scholarly journals Water source quality testing in Gezira State, Sudan, using the compartment bag test

2019 ◽  
Vol 9 (8) ◽  
Author(s):  
Eltigani Bashier Abdelgalili ◽  
Mohamadani Ahmed ◽  
Jaafar Adam ◽  
Samira Hamid ◽  
Traore Afsatou ◽  
...  

Abstract Although poor water quality is recognized as a public health threat, it has been little investigated in Sudan. In this paper, water sources in Gezira State, Greater Wad Medani locality, have been categorized as safe, intermediate safe and high-risk unsafe sources using the compartment bag test (CBT) to detect E. coli, which is an indicator of fecal contamination of water. The CBT is simple, portable and self-contained, and it can be done in the field environment. A total of 122 samples were collected from different water sources and included rivers, water treatment plant, boreholes/tube wells, hand pumps, public water taps, public water coolers, public elevated water tanks and household elevated water tanks. It was found that 69% (84/122) of investigated water sources were safe to drink. The sources most likely to be contaminated were those close to industrial points and factories or open sources exposed to pollution. The result showed that the highest level of contamination of water sources (high risk and unsafe) was observed in rural area (9.1%) followed by urban (5.7%) and peri-urban (1.6%). Frequent and routine qualitative analysis of water sources using CBT is recommended to improve human health and hence the country’s development.

Water tanks are the capacity booths for putting away water. Raised water tanks are built to be able to deliver required head with the purpose that the water will movement affected by gravity the development exercise of water tanks is as antique as enlightened guy. The water tanks project has an firstrate want as it serves ingesting water for amazing populace from exceptional metropolitan urban groups to the little population dwelling in cities and towns. The smaller than ordinary project is led for a time of 15 days to have total all the way right down to earth information on unique tactics and issues appeared within the field. An change issue like construction factors, layout Parameters, information of Formwork, information of aid, process of Water treatment Plant and Execution had been controlled over the span of our smaller than regular undertaking."improved water tanks" via raising water tank, the enlargement upward push makes a conveyance strain at the tank outlet. The profile of water tanks begins offevolved with the utility parameters, consequently the type of materials applied and the form of water tank become directed by way of approach of those factors: 1. Vicinity of the water tank (inner, out of doors, over the floor or underground). 2. Volume of water tank need to preserve. 3. What the water may be utilized for? Four. Temperature of territory wherein might be located away, fear for solidifying. Five. Weight required conveying water. 6. How the water to be conveys to the water tank. 7. Wind and quake plan contemplations allow water tanks to endure seismic and excessive wind occasions


2018 ◽  
Vol 73 ◽  
pp. 03012
Author(s):  
Solikhul Abdi ◽  
Sudarno

Pucang Gading Housing Complex is an area within the Village Batursari, District of Demak with a population of 2018 as many as 44,257 inhabitants. Raw water service system Mranggen Unit is divided into 5 areas of service (service area Mranggen, Batursari I, Batursari II, Batursari III and Kebon) which utilize raw water source of water treatment plant (IPA Waru) and 8 Wells In a total discharge of 120 liter/second. The number of home connections in Pucang Gading area is currently 3,374 house connections, with a total water usage 14.25 liter/second Water discharges from clean water sources in Pucang Gading region are currently not maximally available to supply water to Pucang Gading service area. In this research will know the problems and readiness that exist by looking from the achievement of Medium Term Development Plan of Demak Regency Year 2016-2021. This research uses SWOT analysis method that is internal and external factors. The selection of raw water sources for drinking water should pay attention to aspects of quality, quantity and continuity. Demak Regency has the potential of surface water either river/ reservoir/dam. The problems and challenges of drinking water supply include issues of safe access to water supply, and regulation of groundwater utilization for the community.


Author(s):  
Zakaria Mohamed

Cyanobacteria are a group of phytoplankton of marine and freshwaters. The accelerated eutrophication of water sources by agricultural and industrial run-off has increased the occurrence and intensity of cyanobacterial blooms. They are of particular concern because of their production for potent hepato-, neuro-, and dermatoxins, being hazardous to human health. Dissemination of knowledge about cyanobacteria and their cyanotoxins assists water supply authorities in developing monitoring and management plans, and provides the public with appropriate information to avoid exposure to these toxins. This chapter provides a broad overview and up-to-date information on cyanobacteria and their toxins in terms of their occurrence, chemical and toxicological characteristics, fate in the environment, guideline limits, and effective treatment techniques to remove these toxins from drinking water. Future research directions were also suggested to fill knowledge and research gaps, and advance the abilities of utilities and water treatment plant designers to deal with these toxins.


