Biodegradation最新文献_第9页

Influence of growth substrate and contaminant mixtures on the degradation of BTEX and MTBE by Rhodococcus rhodochrous ATCC strain 21198 生长基质和污染物混合物对Rhodococcus rhodochrous ATCC菌株21198降解BTEX和MTBE的影响

IF 3.6 4区生物学

Biodegradation Pub Date : 2023-06-17 DOI: 10.1007/s10532-023-10037-2

Juliana M. Huizenga, Lewis Semprini

{"title":"Influence of growth substrate and contaminant mixtures on the degradation of BTEX and MTBE by Rhodococcus rhodochrous ATCC strain 21198","authors":"Juliana M. Huizenga, Lewis Semprini","doi":"10.1007/s10532-023-10037-2","DOIUrl":"10.1007/s10532-023-10037-2","url":null,"abstract":"<div><p>The degradation of the prevalent environmental contaminants benzene, toluene, ethylbenzene, and xylenes (BTEX) along with a common co-contaminant methyl tert-butyl ether (MTBE) by <i>Rhodococcus rhodochrous</i> ATCC Strain 21198 was investigated. The ability of 21198 to degrade these contaminants individually and in mixtures was evaluated with resting cells grown on isobutane, 1-butanol, and 2-butanol. Growth of 21198 in the presence of BTEX and MTBE was also studied to determine the growth substrate that best supports simultaneous microbial growth and contaminants degradation. Cells grown on isobutane, 1-butanol, and 2-butanol were all capable of degrading the contaminants, with isobutane grown cells exhibiting the most rapid degradation rates and 1-butanol grown cells exhibiting the slowest. However, in conditions where BTEX and MTBE were present during microbial growth, 1-butanol was determined to be an effective substrate for supporting concurrent growth and contaminant degradation. Contaminant degradation was found to be a combination of metabolic and cometabolic processes. Evidence for growth of 21198 on benzene and toluene is presented along with a possible transformation pathway. MTBE was cometabolically transformed to tertiary butyl alcohol, which was also observed to be transformed by 21198. This work demonstrates the possible utility of primary and secondary alcohols to support biodegradation of monoaromatic hydrocarbons and MTBE. Furthermore, the utility of 21198 for bioremediation applications has been expanded to include BTEX and MTBE.</p></div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"34 5","pages":"461 - 475"},"PeriodicalIF":3.6,"publicationDate":"2023-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4684824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of copper, arsenic and nickel on pyrite-based autotrophic denitrification 铜、砷和镍对黄铁矿自养反硝化作用的影响。

IF 3.1 4区生物学

Biodegradation Pub Date : 2023-04-28 DOI: 10.1007/s10532-023-10027-4

Maria F. Carboni, Sonia Arriaga, Piet N. L. Lens

{"title":"Effect of copper, arsenic and nickel on pyrite-based autotrophic denitrification","authors":"Maria F. Carboni, Sonia Arriaga, Piet N. L. Lens","doi":"10.1007/s10532-023-10027-4","DOIUrl":"10.1007/s10532-023-10027-4","url":null,"abstract":"<div><p>Pyritic minerals generally occur in nature together with other trace metals as impurities, that can be released during the ore oxidation. To investigate the role of such impurities, the presence of copper (Cu(II)), arsenic (As(III)) and nickel (Ni(II)) during pyrite mediated autotrophic denitrification has been explored in this study at 30 °C with a specialized microbial community of denitrifiers as inoculum. The three metal(loid)s were supplemented at an initial concentration of 2, 5, and 7.5 ppm and only Cu(II) had an inhibitory effect on the autotrophic denitrification. The presence of As(III) and Ni(II) enhanced the nitrate removal efficiency with autotrophic denitrification rates between 3.3 [7.5 ppm As(III)] and 1.6 [7.5 ppm Ni(II)] times faster than the experiment without any metal(loid) supplementation. The Cu(II) batches, instead, decreased the denitrification kinetics with 16, 40 and 28% compared to the no-metal(loid) control for the 2, 5 and 7.5 ppm incubations, respectively. The kinetic study revealed that autotrophic denitrification with pyrite as electron donor, also with Cu(II) and Ni(II) additions, fits better a zero-order model, while the As(III) incubation followed first-order kinetic. The investigation of the extracellular polymeric substances content and composition showed more abundance of proteins, fulvic and humic acids in the metal(loid) exposed biomass.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"35 1","pages":"101 - 114"},"PeriodicalIF":3.1,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10774168/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9362412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Association of Laccase from Bacillus cereus O2-B and Pseudomonas aeruginosa O1-P with the bio-degradation of polymers: an in vitro to in silico approach 蜡样芽孢杆菌O2-B和铜绿假单胞菌O1-P漆酶与聚合物生物降解的关系:体外到体内的方法

