scholarly journals Field application of the Micro Biological Survey method for the assessment of the microbiological safety of different water sources in Horn of Africa and the evaluation of the effectiveness of Moringa oleifera in drinking water purification

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Francesca Losito ◽  
Alyexandra Arienzo ◽  
Daniela Somma ◽  
Lorenza Murgia ◽  
Ottavia Stalio ◽  
...  
Keyword(s):  
Developing Countries ◽  
Drinking Water ◽  
Bacterial Load ◽  
Water Sources ◽  
Survey Method ◽  
Horn Of Africa ◽  
Water Safety ◽  
Microbiological Safety ◽  
Biological Survey ◽  
Different Water Sources

Water monitoring requires expensive instrumentations and skilled technicians. In developing Countries as Africa, the severe economic restrictions and lack of technology make water safety monitoring approaches applied in developed Countries, still not sustainable. The need to develop new methods that are suitable, affordable, and sustainable in the African context is urgent. The simple, economic and rapid Micro Biological Survey (MBS) method does not require an equipped laboratory nor special instruments and skilled technicians, but it can be very useful for routine water analysis. The aim of this work was the application of the MBS method to evaluate the microbiological safety of different water sources and the effectiveness of different drinking water treatments in the Horn of Africa. The obtained results have proved that this method could be very helpful to monitor water safety before and after various purification treatments, with the aim to control waterborne diseases especially in developing Countries, whose population is the most exposed to these diseases. In addition, it has been proved that <em>Moringa</em> <em>oleifera</em> water treatment is ineffective in decreasing bacterial load of Eritrea water samples.

scholarly journals Field application of the Micro Biological Survey method for the assessment of the microbiological safety of different water sources in Tanzania

2018 ◽  
Vol 9 (3) ◽  
Author(s):  
Matteo Gionfriddo ◽  
Beatrice Nicolosi ◽  
Lorenza Murgia ◽  
Alyexandra Arienzo ◽  
Laura De Gara ◽  
...  
Keyword(s):  
Developing Countries ◽  
Tap Water ◽  
Water Sources ◽  
Field Application ◽  
Alternative Methods ◽  
Survey Method ◽  
Water Safety ◽  
Biological Survey ◽  
Enteric Infections ◽  
Dug Wells

Access to safe water is stated within human rights as essential for life, as water can be a source of severe enteric infections threatening human health, in particular children from Developing Countries. Along with reference methods, need is pressing for alternative methods to flank reference ones to improve water safety on-site monitoring and in the absence of scientific facilities or even electricity supply. The Micro Biological Survey (MBS) method has already been successfully applied to water safety assessment in Developing Countries. A total of 18 water samples were collected from different sources (rivers, dug wells, tap water) within the Rukwa Region, Tanzania, and underwent analysis for Total Coliforms following the MBS method. Globally, rivers showed more frequently contamination, followed by dug wells, tap water and tanks. Results demonstrate the need for continuous monitoring of water sources, even in difficult frameworks lacking electric supply, to help improve control over water quality, possibly using alternative methods to simplify existing protocols.

scholarly journals Physico-Chemical and Optical Examination of Water Stored in Copper Vessels

2019 ◽  
Vol 9 (2S2) ◽  
pp. 278-281
Keyword(s):  
Drinking Water ◽  
Low Cost ◽  
Water Sources ◽  
Chemical Mechanism ◽  
Vis Spectroscopy ◽  
Chemical Studies ◽  
Optical Examination ◽  
Research And Education ◽  
Sudden Decrease ◽  
Different Water Sources

