Stress response characteristics of indigenous microorganisms in aromatic-hydrocarbons-contaminated groundwater in the cold regions of Northeast China

Wang, Jili; Zhang, Yuling; Ding, Yang; Song, Hewei; Liu, Ting; Xu, Weiqing; Zhang, Yi; Shi, Yujia

doi:10.1016/j.ecoenv.2022.114139

Cited by 8 publications

(2 citation statements)

References 49 publications

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“…The differences between biological nutrition agents are mainly reflected in their trace elements, such as the concentration of Ca + , Zn 2+ , Ni 2+ , Mn 2+ , Co 2+ , and Mo 2+ . There are relatively fewer types of inorganic salts in the nutrient agents used to enhance chlorinated hydrocarbon pollution sites [11,[16][17][18], while SO 4 2− and NO 3 − are required as electron acceptors for the components of polycyclic aromatic hydrocarbons and petroleum hydrocarbon agents [11,15,[18][19][20][21][22][23][24][25][26][27][28][29][30][31][32].…”

Section: Biological Nutrition Agentsmentioning

confidence: 99%

“…At present, there are many different directions for material research on carbon release agents. At present, the main directions of slow-release agents are emulsified oil [33,34,[59][60][61][62][63], coating or loading materials [11,15,16,19,31,32,50], or biochar materials [54,58,[64][65][66][67][68]. Table 3 summarizes the various carbon release agents that are widely used in research at present, among which emulsified oil is the most widely studied, the application of coating or loading materials is relatively small, and the supporting materials are relatively single and often combined with other types of carbon releasing agents.…”

Section: Carbon-release Agentmentioning

confidence: 99%

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Review on Research and Application of Enhanced In-Situ Bioremediation Agents for Organic Pollution Remediation in Groundwater

Xie,

Zhang,

Jing

et al. 2024

Water

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Groundwater is an important part of the water resources, crucial for human production and life. With the rapid development of industry and agriculture, organic pollution of groundwater has attracted great attention. Enhanced in-situ bioremediation of groundwater technology has gradually gained attention because of its high efficiency and low environmental impact. Bioremediation agents are crucial for bioremediation technology. In this review, bioremediation agents were classified into three categories: biological nutrition agents, slow-release agents, and microbial agents. Biological nutrition agents are a specific mixture of mineral salt and carbon source; slow-release agents may contain mineral salt, carbon source, pH buffers, and oxygen-releasing material and microbial agents with specific microbial culture. By adding bioremediation agents to the polluted sites, they can improve population density and degradation efficiency for microbial degradation of pollutants. To assist future development and application of bioremediation agents, the development of different agents in laboratory and commercial to date was retrieved online via publisher sites and cooperation case studies. The data collected were analyzed and reviewed, as well as application and remediation effects of enhanced in-situ bioremediation agents were summarized. Current studies mainly focus on laboratory development and experiments, while field tests and remediation effects between different agents are of less concern. Further study may focus on developing new materials, especially coating or loading materials, and systematic evaluation of different agents, considering both laboratory research and on-site experiments, in order to improve the efficiency of in situ organically contaminated groundwater bioremediation.

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