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Low-Cost Sustainable Technologies for the Production of Clean Drinking Water—A Review

Journal of Environmental Protection 2014年第1期5卷 42-53页

作者： Sharmin Zaman Sabina Yeasmin Yasuhiro Inatsu Chiraporn Ananchaipattana mohammad latiful bari Department of Biology Faculty of Science and Technology Rajamangala University of Technology Thanyaburi Thailand Department of Genetic Engineering and Biotechnology University of Dhaka Dhaka Bangladesh Food Analysis and Research Laboratory Center for Advanced Research in Sciences University of Dhaka Dhaka Bangladesh National Food Research Institute National Agriculture and Food Research Organization Tsukuba-shi Japan

Water has always been an important and life-sustaining drink to humans and is essential to the survival of all known organisms. Over large parts of the world, humans have inadequate access to drinking water and use water contaminated with disease vectors, pathogens or unacceptable levels of toxins or suspended solids. Drinking such water or using it in food preparation leads to widespread, acute and chronic illnesses and is a major cause of death and misery in many countries. The UN estimates that over 2.0 billion people have limited access to safe water and nearly 800 million people lack even the most basic supply of clean water. The main issue is the affordability of water purifying systems. Many people rely on boiling water or bottled water, which can be expensive. Therefore, technologies that are cost effective, sustainable, ease of operation/maintenance and the treatment processes with locally available materials are required. In this article, some unique low-cost sustainable technologies available/or in-use, i.e. natural filtration, riverbank filtration, biosand filtration, membrane filtration, solar water disinfection technique, biologically degradable materials such as moringa powder, scallop powder treatment, and biosand pitcher treatments have been discussed.

关键词： Sustainable Technology Clean Drinking Water Low Cost Bio-Sand Filtration Natural Filtration Solar Disinfection

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Influence of soil physicochemical properties,particle size fractions and mineralogy on the leaching potentials of arsenic and antimony in abandoned mine soils

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Pedosphere 2023年第5期33卷 744-753页

作者： A.S.M.Fazle bari Dane LAMB Geoff R.MACFARLANE mohammad Mahmudur RAHMAN Global Centre for Environmental Remediation(GCER) College of EngineeringScience and EnvironmentThe University of NewcastleCallaghanNSW 2308Australia Department of Soil Science Sher-e-Bangla Agricultural UniversityDhaka 1207Bangladesh Chemical and Environmental Engineering School of EngineeringRMIT UniversityMelbourneVictoria 3000Australia School of Environmental and Life Sciences The University of NewcastleCallaghanNSW 2308Australia

At abandoned mine sites,arsenic(As)-and antimony(Sb)-enriched soils are often disposed of through onsite burial or *** highly weathered mine sites,the mobility of As and Sb is typically controlled by iron(Fe)(III)/Fe(II)phases;thus,the suitability of such disposal methods and appropriate testing techniques are *** the present study,leaching potentials of As and Sb were examined using the toxicity characteristic leaching procedure(TCLP),waste extraction test(WET),and WET-extended procedure(WET-EXT)at three abandoned mine site soils in *** leached concentration of As regularly exceeded USEPA criteria(5 mg L^(-1)).The highest leached concentrations of As and Sb were observed in the finest particle size fraction(<0.053 mm)by WET-EXT(1040 mg L^(-1)for As and 21.10 mg L^(-1)for Sb)followed by WET(800 mg L^(-1)for As and 20.90 mg L^(-1)for Sb).The TCLP method resulted in the lowest concentrations of leached As(0.0009 mg L^(-1))and Sb(0.0003 mg L^(-1)).Crystalline and amorphous As-bearing Fe oxides were the main phases in the soils ***,the best correlations of leached As determined by TCLP(0.832),WET(0.944),and WET-EXT(0.961)were found with the non-specifically sorbed(NS1)As *** mineralogical and sequential extraction data clearly indicate the dominant role of Fe geochemistry in controlling leachability of As and *** TCLP method was unlikely to be suitable for assessing leachability,as it exhibited no relationship with leachable Fe and substantially lower leached As and Sb than the other two *** the high to extremely high leachable As and Sb concentrations,most of the soil samples would not be recommended for placement in capping works,old shafts,or reduction systems(e.g.,collection in drainage basins).

