scholarly journals Physicochemical Analysis of Mymensingh Municipality Sewage Water and Old Brahmaputra River water

2018 ◽  
Vol 10 (2) ◽  
pp. 105-108
Author(s):  
M Uddin ◽  
S Talukder ◽  
MS Hossen ◽  
MT Hossain
Keyword(s):  
River Water ◽  
Water Samples ◽  
Oxygen Demand ◽  
Sewage Water ◽  
Physicochemical Analysis ◽  
Mean Value ◽  
Brahmaputra River ◽  
Acceptable Range ◽  
Irrigation Water Use ◽  
The Mean

The study was conducted to investigate the physicochemical properties of the Old Brahmaputra River and Sewage water in Mymensingh Municipality. To perform the study fifty samples were collected from five different stations from the river and surrounding sewage discharge points. The samples were analyzed to determine pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), Lead (Pb) and Cadmium (Cd). The mean value of pH was 7.1 and 6.8 for river and sewage water samples, respectively. Mean EC value was 183 μS/cm and 589.18 μS/cm for river and sewage samples, respectively signifies that EC of all samples were within the acceptable range. 66.32 ppm and 260.36 ppm were the mean TDS value for river and sewage samples, respectively indicates no harm to aquatic lives and irrigation water use. Mean DO and BOD values for river water samples were 4.21 mg/L and 6.02 mg/L, respectively. 3.08 mg/L and 9.98 mg/L were the mean DO and BOD values for sewage water samples, respectively implies that river water is usable for irrigation but sewage water is unfit for it. Mean Pb concentration for river and sewage water samples was 0.428 ppm and 0.467 ppm, respectively.J. Environ. Sci. & Natural Resources, 10(2): 105-108 2017

Stable isotope geochemistry of Oxygen and Hydrogen: A case study of the Satluj River Basin, India  

2021 ◽  
Author(s):  
Akhtar Jahan ◽  
Mohd Usman Khan ◽  
Nachiketa Rai ◽  
Abhayanand Singh Maurya ◽  
Sudhir Kumar
Keyword(s):  
Stable Isotope ◽  
River Water ◽  
Water Samples ◽  
Hydrological Cycle ◽  
Indian Subcontinent ◽  
Monsoon Season ◽  
Isotope Analysis ◽  
Mean Value ◽  
Isotopic Analyses ◽  
The Mean

<p>Stable isotope analysis of hydrogen and oxygen is one of the important methods used to model the hydrological cycle. Oxygen and hydrogen isotopic investigation of river water, its tributaries, and groundwater of its catchment from the Satluj basin was undertaken to estimate the contributions of the main sources comprising discharge during major periods throughout a hydrologic year.</p><p>Estimation of the snow/glaciers melt contribution is also very important for tracing the sources and processes regulating the flow from the provenance and reservoirs in the context of global warming, for estimating flood flow, and for other water resource development activities in large parts of the Indian subcontinent. Water samples were collected during the non-monsoon season at increasing altitudes. In this work, in addition to stable isotopes, we also assessed the water quality using various physicochemical parameters and geochemistry of the water.</p><p>From isotopic analyses of river water samples, the mean value of the δ<sup>18</sup>O was found to be ~ -13‰, and the mean value of δD was found to be~ -85‰. For the samples from Satluj tributaries, the mean value of the δ<sup>18</sup>O was ~ -11‰, and the mean value of δD was ~ -69‰. A mean value of -8.4‰, was found based on the δ<sup>18</sup>O measurements of the groundwater samples, while the average δD value was found to be ~ -55‰.</p><p>For the mainstream and tributary, LWL, y = 8.2604x +20.208, and range of d-excess (>10‰) and y = 8.2079x + 22.182 and d-excess > 10‰ indicates a system recharged by sources of recycled moisture derived from continental sources in addition to monsoonal climates. For the groundwater data, the slope is 6.7, and d-excess ranges from 7‰ to 17‰. These observations are suggestive of the monsoonal source of Indian Ocean precipitation that has experienced significant evaporation during the non-monsoon season.</p><p>Our new data clearly shows that the surface water whether mainstream, tributary, and groundwater isotopes are homogenized from regional trends in precipitation, modified by evaporation, and are thus greatly influenced by latitude, elevation, and patterns of climate.</p><p> </p>

scholarly journals Investigation of water quality from the Brahmaputra river in Sherpur district