IF 3.6 4区生物学

Biodegradation Pub Date : 2023-04-14 DOI: 10.1007/s10532-023-10028-3

M Shafana Farveen, Thirumurthy Madhavan, Rajnish Narayanan

{"title":"Association of Laccase from Bacillus cereus O2-B and Pseudomonas aeruginosa O1-P with the bio-degradation of polymers: an in vitro to in silico approach","authors":"M Shafana Farveen, Thirumurthy Madhavan, Rajnish Narayanan","doi":"10.1007/s10532-023-10028-3","DOIUrl":"10.1007/s10532-023-10028-3","url":null,"abstract":"<div><p>Plastic accumulation has become a serious environmental threat. Mitigation of plastic is important to save the ecosystem of our planet. With current research being focused on microbial degradation of plastics, microbes with the potential to degrade polyethylene were isolated in this study. In vitro studies were performed to define the correlation between the degrading capability of the isolates and laccase, a common oxidase enzyme. Instrumental analyses were used to evaluate morphological and chemical modifications in polyethylene, which demonstrated a steady onset of the degradation process in case of both isolates, <i>Pseudomonas aeruginosa</i> O1-P and <i>Bacillus cereus</i> O2-B. To understand the efficiency of laccase in degrading other common polymers, in silico approach was employed, for which 3D structures of laccase in both the isolates were constructed via homology modeling and molecular docking was performed, revealing that the enzyme laccase can be exploited to degrade a wide range of polymers.</p><h3>Graphical abstract</h3>\u0000 <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 </div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"34 4","pages":"383 - 403"},"PeriodicalIF":3.6,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4559449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of ultra-violet light radiation on Scenedesmus vacuolatus growth kinetics, metabolic performance, and preliminary biodegradation study 紫外线辐射对空泡藻（Scenedesmus vacuolatus）生长动力学、代谢性能和初步生物降解研究的影响。

IF 3.1 4区生物学

Biodegradation Pub Date : 2023-04-13 DOI: 10.1007/s10532-023-10029-2

Stella B. Eregie, Isaac A. Sanusi, Gueguim E. B. Kana, Ademola O. Olaniran

{"title":"Effect of ultra-violet light radiation on Scenedesmus vacuolatus growth kinetics, metabolic performance, and preliminary biodegradation study","authors":"Stella B. Eregie, Isaac A. Sanusi, Gueguim E. B. Kana, Ademola O. Olaniran","doi":"10.1007/s10532-023-10029-2","DOIUrl":"10.1007/s10532-023-10029-2","url":null,"abstract":"<div><p>This study presents the effect of ultra-violet (UV) light radiation on the process kinetics, metabolic performance, and biodegradation capability of <i>Scenedesmus vacuolatus</i>. The impact of the UV radiation on <i>S. vacuolatus</i> morphology, chlorophyll, carotenoid, carbohydrates, proteins, lipid accumulation, growth rate, substrate affinity and substrate versatility were evaluated. Thereafter, a preliminary biodegradative potential of UV-exposed <i>S. vacuolatus</i> on spent coolant waste (SCW) was carried out based on dehydrogenase activity (DHA) and total petroleum hydrocarbon degradation (TPH). Pronounced structural changes were observed in <i>S. vacuolatus</i> exposed to UV radiation for 24 h compared to the 2, 4, 6, 12 and 48 h UV exposure. Exposure of <i>S. vacuolatus</i> to UV radiation improved cellular chlorophyll (chla = 1.89-fold, chlb = 2.02-fold), carotenoid (1.24-fold), carbohydrates (4.62-fold), proteins (1.44-fold) and lipid accumulations (1.40-fold). In addition, the 24 h UV exposed <i>S. vacuolatus</i> showed a significant increase in substrate affinity (1/Ks) (0.959), specific growth rate (µ) (0.024 h<sup>−1</sup>) and biomass accumulation (0.513 g/L) by 1.50, 2 and 1.9-fold respectively. Moreover, enhanced DHA (55%) and TPH (100%) degradation efficiency were observed in UV-exposed <i>S. vacuolatus</i>. These findings provided major insights into the use of UV radiation to enhance <i>S. vacuolatus</i> biodegradative performance towards sustainable green environment negating the use of expensive chemicals and other unfriendly environmental practices.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"35 1","pages":"71 - 86"},"PeriodicalIF":3.1,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10774200/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9283424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolation of cadmium-resistant microbial strains and their immobilisation of cadmium in soil 抗镉微生物菌株的分离及其对土壤中镉的固定化作用