关键词： particle size fraction sequential extraction toxic element toxicity characteristic leaching procedure waste extraction test

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A Feasible Way of Degrading Malathion Pesticide under Laboratory Condition Using Phosphate Solubilizing Bacteria

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Journal of Geoscience and Environment Protection 2019年第1期7卷 1-12页

作者： Pratyasha Chakma Sumaiya Chowdhury latiful bari Sirajul Hoque Department of Soil Water and Environment University of Dhaka Dhaka Bangladesh Food Analysis and Research Laboratory Centre for Advanced Research in Sciences University of Dhaka Dhaka Bangladesh

An experiment was carried out for identification and determination of malathion degrading phosphate solubilizing bacteria isolated from the agricultural fields. In this study, malathion degrading phosphate solubilizing bacteria were identified using NBRIP (National Botanical Research Institute’s phosphate growth medium) media. A number of bacterial colonies were screened from agricultural fields. From primarily screened colonies 4 isolates were identified as phosphate solubilizing bacteria through qualitative and quantitative analysis. The isolated 4 bacterial colonies were inoculated in NBRIP broth media enriched with malathion pesticides to observe degradation of malathion pesticide under incubation study at three different temperatures (25°C, 30°C and 37°C). However, all the four isolates showed capability in degrading malathion pesticide. The study clearly revealed that phosphate solubilizing bacteria can be used in bioremediation of environmental pollution caused by malathion pesticide.

关键词： Malathion NBRIP Media Phosphate Solubilizing Bacteria (PSB) Bioremediation and Degradation

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Differentiation of Fungal Destructive Behaviour of Wood by the White-Rot Fungus Fomes fomentarius by MALDI-TOF Mass Spectrometry

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Journal of Renewable Materials 2021年第3期9卷 381-397页

作者： Ehsan bari Antonio Pizzi Olaf Schmidt Siham Amirou mohammad Ali Tajick-Ghanbary Miha Humar Department of Wood Sciences and Engineering Technical Faculty of No.1Mazandaran BranchTechnical and Vocational University(TVU)SariIran Department of Industrial Chemistry ENSTIB-LERMABUniversity of LorraineEpinalFrance Department of Wood Biology University of HamburgHamburgGermany Department of Mycology and Plant Pathology College of Agronomic SciencesAgricultural and Natural Resources UniversitySariIran Department of Wood Science and Technology Biotechnical FacultyUniversity of LjubljanaLjubljanaSlovenia

There are many methods to identify and recognize the molecular and behavioural differences between *** of the methods for the detection and identification of unknown organisms as well as intermolecular and intramolecular structural differences is MALDI-TOF mass ***,differentiation of Fomes fomentarius decay capabilities on the chemical properties of the wood cell wall of the tree species Quercus castaneifolia,Juglans regia,and Carpinus betulus were used to determine and characterize the destructive behaviour of *** decay by MALDI-TOF mass *** results showed that the fungus had more significant destructive behaviour on *** than the other *** this evidence,completely removal of xylan hemicellulose fragment+Na+at peak 1227 Da and severe digestion of fragment of glucomannan hemicellulose at peak 1477–1480 Da that it seems that signs of soft-rot patterns were obtained from the decayed sample of ***,while these were incremental and unchanged for *** and ***,***,*** had different peaks of atomic mass than *** and *** wood,*** results showed that this technique could be useful for separating and identifying unknown compounds of the wood cell wall attacked by fungi relying on their biological behaviour.

关键词： White-rot Fomes fomentarius MALDI-TOF fungal destructive behaviours

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Prevalence of Antibiotic Resistant Bacteria on Tomato Surfaces and Effectiveness of Disinfectants in Reducing the Microbial Load

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Journal of Food Science and Engineering 2012年第5期2卷 293-300页

作者： Fauzia Ahmed Rupa Munawar Sultana Yasuhiro Inatsu Md. latiful bari Md. Anwar Hossain Department of Microbiology University of Dhaka Dhaka 1000 Bangladesh Food Hygiene Research Laboratory National Food Research Institute 2-1-12 KannondaL Tsukuba-shi Ibaraki 305-8642 Japan Food Analysis and Research Laboratory Center for Advanced Research in Sciences University of Dhaka Dhaka 1000Bangladesh

