The Costs of Meeting a Drinking Water Quality Standard: The Case of Atrazine in Italy

1994 ◽  
pp. 151-171 ◽  
Author(s):  
Tore Söderqvist
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Standard ◽  
Drinking Water Quality ◽  
Water Quality Standard

scholarly journals Study of Compliance of Sealed Bottled Water with Nepal Drinking Water Quality Standard: A Case of Bhaktapur Municipality, Nepal

2019 ◽  
Vol 8 (3) ◽  
pp. 1-21
Author(s):  
Prasidha Raj Neupane ◽  
Iswor Bajracharya ◽  
Meera Prajapati ◽  
Hishila Sujakhu ◽  
Pramod Awal
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Quality Standard ◽  
Bottled Water ◽  
Drinking Water Quality ◽  
Water Quality Standard ◽  
Quality Of Water ◽  
Physico Chemical

Bottled water is generally considered safe for drinking. However, several studies have reported the substandard quality of bottled water. Physico-chemical assessment of ten different brands of bottled water distributed in Bhaktapur Municipality was carried out from January 2018 to March 2018. In total, one hundred bottled water samples consisting of ten different brands were collected randomly from various retail outlets. Eight selected physico-chemical and microbiological parameters were analysed following standard methods, and the results were compared with the Nepal Drinking Water Quality Standard (NDWQS) (2005). Out of one hundred samples, sixty-nine samples did not comply with the standard pH limit. Other physico-chemical parameters were found to comply with the standard though variations were observed in the concentrations among different brands. Microbial contamination was not found in any brands of the bottled water samples considered in this study. However, it is necessary to examine other contaminants such as heavy metals, minerals, and chemicals to know the overall quality of water. Moreover, the regulatory bodies are required to strictly monitor water processing companies for the maintenance of the quality of bottled water.

scholarly journals Analysis of Physiochemical Parameters to Evaluate the Drinking Water Quality in the State of Perak, Malaysia

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
N. Rahmanian ◽  
Siti Hajar Bt Ali ◽  
M. Homayoonfard ◽  
N. J. Ali ◽  
M. Rehan ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Standard ◽  
The State ◽  
Drinking Water Quality ◽  
World Health ◽  
Physiochemical Parameters ◽  
Health Organization ◽  
Public Health Protection ◽  
Physical And Chemical

The drinking water quality was investigated in suspected parts of Perak state, Malaysia, to ensure the continuous supply of clean and safe drinking water for the public health protection. In this regard, a detailed physical and chemical analysis of drinking water samples was carried out in different residential and commercial areas of the state. A number of parameters such as pH, turbidity, conductivity, total suspended solids (TSS), total dissolved solids (TDS), and heavy metals such as Cu, Zn, Mg, Fe, Cd, Pb, Cr, As, Hg, and Sn were analysed for each water sample collected during winter and summer periods. The obtained values of each parameter were compared with the standard values set by the World Health Organization (WHO) and local standards such as National Drinking Water Quality Standard (NDWQS). The values of each parameter were found to be within the safe limits set by the WHO and NDWQS. Overall, the water from all the locations was found to be safe as drinking water. However, it is also important to investigate other potential water contaminations such as chemicals and microbial and radiological materials for a longer period of time, including human body fluids, in order to assess the overall water quality of Perak state.

The behavior of inorganic constituents and disinfection by products in reverse osmosis water desalination process

1996 ◽  
Vol 34 (9) ◽  
pp. 141-148 ◽  
Author(s):  
Yasumoto Magara ◽  
Takako Aizawa ◽  
Shouichi Kunikane ◽  
Masaki Itoh ◽  
Minoru Kohki ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Standard ◽  
Water Desalination ◽  
Drinking Water Quality ◽  
Public Water Supply ◽  
The Public ◽  
Desalination Plants ◽  
Inorganic Constituents ◽  
Micro Pollutants

