Key environmental factors to variation of ammonia-oxidizing archaea community and potential ammonia oxidation rate during agricultural waste composting

Ren, Liheng; Cai, Chen-Bo; Zhang, Jiachao; Yang, Yuan; Wu, Genyi; Luo, Lin; Huang, Hongli; Zhou, Yaoyu; Qin, Pufeng; Yu, Man

doi:10.1016/j.biortech.2018.09.042

Cited by 51 publications

(20 citation statements)

References 49 publications

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“…The initial value of TN was 1.3 ± 0.02%, similar to the 1.5% reported for OP waste [51]. The final value was 2.49 ± 0.04%, which coincided with the 2.10% obtained in the precomposting process of orange waste [47,52]. The increase in TN could be attributed to the formation of NH4 + ions caused by the biodegradation of organic compounds [38,53].…”

Section: Sensory Characteristics Of Precompostingsupporting

confidence: 82%

Valorization of Orange Peel Waste Using Precomposting and Vermicomposting Processes

et al. 2020

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The industrialization process of oranges generates waste, which is inadequately disposed of; this produces adverse effects on the environment. Among the alternatives for valorization is the vermicomposting process, which consists of the degradation of organic waste through the action of earthworms and microorganisms. Therefore, this research aimed to study this process using orange peel (OP) waste at the laboratory level. For this purpose, it was necessary to determine the degradation conditions through the monitoring of physicochemical parameters (temperature, pH, humidity, organic matter (OM), total organic carbon (TOC), total nitrogen (TN) and the carbon/nitrogen (C/N) ratio). To balance the substrate’s nutrients, load material (LM) that included vegetable waste and eggshells was added to three different mixtures: M1 (50% OP + 50% LM), M2 (40% OP + 60% LM) and M3 (60% OP + 40% LM). To condition the substrate for earthworm (Eisenia fetida) activity, a previous precomposting process was performed. The results showed that all the mixtures fulfilled the requirements for a quality and mature vermicompost; however, the highest concentrations for TN were in the mixtures M1 and M2. The total time required for degradation of the OP waste was 13 weeks.

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Section: Sensory Characteristics Of Precompostingsupporting

confidence: 82%

Valorization of Orange Peel Waste Using Precomposting and Vermicomposting Processes

et al. 2020

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“…Plenty of studies have shown that sample properties (e.g., substrate utilizable, pile temperature, and C/N ratio) were changed by biochar/zeolite addition during agricultural waste composting. Confirming which physico-chemical parameters significantly influenced the microbial communities is propitious to better explain changes during the waste composting system with different addition strategies [2,48]. Biochar and zeolite are most likely to indirectly affect the bacterial and fungal communities by the increased pile temperature, enhanced substrate utilization, and other changed factors.…”

Section: Discussionmentioning

confidence: 99%

“…The features of these raw initial materials can be seen in Table 1. Straw, soil, bran, and vegetables were mixed evenly in a ratio of 11:8:2:3 (fresh weight) [2,23]. Four different treatments were conducted as follows: Run A was the control treatment without any addition and Runs B, C, and D were added with zeolite (5%), biochar (5%), and zeolite (5%) + biochar (5%), respectively.…”

Section: Raw Materials and Experiments Set-upmentioning

confidence: 99%

“…Sub-samples were collected from different positions in the middle of piles on days 0, 1,2,3,5,7,12,18,26,38, and 50, respectively. Samples for molecular analysis were mixed before use and stored at −20 • C, and those for the physico-chemical parameter determination were stored at 4 • C. Pile temperature, pH, total organic matter (TOM), water-soluble carbon (WSOC), moisture, ammonium (NH 4 + -N), and nitrate (NO 3 − -N) were detected following the methods mentioned previously [2,23].…”

Section: Parameters Determinationmentioning

confidence: 99%

“…Composting has been widely considered to be an efficient way to convert organic wastes into valuable products [1][2][3]. A large amount of carbon and nitrogen (9.6-50%), mainly in the form of ammonia (NH 3 ), methane (CH 4 ), and nitrous oxide (N 2 O), are lost from the raw materials during composting [4,5].…”

Section: Introductionmentioning

confidence: 99%

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Bacterial and Fungal Community Dynamics and Shaping Factors During Agricultural Waste Composting with Zeolite and Biochar Addition

Ren

Luo

et al. 2020

Sustainability

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Bacterial and fungal communities play significant roles in waste biodegradation and nutrient reservation during composting. Biochar and zeolite were widely reported to directly or indirectly promote microbial growth. Therefore, the effects of zeolite and biochar on the abundance and structure of bacterial and fungal communities and their shaping factors during the composting of agricultural waste were studied. Four treatments were carried out as follows: Run A as the control without any addition, Run B with zeolite (5%), Run C with biochar (5%), and Run D with zeolite (5%) and biochar (5%), respectively. The bacterial and fungal community structures were detected by high-throughput sequencing. Redundancy analysis was used for determining the relationship between community structure and physico-chemical parameters. The results indicated that the addition of biochar and zeolite changed the physico-chemical parameters (e.g., pile temperature, pH, total organic matter, ammonium, nitrate, and water-soluble carbon) during the composting process. Zeolite and biochar significantly changed the structure and diversity of bacterial and fungal populations. Moreover, the bacterial community rather than the fungal community was sensitive to the biochar and zeolite addition during the composting process. Community phylogenetic characteristics showed that Nocardiopsaceae, Bacillaceae, Leuconostocaceae, Phyllobacteriaceae, and Xanthomonadaceae were the predominant bacterial species at the family-level. Chaetomiaceae and Trichocomaceae were the two most dominant fungal species. The pH, total organic matter, and nitrate were the most important factors affecting the bacterial and fungal population changes during the composting process.

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The characteristics of alkaline phosphatase activity and phoD gene community in heavy-metal contaminated soil remediated by biochar and compost

Cai

Zhang

et al. 2022

Bull Environ Contam Toxicol

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Key environmental factors to variation of ammonia-oxidizing archaea community and potential ammonia oxidation rate during agricultural waste composting

Cited by 51 publications

References 49 publications

Valorization of Orange Peel Waste Using Precomposting and Vermicomposting Processes

Valorization of Orange Peel Waste Using Precomposting and Vermicomposting Processes

Bacterial and Fungal Community Dynamics and Shaping Factors During Agricultural Waste Composting with Zeolite and Biochar Addition

The characteristics of alkaline phosphatase activity and phoD gene community in heavy-metal contaminated soil remediated by biochar and compost

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