This study was conducted to isolate and identify antibiotic resistant bacteria in fresh tomato sold in three different local markets of Dhaka city. On an average 〉 5.0 log CFU/g of natural microbial populations and coliform bacteria was present in the samples. Prevalence of Salmonella spp., E. coli, Listeria spp., and Yersinia spp., were recorded through cultivation dependent assay of tomato samples of different markets. Almost all of the isolates were uniformly resistant to rifampicin, erythromycin, clindamycin and oxacillin （100%）, vancomycin （93%）, amoxicillin （87%）, whereas 60% of the isolates were found to be resistant to ampicillin and cephalexin. Antibiotic sensitivity test of the presumptive E. coli and Salmonella spp. and corresponding plasmid profiling indicated a correlation of plasmid mediated multidrug resistance （MDR） of these environmental bacteria. Washing with sanitizing agents such as acidified sodium chlorite （ASC） and 200 ppm chlorinated water was able to reduce _〈 2.0 log CFU/g of natural microflora and coliform bacteria. In contrast, ASC was able to reduce 〈 2.0 log CFU/g of other food borne pathogens and, chlorinated water was able to reduce up to undetectable level. Therefore, washing of tomato with 200 ppm chlorinated water could be useful in reducing the pathogen populations on tomatoes.

关键词： Antibiotic resistant bacteria acidified sodium chlorite chlorinated water E. coli O 157:H7 salmonella spp. tomato.

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Trends and Spatial Heterogeneity of Climate Extremes in the Southwestern Region of Bangladesh

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Chinese Journal of Urban and Environmental Studies 2022年第4期10卷 31-55页

作者： Tasnima SHIRIN Tithi SAHA Hasibur RAHAMAN Arif CHOWDHURY Ehsanul bari Tusar Kumar DAS mohammad Mahfuzur RAHMAN Department of Botany Eden Mohila College National University 2. Department of Environmental Science and Technology Jashore University of Science and Technology 3. Department of Climate and Disaster Management Jashore University of Science and Technology Department of Environmental Science Faculty of Science Chulalongkorn University

This study attempts to investigate the climatic variability in the southwestern area of Bangladesh focusing on temperature and precipitation extremes. Long-term daily records of temperature and precipitation from six weather stations spread over the study area were analyzed. A total of 20 yearly indices were calculated and testified for the trends with the Mann–Kendal test and Sen’s estimator of slope at a 95% confidence interval. Moreover, one-way ANOVA and Tukey–Kramer post-hoc tests were applied to verify the spatial heterogeneity of the climatic indices among the meteorological stations. Findings revealed that Khulna is the worst affected area with significant changes in 12 climatic indices. Jessore and Faridpur followed Khulna with significant changes in10 and 9 indices, respectively. Among the indices, significant changes in TN10p(frequencies of daily minimum temperature event that falls below the 10th percentile value), TX10p(frequencies of daily maximum temperature event that falls beyond the 10th percentile value), CSDI(cold spell duration indicator), and CDD(consecutive dry day) are the most common phenomenon in the studied region. Five out of six stations have been experiencing significant increasing trends for TN10p. That indicates an overall increase of extreme cold day frequencies in the area. Khulna station showed shreds of evidence of extreme cold temperature instances with a statistically significant fall in the minimum value of the yearly minimum temperatures(TNn). Besides,Khulna also experienced a statistically significant fall in the minimum value of the yearly maximum temperatures. Consistently, the area showed a significant trend of wider cold ***, the extremely warm day frequencies have also been increasing significantly for the Khulna, Jessore, and Faridpur areas. Therefore, it is evident that the studied area has been experiencing temperature extremes. On the other hand, precipitation extremes are apparent for only Khulna and Je

关键词： Climatic indices climate extremes climate change Bangladesh trend analysis

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Nutritional, Phytochemicals and Antioxidant Properties of Some Popular Pulse Varieties of Bangladesh

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Journal of Agricultural Chemistry and Environment 2020年第4期9卷 343-368页