The countries and regions which suffer from the shortage of fresh water resources have developed sea and brackish water desalination plants to supply drinking water. The desalination process has usually been designed from the rejection ratio of salt to meet the level of soluble residue, chloride concentration for drinking purposes. The Japanese government revised the drinking water quality standards to enhance an appropriate drinking water quality management for many hazardous micro-pollutants in drinking water. Since there has not been sufficient studyies on the performance of R.O. desalination processes on micro hazardous constituents, the authors carried out a pilot plant study and field study of several desalination plants for the public water supply. Most of the constituents of R.O. filtrate meets the drinking water quality standard under the design and operational condition that to attain 99% of the salt rejection. However, Langlier's index, boron and bromoform produced different figures from other inorganic constituents and organic micro pollutants. The rejection ratio of boron ranged only from 43 to 78%. Although the rejectio ratio of boron can be improved by increasing the driving pressure and by adjusting pH, the filtrate cannot meet the drinking water quality standard. Chlorination in the R.O. desalination process produces bromoform that can be removed by the R.O. membrane. However, bromide ion in the filtrate can enhance the formation of disinfection byproducts, if the filtrate is mixed with fresh water, in the distribution system of the public water supply.

scholarly journals Brackish Water Treatment into raw water using Moringa oleifera leaves as an adsorber at Habibie Mustafa College, Keramat Kubah Village, Tanjungbalai Town

2020 ◽  
Vol 5 (2) ◽  
pp. 587-593
Author(s):  
Desi Ardilla ◽  
Khairunnisa Rangkuti ◽  
Muhammad Taufik
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Treatment ◽  
Brackish Water ◽  
Salt Content ◽  
Quality Standard ◽  
Drinking Water Quality ◽  
Raw Water ◽  
Filter Media ◽  
The Republic

This work aims to provide raw water from brackish water by reducing the salt content in brackish water to fresh water using the column method. Moringa leaves were chosen as the adsorber considering their high availability in partner locations. The location chosen was Habibie Mustafa's college in Tanjungbalai, North Sumatra. Brackish water treatment equipment is designed using a distillation system. In the column refining, the filter tubes used are made using PVC pipe with a height of 45 cm (Moringa leaves), a height of 35 cm (sand), and a height of 25 cm (charcoal). Each filter media in the tube is limited by using a palm fiber. The use of fibers is used as a barrier between the filter media so that the filter media remains in its position during the filtration process so that there is no mixing of the filter media in the filter tube. The results obtained are clean water that can be consumed according to drinking water quality standards. The results obtained were raw water with TDS specifications = 405 mg / L, turbidity 4 NTU, sulfate = 240 mg / L zinc = 2 mg / L, and Mn = 0.35 mg / L. The results obtained are still on the threshold of drinking water quality standard requirements by the Minister of Health of the Republic of Indonesia Number: 492 / Menkes / Per / IV / 2010 concerning drinking water quality requirements

scholarly journals Groundwater Chemistry at Deep Aquifer in Koyra: Khulna, Bangladesh

2021 ◽  
Vol 16 (2) ◽  
pp. 460-471
Author(s):  
Tusar Kumar Das ◽  
Molla Rahman Shaibur ◽  
Mohammad Mahfuzur Rahman
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Quality Standard ◽  
Water Sources ◽  
Groundwater Chemistry ◽  
Well Water ◽  
Deep Aquifer ◽  
Water Quality Standard ◽  
Tube Well

