Environmental Quality Management最新文献

筛选
英文 中文
Role of heavy metals in species composition of moss: An insight study in contaminated mining sites of Eastern India 重金属在苔藓物种组成中的作用:印度东部受污染矿区的深入研究
IF 1.5
Environmental Quality Management Pub Date : 2024-05-31 DOI: 10.1002/tqem.22272
Swayam Prakash Nanda, Bibhu Prasad Panda, Kishore C. S. Panigrahi, Abanti Pradhan
{"title":"Role of heavy metals in species composition of moss: An insight study in contaminated mining sites of Eastern India","authors":"Swayam Prakash Nanda,&nbsp;Bibhu Prasad Panda,&nbsp;Kishore C. S. Panigrahi,&nbsp;Abanti Pradhan","doi":"10.1002/tqem.22272","DOIUrl":"https://doi.org/10.1002/tqem.22272","url":null,"abstract":"<p>Mining activities are significant contributors to heavy metal pollution in the environment, which poses risks to both the natural ecosystem and human health. Thus, the purpose of this study is to determine the extent to which mining-affected regions of Eastern India have undergone heavy metal-induced changes to ecosystem composition, specifically in soil heavy metal contamination and moss diversity. The relationship between the abundance of moss species and the heavy metal content of the soil in the study regions has been studied. A total of 48 soil samples were taken throughout the study areas, and 41 moss species spanning 14 families were identified. The identification process of mosses in sampling sites involves meticulously scrutinizing their morphological characteristics. Pottiaceae and Fissidentaceae were the most accountable families at the species level. The Shannon diversity index revealed variations in moss diversity among the regions. The concentrations of heavy metals were determined using AAS (Systronics, model No. 816), chromium (Cr), iron (Fe), and manganese (Mn) were the most noticeable metal in SP1 (Chromite mining areas in Jajpur), SP2(Iron mining area in Keojhar's Joda-Barbil), and SP3(manganese mining areas in Sundargarh's Koira-Joda), respectively. The metal concentrations were highest in the storage area and lowest at 1–3 km. Correlation analysis showed positive relationships among the metals and negative relationships between metals and mosses. Moss family, like Bruchiaceae, exhibited significant negative correlations with specific metals like Cr. These research findings help to understand the effects of mining on soil contamination, and moss diversity.</p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Physicochemical and heavy metal pollution level in Hindon River ecosystem: An implication to public health risk assessment 兴敦河生态系统的物理化学和重金属污染水平:对公共健康风险评估的影响
IF 1.5
Environmental Quality Management Pub Date : 2024-05-31 DOI: 10.1002/tqem.22263
Bhanu Pratap Singh, Palas Samanta, Moharana Choudhury, Piyush Gupta, Utkarsh Chadha, Tolera Kuma Eticha
{"title":"Physicochemical and heavy metal pollution level in Hindon River ecosystem: An implication to public health risk assessment","authors":"Bhanu Pratap Singh,&nbsp;Palas Samanta,&nbsp;Moharana Choudhury,&nbsp;Piyush Gupta,&nbsp;Utkarsh Chadha,&nbsp;Tolera Kuma Eticha","doi":"10.1002/tqem.22263","DOIUrl":"https://doi.org/10.1002/tqem.22263","url":null,"abstract":"<p>The study was conducted to determine heavy metal contamination and physicochemical parameters in Hindon River's water. The parameters evaluated included cadmium (Cd), copper (Cu), chromium (Cr), iron (Fe), manganese (Mn), zinc (Zn), and lead (Pb), as well as pH, electrical conductivity (EC), turbidity (TUR), total dissolved solids (TDS), total hardness (TH), total alkalinity (TA), dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), chloride (Cl<sup>−</sup>), calcium (Ca), sulfate (<span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mtext>SO</mtext>\u0000 <msup>\u0000 <mn>4</mn>\u0000 <mrow>\u0000 <mn>2</mn>\u0000 <mo>−</mo>\u0000 </mrow>\u0000 </msup>\u0000 </msub>\u0000 <annotation>$ {text{SO}}_{{4}^{2-}} $</annotation>\u0000 </semantics></math>) and nitrate (<span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mtext>NO</mtext>\u0000 <msup>\u0000 <mn>3</mn>\u0000 <mo>−</mo>\u0000 </msup>\u0000 </msub>\u0000 <annotation>$ {text{NO}}_{{3}^{-}} $</annotation>\u0000 </semantics></math>). The findings showed the distribution of metals in river water. Some of the values of Cd, Cu, Cr, Fe, Mn, Zn, and Pb in surface water were above the standards set by the Bureau of Indian Standards (BIS). The mean concentrations of physicochemical parameters in surface water sometimes exceeded the BIS standards due to untreated effluent discharge. All the Water Quality Index (WQI) values were above 100; therefore, the water was unsuitable for human consumption. The heavy metal pollution index (HPI) showed that Station 1 (S1) is the most polluted, followed by the S3 and S5. Multivariate statistical analysis showed that most heavy metals (HMs) in river water originated from artificial or anthropogenic sources, that is, human sources. The calculated hazard quotient (HQ) and hazard index (HI) showed that the oral ingestion route could be dangerous to humans (both adults and children) since the HQ and HI values were higher than the acceptable limits (HQ &gt; 1). Dermal exposure assessment showed that the S1 was more dangerous to children's and adults' health than the S3 and S5. This trend showed that the Hindon River was polluted due to many untreated industrial effluents being discharged. The research highlights the pollution level in the Hindon River, and there is a need for proper monitoring and control to maintain the sustainability of the river ecosystem.</p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/tqem.22263","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of land use and land cover change on the stream water quality in Limbe I municipality, Cameroon 土地利用和土地覆盖变化对喀麦隆林贝第一市河流水质的影响
IF 1.5
Environmental Quality Management Pub Date : 2024-05-29 DOI: 10.1002/tqem.22254
Betelhem Asmare, Anyinkeng Neculina, Alemayehu Wubie, Awo Miranda Egbe, Djouego Sob Charleine, Fonge Beatrice Ambo
{"title":"The impact of land use and land cover change on the stream water quality in Limbe I municipality, Cameroon","authors":"Betelhem Asmare,&nbsp;Anyinkeng Neculina,&nbsp;Alemayehu Wubie,&nbsp;Awo Miranda Egbe,&nbsp;Djouego Sob Charleine,&nbsp;Fonge Beatrice Ambo","doi":"10.1002/tqem.22254","DOIUrl":"https://doi.org/10.1002/tqem.22254","url":null,"abstract":"<p>Inland aquatic ecosystems cover 0.1%–3.0% of Earth's surface. They provide different ecosystem services to the area, such as drinking water, transportation, and hydropower generation. However, increasing land use changes threaten their ecological integrity. This study aims to assess land use and land cover change and their impact on stream water quality in Limbe I municipality. The study was conducted in the rainy season, with sampling points chosen based on anthropogenic impacts. Hanna multi-probe model number HI9829 was used for in-situ measurements. The research detects and presents changes in the vegetation cover between three LULC maps (1990, 2010, and 2021). The result suggested that over the last 31 years, vegetation cover decreased by 8.1, 4.8, and 10.6 hectares, respectively. The settlement expanded by 23.5 hectares in the years 1990–2021. In situ measurements, temperature ranged from 23 to 25.8°C; pH, 8–9.4; DO, 1.0–5.9 mg/L; turbidity, 12.4–449.5 NTU; phosphorus, 1–3.4 mg/L. Iron ranges from 0.39 to 0.49 mg/L; cadmium from 0.025 to 0.03 mg/L; and lead from 0.07 to 0.15 mg/L. The heavy metal levels exceed the World Health Organization's acceptable limits for recreational water. The study indicated that the water quality was poor for swimming and aesthetic uses. Total bacteria count ranges from 8500 to 41,000 cfu/mL; total coliforms, 720–6400 cfu/mL; <i>Escherichia coli</i>, 65–300 cfu/mL; and salmonella, 1–46 cfu/mL. The water's bacteriological load indicates high fecal contamination and exceeds the World Health Organization's drinking water limit. LUCC has affected the physico-chemical and bacteriological quality of the stream water. Hence, the stream needs continuous monitoring of the physico-chemical and biological indicators to safeguard the aquatic ecosystem's environment and public health.</p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anaerobic membrane bioreactor to remove pesticides and pharmaceuticals from wastewater: A bibliometric review 厌氧膜生物反应器去除废水中的农药和药物:文献计量学综述
IF 1.5
Environmental Quality Management Pub Date : 2024-05-29 DOI: 10.1002/tqem.22261
Marcos Henrique Gomes Ribeiro, Maria Cristina de Almeida Silva, Antônio Domingues Benetti
{"title":"Anaerobic membrane bioreactor to remove pesticides and pharmaceuticals from wastewater: A bibliometric review","authors":"Marcos Henrique Gomes Ribeiro,&nbsp;Maria Cristina de Almeida Silva,&nbsp;Antônio Domingues Benetti","doi":"10.1002/tqem.22261","DOIUrl":"https://doi.org/10.1002/tqem.22261","url":null,"abstract":"<p>With the development of state-of-the-art analytical methods, new compounds have been detected in water and sewage. Due to their diverse and complex nature, these compounds have been classified as contaminants of emerging concern (CEC). Among the CEC, there are products of pharmaceutical origin and pesticides. Due to the damage caused by these contaminants to human health and the environment, there is a need to develop technologies for their removal in wastewater treatment. An anaerobic membrane bioreactor (AnMBR) is a technology that can potentially remove emerging compounds by combining biological treatment associated with membrane filtration. Thus, this article mapped literature describing the use of AnMBR for removing drugs and pesticides through a bibliometric review. A relatively low number of publications related to this subject was observed in the last 10 years. Most of the research has been done in the Middle East, South, and Southeast Asia. The main themes addressed by the articles were the treatment of drugs, bacteria, and antibiotic-resistant genes. In particular, research on the removal of pesticides by AnMBR was scarce.