IF 3.6 4区生物学

Biodegradation Pub Date : 2023-04-12 DOI: 10.1007/s10532-023-10026-5

Ruijuan Fan, Weixia Xie, Heqin Ma, Mengke Zhu, Kun Ma, Xingfu Yan

{"title":"Isolation of cadmium-resistant microbial strains and their immobilisation of cadmium in soil","authors":"Ruijuan Fan, Weixia Xie, Heqin Ma, Mengke Zhu, Kun Ma, Xingfu Yan","doi":"10.1007/s10532-023-10026-5","DOIUrl":"10.1007/s10532-023-10026-5","url":null,"abstract":"<div><p>Six cadmium (Cd)-resistant microbial strains were isolated and their ability to immobilise Cd<sup>2+</sup> in soil investigated. Cd-1, Cd-2, Cd-5, and Cd-6 were identified as <i>Stenotrophomonas</i> sp., Cd-3 as <i>Achromobacter</i> sp., and Cd-7 as <i>Staphylococcus</i> sp. The six strains showed a wide adaptation range for salinity and a strong tolerance to Cd<sup>2+</sup>. The effects of the initial Cd<sup>2+</sup> concentration (1–100 mg/L), duration (18–72 h), temperature (10–40 °C), and pH (5.0–9.0) on the efficiency of Cd<sup>2+</sup> removal were analysed. The results revealed that the Cd<sup>2+</sup> removal rate was higher at an initial Cd<sup>2+</sup> concentration of 5–100 mg/L than at 1 mg/L. The maximum Cd<sup>2+</sup> removal effect was at a culture duration of 36 h, temperature of 10–35 °C, and pH of 5.0–7.0. X-ray diffraction (XRD) analysis revealed that the Cd<sup>2+</sup> was immobilised by <i>Stenotrophomonas</i> sp. Cd-2 and <i>Staphylococcus</i> sp. Cd-7 through bio-precipitation. X-ray photoelectron spectroscopy (XPS) revealed that the Cd<sup>2+</sup> was adsorbed by <i>Stenotrophomonas</i> sp. Cd-2, <i>Achromobacter</i> sp. Cd-3, and <i>Staphylococcus</i> sp. Cd-7. Fourier transform infrared spectroscopy (FTIR) analysis revealed that the isolates reacted with the Cd<sup>2+</sup> mainly through the O–H, protein N–H, C–N, lipid C–H, fatty acid COO, polysaccharide C–O, P–O, and other functional groups, as well as with lipid molecules on the cell wall surfaces. Scanning electron microscopy (SEM) analysis revealed that there was little difference in the cells after Cd<sup>2+</sup> treatment. The results of the soil remediation experiments indicated that the toxicity of Cd in soil could be effectively reduced using certain strains of microbe.</p><h3>Graphical abstract</h3>\u0000 <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 </div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"34 5","pages":"445 - 459"},"PeriodicalIF":3.6,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4784436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasticizer phthalate esters degradation with a laccase from Trametes versicolor: effects of TEMPO used as a mediator and estrogenic activity removal 用漆酶降解紫苔菌的增塑剂邻苯二甲酸酯:TEMPO作为介质和雌激素活性去除的影响

