Effect of precursors combined with bacteria communities on the formation of humic substances during different materials composting

Wu, Junqiu; Zhao, Yue; Zhao, Wei; Yang, Tianxue; Xu, Zhang; Xie, Xinglong; Cui, Hongyang; Wei, Zimin

doi:10.1016/j.biortech.2016.12.031

Cited by 274 publications

(57 citation statements)

References 37 publications

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“…Food waste contains a high proportion of biodegradable organic compounds and can cause hygienic hazards, odor and ground water pollution from the leaching of pollutants if not properly treated. Composting is viewed as a clean and viable method to circulate organic wastes (Zhang et al ., 2016; Wu et al ., 2017) and is often used to dispose of food waste and achieve nutrient recycling.…”

Section: Introductionmentioning

confidence: 99%

Effect of inoculation with a microbial consortium that degrades organic acids on the composting efficiency of food waste

Song

Zhang

Xia

et al. 2018

Microbial Biotechnology

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SummaryIn order to overcome the excessive acidification problem, a microbial consortium for the degradation of organic acids (MCDOA), which acts synergistically in degrading organic acids, was developed and used as an inoculum to improve the efficiency of food waste composting. MCDOA could eliminate the initial lag phase of the pile temperature rise because of excessive acidification and effectively shorten the composting period. Fluorescence regional integration analysis of the excitation‐emission matrix spectra of dissolved organic matter showed that compared with raw material, in compost with MCDOA inoculation, the percent fluorescence response (P i,n) values of Regions I, II and IV decreased by 95.11%, 94.19% and 87.41%, respectively, and P i,n of Region V increased by 172.57%. The decreased and increased levels were markedly higher than in the two control groups (MgO and K2 HPO 4 treatment, and uninoculated compost). These findings revealed that MCDOA accelerated the degradation of proteinaceous compounds and the formation of complicated humic‐like materials. Bacterial profiles implied that MCDOA could improve the indigenous bacterial community structure and diversities of acetic and propionic acid‐degrading and lignin‐degrading bacteria, which might account for the high composting efficiency and degree of humification of the inoculated compost.

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Section: Introductionmentioning

confidence: 99%

Effect of inoculation with a microbial consortium that degrades organic acids on the composting efficiency of food waste

Song

Zhang

Xia

et al. 2018

Microbial Biotechnology

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“…3,7 During bioremediation of sites polluted with petroleum and its derivatives, substances similar to humic compounds are created. 8,9 Wu and colleagues 10 found similar sequential biological processes in composting. This is very important because humic substances (HSs) have a tremendously positive influence on soil quality.…”

Section: Introductionmentioning

confidence: 87%

Evolution of humic acids during ex situ bioremediation on a pilot level: The added value of the microbial activity

Žerađanin

Avdalović

Lješević

et al. 2020

JSCS

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Environmental pollution is a global problem, while bioremediation technology removes pollutants from the environment using microorganisms. This study was aimed at investigating how a bioremediation process affected soil humification. In soil polluted with petroleum and its derivatives that was submitted to bioremediation, besides the total petroleum hydrocarbons and the number of microorganisms, quantitative and qualitative changes of isolated humic acids were determined during the process. The bioremediation of 150 m 3 of polluted soil lasted 150 days. The level of total petroleum hydrocarbons decreased by 86.6 %, while the level of humic acids increased by 26.5 %. The elemental analysis showed the reduction of C and the H/C ratio and the increase of O and the O/C ratio of isolated humic acids during the process. The ratio of absorbencies at 465 and 665 nm also increased. Based on this and the Fourier-transform infrared spectra, it was shown that the humic acids isolated at the end of bioremediation were enriched with oxygen functional groups and aromatic structures. This study provides one of the first insights into the relationship between bioremediation and humification, as well as evidence of how hydrocarbon-degrading microorganisms have a significant influence on changes to humic acid structure during bioremediation.

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“…Technologies that seek to reduce the residues of veterinary drugs, mainly antibiotics found in industrial and organic effluents, disposed as bio fertilizers in the soil, are a need in order to minimize the environmental impacts generated by these compounds (HO et al, 2013), Among the several technologies and treatment systems for different origins and compositions of organic effluents, among them pig waste, composting stands out as a practical and low-cost proposal (HO et al, 2013;WEI et al, 2016) also considered a clean and feasible method (WU et al, 2017) for the proper management of these residues. This technique shall be an alternative for the treatment of effluents in small pig farms, located in regions with high concentration of pigs and little arable area available for final disposal of the effluents.…”

Section: Aerobic Treatment System Of Veterinary Drug Residuesmentioning

confidence: 99%

Compostagem de efluente suíno no tratamento de resíduos de fármacos veterinários

Bohrer

Carissimi

López

et al. 2019

SCA

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The increasing need for animal protein has exerted pressures on the current animal production system. One of the alternatives found by producers to improve animal performance has been the use of veterinary drugs, especially antibiotics. However, its indiscriminate use can be a risk to the environmental balance of the producing locations since Brazil has approximately 42 million pigs. With this herd, pig farming represents a great potential for generating environmental impacts. As an alternative use of the large volume of liquid pig manure generated, many producers have been using this slurry in the soil as a bio fertilizer. Residues of veterinary drugs are capable of accumulation with environmental matrices and leach into water resources. In this sense, it is mandatory to dedicate more efforts on the study of techniques and processes for the treatment of organic effluents contaminated by veterinary drugs. Low-cost and environmentally friendly alternative treatment systems are necessary, in order to minimize the entry of these contaminants into the environment. Therefore, the composting process, defined as aerobic microbial decomposition process of organic matter, can be an alternative for treating the effluents contaminated by veterinary drugs. This review to aims to create awareness in the academic community regarding the veterinary drug residues and their contamination potential in different environmental matrices, as well as evaluating the composting process as a technique to minimize the impacts of the swine activity waste on the environment.

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Effect of precursors combined with bacteria communities on the formation of humic substances during different materials composting

Cited by 274 publications

References 37 publications

Effect of inoculation with a microbial consortium that degrades organic acids on the composting efficiency of food waste

Effect of inoculation with a microbial consortium that degrades organic acids on the composting efficiency of food waste

Evolution of humic acids during ex situ bioremediation on a pilot level: The added value of the microbial activity

Compostagem de efluente suíno no tratamento de resíduos de fármacos veterinários

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