</p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effective nutrient removal from aquaculture wastewater utilizing an indoor nutrient film technique hydroponic system 利用室内营养膜技术水培系统有效去除水产养殖废水中的营养物质
IF 1.5
Environmental Quality Management Pub Date : 2024-05-29 DOI: 10.1002/tqem.22262
M. Rajalakshmi, K. Gunasekaran
{"title":"Effective nutrient removal from aquaculture wastewater utilizing an indoor nutrient film technique hydroponic system","authors":"M. Rajalakshmi,&nbsp;K. Gunasekaran","doi":"10.1002/tqem.22262","DOIUrl":"https://doi.org/10.1002/tqem.22262","url":null,"abstract":"<p>Aquaculture wastewater treatment must remove nutrients to prevent eutrophication of receiving waters and to allow for possible re-use of the treated water. This study aims to evaluate the shoot and root growth of crops produced in Nutrient Film Technique hydroponic systems and treat aquaculture wastewater using phytoremediation. The average physico-chemical parameters of the aquaculture wastewater during the study period were pH 6–6.4, temperature 25°C–27°C, EC 0.7–0.8 mS/cm, and total dissolved solids (420–560 ppm). The operating conditions of hydroponic treatment units were hydraulic loading rate of 857.28 m/day, hydraulic retention time of 0.3 h, organic loading rate of 12567.8 Ibs-BOD<sub>5</sub>/ft^2/day (BOD<sub>5</sub> is 5 – day Biochemical Oxygen Demand) and flow rate of 54 L/h. The study found that the average elimination efficiency of nitrate-nitrogen in aquaculture wastewater treatment varied from 78.28% by Money plants (<i>Epiprennum aureum</i>), 71% by Crotons (<i>Codiaeum varigatum</i>), 70.25% by Arrowhead plants (<i>Syngonium podophyllum</i>), 67.25% by Purple Heart (<i>Tradescantia pallida</i>), 68.62% by for Spinach (<i>Spinacea oleracia</i>), and 42.85% by Brinjal plants (<i>Solanum melongena</i>). The average removal effectiveness of BOD<sub>5</sub> varied from 71.07% by Money plants (<i>Epiprennum aureum</i>), 68.62% by Crotons (<i>Codiaeum varigatum</i>), 78% by Arrowhead plants (<i>Syngonium podophyllum</i>), 72% by Purple Heart (<i>Tradescantia pallida</i>), 68% by Spinach (<i>Spinacea oleracia</i>), and 70% by Brinjal plants (<i>Solanum melongena</i>). Thus, environmentally friendly and economically advantageous method for reducing and removing nitrate-nitrogen and BOD<sub>5</sub> from aquaculture effluent is hydroponic phytoremediation.\u0000\u0000 </p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detection and characterization of micro- and nano-plastics in wastewater: Current status of preparatory & analytical techniques 废水中微塑料和纳米塑料的检测与表征:制备和分析技术的现状
IF 1.5
Environmental Quality Management Pub Date : 2024-05-29 DOI: 10.1002/tqem.22267
Nilanjana Saha, Abhilasha Shourie
{"title":"Detection and characterization of micro- and nano-plastics in wastewater: Current status of preparatory & analytical techniques","authors":"Nilanjana Saha,&nbsp;Abhilasha Shourie","doi":"10.1002/tqem.22267","DOIUrl":"https://doi.org/10.1002/tqem.22267","url":null,"abstract":"<p>Micro- and nano-plastics (MNPs) are ubiquitous emerging pollutants that have gained global traction due to their persistent nature and potential risks to the environment and human health. The physico-chemical properties of MNPs such as size, shape, density, surface charge and hydrophobicity are quite different from macro-plastics, which render them unique behavior exemplified by high rate of diffusion, high mobility, easy uptake by organisms, high toxicity, and potential of bioaccumulation. Human exposure to MNPs causes serious health impacts including apoptosis, necrosis, inflammation, oxidative stress, metabolic disorders, and hampered immune responses. The hazardous nature and high persistence of MNPs in the environment necessitates accelerated studies focused upon their detection, quantification, impact analysis, and risk assessment. All kinds of wastewaters whether municipal, agricultural, or industrial, consist of significant loads of MNPs and act as secondary source of MNP pollution in groundwater and soil. Wastewater is highly complex