作者： Tanvir Ahmmed Asma Rahman Umme Salma Zakia Akter Md. Mesbah Uddin Ansary Md. Ibrahim Khalil Nurul Karim latiful bari Laboratory of Preventive and Integrative Biomedicine (PIB) Department of Biochemistry and Molecular Biology Jahangirnagar University Savar Dhaka Bangladesh Food Nutrition & Agricultural Research Unit Center for Advanced Research in Sciences (CARS) University of Dhaka Dhaka Bangladesh Department of Biochemistry and Molecular Biology Gono Bishwabidyalay Savar Dhaka Bangladesh

In this study, we estimate the proximate compositions, phytochemicals (polyphenol, flavonoids, flavonol, tannin, protein, carbohydrate, reducing sugar, and β carotene), antioxidant activities, vitamins, minerals, and heavy metals of the four pulses (mung, anchor, chickpea, lentils) and compare among them to find out more nutritious pulse samples. Mung was found to contain the highest amount of polyphenol (98.02 ± 1.74 mg GAE/100 g) and tannin (447.98 ± 9.96 mg TE/100 g) and anchor (771.35 ± 3.76 mg CE/100 g) was rich in flavonoids as compared to other two pulse samples. Mung was also rich in ash, carbohydrate, vitamin B1, copper and anchor was rich in crude fiber, protein, reducing sugar, and vitamin B2 content. The highest amount of phytochemicals contained in mung and anchor corresponded to its highest antioxidant activity in analyzed antioxidant assays respectively. Other two pulses included in this study were found to contain good source of vitamins, minerals and other nutrients.

关键词： Pulses Phytochemicals Antioxidant Activity Nutrients Bangladesh

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Carbon mineralization in subtropical alluvial arable soils amended with sugarcane bagasse and rice husk biochars

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Pedosphere 2022年第3期32卷 475-486页

作者： mohammad Arifur RAHMAN mohammad Abdul KADER mohammad JAHIRUDDIN mohammad Rafiqul ISLAM Zakaria mohammad SOLAIMAN Regional Agricultural Research Station(RARS) Bangladesh Agricultural Research Institute(BARI)Jamalpur 2000(Bangladesh) School of Agriculture GeographyEnvironmentOcean and Natural SciencesUniversity of South PacificApia 1343(Samoa) Department of Soil Science Bangladesh Agricultural University(BAU)Mymensingh 2202(Bangladesh) UWA School of Agriculture&Environment and the UWA Institute of Agriculture PerthWA 6009(Australia) School of Veterinary and Life Science Murdoch UniversityMurdochWA 6150(Australia)

Subtropical recent alluvial soils are low in organic carbon(C).Thus,increasing organic C is a major challenge to sustain soil *** amendment could be an option as biochar is a C-rich pyrolyzed material,which is slowly decomposed in *** investigated C mineralization(CO_(2)-C evolution)in two types of soils(recent and old alluvial soils)amended with two feedstocks(sugarcane bagasse and rice husk)(1%,weight/weight),as well as their biochars and aged biochars under a controlled environment(25±2℃)over 85 *** the recent alluvial soil(charland soil),the highest absolute cumulative CO_(2)-C evolution was observed in the sugarcane bagasse treatment(1140 mg CO_(2)-C kg^(-1)soil)followed by the rice husk treatment(1090 mg CO_(2)-C kg^(-1)soil);the lowest amount(150 mg CO_(2)-C kg^(-1)soil)was observed in the aged rice husk biochar ***,for the old alluvial soil(farmland soil),the highest absolute cumulative CO_(2)-C evolution(1290 mg CO_(2)-C kg^(-1)soil)was observed in the sugarcane bagasse treatment and then in the rice husk treatment(1270 mg CO_(2)-C kg^(-1)soil);the lowest amount(200 mg CO_(2)-C kg^(-1)soil)was in the aged rice husk biochar *** sugarcane bagasse and rice husk biochar treatments reduced absolute cumulative CO_(2)-C evolution by 10%and 36%,respectively,compared with unamended recent alluvial soil,and by 10%and 18%,respectively,compared with unamended old alluvial *** absolute and normalized C mineralization were similar between the sugarcane bagasse and rice husk treatments,between the biochar treatments,and between the aged biochar *** both soils,the feedstock treatments resulted in the highest cumulative CO_(2)-C evolution,followed by the biochar treatments and then the aged biochar *** absolute and normalized CO_(2)-C evolution and the mineralization rate constant of the stable C pool(K_(s))were lower in the recent alluvial soil compared with those in the old alluvial *** biochar

