scholarly journals Microbial load in tannery and textile effluents and their receiving rivers of Dhaka

1970 ◽  
Vol 19 (1) ◽  
pp. 73-81 ◽  
Author(s):  
Monika Das ◽  
Md Kawser Ahmed ◽  
Fauzia Begum ◽  
Sahana Parveen ◽  
Md Monirul Islam ◽  
...  
Keyword(s):  
River Water ◽  
Aquatic Organisms ◽  
Industrial Effluents ◽  
Bacterial Count ◽  
Total Coliform ◽  
Dry Season ◽  
Industrial Wastes ◽  
Microbial Load ◽  
Textile Effluents ◽  
Very High

The present study was undertaken to investigate the occurrence of some selected microorganisms in industrial effluents and in the river Buriganga and Karnatoli, which receive the industrial effluents directly from industries, with a view to evaluate the effect of industrial effluents on river. The total viable bacterial count (TVBC) in both tannery and textile effluents were slightly higher in dry season than those of rainy and summer. The TVBC in Buriganga River ranged from 3.4 × 105 to 9.6 × 105, 2.2 × 104 to 1.2 × 105 and 7.2 × 104 to 4.5 × 105 cfu/ml in dry, rainy and summer seasons, respectively, and the TVBC in Karnatoli River ranged from 4.9 × 105 to 5.4 ×106, 1.2 × 105 to 1.0 × 105 and 5.3 × 104 to 3.8 × 105 cfu/ml in dry, rainy and summer seasons, respectively. Pseudomonas spp. in effluents and river water were also slightly higher in dry season than that of rainy and summer seasons due to increase in water level. The total coliform and fecal coliform counts of the industrial effluents and discharge point in the river were always very high, which was >2.4 × 103cfu/100 ml in all seasons as measured by the MPN method. Salmonella, Vibrio and Staphylococcus were frequently isolated from all the sampling points throughout the year with a few exceptions. This study indicates that the water of the river Buriganga and Karnatoli is heavily contaminated with both industrial wastes and domestic sewage materials. The bacteriological state of the water of the rivers is comparable to that of the effluents. The presence of pathogenic organisms may pose health hazards to the users of the river water and also poses risks for the aquatic organisms especially fish of the water bodies. Key words: Microbial load; Tannery; Textile effluents; Receiving rivers DOI: http://dx.doi.org/10.3329/dujbs.v19i1.8946 DUJBS 2010; 19(1): 73-81

scholarly journals Physico-chemical and Bacteriological Water Quality Evaluation of the Four Tributaries in Mt. Matutum Protected Landscape (MMPL), South Cotabato, Philippines

2018 ◽  
Vol 1 ◽  
pp. 3
Author(s):  
Tres Tinna B. Martin ◽  
Gerald G. Lobredo ◽  
Emmanuel P. Leaño ◽  
Maximo C. Aljibe ◽  
Edna P. Oconer
Keyword(s):  
Total Coliform ◽  
Dry Season ◽  
Microbial Load ◽  
Wet Season ◽  
E Coli ◽  
Microbial Characteristics ◽  
Physico Chemical ◽  
Domestic Use ◽  
Standard Limit ◽  
Riverine Systems

Healthy riverine systems provide ecological services that can be translated into human use and consumption. However, human activities cause environmental degradation limiting available pristine water supply and raising public health concerns. In the present study, four tributaries surrounding Mt. Matutum Protected Landscape (MMPL) were selected (Glandang, Linan, Kawit, and Amlok) for evaluation of their physicochemical and microbial characteristics between wet and dry season. The pH and total dissolved solids (TDS) of the river waters ranged from 6.75-8.68 and 55.96-221.89 ppm, respectively, with a pronounced pH fluctuation and TDS increase in Glandang and Linan tributaries from upstream to downstream stations. All tributaries showed varying dissolved oxygen (DO) levels upstream but become relatively stable downstream. All DO values, however, are below the standard limit set for freshwater quality. In terms of microbial load, total coliform ranged from 51-275 cfu/ml while E. coli showed absence (0 cfu/ml) to as high as 77 cfu/ml. Higher total coliform counts were observed on Kawit and Amlok tributaries which are situated in areas that are relatively more forested than the other two rivers. Presence of E. coli was also detected in the water samples from all tributaries. Temporal variation is significant indicating increased pH, TDS and microbial load during the wet season and DO during the dry season. The present microbial load of the four tributaries would restrict the utilization of water resource and necessitate proper treatments prior to domestic use. Read full article here.

