Water quality in areas around Galuga Landfill, Bogor Regency, West Java

The research is aimed to analyze leachate, surface water and ground water characteristics around Galuga landfill site, Bogor District. Water samples had been taken in dry season of 2014 and in the end of rainy season of 2015 from several sites in areas around Galuga landfills which included leachate water, surface water, and ground water. Leachate, surface water and ground water had temperature and pH in normal ranges; whereas nitrate and Pb contents were high to very high levels, especially in site adjacent to waste piles. The concentrations decreased in line with increasing distance from waste piles. Higher content of nitrate in leachate occurred in dry season, but in well water it was found in rainy season. Meanwhile, Pb content in well water were high, both in dry and rainy seasons. Concentrations of nitrate and Pb in leachate water were higher than wastewater quality standard, so that the leachate water were not safe to be discharged directly to natural water body. The high content of nitrate and Pb caused the well water unsuitable to be consumed without water treatment processing.

ОЦІНКА ЯКОСТІ ПИТНИХ ВОД З РІЗНИХ ДЖЕРЕЛ ВОДОПОСТАЧАННЯ

Purpose. Monitor different sources of water supply in a particular region of Ukraine. Methodogy. To monitor the drinking water of the selected settlement of Cherkasy region, water from the water supply network (10 samples), water from the pump room (1 sample) and water from wells (26 samples) were selected and analyzed for 20 main chemical indicators in accordance with the requirements of DSanPiN 2.2.4-171-10 and DSTU 7525: 2014. Findings. It was found that tap water has a slight excess of iron and turbidity in 5 samples. The water does not contain aluminum, ammonium ions, nitrates, nitrites, residual amounts of free and bound chlorine and chlorination by-products. The sample of water from the pump room has a slight excess of silicon and salts of general hardness – calcium and magnesium ions. Water from the pump room in chemical composition (pH, dry matter, alkalinity, chlorides, sulfates, sodium) and the content of microcomponents is very similar to tap water, it has a slightly higher "color" and "turbidity", but the content of petroleum products and iron does not exceed drinking standards. water – 0.1 mg / dm3 and 0.2 mg / dm3, respectively. In this case, well water is the most unsuitable for drinking purposes. It was found that the largest excess of normalized values in these waters was observed when determining the dry residue (up to 4 standards), hardness (up to 5 standards), nitrate concentration (up to 9 standards).Originality. Monitoring of drinking water in the selected settlement of Cherkasy region and the analysis of the suitability of tap water, pump room water and well water for drinking needs.Practical value. The peculiarities of the chemical composition of drinking water supply facilities of this settlement have been established, in particular, much attention is paid to the determination of microelements and persistent organic toxicants at the level of their maximum permissible concentrations. The analysis of the obtained results testifies that the quality of tap water and pump room meets the current hygienic standards in terms of organoleptic parameters, general mineralization, hardness, alkalinity, content of organic components, and water in almost all wells does not meet.

Optimasi peningkatan kualitas air sumur gali melalui penggunaan tawas (Aluminium Potassium Sulfate) terhadap Escherichia coli

Background: well water provide water that comes from a layer of soil that is relatively close to the ground surface, therefore it is easily exposed to contamination through seepage. In general, seepage comes from human excreta, latrines or latrines and animals, as well as from well waste itself, either because the floor or the sewerage are not impermeable to water. The condition of construction and the way the well water is drawn can also be a source of contamination, for example wells with open construction and drawing water with a bucket. One of the fecal contamination bacteria found in well water is Escherichia coli. Alum (Aluminum sulfate) is one of anti-microbial.Objective: To determine the effect of alum with concentrations of 5%, 10% and 15% on the amount of Escherichia coli in well waterMethod: explanatory research (explanatory research) which is to explain the relationship between variables through comparison and hypothesis testing, using a quasi experimental design method with the experimental design used in this study is Completely Randomized Design with 3 repetitions.Results: The results of the ANOVA test on the content of E. coli with various concentrations obtained a P value of 0.000 an alpha value of 0.05, indicating that there was a significant difference in the observed concentrations.Conclusion: Alum with concentrations of 5%, 10% and 15% affected the number of Escherichia coli in well water. The higher the concentration of alum, the better in inhibiting the growth of E.coli bacteria in well water.Conclusion: Alum with concentrations of 5%, 10% and 15% affected the number of Escherichia coli in well water. The higher the concentration of alum, the better in inhibiting the growth of E.coli bacteria in well water.

