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Biological perspectives in geotechnics:Application and monitoring

Journal of Rock Mechanics and Geotechnical Engineering 2024年第7期16卷 2854-2878页

作者： Partha Narayan Mishra Surabhi Jain Thierry Bore Ilhan Chang Yeong-Man Kwon Yijie Wang Hirak Ranjan Dash Ashutosh Kumar Satyam Tiwari Ningjun Jiang Sarat Kumar Das Alexander Scheuermann Department of Civil Engineering Indian Institute of Technology KanpurKanpur208016India School of Civil Engineering University of QueenslandSt LuciaQLD4072Australia Department of Civil Engineering Indian Institute of Technology DhanbadDhanbad826004India Department of Civil System Engineering Ajou UniversitySuwon-si16499Republic of Korea School of Engineering and IT University of New South WalesCanberraACT2600Australia Department of Civil and Environmental Engineering Northwestern UniversityEvanstonIL60208USA Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongChina National Forensic Sciences University New Delhi110085India Southeast University Nanjing211189China

This paper builds on exploring the applications of biomediated pathways to solve geotechnical ***,the state of the art of biological remediation strategies including microbial remediation and phytoremediation have been introduced and critically reviewed in the context of decontaminating the ***,biopolymerisation,biomineralisation and bioneutralisation processes have been depicted with a special emphasis on the applications including but not limited to soil stabilisation,soil erosion prevention,anti-desertification and pH *** of these methods have their own limitations and bottlenecks while scaling up,and these challenges have been summarised and some possible paths to overcome the challenges have also been *** state of the art of electromagnetic(EM)monitoring methods to capture the effects of biomediation on spatio-temporal soil properties are then highlighted as a non-invasive and rapid pathway to track the progress of biomediated soil ***,each of the technologies discussed have been evaluated for their maturity level using the principles of technology readiness level(TRL).A majority of the technologies amounting to around 77%are still in the TRL 4e7,*** the valley of *** is thus evident that development of these technologies needs to be supported with appropriate funding for improving their maturity to a level of industrial deployment.

关键词： Biogeotechnics bioremediation Phytoremediation Biopolymers Biomineralisation Electromagnetic(EM)methods technology readiness level(TRL)

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Microfiltration,ultrafiltration and nanofiltration as a post-treatment of biological treatment process with references to oil field produced water of Moran oilfield of Assam

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Petroleum Research 2024年第1期9卷 143-154页

作者： Amarjit Rajbongshi Subrata Borgohain Gogoi Brahmaputra Valley Fertilizer Corporation Limited NamrupAssamIndia Department of Petroleum Technology Dibrugarh UniversityAssamIndia

The selection of an apt technology for the treatment of Oilfield Produced Water(OFPW)depends mainly on the quality of OFPW and methods of pre-and post-treatment *** most challenging part of the OFPW treatment process is the removal of Suspended Solid(SS),Oil&Grease(O&G)and dissolved *** and O&G pose an acute problem to the membrane filtration system by fouling the membrane surface which increases operation&maintenance costs and decreases the life of the *** of the membrane surface is mainly attributed to the presence of low molecular weight aromatic compounds and naphthenic acids in the suspended and dissolved organic ***,the removal of these suspended and dissolved organic compounds before membrane filtration proffers a challenge to the *** this research,bioremediation process has been applied to remove the organic compounds and the performance and fouling behaviour of hollow fibre Microfiltration(MF),Ultrafiltration(UF)and Nanofiltration(NF)membranes after the bioremediation process has been analyzed in *** level of toxicity was determined by comparing the pollutants with the safe discharge limit for disposal into the environment set by Central Pollution Control Board(CPCB),*** research presents its novelty by using a hydrocarbon-degrading bacteria,Pseudomonas aeruginosa for the Reduction of Organic Loads(ROL)from OFPW of Moran oil field of Upper Assam as a pre-treatment to membrane *** Total Sum Corrected Area(TSCA)method through chromatographic analyses was used for *** organic loads removal from OFPW by the TSCA method was found to be 67-100%,100%and 100%after 7,14 and 21 days of bioremediation *** major parameters in feed OFPW of Moran oil field were found to be pH(7.5-9.3),Total Dissolved Solid(TDS)(1.79-4.75)ppt,O&G(1.78-2.8)ppt,Salinity(2.94-6.98)ppt,Chloride(Cl^(-))(1.6-3.86)ppt,Bicarbonate(HCO_(3)^(-))(2.89-4.03)*** was observed that the ranges of pollutants

关键词： Oilfield produced water Organic compounds bioremediation Membrane filtration Membrane fouling