2016 ◽  
Vol 28 (1) ◽  
pp. 35-41 ◽  
Author(s):  
MS Islam ◽  
T Datta ◽  
IJ Ema ◽  
MH Kabir ◽  
NT Meghla
Keyword(s):  
Water Quality ◽  
River Water ◽  
Anthropogenic Activities ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Mean Value ◽  
Brahmaputra River ◽  
Physico Chemical ◽  
The Status

The study was conducted to determine the status of physico-chemical parameters of the Brahmaputra river water in Sherpur district and also to assess the monthly variation of the river water. To perform the study the samples were collected from five different stations during the period of December 2013 to May 2014. Various water quality parameters such as transparency, temperature, electrical conductivity (EC), total dissolved solids (TDS), pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), hardness and alkalinity were examined. The study revealed that a slightly variation in water quality at different stations of the river. The mean value of transparency (42.21 cm), temperature (23.38oC), EC (351.12 ?s/cm), TDS (178.54 mg/l), pH (7.75), DO (4.47 mg/l), BOD (1.02 mg/l), hardness (82.36 mg/l) and alkalinity (98.63 mg/l) showed that the present status of the Brahmaputra river water is suitable for all aquatic lives, domestic and agricultural uses. Although the overall status of the river water quality is suitable, degradation was detected in few points which might be due to anthropogenic activities, especially the direct discharge of domestic effluents into river. Thus, necessary initiatives should be taken against such anthropogenic activities to maintain the overall water quality of the Brahmaputra river for its sustainable use.Bangladesh J. Sci. Res. 28(1): 35-41, June-2015

scholarly journals Coagulant potentials of Moringa oleifera seeds in water purification

2020 ◽  
Vol 26 (2) ◽  
Author(s):  
R. V. Thorat ◽  
D. A. Malvekar ◽  
A. U. Sutar
Keyword(s):  
Water Sample ◽  
River Water ◽  
Water Purification ◽  
Water Samples ◽  
Moringa Oleifera ◽  
Sewage Water ◽  
Chemical Parameters ◽  
Natural Coagulant ◽  
Physico Chemical ◽  
Almost All

The main objective of this study is to confirm the potentials of Moringa oleifera seeds over alum for water purification. Various doses of Moringa seed powder 4, 8, 12 g/l were taken and checked for treatment of river and sewage water. After treatment of seed powder with water samples were analyzed for physico-chemical parameters like pH, Absorbance, TDS, TSS, Hardness, Chlorides, Conductivity, Turbidity, MPN and DO. Almost all parameters showed reduction with increasing dosage of Moringa seed powder. Similar doses of alum were checked with river water sample and were analyzed for above mentioned parameters. The results obtained showed that seed powder (natural coagulant) is more effective than conventional chemical coagulant., alum. The seed of Moringa oleifera is cheap, eco-friendly and non-toxic, can be effectively used as a coagulant for river and sewage water purification.

scholarly journals Assessment of the Current Pollution Status of Jabi Lake in the Federal Capital Territory, Abuja, Nigeria

2019 ◽  
Vol 51 (3) ◽  
pp. 324
Author(s):  
Cyril Kanayochukwu Ezeamaka ◽  
Sadiq Queen ◽  
Daful Mwanret ◽  
Ogbole Moses ◽  
Anjide Theresa Wado
Keyword(s):  
Oxygen Demand ◽  
Mean Value ◽  
Who Guidelines ◽  
High Concentration ◽  
Domestic Water ◽  
Secchi Disc ◽  
Flame Atomic Absorption ◽  
Pollution Status ◽  
The Mean ◽  
Proactive Measures

This paper was aimed at providing the pollution status of Jabi Lake, FCT Abuja. 13 parameters were tested from raw water collected four sampling points. The physicochemical parameters were measured using Hanna multiparametric meter, while transparency was measured using Secchi disc. Dissolved oxygen, Biological and Chemical oxygen demand were measured titrimetrically using standard method. The concentrations of the metals were determined in triplicates. Flame atomic absorption spectrometer was used in the analysis as well as descriptive statistics (mean, standard deviation) and standard error. The Nigerian Industrial Standard and WHO guidelines for domestic water were used to compare the results of the water from the lake. The study reveals that the mean turbidity ranged between 21.6 – 24.2cm and is above the recommended limits of both WHO and NIS. The range of pH was between 6.3 and 8.8. pH is within a neutral range. The study reveals that the mean value of TDS and electrical conductivity is below the recommended limit of both WHO and NIS guidelines. The study shows that there is high concentration of some heavy metals (Cd, Cu, Ni, Mn, Zn, and Fe) in Jabi Lake. Cd, Zn, Fe and Ni are above the permissible limits of the NIS and WHO guidelines, which is an indication of pollution. The study, therefore, recommends that proactive measures be taken on environmental laws in FCT and that environmental/health worker and non-governmental bodies be active in enlightenment campaigns that will alert members of the public to the harm being caused to this important ecosystem.