IF 3.6 4区生物学

Biodegradation Pub Date : 2023-04-05 DOI: 10.1007/s10532-023-10030-9

Dan Wang, Ruofei Zhu, Jiangfei Lou, Nawon Baek, Xuerong Fan

{"title":"Plasticizer phthalate esters degradation with a laccase from Trametes versicolor: effects of TEMPO used as a mediator and estrogenic activity removal","authors":"Dan Wang, Ruofei Zhu, Jiangfei Lou, Nawon Baek, Xuerong Fan","doi":"10.1007/s10532-023-10030-9","DOIUrl":"10.1007/s10532-023-10030-9","url":null,"abstract":"<div><p>Phthalate esters (PAEs) are toxic and persistent chemicals that are ubiquitous in the environment and have attracted worldwide attention due to their threats to the environment and human health. Dimethyl phthalate (DMP) is a relatively simple structure and one of the most observed PAEs in the environment. This study investigated the degradation of the DMP using <i>Trametes versicolor</i> laccase and its laccase-mediator systems. The degradation effect of laccase alone on DMP was poor, while the laccase-mediator systems can effectively enhance the degradation efficiency. Within 24 h, 45% of DMP (25 mg/L) was degraded in the presence of 0.8 U/mL laccase and 0.053 mM 2, 2, 6, 6-tetramethylpiperidine-1-oxyl (TEMPO). A certain concentration (1 mM) of metal ions Al<sup>3+</sup>, Cu<sup>2+</sup> or Ca<sup>2+</sup> can positively promote DMP degradation with the laccase-TEMPO system. Moreover, the structure of PAEs also had a great influence on the degradation efficiency. Higher degradation efficiencies were observed when incubating PAEs with short alkyl side chains by the laccase-TEMPO system compared to that with long alkyl side chains. Additionally, the branched-chain PAEs had a better degradation effect than the straight-chain. The estrogenic activity of the DMP solution after reaction was much smaller than that of the original solution. Finally, transformation products ortho-hydroxylated DMP and phthalic acid were identified by GC–MS and the possible degradation pathway was proposed. This study verifies the feasibility of the laccase-TEMPO system to degrade PAEs and provides a reference for exploring more potential value of laccase.</p></div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"34 5","pages":"431 - 444"},"PeriodicalIF":3.6,"publicationDate":"2023-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4197858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A sustainable approach to enhance heavy hydrocarbons removal in landfarming treatment 一种在土地耕作处理中加强重碳氢化合物去除的可持续方法

IF 3.6 4区生物学

Biodegradation Pub Date : 2023-03-25 DOI: 10.1007/s10532-023-10025-6

Camilla Di Marcantonio, Agostina Chiavola, Alessandra Noce, Elisabetta Straccamore, Andrea Giannuzzi, Jacopo Jirillo, Francesco Gallo, Maria Rosaria Boni

{"title":"A sustainable approach to enhance heavy hydrocarbons removal in landfarming treatment","authors":"Camilla Di Marcantonio, Agostina Chiavola, Alessandra Noce, Elisabetta Straccamore, Andrea Giannuzzi, Jacopo Jirillo, Francesco Gallo, Maria Rosaria Boni","doi":"10.1007/s10532-023-10025-6","DOIUrl":"10.1007/s10532-023-10025-6","url":null,"abstract":"<div><p>The present study aimed to evaluate the best strategy to enhance the degradation rate of heavy petroleum hydrocarbons (HPH) contaminated soil in a landfarming plant. Samples of real contaminated soil, further spiked with HPH, were treated in mesocosm reactors simulating the landfarming system. One reactor was operated without any modification compared to the real landfarming plant. The other three reactors were operated with different strategies to improve the removal rate: biostimulation (BS) through the addition of nitrogen and phosphorus; bioaugmentation (BA) with the inoculation of sludge produced in the treatment of the process water from the oil re-fining plant of the same industrial area; combination of biostimulation and bioaugmentation (BAS). The biostimulation (BS) was the most effective strategy, leading to a reduction of the remediation time by 35% as compared to the traditional treatment. Bioaugmentation (BA) also provided positive effects leading to a reduction of the remediation time by 24%; its performance improved further when the addition of sludge was combined with the increase of phosphorous (BAS). Therefore, the key tool was represented by the phosphorous availability, whereas the application of sludge was most useful to provide waste with a new possibility of reuse, thus fulfilling the principles of the circular economy. The final characterization showed that the treated soil was suitable for reuse in industrial areas according to the legislation in force.</p></div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"34 5","pages":"417 - 430"},"PeriodicalIF":3.6,"publicationDate":"2023-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10532-023-10025-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4979398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent advances in simultaneous nitrification and denitrification for nitrogen and micropollutant removal: a review 同时硝化反硝化除氮及微污染物研究进展综述

IF 3.6 4区生物学

Biodegradation Pub Date : 2023-03-10 DOI: 10.1007/s10532-023-10015-8

Susan N. James, Arya Vijayanandan

引用次数: 5

Identification of two possible metabolic pathways responsible for the biodegradation of 3, 5, 6-trichloro-2-pyridinol in Micrococcus luteus ML 黄体微球菌生物降解3,5,6 -三氯-2-吡啶醇的两条可能代谢途径的鉴定

