino acids as the key linker to promote humification process

Zhechao Zhang et al.

BIORESOURCE TECHNOLOGY (2019)

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Article Environmental Sciences

Hyperthermophilic composting reduces nitrogen loss via inhibiting ammonifiers and enhancing nitrogenous humic substance formation

Peng Cui et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2019)

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Article Environmental Sciences

Lactic acid bacteria modulate organic acid production during early stages of food waste composting

Quyen Ngoc Minh Tran et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2019)

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Article Agricultural Engineering

The changes in carbon, nitrogen components and humic substances during organic-inorganic aerobic co-composting

Huiyong Yu et al.

BIORESOURCE TECHNOLOGY (2019)

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Biochar combined with montmorillonite amendments increase bioavailable organic nitrogen and reduce nitrogen loss during composting

Longji Zhu et al.

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Effect of temperature on thermophilic composting of aquaculture sludge: NH3 recovery, nitrogen mass balance, and microbial community dynamics

Mitsuhiko Koyama et al.

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Performance of phosphogypsum and calcium magnesium phosphate fertilizer for nitrogen conservation in pig manure composting

Yun Li et al.

BIORESOURCE TECHNOLOGY (2018)

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Keystone taxa as drivers of microbiome structure and functioning

Samiran Banerjee et al.

NATURE REVIEWS MICROBIOLOGY (2018)

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The microbial nitrogen-cycling network

Marcel M. M. Kuypers et al.

NATURE REVIEWS MICROBIOLOGY (2018)

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Article Biotechnology & Applied Microbiology

Nitrogen loss reduction by adding sucrose and beet pulp in sewage sludge composting

Weiguang Li et al.

INTERNATIONAL BIODETERIORATION & BIODEGRADATION (2017)

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Effects of sucrose amendment on ammonia assimilation during sewage sludge composting

Liqiang Meng et al.

BIORESOURCE TECHNOLOGY (2016)

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Article Agricultural Engineering

Effect of different struvite crystallization methods on gaseous emission and the comprehensive comparison during the composting

Tao Jiang et al.

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Article Biochemical Research Methods

DADA2: High-resolution sample inference from Illumina amplicon data

Benjamin J. Callahan et al.

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Non-target effects of repeated chlorothalonil application on soil nitrogen cycling: The key functional gene study

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Gut microbiota role in dietary protein metabolism and health-related outcomes: The two sides of the coin

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Insight into the Effects of Biochar on Manure Composting: Evidence Supporting the Relationship between N2O Emission and Denitrifying Community

Cheng Wang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2013)

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QIIME allows analysis of high-throughput community sequencing data

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Reducing nitrogen loss during kitchen waste composting using a bioaugmented mechanical process with low pH and enhanced ammonia assimilation

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