in composition and there are several impediments in the accurate detection and identification of MNPs in this matrix owing to the in-efficient sampling methods, lack of standardized methodologies, and non-reproducibility of data. This review provides an overview of currently available techniques for sampling, detection, identification, and characterization of MNPs in wastewater. A critical commentary on the challenges and limitations of these techniques has been given and strategic combinatorial methods have been suggested for efficient and reliable MNP analysis in wastewater samples. The article also highlights novel sensor-based methods enabling rapid and accurate detection of MNPs in wastewater.</p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The role of membrane filtration in wastewater treatment 膜过滤在废水处理中的作用
IF 1.5
Environmental Quality Management Pub Date : 2024-05-27 DOI: 10.1002/tqem.22251
Eman Mansor, Heba abdallah, Ahmed M. Shaban
{"title":"The role of membrane filtration in wastewater treatment","authors":"Eman Mansor,&nbsp;Heba abdallah,&nbsp;Ahmed M. Shaban","doi":"10.1002/tqem.22251","DOIUrl":"https://doi.org/10.1002/tqem.22251","url":null,"abstract":"<p>Water is vital for the sustainable growth of human communities. Due to the greatest population and significant economic development, demands on water and purification have significantly risen. Classical wastewater treatment procedures have made some progress over the years in purifying effluents for disposal, but they fall lacking in the way they deeply control emerging harmful substances. The potential to reuse treated wastewater for home, agricultural, and industrial needs depends on breakthroughs in purifying technologies. One of the most recent breakthroughs to be implemented effectively in reducing contaminants to desirable levels is membrane technology. Nanofiltration, microfiltration, reverse osmosis, ultrafiltration, and membrane bioreactors are examples of widely utilized membrane processes depending on features such as size or charge. Over traditional treatment, membrane technology offers various benefits. This review article discusses a number of membrane-related topics, including membrane categorizing, application in various fields, benefits, and drawbacks. Furthermore, offers an outlook of the filtering membranes that will be used in the future. Smart membranes have gained interest because of their tunable permeability and selectivity characteristics. Technological advancements in the media that are utilized in activated growth membrane bioreactors. Modified interfacial polymerization approaches have been investigated in addition to adsorptive ultrafiltration mixed matrix membranes to enhance the performance of the polyamide thin-film composite and thin-film nanocomposite membranes.</p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141537065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Graphene oxide dots-loaded chitin flask: A sustainable adsorbent for separating multiple dyes from water 氧化石墨烯点负载甲壳素瓶:从水中分离多种染料的可持续吸附剂
IF 1.5
Environmental Quality Management Pub Date : 2024-05-24 DOI: 10.1002/tqem.22249
Priyanka Priyadarsini Mishra, Pratik Das, Sukarna Paul, Piyali Das, Suvendu Manna, Piyali Basak, Nigamananda Das, Ajaya Kumar Behera
{"title":"Graphene oxide dots-loaded chitin flask: A sustainable adsorbent for separating multiple dyes from water","authors":"Priyanka Priyadarsini Mishra,&nbsp;Pratik Das,&nbsp;Sukarna Paul,&nbsp;Piyali Das,&nbsp;Suvendu Manna,&nbsp;Piyali Basak,&nbsp;Nigamananda Das,&nbsp;Ajaya Kumar Behera","doi":"10.1002/tqem.22249","DOIUrl":"10.1002/tqem.22249","url":null,"abstract":"<p>This research endeavors to comprehensively explore the sorption dynamics of dyes from aqueous solutions utilizing a graphene oxide-chitin (GO-chitin) biosorbent. The investigation systematically evaluates the influence of key parameters, including temperature, pH, duration of contact, and initial dye doses, on the sorption efficiency of the biosorbent. Results obtained indicated that at acidic pH range, the dye removal efficacy was more than 80% for methyl orange and Remazol Brilliant Blue. Maximum removal efficacy was achieved within the 30 min of adsorption studies. Notably, the study underscores the remarkable adsorption capacity of GO-chitin, varies in the range of 75% and 95%, for all three dyes, positioning it as a highly promising material for the remediation of polluted aquatic environments. The adsorption follows pseudo-second-order kinetics and Freundlich isotherm. These findings contribute valuable insights into the potential application of GO-chitin as an effective biosorbent in the context of wastewater treatment, emphasizing its role in addressing environmental challenges associated with dye contamination in aqueous systems.</p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141100906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Removal of carcinogenic chromium(VI) from effluent of electroplating industry using adsorptive separation 利用吸附分离法去除电镀工业废水中的致癌铬(VI)
