Article
Engineering, Environmental
Christian Zafiu, Erwin Binner, Peter Beigl, Benedikt Vay, Juergem Ebmer, Marion Huber-Humer
Summary: The quantity and type of macro-and microplastics during the composting process were investigated in two state-of-the-art composting plants in Austria. Microplastics >0.2 mm were found after the first turning event in both facilities. The plant with shorter turning intervals generated more microplastics, averaging approximately 21 particles per week and kg- 1 DM during the first four weeks.
Article
Engineering, Environmental
Francesco Degli-Innocenti
Summary: The composting process requires mixing feedstocks with different biodegradation behavior and C/N ratios to obtain quality compost. Cellulose, despite lacking nitrogen, is essential for composting and provides energy and biomass to the process.
Article
Green & Sustainable Science & Technology
Yun Li, Jiuzhou Li, Shanshan Li, Xiaohan Zhang, Xiaomin Xie
Summary: This study investigated the composting performance of Enteromorpha under different composting techniques and the effects of adding mushroom waste as an additive. The results showed that Enteromorpha had high compostability and low phytotoxicity, and the addition of mushroom waste improved the composting process. Forced ventilation was found to reduce the phytotoxicity of Enteromorpha composting better than windrow composting.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Xiaoliang Kong, Gongwen Luo, Binghua Yan, Ning Su, Peng Zeng, Jialu Kang, Yuping Zhang, Guixian Xie
Summary: Dissolved organic matter (DOM) can reflect composting components changes and indicate the humification process. Three compost mixtures and two techniques were used to demonstrate this. The evolution of DOM was detected using three spectral techniques. X-ray diffraction showed a gradual decrease in crystal structure substances during composting. Fourier transform infrared spectroscopy and three-dimensional fluorescence spectroscopy further showed the beneficial effects of pig manure-based mixtures, cabbage, and windrow composting on decomposing organic compounds and producing humic acids. DOM evolution can quickly reflect compost maturity.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Xiangning He, Riyao Cong, Wei Gao, Xueying Duan, Yi Gao, Hong Li, Zepu Li, Hailin Diao, Jianju Luo
Summary: With the recent revolution in the green economy, the utilization of agricultural solid waste resources has become an important project. A small-scale laboratory experiment was conducted to study the effects of C/N ratio, initial moisture content, and fill ratio on the compost maturity of cassava residue. The results showed that C/N ratio and moisture content significantly affected the composting process, while fill ratio only had a significant impact on pH value and phosphorus content. Based on comprehensive analysis, the recommended process parameters for pure cassava residue composting were determined.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Tao Fu, Jiahuan Tang, Jiaxiong Wu, Chang Shen, Huayuan Shangguan, Raymond Jianxiong Zeng, Shungui Zhou
Summary: This study investigates the effects of an alternating electric field (AEF) on composting to achieve hyperthermophilic composting (HTC). The results show that AEF can raise compost temperature to 90 degrees C, improve the degradation and humification of organic matter, and enrich thermophilic bacteria. A techno-economic analysis indicates that AEF has a cost advantage over HTC with the inoculation of hyperthermophilic bacteria, making it a novel and applicable strategy for HTC.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Beini Gong, Xiujuan Zhong, Xian Chen, Shikun Li, Jiale Hong, Xiaoyun Mao, Zongwen Liao
Summary: Compost dissolved organic matter (DOM) is a critical factor determining plant growth, with higher DOM content in compost leading to greater plant biomass. Manipulating composting oxygen supply conditions can increase compost DOM and ultimately result in increased plant yield.
Article
Engineering, Environmental
Eric Walling, Celine Vaneeckhaute
Summary: Mathematical models have been developed over the past 40 years to describe the composting process, but simple models lack generalizability and generalizable models lack simplicity, requiring information on many operating variables. This study explores novel modeling approaches that split degradation into three separate phases and only require two parameters, achieving errors between 1.13% and 6.32% and outperforming traditional first-order models in every case.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Anita Zapalowska, Andrzej Skwiercz, Anna Tereba, Czeslaw Puchalski, Tadeusz Malewski
Summary: This study evaluated the reliability of nematode community succession patterns in composting processes for assessing the level of waste degradation. The results showed that bacterial-feeding nematodes maintained dominance, while fungus-feeding nematodes increased gradually during the composting process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Green & Sustainable Science & Technology
Rui Pinto, Claudia Correia, Isabel Mourao, Luisa Moura, Luis Miguel Brito
Summary: The wine industry generates a large amount of waste, and composting is an alternative for recycling these residues with agronomic and environmental advantages. The conditions of the pile during composting plays a significant role in the final compost quality, as demonstrated by the temperature and moisture content variations in the static and turned piles. The study shows that composting grape marc with stalks for 140 days results in stabilized and matured compost with good chemical characteristics for soil organic amendment, without the need for rewetting or turning the piles.
Review
Environmental Sciences
Babett Greff, Erika Lakatos, Jeno Szigeti, Laszlo Varga
Summary: The increasing use of herbal essential oils has led to rapid global production and generation of large amounts of plant residues. Co-composting herbal residues with various wastes presents an eco-friendly and cost-effective waste management option, but the biologically active compounds in these residues may impact microbial activity and compost quality. Further research is needed to assess the potential antipathogenic effects of specific herb species in composts.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Agronomy
Monika Jakubus, Waldemar Spychalski
Summary: This paper presents a comparative study on six different composts in terms of their agricultural quality. The results show that the composts contain a small share of easily decomposable compounds, indicating low susceptibility to microbiological degradation in soil. The bioavailable metal amounts found in the analyzed composts were also low, suggesting that these composts can be considered safe for the environment when applied to the soil.
Article
Engineering, Environmental
Haishi Qi, An Zhang, Zhuang Du, Junqiu Wu, Xiaomeng Chen, Xu Zhang, Yue Zhao, Zimin Wei, Xinyu Xie, Yue Li, Min Ye
Summary: The addition of delta-MnO2 can accelerate the process of organic waste disposal, improving the structure and quantity of humus. While it has no significant effect on the concentration of FA and HA, delta-MnO2 can improve their structure and affect the bacterial community.
Article
Environmental Sciences
Yuanji Wang, Li Liu, Shan Cao, Jing Yu, Xiangyu Li, Yating Su, Gaochao Li, Hua Gao, Zhengyang Zhao
Summary: Long-term plastic mulching and organic compost application increase the abundance of microplastics in apple orchards, with plastic mulching contributing the most and organic composts increasing the complexity and diversity of microplastics.
ENVIRONMENTAL POLLUTION
(2023)
Article
Agricultural Engineering
Yumei Wang, Ya Tang, Zengwei Yuan
Summary: This study investigated the impact of mature compost addition on food waste composting properties. Results showed that mature compost amendment increased the reduction rate of volatile solids and shortened the composting period. Addition of mature compost enhanced the bacterial abundance related to maturity and promoted the degradation of organic matter by providing an appropriate temperature environment. This study revealed the underlying mechanisms of bacterial community succession with mature compost addition.
BIORESOURCE TECHNOLOGY
(2022)