Storage of water in copper vessels is traditionally followed in past and many reports have been published about the antibacterial growth in copper vessel. It is essential to determine the water purity for drinking purposes in daily life through low cost approach. In the present work an attempt has been made to investigate the effect of storage of different drinking water in copper vessel for two week. The corresponding values of pH and TDS meter for different waters were recorded and analyzed. The optical properties such as UV-Vis and Raman studies along with physio-chemical parameters like pH and TDS were analyzed for 3weeks against different water sources kept in copper vessel. The Raman spectra provide information for different water sources. Similarly the UV-Vis spectroscopy provide the peak variation for different waters, however the effect of days and copper concentration analysis are in investigation. The Results obtained in this study reveals that water stored in copper vessel reduces the TDS level of bore water Tirunelveli and maintains its pH at 8.0 after 2 weeks. The bore water in Krishnan kovil (virudhunagar district) shows no variation in TDS after 1 week, but in 2nd week there is sudden decrease in TDS from 1050 to 944ppm and pH level decreases to 8.3 showing alkaline nature. Throughout the experiment we have noticed that the colour of copper vessel changes in case of bore water. For variation in studies we have also studied the pH and TDS of Drinking water at Kalasalingam Academy of Research and Education. There is no change in colour of copper vessel and TDS and pH remains same up to one week, but in second week TDS increases to 100ppm while the pH remain constant at 7.4. These studies will help future researcher for designing of copper vessels and will help them to analyze the Physio-chemical studies of water. Moreover the chemical mechanism and reaction between copper vessel and leaching out of copper into water data base will be generated in future based on UV and Raman studies.

scholarly journals PATTERN OF WATER SUPPLY IN RELATION TO DIFFERENT WATER SOURCES IN METROPOLITAN KANO

2020 ◽  
Vol 4 (3) ◽  
pp. 690-696
Author(s):  
Abubakar Hadiza Suleiman
Keyword(s):  
Drinking Water ◽  
Local Government ◽  
Water Supply ◽  
Research Work ◽  
Water Sources ◽  
Water Supply Systems ◽  
Sampling Techniques ◽  
Alternative Sources ◽  
Supply Systems ◽  
Different Water Sources

The study carried out on pattern of water supply in relation to different water sources in metropolitan Kano was aimed to assess the pattern of water supply in the area. Eight local government areas were found in the area but six local government areas were selected in conducting the research work. The selected local government areas included dala, Fagge, Kano Municipal, Gwale, Tarauni, Nassarawa. The research work was conducted through the following methods of data collection, (questionnaire and interview). Krecjie and morgan sampling techniques was adopted in administering the questionnaire, because it was the best sampling techniques that suited the study. The result of the findings indicated that ground water sources are now the major sources of water used in the study area, pipe borne water was generally inadequate. Dala, Kano Municipal, Fagge and Gwale were the areas mostly affected with scarcity of pipe borne water. Other sources of water for household usage included water from vendors and water supply Tankers. Some sources of water were founded inactive (that is sources of water producing less or no water due to some problems). Most people in the area depend on sachet water as their source of drinking water. Finally, in order to overcome some of the problems of water is their source of drinking water. Finally, in order to overcome some of the problems of water supply it was recommended that there should be alternative sources of power, regular maintenance, train of manpower, and effective management of water supply systems.

scholarly journals Water sanitation, hygiene and the prevalence of diarrhea in the rural areas of the delta region of Myanmar

2021 ◽  
Author(s):  
Shane Htet Ko ◽  
Hiroshi Sakai
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Rural Areas ◽  
Urban Areas ◽  
Total Population ◽  
Quality Parameters ◽  
Water Sources ◽  
Water Safety ◽  
Household Water Treatment ◽  
Drinking Water Sources

Abstract Myanmar is an agriculture-based country with 70% of the total population residing in rural areas. Around half of the total population in Myanmar has to consume water from unimproved sources. The prevalence of diarrhea due to contaminated drinking water is high even in urban areas. The urban community may expect the provision of municipal water supply in the near future if the current revolution in the country succeeds. However, the rural areas have lesser or no chance to get quality water because of a lot of other prioritized tasks. Household water treatment is encouraged to be implemented as one of the national water safety plans for rural water supply in Myanmar. This study explored the diarrhea prevention awareness of the rural community using a questionnaire survey. The microbial quality parameters of drinking water sources were also examined. Fecal coliform contamination was detected in all examined drinking water sources. A significant association was found between drinking untreated water and the occurrence of diarrhea. The percentage of people who applied the diarrhea preventive measures was low. Even if they knew how to prevent the disease, very few people applied the measures in reality. Therefore, measures to cause behavioral change should be initiated, together with awareness raising, to promote diarrhea prevention in the community.