scholarly journals Bioremediation of Vanki River Water & Industrial Effluents using Calotropis procera Latex Exudate and its Comparative Analysis against Moringa oleifera Leaves Extract

2021 ◽  
Vol 9 (VI) ◽  
pp. 3902-3911
Author(s):  
Riya S. Barot
Keyword(s):  
Comparative Analysis ◽  
River Water ◽  
Moringa Oleifera ◽  
Industrial Effluent ◽  
Industrial Effluents ◽  
Total Coliform ◽  
Textile Effluent ◽  
Calotropis Procera ◽  
Ph Reduction ◽  
Moringa Oleifera Leaves

This study was carried out to check the effectiveness of Calotropis procera latex for bioremediation and to compare its efficacy with Moringa oleifera leaves extract. It was observed that considerable reduction in various physicochemical and bacteriological properties of the samples took place with Calotropis procera latex. After 1 hour of treatment itself, it carried out pH reduction of 11.11%, 30.00% and 12.50%, while Moringa oleifera leaves extract carried out 0.00%, 20.00% and 0.00% reduction and after 24 hours, turbidity was reduced to 90.00%, 61.87% and 65.36% with Calotropis procera latex and 75.00%, 60.43% and 32.03% with Moringa oleifera leaves extract for Vanki river water, Textile effluent and Paper & Pulp Industrial effluent, respectively. Vanki river water showed a reduction in TSS and TDS of 2000 mg/L and 34000 mg/L with Calotropis procera latex and 3000 mg/L and 46000 mg/L, respectively with Moringa oleifera leaves extract. With Calotropis procera latex, the COD and BOD values were 544 mg/L, 608 mg/L and 800 mg/L; and 0.04 mg/L, 0.240 mg/L and 0.012 mg/L for Vanki river water, Textile effluent and Paper & Pulp Industrial effluent, respectively. When treated with Moringa oleifera leaves extract, the COD values reduced to 864 mg/L, 800 mg/L and 896 mg/L and BOD values reduced to 0.004 mg/L, 0.251 mg/L and 0.022 mg/L, respectively. The total coliform count reduced to 130 MPN/100 ml, <1.8 MPN/100 ml and 7.8 MPN/100 ml for Vanki river water, Textile effluent and Paper & Pulp Industrial effluent, respectively after treatment with Calotropis procera latex. Thus, Calotropis procera showed better results in comparison with Moringa oleifera. So, it could be considered as the best alternative to prevent pollution.

scholarly journals Microbial Assessment of Chevon of Black Bengal Goat

2017 ◽  
Vol 15 (2) ◽  
Author(s):  
S Parvin ◽  
HM Murshed ◽  
MM Hossain ◽  
M Khan
Keyword(s):  
Bacterial Count ◽  
Total Coliform ◽  
Mean Value ◽  
Viable Count ◽  
Microbial Load ◽  
Goat Meat ◽  
Raw Meat ◽  
The City ◽  
Black Bengal Goat ◽  
Mold Count

This study was conducted to assess the microbial load of Black Bengal goat meat during handling and selling in different markets of Mymensingh, Bangladesh. Total 27 samples were collected from three different places of the city, including KR market, Seshmore and Mesua Bazar. These samples were subjected to determine Total Viable Count (TVC), Total Coliform Count (TCC) and Yeast Mold Count (YMC) by using standard protocols. In raw meat, mean value of TVC were highest in Seshmore market (5.24±0.42 log cfu/g) at 0 hour but having no significant differences with other two places. In case of TCC and YMC highest count were in meat of Mesua Bazar. In case of TCC, difference were observed (P<0.05) among the markets. At 5 hours all the bacterial counts were increased having significant differences with the initial count and in most of the cases the bacterial count crossed the acceptable limit. This was may be due to the unhygienic practices of butchers. Consumers were not conscious. Suggestion has been given to improve the knowledge on hygiene among the meat producers to reduce microbial load.

scholarly journals Anthropogenic impacts on Keshalia River, Eastern Nepal

2017 ◽  
Vol 7 (1) ◽  
pp. 105-111
Author(s):  
Jay Narayan Shrestha
Keyword(s):  
Anthropogenic Impact ◽  
Anthropogenic Impacts ◽  
Industrial Effluents ◽  
Fish Diversity ◽  
Dam Construction ◽  
Fish Ladder ◽  
Very High