关键词： aged biochar biochar amendment charland CO_(2)emission CO_(2)-C evolution recent alluvial soil soil organic carboon soil organic matter

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Psychiatric Morbidity of Chikungunya among Children in Bangladesh

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Health 2018年第1期10卷 90-94页

作者： Sanjana Zaman mohammad Delwer Hossain Hawlader Ariful bari Chowdhury Gias U. Ahsan Institute of Child Health Mirpur Dhaka Bangladesh North South University Dhaka Bangladesh

Chikungunya occurred as a major epidemic form in Bangladesh in 2017 after a gap of 6 years. The first outbreak of Chikungunya was identified in Bangladesh in 2008. Another outbreak occurred at Dhaka in 2011. But the current outbreak is huge and effecting almost two third of the population. Methods: This was a retrospective case series study, consisted of 60 children, among which 35 were male and 25 female, ages ranging from 5 to 15 years. Those children were recruited from child health care clinic with a history of two to five days’ high grade fever. All patients recruited were IgM antibody for Chikungunya positive (after 5th day of onset of fever) and on the other hand antibody for Dengue was negative. Two patients were excluded from the study due to Cerebral Palsy and Claustrophobia. Finally 58 patients were assessed. Informed written consent was obtained from all the legal guardians before data collection. Results: All patients presented with a history of two to five days’ high grade fever. The fever was preceded by a maculopapular rash over the trunk and extremities, headache, myalgia and arthralgia. Delirium (non-specified) was most prevalent psychiatric symptoms 45 (77%). Other psychiatric symptoms were Panic Disorder (56%), Phobic Disorder (36%), Neurasthenia or Fatigue syndrome (27%), Hypersomnia (13%) and Claustrophobia (5%). Conclusion: This study suggested that psychiatric morbidity among pediatric Chikungunya patients is very common. Knowledge of the pathogenesis is required to reduce the psychiatric complications and to prevent the morbidity. There is an emergence to invent the prophylactic vaccination, proper and early diagnosis of Chikungunya.

关键词： Chikungunya Dengue Psychiatric Symptoms Children Bangladesh

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Breeding Potential of Some Exotic Tomato Lines:A Combined Study of Morphological Variability,Genetic Divergence,and Association of Traits

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Phyton-International Journal of Experimental Botany 2022年第1期91卷 97-114页

作者： Shafiul Islam Lutful Hassan mohammad Anwar Hossain Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh2202Bangladesh

Tomato(Solanum lycopersicum L.)is called‘the poor man’s orange’due to its low price and improved nutritional *** experiment was conducted to study the breeding potential of some exotic tomato lines by assessing various qualitative and quantitative traits conferring yield and quality *** the qualitative traits,greater variability was observed for growth type,stem hairiness,and fruit shape and size.A determinate growth habit was observed in the genotype AVTO9802 while the genotype AVTO0102 produced yellow color fruits.A significant(p≤0.01)variation was also observed for the studied quantitative *** on yield and traits attributed to yield,the genotypes AVTO0314,GPB0107,GPB0120 and AVTO9802 were selected as promising *** differences between the genotypic and phenotypic coefficients of variation(GCV and PCV)of the studied quantitative traits were very *** suggests that the apparent variation was mainly due to the *** higher GCVand PCV values were observed for the number of primary branches plant^(−1)(NPB),number of fruits cluster^(−1)(NFC),individual fruit weight(IFW)and total soluble solids(TSS).High heritability was recorded for all quantitative traits in a broad ***,the individual fruit diameter showed the highest heritability(99.56).The highest(102.75)genetic advance(GA)was observed for the number of fruits plant^(−1)(NFP).High heritability coupled with high GA as percentage of mean were recorded for the traits NFP,NFC,fruit yield plant^(−1)(FYP)and *** showed a significant positive correlation with NFC(0.714^(***))and a negative correlation with days to the first harvest(−0.539^(***))and plant height(−0.492**).Principal component analysis revealed that the first four components explained 78.5%of the total variation among the ***,the promising genotypes(AVTO0314,GPB0107,GPB0120,AVTO9802 and AVTO0102)isolated from this study can be used for developing high-yielding and high-quality tomato va

关键词： Tomato yield and quality traits genetic advance heritability correlation coefficient principal component analysis

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