Risk assessment on disinfection by-products of drinking water of different water sources and disinfection processes

2007 ◽  
Vol 33 (2) ◽  
pp. 219-225 ◽  
Author(s):  
Wuyi Wang ◽  
Bixiong Ye ◽  
Linsheng Yang ◽  
Yonghua Li ◽  
Yonghua Wang
Keyword(s):  
Risk Assessment ◽  
Drinking Water ◽  
Water Sources ◽  
By Products ◽  
Different Water Sources

scholarly journals MICROBIOLOGICAL SAFETY OF WATER IN PRIMARY PRODUCTION OF FOOD

2020 ◽  
Vol 20 (1-2) ◽  
Author(s):  
Bojan GOLIĆ́ ◽  
Vesna KALABÁ ◽  
Tanja ILIĆ́
Keyword(s):  
Drinking Water ◽  
Water Safety ◽  
Healthy Life ◽  
E Coli ◽  
Microbiological Safety ◽  
Continuous Delivery ◽  
Number Of Microorganisms ◽  
Safety Of Drinking Water ◽  
Intestinal Enterococci

Health-safe water is the basis of a healthy life and is one of the priorities in primary health care. Water safety involves microbiological, physicochemical and radiologically clean water, a sufficient amount of water and continuous delivery. Due to the great epidemiological importance of water, whose impact is immediate and through which various infectious diseases can be transmitted harmful and dangerous chemicals can be introduced, it is necessary, in order to protect human health, to control the safety of drinking water. The aim of this study was to determine the microbiological safety of water used for watering animals, as well as in the food industry. Based on data collected from year 2015 to 2017, 26.20% water samples did not meet requirements defined by Regulation on hygienic quality of drinking water. The greatest number of samples was unsatisfactory due to an increased number of microorganisms at the temperatures of 22°C (63.40%) and 37°C (54.90%), and when it comes to pathogenic microorganisms due to the presence of intestinal enterococci (58.80%). The lowest risk of the presence of coliforms and E. coli is in the water from the water supplying network, while it's much higher presence is in wells and in the water from the wellspring. The presence of intestinal enterococci is significant in all three types of drinking water, while the presence of sulphite-reducing clostridia was observed only in the wellspring water.

Excess propagation and biological control of zooplanktonic Cyclops in drinking water sources

2005 ◽  
Vol 52 (8) ◽  
pp. 151-159 ◽  
Author(s):  
F.-Y. Cui ◽  
T. Lin ◽  
D.-M. Liu ◽  
L.-Q. Zhang
Keyword(s):  
Water Quality ◽  
Biological Control ◽  
Drinking Water ◽  
Biological Effects ◽  
Silver Carp ◽  
Water Sources ◽  
Bighead Carp ◽  
Hypophthalmichthys Molitrix ◽  
Water Safety ◽  
Drinking Water Sources

Starting with the occurrence of Cyclops in drinking water sources and its danger to drinking water safety, we extensively investigated the nature of its excess propagation by analyzing the effect of living space and predator pressure in the food chain on its survival. Then we developed an ecological project using fish biomanipulation, different to the conventional fishery culture technique, to control excess propagation of Cyclops. The control effects on Cyclops of four species of fish were investigated experimentally at a stocking density of 30g/m3 of water. Results showed that the food habit of the fish had a significant influence on the biological control of Cyclops. The propagation of Cyclops could be controlled effectively and also the water quality improved simultaneously by stocking filter-feeding fish, such as silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis). However, herbivorous Ctenopharyngodon idellus and omnivorous Cyprinus carpio had no obvious biological effects on controlling the growth of Cyclops and restoring water quality. The results further proved that under conditions of proper poly-culture densities of silver carp and bighead carp, the number of Cyclops might be controlled at very low levels and eutrophication might be abated by removing nutrients from the water body.

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