The anthropogenic impact on Keshalia river, especially on fish diversity, is very high. Over fishing with unconventional fishing methods, disposal of domestic and industrial effluents, excess use of pesticides, dumping sites of municipalities, dam construction without fish ladder across the river and mining of sands and gravels are major anthropogenic impacts on the river.

scholarly journals Environmental Isotope of Radon-222 for Ciliwung River and Shallow Deep Water Interaction Study

2020 ◽  
Vol 21 (2) ◽  
pp. 139
Author(s):  
Evarista Ristin Pujiindiyati ◽  
Bungkus Pratikno
Keyword(s):  
River Water ◽  
Residence Time ◽  
Shallow Groundwater ◽  
Infiltration Rate ◽  
Scientific Basis ◽  
Dry Season ◽  
River Bank ◽  
222Rn Concentration ◽  
Significant Difference ◽  
Groundwater Infiltration

Aquifer in river bank area is mostly susceptive toward pollution occurring in river. One of parameters to determine the interaction process between groundwater and river is a natural isotope of 222Rn. The significant difference of radon concentration in groundwater and river water can be utilized as a scientific basis for investigating groundwater infiltration in river bank. Those studied parameters are residence time and infiltration rate. The research using 222Rn had been conducted in shallow groundwater of Ciliwung river bank - South Jakarta during rainy and dry season. The range of 222Rn concentration in shallow groundwater monitored in dry season was between 666 - 2590 Bq/m3 which was higher than that of rainy season ranging at 440 to 1546 Bq/m3. Otherwise, concentration of 222Rn in river water could not be detected (its 222Rn concentration = 0 Bq/m3) due to its much lower concentration either rainy or dry season. During dry season monitoring, equilibration between groundwater and river water was reached at the distance approximately 98 - 140 m away from river side. Estimating residence time based on 222Rn concentration at nearest site from the river and at equlibration area was 4.2 days such that the infiltration rate from river water into aquifer might be 7.8 m/day.Keywords: 222Rn, groundwater, residence time, infiltration rate.

scholarly journals Effect of Hexavalent Chromium on the WBCs of the Fresh Water Fish, Labeo rohita

2020 ◽  
Vol 1 (3) ◽  
pp. 7-16
Author(s):  
Sivakumar V ◽  
Surendran A ◽  
Thatheyus A.J
Keyword(s):  
Fresh Water ◽  
Hexavalent Chromium ◽  
Aquatic Organisms ◽  
Industrial Effluents ◽  
Differential Count ◽  
Fresh Water Fish ◽  
Water Fish ◽  
Chromium Exposure ◽  
Wbc Count ◽  
Direct Discharge

Industrial effluents containing heavy metals may reach aquatic systems either through direct discharge or surface runoff and cause damage to aquatic organisms affecting their immune system and health. Hence the present study has been undertaken to observe the effects of hexavalent chromium on the WBCs of the fresh water fish, Labeorohita. WBCs play a major role in the immune response of the fish. For acute toxicity determination, healthy fish were subjected to static bioassays. The 24, 48, 72, and 96hr LC50 values were 50.88, 42.03, 28.09 and 10.87 ppm respectively. The fish were exposed to 0.5, 1, 1.5 and 2 ppm for 20 days. Differential count of WBCs and total WBC count were determined after every five days for twenty days. Lymphocytes exhibited a decline while the other cells and total WBC count exhibited an increase due to hexavalent chromium exposure. The results were subjected to two way analysis of variance.

scholarly journals Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution

2020 ◽  
Vol 20 (6) ◽  
pp. 1360
Author(s):  
Evarista Ristin Pujiindiyati ◽  
Paston Sidauruk ◽  
Tantowi Eko Prayogi ◽  
Faizal Abdillah
Keyword(s):  
River Water ◽  
Rainy Season ◽  
Sea Water ◽  
Dry Season ◽  
Mineral Dissolution ◽  
Water Type ◽  
Water Mixture ◽  
Hydrochemical Evolution ◽  
Increasing Trend ◽  
Saturation Indexes