scholarly journals Comparative Study on Physicochemical and Biological Parameters of Water among Fish Culture and Reconstructed Pond at Jahangirnagar University Campus, Bangladesh

2016 ◽  
Vol 9 (1) ◽  
pp. 1-7 ◽  
Author(s):  
RS Lucy ◽  
ME Huda ◽  
SMD Islam
Keyword(s):  
Physicochemical Parameters ◽  
Ph Value ◽  
Total Dissolve Solid ◽  
Oxygen Demand ◽  
Mean Value ◽  
Biological Parameter ◽  
Fish Culture ◽  
Biological Parameters ◽  
University Campus ◽  
The Mean

The study was conducted to investigate the physicochemical and biological parameters of fish culture and reconstructed pond at Jahangirnagar university campus. The physicochemical parameters of water in culture and reconstructed pond were analyzed during February to September, 2014 and the mean value of temperature were 30.21±0.89 ºC and 29.96±0.91 ºC, pH value were 7.20±0.29 and 6.97±0.39, Dissolve Oxygen (DO) value were 6.44±0.40mg-1 and 6.22±0.30mg-1, Biochemical Oxygen Demand (BOD5) value were 1.02±0.32mg-1 and 0.78±0.18mg-1, Total Dissolve Solid (TDS) were 0.69±0.04mg-1 and 0.64±0.04mg-1, Electric Conductivity (EC) value were 215.38±21.27?Scm-1 and 128.58±1.10?Scm-1. From the study of biological parameter, it was found that Chlorophyceae and Euglenophyceae were dominant in studied ponds and the abundance of phytoplankton are in the order of Chlorophyceae >Euglenophyceae > Bacillariophyceae > Cyanophyceae. The highest productivity was found in culture pond which indicates the suitability of using for aquaculture.J. Environ. Sci. & Natural Resources, 9(1): 1-7 2016

scholarly journals Effects of Ingested Fresh Palm Wine on Pupil Diameter and Amplitude of Accommodation in Young Adults

2021 ◽  
Vol 11 (9) ◽  
pp. 203-208
Author(s):  
Ugwoke, G.I. ◽  
Esenwah, E.C. ◽  
Ikoro, N.C.
Keyword(s):  
Young Adults ◽  
Pupil Diameter ◽  
Research Work ◽  
Mean Amplitude ◽  
Physicochemical Analysis ◽  
Mean Value ◽  
Normal Body Mass Index ◽  
Microbiological Analysis ◽  
Palm Wine ◽  
The Mean

Palm wine has long been the traditional wine of choice for most people during festive periods and social activities. This research work was done to determine the effect of ingested fresh palm wine on pupil diameter and amplitude of accommodation in young adults. Fifty (50) young adults aged between 18-35 years with a mean age of 23.46(±2.54) and weight ranging from 45-80kg with mean weight of 61.18(±8.00) volunteered for this work. The volunteers had normal body mass index (BMI) of between 18.5 and 25kg/m2. Pupil diameter in millimeters (mm) and Amplitude of Accommodation (AA) in diopters (D) were measured before and after 30 minutes, 60 minutes and 90 minutes intake of 330ml of fresh palm wine containing 5.1% alcohol at the time it was consumed. Physicochemical analysis of the palm wine showed the presence of Solids, Sugar, Ascorbic acid (Vitamin C) while microbiological analysis showed the presence of yeasts. Its pH at the time was 6.20. Statistical analysis with SPSS version 21 showed that the mean pupil diameter before intake of fresh palm wine was 3.80(±0.72) and mean value 30 minutes, 60 minutes and 90 minutes after intake of fresh palm wine were 3.30(±0.61), 3.48(±0.75) and 4.20(±0.64) respectively. The mean Amplitude of accommodation before intake of fresh palm wine was 12.16(±3.66) and mean value 30 minutes, 60 minutes and 90 minutes after intake of fresh palm wine were 13.86(±3.31), 10.19(±2.47) and 9.16(±2.12) respectively. The result obtained was statistically significant using one way ANOVA at 95% confidence interval and 0.05 level of significance; P(0.00) ˂0.05. The mean difference was significant at the 0.05 level. This study showed that fresh palm wine interfered with visual functions as increased pupil size and changes in AA were observed. Key words: Fresh palm wine, pupil diameter, amplitude of accommodation.