IF 1.5
Environmental Quality Management Pub Date : 2024-05-24 DOI: 10.1002/tqem.22260
Vinod D. Pakhale, Parag R. Gogate
{"title":"Removal of carcinogenic chromium(VI) from effluent of electroplating industry using adsorptive separation","authors":"Vinod D. Pakhale,&nbsp;Parag R. Gogate","doi":"10.1002/tqem.22260","DOIUrl":"10.1002/tqem.22260","url":null,"abstract":"<p>The wastewater from an electroplating industry contains chromium VI which is highly carcinogenic at a typical level of 21.5 to 47 mg L<sup>−1</sup> which should be reduced to acceptable value of 0.05 mg L<sup>−1</sup> for the water to be suitable for drinking purpose. In this study, Tulsion A23 resin was applied as an adsorbent for successful removal of Cr(VI), also dealing with understanding the effect of various parameters on extent of removal of the contaminant. It was elucidated that contact time of 120 min is required for the equilibrium and the optimum pH value was 5 and the optimum resin loading was 4 g L<sup>−1</sup> at which 97% Cr(VI) removal was observed. Different adsorption isotherm models were applied and it was elucidated that Langmuir model was the best fit with <i>R</i><sup>2</sup> as 0.99. In the case of kinetic study, pseudo-second order model was best fitted with higher <i>R</i><sup>2</sup> value. The regeneration of the resin was performed using 3 M NaOH and it was shown that after the three cycles of regeneration, the resin showed 82% Cr(VI) removal. Overall, successful application of Tulsion A23 resin was demonstrated for the removal of Cr(VI) from real effluent for the first time.</p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141101451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unleaded agriculture: Myth to reality by wetland microbial flora 无铅农业:湿地微生物菌群从神话到现实
IF 1.5
Environmental Quality Management Pub Date : 2024-05-24 DOI: 10.1002/tqem.22259
Sanjana Ghosh, Arup Kumar Mitra, Sudeshna Shyam Choudhury, Ayan Chandra
{"title":"Unleaded agriculture: Myth to reality by wetland microbial flora","authors":"Sanjana Ghosh,&nbsp;Arup Kumar Mitra,&nbsp;Sudeshna Shyam Choudhury,&nbsp;Ayan Chandra","doi":"10.1002/tqem.22259","DOIUrl":"https://doi.org/10.1002/tqem.22259","url":null,"abstract":"<p>Wetlands, refer to the confluence with regards to land and water having a rich biological diversity with multiple purpose. As per the Ramsar Convention, framed in August 2002, East Kolkata Wetlands have been considered to be of global significance. Although inappropriate supervision of these wetlands, has led to the gradual deterioration of this wetland. In this present study, the soil sample was collected from these reclaimed agricultural wetlands of Chowbaga area, of East Kolkata areas with coordinates of 22.5296°N, 88.4207°E. The predominant or lingering bacterial flora was isolated from the soil surrounding the rhizospheric region of <i>Cucurbita</i> sp. and <i>Zea mays</i> and their plant growth promotion properties of the lingering bacterial flora were analyzed. These plant growth promoting rhizobacteria (PGPR) included some species of <i>Bacillus</i> sp. that could augment plant growth by different methodologies like nitrogen fixation, phosphate solubilization, phytohormone synthesis, and siderophore production. One of the bacterial isolates DPP(C) showed highest ability of siderophore production of 37.89% at 48 hours, whereas DCP(A) showed better capability in IAA production of 56.785 μg/mL than rest of the bacterial isolates. These reclaimed agricultural lands were found to have very high quantities of heavy metals, especially lead. All the bacterial isolates, were found to have great potential in lead mitigation, whereby they could adsorb up to 8.28% of lead. Some studies have shown the capability of microbial degradation for bioremediation of organic forms of lead and thereby can be removed from agricultural field for longer period of time. The prospective potential use of PGPR has gradually escalated, since it is one of the best substitutes against the constant usage of chemical fertilizers as well as pesticides. The use of these PGPR is one of the most reliable methods for ensuring sustainable agriculture. Furthermore, in future, the PGPR population will be correlated with the nutrient availability and productivity of the plants.</p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信