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Heavy Metal Contamination in Farmland Soil and bioremediation Measures: A Case Study of the Mining Area in Shaoguan

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Asian Agricultural Research 2016年第7期8卷 72-74页

作者： Xiangfeng WEI Yongxian LIU Liping PAN New Ground Environmental Co. Ltd. Institute of Agricultural Resources and Environment Guangxi Academy of Agricultural Sciences

With the rapid development of mining,the soil heavy metal contamination is increasingly serious in Shaoguan,directly affecting the production of crops. This paper analyzes the farmland soil heavy metal contamination in the mining area of Shaoguan and the causes of heavy metal contamination in recent years,brings forward the bioremediation measures to control soil heavy metal contamination,and points out the development direction of bioremediation in farmland soil heavy metal contamination in the mining area.

关键词： Farmland soil Heavy metal contamination bioremediation

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Isolation and Screening of Three Algicidal Bacterial Strains and Their bioremediation Effect on Eutrophic Water Bodies

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Meteorological and Environmental Research 2017年第3期8卷 76-79页

作者： Wang Yan Liu Ping School of Bioengineering Binzhou University Key Laboratory of Ecological Environment of Yellow River Delta in Shandong Province

To study the control effect of algicidal bacteria on blue-green algal blooms in natural conditions,three algicidal bacterial strains were used to make a compound algal inhibiting agent,and the removal effects of the algal inhibiting agent on algae,nitrogen,phosphorus,organic matter,and chlorophyll a in Chendian pool and Qiangwei pool of Quancheng Park in Jinan City were analyzed. The results show that the algal inhibiting agent could eliminate the blue-green algal blooms. 54 days later,chlorophyll a content in the water bodies reduced to below 0. 06 mg/L,and both COD_(Cr)and BOD_5 decreased significantly. NH_4^+-N and TP content were lower than 2 and 0. 05 mg/L respectively. The removal rate of COD_(Cr)was slightly low( 33%-48%),and the removal rates of other indicators were higher than 60%. It is clearly seen that the algal inhibiting agent could quickly eliminate the algal blooms and had a notable effect on the recovery of the eutrophic water bodies.

关键词： Algicidal bacteria Algal blooms Eutrophication In-situ bioremediation

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Abiotic and biotic constituents of oil sands process-affected waters

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Journal of Environmental Sciences 2023年第5期127卷 169-186页

作者： Nora A.S.Hussain James L.Stafford Department of Biological Sciences University of AlbertaEdmontonAlberta T6G 2N8Canada

The oil sands in Northern Alberta are the largest oil sands in the world,providing an important economic resource for the Canadian energy *** extraction of petroleum in the oil sands begins with the addition of hot water to the bituminous sediment,generating oil sands process-affected water(OSPW),which is acutely toxic to *** of litres of OSPW are stored on oil sands mining leased sites in man-made reservoirs called tailings *** the volume of OSPW increases,concerns arise regarding the reclamation and eventual release of this water back into the *** is composed of a complex and heterogeneous mix of components that vary based on factors such as company extraction techniques,age of the water,location,and bitumen ore ***,the effective remediation of OSPW requires the consideration of abiotic and biotic constituents within it to understand short and long term effects of treatments *** review summarizes selected chemicals and organisms in these waters and their interactions to provide a holistic perspective on the physiochemical and microbial dynamics underpinning OSPW.

关键词： OSPW toxicants Reclamation Tailings ponds Remediation Microbial AOPs bioremediation

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Dissipation of chlorpyrifos, pendimethalin, and thiophanate-methyl pesticides in compost based-versus peat-moss based-biomixture of biobeds

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Waste Disposal and Sustainable Energy 2023年第4期5卷 461-470页

作者： Talaat N.M.El-Sebai Wafaa M.H.Zidan Alaa Marzouk Marion Divers Fabrice Martin-Laurent Agricultural Microbiology Dept.Agricultural and Biology Research Institute National Research CentreCairoEgypt Laboratory of Pesticide Analysis Agriculture Research CentreCairoEgypt Laboratory of Soil Microbiology National Institute of Agricultural ResearchDijonFrance