2009 ◽  
Vol 7 (4) ◽  
pp. 581-589 ◽  
Author(s):  
Floyd J. Frost ◽  
Kristine Tollestrup ◽  
Melissa Roberts ◽  
Twila R. Kunde ◽  
Gunther F. Craun ◽  
...  

This study evaluated whether occurrence of acute gastrointestinal illnesses declined after filtration and ozonation were added to a previously unfiltered, chlorinated high-quality surface water source in a northwest United States city. Enteric and other illnesses were recorded for two 6-month periods for control and intervention sites in the same city. During phase 1, chlorinated, unfiltered drinking water for both sites was obtained from protected watersheds. During phase 2, the intervention site received chlorinated, filtered and ozonated drinking water. The water was not altered in the control site. No overall differences were found in the risk of any of the illnesses after the new water treatment plant was completed. There was a significantly increased risk of diarrhoea and highly credible gastrointestinal illness in participants with three or more episodes of the same type of illness during phase 1.


2019 ◽  
Vol 27 (1) ◽  
pp. 354-365
Author(s):  
Hussein Hamid Emran Al-Husseini

The important of ground water is increasing in the future as a source of fresh waters; in addition, many countries contain a number of water treatment plants to treat surface water. Using conventional treatment plant in the cities to treat ground water will decrease the cost of ground water treatment and may be help to depend on both surface and ground water supplies. This paper studied the ability of treating ground water by conventional water treatment. The quality of the ground water source is studied in the mention area during study period. The chemical quality of ground water is tested and there is within the standards of drinking water except iron.  The conventional treatment was enhancing quality of treated water by increment of dissolved oxygen concentrations toward optimum value. Water treatment plant was effective for removal of iron from ground water of about 50%, in addition there is an effect of conventional treatment on sulfate removal (sulfate may be increase above standards in some ground water sources). The statistical analysis of data shows there is a correlation between quality parameters of raw and treated water and between iron and sulfate of treated water in the correlation matrix. In addition, confidence test was applied on the correlation coefficients using fisher's transformation .The analysis shows, that there is a positive period (0.244, 0.941) of confidence of 95% of correlation factors of iron and sulfate.


2021 ◽  
Author(s):  
Zhiyuan Liu ◽  
Min Rui ◽  
Shuili Yu

Abstract The occurrence of titanium dioxide nanoparticle (TNP), an emerging contaminant, in Taihu Lake of China was investigated. Ti was present at a concentration of 224 ± 59 µg/L in the water source of east Taihu Lake. Approximately 0.19% of the Ti-containing matter was at the nano-scale. Scanning Electron Microscope analysis verified the existence of Ti-containing components, such as TiOX and FeTiOX. Furthermore, Ti K-edge X-ray absorption near-edge structure spectroscopy was used to detect the phase composition of nano-scaled Ti-containing matter. The spectra showed the three characteristic peaks of TiO2 in the samples, suggesting the occurrence of TNP in Taihu Lake. A least-squares linear combination fitting analysis indicated that the TNP concentration in the water source was 0.86 µg/L, with a crystal composition of 0.44 ± 0.1 µg/L amorphous, 0.14 ± 0.03 µg/L anatase and 0.28 ± 0.06 µg/L rutile. The removal performance of the TNP at a full-scale conventional drinking water treatment plant indicated that 58.8% of TNP was removed via coagulation/sediment, sand filtration and disinfection/clear water reservoir. The coagulation/sediment process accounted for approximately 76.6% of the total removed TNP. The finished water contained 0.33 µg/L TNP with a crystal composition of 0.24 ± 0.13 µg/L anatase and 0.09 ± 0.05 µg/L rutile. This study is the first that reported the presence and transport of TNP in a drinking water treatment system.


Teras Jurnal ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 413
Author(s):  
Wesli Wesli ◽  
Fasdarsyah Fasdarsyah ◽  
Indra Kurniawan ◽  
Khairullah Yusuf ◽  
Said Jalalul Akbar ◽  
...  