The chemical characteristics of the Ciliwung River were analyzed to understand hydrochemical evolution. A fraction of sea water mixture and kinds of mineral controlling for chemicals were also determined. During three year investigations in 2015, 2016, and 2018, electrical conductivity increased with decreasing elevations. Two hydrochemical facies had been identified for the Ciliwung river water; those were Ca-Mg-HCO3 and Ca-Na-HCO3.  The river water mixing with seawater was recognized in the Mangga Dua site in which its water type had shifted to Na-Ca-HCO3-Cl. Based on Na-Cl contents, the fraction of sea water into the Ciliwung River reached 2% in the Mangga Dua site during the dry season and decreased to 0.7% during the rainy season in 2015. The much higher monthly rainfall during the dry season in 2016 and 2018 had washed out invading seawater from the Mangga Dua site; its fraction of sea water was less than 0.4%. Saturation indexes with respect to calcite, dolomite, and gypsum minerals showed an increasing trend related to the decreasing elevations. All water samples were undersaturated with respect to gypsum. Meanwhile, saturation indexes with respect to calcite and dolomite mostly indicated undersaturated, except in the Mangga Dua site that was saturated (during the rainy season in 2015 and dry season in 2018) and supersaturated during the dry season in 2015.

Effects of seasonal variation and locations on microbial load in sediment and water of a polluted ecosystem

2021 ◽  
Vol 36 (1) ◽  
pp. 93-105
Author(s):  
A.N. Okereke ◽  
J.C. Ike-Obasi
Keyword(s):  
Heterotrophic Bacteria ◽  
Standard Procedure ◽  
Dry Season ◽  
Microbial Load ◽  
Seasonal Effects ◽  
Wet Season ◽  
Different Seasons ◽  
Dry Seasons ◽  
Total Fungi ◽  
Hydrocarbon Utilizing Bacteria

Seasonal effects on microbial load of sediment and water at different locations along Bonny Estuary of Niger Delta was investigated for a period of 12 months. All analyses followed standard procedure. Results revealed that total fungi counts in sediment and water at different locations were not significantly different (p > 0.05) at both wet and dry seasons while hydrocarbon utilizing fungi showed significant differences (p < 0.05) at both seasons in both sediment and water samples. During the wet season, total faecal counts ranged from 5.0 to 10.0 x 105 CFU/g for sediment and 4.0 to 7.0x 105 CFU/g in water. In dry season, the concentration of hydrocarbon utilizing bacteria in the sediment ranged between 0.1 x 105 CFU/ml/g and 8.0 x 105 CFU/ml/g in wet season while in dry season, the concentration in water ranged between 0.1 x 105 CFU/ml/g and 6.0 x 105 CFU/ml/g at Abuloma. At Okwujagu, total heterotrophic bacteria counts in sediment ranged  from 0.1 to 8.0 x 105 CFU/g in dry season. This was higher than the range 0.1 to 6.8.0 x 105 CFU/ recorded in Abuloma, Okwujagu and Slaughter at dry season. The highest vibrio counts in water (11.0 x 105 CFU/ml) for wet and (10.0 x 105 CFU/ml) for dry seasons were recorded at Slaughter. In Oginiba, the feacal count recorded 3.0 x 105 CFU/ml in water during the wet season and 2.0 x 105 CFU/ml for dry season. Generally, there were significant differences (p < 0.05) in the bacterial concentrations in both sediment and water. This showed that different seasons favour the growth of certain microbial types.

scholarly journals The Effect of Using Different Detergents in Cleaning Cows' Udders on The Microbial Content of Produced Milk

2018 ◽  
Vol 10 (3) ◽  
pp. 47
Author(s):  
Nizar Issa Alrabadi ◽  
Kamel I. Sultan
Keyword(s):  
Public Health ◽  
Bacterial Count ◽  
Total Coliform ◽  
Total Bacterial Count ◽  
Traditional Food ◽  
Gastrointestinal Infections ◽  
Microbial Counts ◽  
Milk Samples ◽  
Microbial Analysis ◽  
Northern City

This study investigated the effect of different detergents used to clean cows' udders on the microbial content of the produced milk using twenty cows in Ajloun, a northern city in Jordan. The milking process was repeated from same cows on three successive days. On day 1, we milked the cows after cleaning their udders using water only. This was repeated on the two successive days. Thereafter, the cows were milked after cleaning their udders by a different detergent each day. The process was also repeated for three successive days for each detergent. Microbial Analysis was carried out on the collected milk samples. The results indicated that cleaning cows' udders before milking has improved the hygiene conditions and reduced the total bacterial count, total coliform, staphylococci and enterococci spp counts and the values of yeast and molds. Different detergents had different effects on the microbial counts. Finally, the effectiveness of the detergent differed according to its brand. Our findings are important to public health because milk has been a traditional food and ironically a very potent carrier of gastrointestinal infections, if contaminated.

Sign in / Sign up

Export Citation Format

Share Document