Biobed is a smart bioremediation system used to treat point-source pesticide *** is the main component of biobeds,and pesticide dissipation is affected by its *** study aimed to compare the effectiveness of compost-based(C)versus peat-moss-based(P)biomixtures of biobeds on tested pesticide *** concentrations(25,50,and 75 mg/kg)of chlorpyrifos,pendimethalin,and thiophanate methyl were added separately and as a mix to both biomixtures C and *** data showed the effect of biomixture type on the dissipation of the tested *** chlorpyrifos,its dissipation rate in biomixture P was more rapid than that in biomixture *** result was confirmed by the mineralization kinetic experiment,since 25%of the initial ^(14)C-chlorpyrifos concentration accumulated in the form ^(14)CO_(2) in biomixture P compared to only 14%in biomixture *** addition,the chlorpyrifos dissipation rate was influenced by the initial concentration when applied individually in biomixture *** contrast,biomixture C was more effective at pendimethalin dissipation than biomixture P,since>76%of pendimethalin was dissipated in biomixture C versus 67%in biomixture P at the same incubation *** thiophanate-methyl,the abilities of both biomixtures C and P were similar and less efficient than those of the other tested *** addition of the three tested pesticides to biomixture C only had a positive effect on both chlorpyrifos and thiophanate-methyl dissipation,while pendimethalin dissipation was similar when applied separately or as a *** activity was stimulated by the addition of separately or mixed pesticides to biomixtures C and P as measured by dehydrogenase activity.

关键词： Biopurification system Pesticides Contamination Point-source bioremediation Biomixture

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Effects of rhamnolipids on bacterial communities in a dioxin-contaminated soil and the gut of earthworms added to the soil

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Pedosphere 2023年第6期33卷 927-937页

作者： Bing XIA Dan HUANG Mao YE Hao QIU Hongfeng CHEN Keqiang ZHAO Rongliang QIU Rongrong YING Nanjing Institute of Environmental Sciences of the Ministry of Environmental Protection(NIES) Nanjing 210042China Research Academy of Environmental Sciences of Anhui Province Hefei 230071China College of Environmental and Resource Sciences Zhejiang UniversityHangzhou 310058China Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China Shanghai Jiao Tong University School of Environmental Science and EngineeringShanghai 200240China Guangdong Laboratory for Lingnan Modern Agriculture College of Natural Resources and EnvironmentSouth China Agricultural UniversityGuangzhou 510642China

The biosurfactants rhamnolipids and the “soil ecosystem engineers” earthworms are often used to remediate contaminated soils. However, the effects of rhamnolipids on earthworm intestinal flora and microbial community in soil containing earthworms are not clearly understood. In our study, a 21-d microcosm experiment was carried out to reveal the effects of rhamnolipids on microbial abundance, composition, and metabolism, as well as contaminant degradation capacity. Both rhamnolipids and earthworms had positive effects on soil bacteria. Rhamnolipid-amended soil(RT) showed higher bacterial abundance and metabolic activity than earthworm-amended soil(ET), while the improvement in bacterial composition and contaminant degradation capacity by rhamnolipids was lower than that by earthworms. Notably, these effects were further amplified by the combined treatment of rhamnolipids and earthworms(RET). Specifically, the bacterial abundance(log-transferred) increased from 9.5 copies g-1in the control with no addition to 10.3, 10.6, and 11.1 copies g-1in ET, RT, and RET, respectively. Compared to ET, the relative abundance of the dominant phylum, Proteobacteria, increased from 41.66% to 51.67% in RET,and more pollutant-degrading bacteria were also enriched in RET. Therefore, the increases in bacterial abundance and contaminant-degrading bacteria led to the following ranking of soil dioxin removal rate: RET(77.28%) > ET(59.83%) > RT(24.65%) > control(4.71%). Moreover, the addition of rhamnolipids enhanced the abundance of bacterial functional genes involved in metabolism and environmental information processing. In addition, the composition and diversity of bacteria in the gut of earthworms were conspicuously affected by rhamnolipids, and the relative abundance of Microbacterium and Shewanella increased significantly(P < 0.05). Therefore, this study revealed that rhamnolipids remarkably influenced the abundance, composition, and metabolism of the microbial community in earthworm g

关键词： bioremediation biosurfactant contaminant-degrading bacteria intestinal bacteria metabolic pathway metabolism microcosm experiment soil pollution

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A review on phorate persistence, toxicity and remediation by bacterial communities

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Pedosphere 2022年第1期32卷 171-183页

作者： Mohd ADAR Zahoor ABABA Garima KAUSHIK Department of Environmental Science School of Earth sciencesCentral University of RajasthanBandarSindriAjmer 305801India Biofertilizer Research Laboratory Division of Basic Science and HumanitiesWaduraSher-e-Kashmir University of Agricultural Sciences and TechnologySopore 193201India