Evaluation of the river bank filtration technology in water purification in Iraq

Water purification of pollutants is a major challenge to the sustainable development of health in arid and arid regions of the world. Organization of water purification by the river bank filtration is a natural technique. Therefore, this survey was conducted to evaluate the shoulder of the Kufa River in purifying water from pollutants in an inexpensive and natural way. Six water samples were taken from six different locations of the river course, and six corresponding water samples were taken from the well locations near the river. The chemical analyzes of the samples were conducted during the month of December of the year 2020. The statistical analysis was carried out using the SAS program. The results showed that there were significant differences, as they showed the superiority of the concentration of phosphorous, cadmium, lead, copper, iron, manganese, chromium, molybdenum, and the total number of bacteria in river water compared to their concentration in well water. While it was observed that the concentration of total dissolved salts, sulfate, nickel and chlorine was superior in well water compared to river water. From this, it is clear that the effectiveness of the river shoulder technology in purifying the water of the Kufa River is low because the process of pumping water from wells is not continuous. It is assumed that to achieve the effectiveness of this technology, we need continuous months of pumping until the work of the river shoulder technology is achieved.

Improving the waterproofing efficiency by using a plugging compound

Increasing the efficiency of water shut-off works is one of the important tasks for the sustainable well operation. The article discusses the use of various plugging compositions for water inflow into a well isolating, their advantages and disadvantages, conditions of use, and presents the results of a study of the proposed composition. The composition of an aqueous solution of polyaluminium chloride and a suspension of gypsum anhydrite is considered. The composition contains 45-55 mass percent of 15-25 percent aqueous solution of polyaluminium chloride and 45-55 mass percent suspension of gypsum anhydrite at a water-solid ratio of 0.9. The technical result is an increase in the efficiency of water inflow into the well isolating by obtaining a homogeneous, dense plugging mass formed by mixing the components of the composition and gaining maximum strength over time. Keywords: well; water cut; isolation; water inflow; plugging mass; bottomhole formation zone; oil production; polyaluminium chloride; anhydrite.

Analisis Kualitas Fisik dan Bakteriologi (E-Coli) Air Sumur Gali Di Jorong Koto Kaciak Kanagrian Magek Kecamatan Magek

Jorong Koto Kaciak is a fairly high incidence of diarrhea contributed 36% of the incidence of diarrhea in Magek District. This study aims to analyze the Physical Quality and Bacteriology (E-Coli) of Dug Well Water in Jorong Koto Kaciak. This is a descriptive describing the physical quality and bacteriology of community dug well water. The populations were all community dug wells amount 153 units. By using cluster sampling, the sample was determined as much as 5 dug wells. Data collection used observation sheets and data analysis included univariate analysis which was carried out computerized. The results showed that 80% dug well water samples met the physical parameter requirements based on temperature, overall 100% community dug well water met the turbidity requirements <25 NTU / 100 ml, 60% dug well water samples met the physical requirements. odorless and tasteless and overall 100% dug well water samples do not meet the quality requirements of microbiology (e-coli)> 50 MPN / 100 ml It can be concluded that the community dug well water physically meets the quality standard requirements drinking water, but microbiologically it does not meet the health standard requirements, especially the quality of bacteriology, which can increase the risk of gastrointestinal infections for the community (diarrhea). For this reason, it is recommended that the community and health workers in Jorong Koto Kaciak pay more attention to the quality of dug well water.

Remote Sensing Could Predict Well Water Quality After Floods

After a flood, most people rely on officials to test public water sources. Private well owners are on their own, with little data to guide testing and treatment. New research seeks to change that.

Hygiene practices in abattoir and slaughter slab, determinants and assessment of abattoir and slaughter slab facilities in Abakaliki, Ebonyi State South-East Nigeria

Background: Workers in slaughterhouses engaging in unhygienic practices create conducive environments for zoonoses and meat contamination. Knowledge of hygiene practices and their determinants provides evidence for the design of targetedinterventions.Objectives: We investigated knowledge and determinants of hygiene practices among workers in slaughterhouses and assessed slaughterhouse facilities in Abakaliki.Methods: Workers in the Central Meat Market abattoir and Slaughter slab Abakaliki were interviewed in a cross-sectional quantitative study to ascertain their knowledge and hygiene practices while abattoir facilities were assessed using a checklist. Associations were analysed with Chi-square while predictors were determined using binary logistic model.Results: We interviewed 188 workers 75.5% and 85.6% of whom had good knowledge and good hygiene practices respectively. However, hand-washing before and after handling meat (44.1%), cleaning work surfaces with soap and water (45.2%) and sanitary disposal of waste (6.9%) were suboptimal. Knowledge of good hygiene practice was a predictor of good hygiene practice (AOR: 4.6, 95% CI: 2.0-11.3, p=0.001). Well water and borehole were present in both slaughterhouses and cold rooms were available in Central Meat market abattoir.Conclusions: The level of good knowledge was high and this was a determinant of good hygienic practices. Training on hygiene practices is recommended to prevent meat contamination and zoonoses. Keywords: Knowledge; Hygiene Practices; Abattoir; Slaughter slab; Determinants; Ebonyi; Nigeria.