Koyra (Khulna District) is the coastal Upazila of Bangladesh and is very susceptible to salinity intrusion. The surface and shallow tube well water in the Upazila is naturally saline. The quality of subterranean tube well water in the deliberate area is hardly presented for different Unions of Koyra. Dakshin Bedkashi Union of Koyra is very saline prone. Therefore, the groundwater chemistry of Dakshin Bedkashi Union was determined to legalize if the groundwater is fit for drinking and irrigation or not. Spatially dispersed 30 water samples were collected from the deep aquifer (550 to 700 feet depth) in December, 2016 and analyzed for physico-chemical properties. The outcomes were compared with WHO, USEPA and BBS drinking water quality standard and with FAO standard for irrigation purpose. The pH varied from 6.73 to 8.33, indicating that the water samples were within the WHO drinking water quality standard. The TDS showed a long range variation (230.5 to 2052.0 ppm) with an average of 841.23 ppm, of which 33% of water sources exceeded BBS standard value. The mean value of salinity was 0.65 (±0.43) ppt and EC was 1,400.9 (±904.18) µS cm-1. The loads of key ions were ranked as Na+> Ca2+> Mg2+> K+ and HCO3-> Cl-> SO42-> NO3-> PO4-. The Piper diagram demonstrated that the existing hydro-chemical facies of groundwater were Na+-Cl--HCO3- and Na+-Ca2+-HCO3- type. The Gibbs diagram illustrated that the chemical arrangement of groundwater is mainly misrepresented by rock weathering. Silicate weathering was the profuse process along study area. The Wilcox diagram proved that the greater water sources were allowable to suspicious for irrigation. The core component analysis ensured that rock suspension and sea water intrusion was the primary source of ions in groundwater. The controlling factors of groundwater chemistry were typically related to geologic factors, while the anthropogenic factors have not any momentous effects.

scholarly journals STUDI KELAYAKAN AIR TANAH UNTUK KEBUTUHAN AIR MINUM DI KELURAHAN ROMANG POLONG KECAMATAN SOMBA OPU KABUPATEN GOWA

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Destiquama Destiquama ◽  
Hasriyanti Hasriyanti ◽  
Amal Amal
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Standards ◽  
Quality Standard ◽  
Drinking Water Quality ◽  
Biological Parameters ◽  
Water Quality Standards ◽  
Physical Chemical ◽  
The Republic

The quality of ground water for drinking water needs is based on physical, chemical and biological parameters of Romang Polong. The researcher took 5 kinds of water as samples based on land use by applying the Storet method. The water sample was tested in the field and analyzed in the laboratory. The results obtained are compared with the specified based on criteria of water quality which indicated that groundwater in the Romang Polong is suitable to be used as drinking water quality standards at the point 2, 3, and 4. However, at the point 1 and 5 are not feasible to be used as drinking water quality standards. But, it is still feasible to use for household needs such as bathing and washing. It might be happened because the physical, chemical, and biological parameters exceeded the maximum permissible threshold based on the drinking water quality standard according to Minister of Health of the Republic of Indonesia No. 492 / MENKES / PER / IV / 2010.

EVALUATION ON THE RURAL DRINKING WATER QUALITY IN A CENTRALIZED SUPPLIED AREA OF CHINA

2016 ◽  
Vol 15 (2) ◽  
pp. 435-442 ◽  
Author(s):  
Wendong Wang ◽  
Shan Song ◽  
Zixia Qiao ◽  
Qin Yang ◽  
Mengmeng Wang ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Drinking Water Quality

Drinking-Water Quality and Intestinal Infectious Diseases in a Colombian Department, 2010-2016

2020 ◽  
pp. 21-29
Author(s):  
Dora Cardona Rivas ◽  
Militza Yulain Cardona Guzmán ◽  
Olga Lucía Ocampo López
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Infectious Diseases ◽  
Disease Burden ◽  
Social Protection ◽  
Drinking Water Quality ◽  
World Health ◽  
The Social ◽  
Etiological Agents ◽  
Health Organization

Objective: To characterize the burden of intestinal infectious diseases attributable to drinking-water quality in 27 municipalities in the central region of Colombia. Materials and methods: A time-trend ecological study. The drinking-water quality of the National Institute of Health and the Institute of Hydrology, Meteorology and Environmental Studies was identified. The disease burden was calculated based on the mortality registered in the National Department of Statistics and the records of morbidity attended by the Social Protection Integrated Information System. The etiological agents reported in morbidity records and the observation of environmental conditions in the municipalities of the study were included. The disease burden was determined according to the methodology recommended by the World Health Organization (WHO).

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