scholarly journals Microbiological and Physicochemical Water Quality Assessments of River Water in an Industrial Region of the Northwest Coast of Borneo

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1648 ◽  
Author(s):  
Sui Leong ◽  
Johan Ismail ◽  
Nurdiyana Denil ◽  
Shahrul Sarbini ◽  
Wafri Wasli ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Water Quality ◽  
River Water ◽  
Oxygen Demand ◽  
Northwest Coast ◽  
Most Probable Number ◽  
Probable Number ◽  
Industrial Region ◽  
Coliform Count ◽  
The Mean

Urbanization and ever increasing socioeconomic activities have degraded natural resources globally. This study monitored water quality (WQI) based on physicochemical and microbial qualities of river water in an industrial region northwest coast of Borneo. Microbiological parameters tested included total viable count (TVC), coliform count (TC), faecal coliform count (FC), and Escherichia coli confirmation. Physicochemical constituents evaluated included water temperatures (T), pH, total dissolved solids (TDS), salinity, electrical conductivity (EC), dissolved oxygen (DO), biochemical oxygen demand (BOD), ammoniacal nitrogen (NH3-N), chemical oxygen demand (COD) and total suspended solids (TSS). The mean microbial counts of samples were: TVC (3.9 × 102–3.0 × 104 cfu mL−1), TC and FC (23–>1600 MPN 100 mL−1) (MPN: the most probable number) and Escherichia coli growth was confirmed. The mean values of pH, TDS, salinity, EC and BOD are significantly different (p < 0.05) between the rivers ranged: pH (5.05 ± 0.03–6.10 ± 0.10), TDS (0.0 ± 0.0–38,600 ± 50 mg L−1), salinity (0.01 ± 0.0–3.07 ± 0.07%), EC (650 ± 25–19,566.67 ± 251.66 µS cm−1), and BOD (0.23 ± 0.10–3.12 ± 0.02 mgO2 L−1). The tested parameters of samples exceeded international limits with the exception of COD and TSS. The WQI of river water tested ranged from 65–73 under class III. Most of the river water was slightly polluted and a potential threat to public health.

scholarly journals Start-up of horizontal anaerobic reactors with sludge blanket and fixed bed for wastewater treatment from coffee processing by wet method

2013 ◽  
Vol 33 (2) ◽  
pp. 353-366 ◽  
Author(s):  
Roberto A. de Oliveira ◽  
Natani M. N. Bruno
Keyword(s):  
Fixed Bed ◽  
Oxygen Demand ◽  
Anaerobic Treatment ◽  
Mean Value ◽  
Treatment System ◽  
Anaerobic Sludge ◽  
Mean Values ◽  
Anaerobic Reactors ◽  
Start Up ◽  
The Mean

In this study it was evaluated the start-up procedures of anaerobic treatment system with three horizontal anaerobic reactors (R1, R2 and R3), installed in series, with volume of 1.2 L each. R1 had sludge blanket, and R2 and R3 had half supporter of bamboo and coconut fiber, respectively. As an affluent, it was synthesized wastewater from mechanical pulping of the coffee fruit by wet method, with a mean value of total chemical oxygen demand (CODtotal) of 16,003 mg L-1. The hydraulic retention time (HRT) in each reactor was 30 h. The volumetric organic loading (VOL) applied in R1 varied from 8.9 to 25.0 g of CODtotal (L d)-1. The mean removal efficiencies of CODtotal varied from 43 to 97% in the treatment system (R1+R2+R3), stabilizing above 80% after 30 days of operation. The mean content of methane in the biogas were of 70 to 76%, the mean volumetric production was 1.7 L CH4 (L reactor d)-1 in the system, and the higher conversions were around at 0.20 L CH4 (g CODremoved)-1 in R1 and R2. The mean values of pH in the effluents ranged from 6.8 to 8.3 and the mean values of total volatile acids remained below 200 mg L-1 in the effluent of R3. The concentrations of total phenols of the affluent ranged from 45 to 278 mg L-1, and the mean removal efficiency was of 52%. The start-up of the anaerobic treatment system occurred after 30 days of operation as a result of inoculation with anaerobic sludge with active microbiota.