Pesticides are an integral part in maintaining agriculture and horticultural productivity and play a vital role in meeting the increasing food, fiber, and fuel needs of the growing population. Globally, organophosphate pesticides(OPPs) are among the most common pesticides used due to their high proficiency and relatively low persistence in the environment. However, recent studies have reported problems due to pesticide use, e.g., phorate contamination of aquatic ecosystems(fresh and groundwater), sediments, fruits and vegetables, and forage crops. This review highlights many cases where phorate has been detected above its respective maximum residue limit values. Organophosphate pesticides, including phorate, have negative impacts on both the environment and human health. The ecological and public health concerns of recurrent pesticide utilization have encouraged the research related to environmental fate of *** is an effective, eco-friendly, and financially viable approach for the decontamination and degradation of toxic OPPs from the environment,compared to the costly, unecological, and time-consuming physicochemical approaches, which lead to the generation of byproducts of higher *** have recognized that a wide range of microbes, mainly bacteria, can degrade this extremely hazardous pesticide. Therefore, this review discusses the present pesticide scenarios, especially phorate contamination, its toxicity, biodegradation, and metabolic products via bacterial communities, both in India and globally. The latest and up-to-date literatures on the use, contamination, and bacterial application of phorate degradation are also summarized. This article offers national and international food safety organizations and public health authorities the ability to be involved in preventing the risks associated with the use of food and nutrition products contaminated with extremely toxic phorate pesticide. This article would also enable research

关键词： biodegradation bioremediation contamination organophosphate pesticide residue

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Remediation of polycyclic aromatic hydrocarbon-contaminated soils using microbes and nanoparticles: A review

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Pedosphere 2023年第1期33卷 93-104页

作者： Ritu PANWAR Jyoti MATHUR Department of Bioscience and Biotechnology Banasthali VidyapithRajasthan 304022India

Polycyclic aromatic hydrocarbon(PAH)pollution is a global concern because of their toxicity to environment and ecosystem,which induces adverse effects on plants,animals,and *** are mainly released from natural and anthropogenic activities,such as incomplete fuel combustion,leakages in oil pipelines,and the extensive use of pesticides;PAH contaminants include petroleum hydrocarbons(PHCs),halogenated hydrocarbons,chlorophenols,and *** using microorganisms such as bacteria and fungi is developing as an effective and promising technique to remediate PAHs from the *** to their remediation efficiency,this method is environmentally friendly and represents a novel approach for reducing the risk of PAHs to human health and the *** may be applied in bioremediation,and will not only induce fewer toxic effects but also reduce the effective overall time and costs *** article provides a summary of the application of nanomaterials,bacteria,and fungi to PAH remediation;we review and briefly discuss the structure,properties,sources,fate,toxicity,and remediation approaches involved in the remediation of PAH-polluted sites.

关键词： bioremediation microorganisms pesticides persistent organic pollutants petroleum hydrocarbons

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Integrating biochar and bacteria for sustainable remediation of metal-contaminated soils

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Biochar 2023年第1期5卷 1098-1116页

作者： Peng Ouyang Mathiyazhagan Narayanan Xiaojun Shi Xinping Chen Zhenlun Li Yongming Luo Ying Ma College of Resources and Environment Southwest UniversityChongqing 400716China Division of Research and Innovation Department of BiotechnologySaveetha School of EngineeringSaveetha Institute of Medical and Technical ScienceChennai 602105Tamil NaduIndia Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China

Due to anthropogenic activities,heavy metal(HM)pollution in soils has increased,resulting in severe ecological problems and posing a constant threat to human *** various remediation methods,bacterial remediation is a relatively clean,efficient,and minimally negative ***,bacterial agents face multiple environmental stresses,making them challenging to achieve long-lasting and stable restoration *** address this issue,supportive organic substances such as biochar can be added to the soil with *** to bibliometric studies,integrating biochar and bacteria is extensively researched and widely used for HM-contaminated soil *** integrating biochar and bacteria,heavy metals in the soil can be remediated,and soil conditions can be improved over *** can also better promote plant growth or contribute effectively to phytoremediation processes when assisted by ***,the remediation agents integrating biochar and bacteria are still some distance away from large-scale use because of their high cost and possible environmental ***,further discussion on the interaction between biochar and bacteria and the integration approach,along with their remediation efficiency and environmental friendliness,is needed to achieve sustainable remediation of HM-contaminated soils by integrating biochar and *** paper discusses the potential mechanisms of biochar-bacteria-metal interactions,current advancements in biochar-bacteria combinations for HM-contaminated soil treatment,and their application in sustainable remediation,analyzes the interaction between biochar and bacteria and compares the remediation effect of different ways and feedstocks to integrate biochar and ***,future directions of biochar-bacteria combinations are presented,along with evidence and strategies for improving their commercialization and implementation.

关键词： Biochar Heavy metals bioremediation Plant-beneficial bacteria Soil pollution

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