IF 3.6 4区生物学

Biodegradation Pub Date : 2023-03-06 DOI: 10.1007/s10532-023-10023-8

Caixu Yue, Nan Jia, Xueru Lv, Shenghui Wang

{"title":"Identification of two possible metabolic pathways responsible for the biodegradation of 3, 5, 6-trichloro-2-pyridinol in Micrococcus luteus ML","authors":"Caixu Yue, Nan Jia, Xueru Lv, Shenghui Wang","doi":"10.1007/s10532-023-10023-8","DOIUrl":"10.1007/s10532-023-10023-8","url":null,"abstract":"<div><p>3, 5, 6-Trichloro-2-pyridinol (TCP) is a metabolite of the insecticide chlorpyrifos and the herbicide triclopyr, and it is higher toxic than the parent compounds. Microbially-mediated mineralization appears to be the primary degradative pathway and the important biological process of detoxification. However, little information is available on TCP complete metabolic pathways and mechanisms. In this study, the degradation of TCP was studied with a novel strain <i>Micrococcus luteus</i> ML isolated from a stable TCP degrading microbiota. Strain ML was capable of degrading 61.6% of TCP (50 mg/L) and 35.4% of chlorpyrifos (50 mg/L) at 24 h and 48 h under the optimal conditions (temperature: 35 °C; pH: 7.0), respectively. It could also degrade 3, 5-dichloro-2-pyridone, 6-chloropyridin-2-ol, 2-hydroxypyridine and phoxim when provided as sole carbon and energy sources. Seven TCP intermediate metabolites were detected in strain ML and two possible degradation pathways of TCP were proposed on the basis of LC–MS analysis. Both the hydrolytic-oxidative dechlorination pathway and the denitrification pathway might be involved in TCP biodegradation by strain ML. To the best of our knowledge, this is the first report on two different pathways responsible for TCP degradation in one strain, and this finding also provides novel information for studying the metabolic mechanism of TCP in pure culture.</p></div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"34 4","pages":"371 - 381"},"PeriodicalIF":3.6,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10532-023-10023-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4589767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Enhancement of biogranules development using magnetized powder activated carbon 磁化粉末活性炭促进生物颗粒的形成

IF 3.6 4区生物学

Biodegradation Pub Date : 2023-02-25 DOI: 10.1007/s10532-023-10016-7

Ahmad Hanis Omar, Khalida Muda, Armstrong Ighodalo Omoregie, Zaiton Abdul Majid, Nur Shahidah Binti Aftar Ali, Farhan Mohd Pauzi

{"title":"Enhancement of biogranules development using magnetized powder activated carbon","authors":"Ahmad Hanis Omar, Khalida Muda, Armstrong Ighodalo Omoregie, Zaiton Abdul Majid, Nur Shahidah Binti Aftar Ali, Farhan Mohd Pauzi","doi":"10.1007/s10532-023-10016-7","DOIUrl":"10.1007/s10532-023-10016-7","url":null,"abstract":"<div><p>Biogranulation has emerged as a viable alternative biological wastewater treatment approach because of its strong biodegradability potential, toxicity tolerance, and biomass retention features. However, this process requires a long duration for biogranules formation to occur. In this study, magnetic powder activated carbon (MPAC) was used as support material in a sequencing batch reactor to enhance biogranules development for wastewater treatment. Two parallel SBRs (designated R1 and R2) were used, with R1 serving as a control without the presence of MPAC while R2 was operated with MPAC. The biodegradability capacity and biomass properties of MPAC biogranules were compared with a control system. The measured diameter of biogranules for R1 and R2 after 8 weeks of maturation were 2.2 mm and 3.4 mm, respectively. The integrity coefficient of the biogranules in R2 was higher (8.3%) than that of R1 (13.4%), indicating that the addition of MPAC improved the structure of the biogranules in R2. The components of extracellular polymeric substances were also higher in R2 than in R1. Scanning electronic microscopy was able to examine the morphological structures of the biogranules which showed there were irregular formations compacted together. However, there were more cavities situated in R1 biogranules (without MPAC) when compared to R2 biogranules (with MPAC). Dye removal reached 65% and 83% in R1 and R2 in the post-development stage. This study demonstrates that the addition of MPAC could shorten and improve biogranules formation. MPAC acted as the support media for microbial growth during the biogranulation developmental process.</p></div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"34 3","pages":"235 - 252"},"PeriodicalIF":3.6,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5331477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1