Pretreatment methods for aquatic plant biomass as carbon sources for potential use in treating eutrophic water in subsurface-flow constructed wetlands

2012 ◽  
Vol 66 (11) ◽  
pp. 2328-2335 ◽  
Author(s):  
Xiang-Feng Huang ◽  
Xin Liu ◽  
Jia-Jia Shang ◽  
Yi Feng ◽  
Jia Liu ◽  
...  
Keyword(s):  
River Water ◽  
Constructed Wetlands ◽  
Water Samples ◽  
Aquatic Plant ◽  
Plant Biomass ◽  
Carbon Sources ◽  
Oxygen Demand ◽  
Average Ratio ◽  
Eutrophic Water ◽  
Potential Use

Plant biomass is usually added to constructed wetlands (CW) to enhance denitrification. In this study, we investigated effects of different pretreatments on two common external plant carbon sources, cattail and reed litter. We determined the average ratio of chemical oxygen demand (COD) to total nitrogen (TN), designated as C/N, in water samples after addition of litter subjected to various pretreatments. The C/N in the water samples ranged from 4.8 to 6.4 after addition of NaOH-pretreated cattail litter, which was four to six times greater than that of water from the Yapu River and 3.84–39.15% higher than that of systems that received untreated cattail litter. The C/N of systems that received H2SO4-pretreated carbon sources varied from 1.7 to 3.6. These two methods resulted in TN and total phosphorus (TP) levels lower than those in river water. The C/N was 1.4–1.7 after addition of CH3COOH-pretreated reed litter, which was 34.87–53.83% higher than that of river water. The C/N was 2.5 in systems that received mild alkali/oxidation-pretreated reeds, which was 30.59% higher than that of systems that received non-pretreated reeds. The residue rates of cattail and reed litter subjected to various pretreatments were greater than 60%. Our results showed that NaOH, H2SO4, and mild alkali/oxidation pretreatments were useful to rapidly improve the C/N of river water and enhance denitrification.

scholarly journals Seasonal variation and characterization of effluents of fertilizer factory

2015 ◽  
Vol 26 (2) ◽  
pp. 136-146
Author(s):  
K Fatima ◽  
MK Hossain ◽  
MA Islam
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Quality Parameters ◽  
Mean Value ◽  
Dry Season ◽  
Chemical Parameters ◽  
Wet Season ◽  
Physico Chemical ◽  
The Mean ◽  
Nitrite Nitrate

The study was carried out to assess the water quality of the Jamuna river affected by effluents discharged from the nearby Jamuna Fertilizer Company Limited and its temporal change over wet and dry seasons due to change of the physico-chemical parameters. Effluents of the factories and water samples were collected from four different selected stations during the period of June to August 2014 and January to March 2015.The results further revealed that the water samples showed a remarkable variation in physico-chemical parameters during the wet and dry season. In wet season the mean value of temperature, pH, EC, TDS, TSS, DO, BOD, ammonium, nitrite, nitrate and chloride were28.63± 3.79 °C, 8.10± 0.85, 664.41± 599.54µscm-1, 370.91± 111.38 ppm, 74.49± 25.90 ppm, 6.11 ± 1.28 ppm, 75.39 ± 140.86 ppm 296.74± 303.03 ppm, 12.31±21.38 ppm,  15.19±24.49 ppm and 15.23±8.72 ppm, respectively In the dry season the mean value of temperature, pH, EC, TDS, TSS, DO, BOD, ammonium, nitrite, nitrate and chloride were31.69 ±3.18°C, 8.44± 0.66, 786.25±551.18µscm1, 338.37± 94.70 ppm, 72.08± 58.83 ppm, 5.45 ± 0.95 ppm, 86.93 ± 159.82 ppm, 347.91± 291.60 ppm, 13.68±23.1 ppm, 18.34± 24.92 ppm and 18.3±9.32 ppm, respectively. The comparative study showed that most of the effluent and water quality parameters were higher in dry season than those of the wet season because in dry season less quantity of water remains in the river and in wet season more water remains in river that has great dilution capacity. For existence and conservation of aquatic resources, it is essential to investigate the water quality and surrounding environment of the river.Progressive Agriculture 26 (2): 136-146, 2015

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