<p align="center"><strong>Abstrak</strong></p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">Pelayanan kebutuhan air di wilayah IKK Bukit Oregon kurang memadai diduga jaringan pipa menjadi pokok masalahnya sehingga berdasar hal tersebut maka diperlukan evaluasi jaringan perpipaan air minum dan design dibuat dengan menggunakan software Aplikasi Watercad V8-I dan ingin diketahui seberapa besar kebutuhan debit pada proyeksi tahun 2030 termasuk kapasitas pompa dan jenis pipa transmisinya. Hasil pengamatan secara langsung di wilayah studi pada pelayanan terdapat permasalahan yang terjadi pada pipa transmisi, yaitu pipa dari intake (sumber air baku utama) menuju ke Instalasi Pengolahan Air (IPA) yang akan di distribusikan ke masyarakat. Permasalahan yang terjadi adalah pipa induk tersebut mengalami kebocoran akibat umur teknis pipa yang sudah tua. Meningkatnya jumlah penduduk sama halnya semakin meningkatnya pemenuhan akan kebutuhan air bersih. Permasalahan tersebut harus ditanggulangi dengan pergantian pipa dengan jenis dan diameter yang tepat serta kapasitas pompa yang sesuai hasil menggunakan software Watercad V8-i. Dari hasil perhitungan analisa pertumbuhan penduduk pada tahun 2030 dengan jumlah pelanggan 96.770 jiwa kebutuhan air mencapai 102,476 liter/detik. Sistem transmisi menggunakan sistem pompa dengan kapasitas terpasang 90 liter/detik. Jenis pipa yang dipakai untuk pipa transmisi menggunakan pipa HDPE dengan diameter 350 mm.</p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">Kata kunci: evaluasi, <em>air bersih,</em><em> </em><em>perpipaan, pompa, Watercad V8-i </em><em></em></p><p><em> </em></p><p align="center"><strong> </strong></p><p align="center"><strong>Abstract</strong></p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">The service for water needs in the IKK Bukit Oregon area is inadequate, it is suspected that the pipeline network is the main problem, so based on this, it is necessary to evaluate the drinking water piping network and the design is made using the Watercad V8-I application software and wants to know how much the demand for discharge in the 2030 projection includes pump capacity and type of transmission pipe. The results of direct observations in the study area on the service there are problems that occur in the transmission pipe, namely the pipe from the intake (main raw water source) to the Water Treatment Plant (IPA) which will be distributed to the community. The problem that occurs is that the main pipe has a leak due to the technical age of the pipe which is old. The increasing population is the same as the increasing fulfillment of clean water needs. These problems must be overcome by changing the pipe with the right type and diameter and the pump capacity according to the results using the Watercad V8-i software. From the calculation results of population growth analysis in 2030 with the number of customers 96,770 people, water needs reach 102,476 liters/second. The transmission system uses a pump system with an installed capacity of 90 liters/second. The type of pipe used for the transmission pipe uses HDPE pipe with a diameter of 350 mm.</p><p class="11daftarpustaka"> </p><p class="11daftarpustaka">Keywords: evaluation, clean water, piping, pump, Watercad V8-i</p><em></em><em> </em><em></em><em></em>


1993 ◽  
Vol 28 (6) ◽  
pp. 65-74 ◽  
Author(s):  
Z. Žáková ◽  
D. Beránková ◽  
E. Kocková ◽  
P. Križ ◽  
H. Mlejnková

Water quality in the Vír Reservoir (the main water source in the Svratka watershed) and its tributaries was investigated in terms of the physico-chemical, biological and microbiological characteristics during 1988-1990. The results of investigation showed that the Vír Reservoir in spite of its great depth (more than 60 m) and favourable morphology 30 years after impoundment has become more eutrophic. Long-term changes were characterized by log normal function which demonstrated the increase of the nitrate concentration from the level 5-10 mg.l−1 at the beginning of this period to the present concentrations, which are more than 20 mg.l−1 in the raw water to the drinking water treatment plant and also in the inflow water (the Svratka River in Dalečín). In a similar way there was an increase in average concentrations of PO43−. The main indicators of the accelerated eutrophication of the Vír reservoir are the occurrence of water blooms of blue-green algae, the summer oxygen depletion and increased concentrations of Fe and Mn in the hypolimnion, while pH and dissolved oxygen increased in the epilimnion. The relationship between concentrations of nitrates and application rates of mineral nitrogen fertilizers in the watershed was highly significant. From this evaluation we drew the conclusion that the main cause of eutrophication is the increased input of nutrients from the watershed.


2021 ◽  
Author(s):  
Oki Maulidani ◽  
Veronica Maldonado ◽  
Juan Gallardo ◽  
Victoria Zurita ◽  
Cristian Giol ◽  
...  

Abstract Waterflooding project has been implemented in Shushufindi-Aguarico mature field since late 2014. Having a compatible and cost-effective injected water is one of the key elements to ensure the success of this project. In perspective, water treatment plant was constructed in 2014 during pilot stage while water sources wells were completed in 2019 as an alternative source of injected water at the expansion stage of waterflooding project. This paper presents the comparison between both systems used as part of the water injection strategy: the Water Injection Plant (WIP) and Water Producer Wells (WPW). A complete system of water treatment plant is located in one of the production stations. The process basically starts by collecting water from production wells and workovers then treating it mechanically using a flotation unit and chemically to remove solid as well as oil contents. The water is then injected into injection wells with the help of horizontal pumping system (HPS). In the system of water source wells, two wells were converted to produce water from Hollin water reservoir utilizing electrical submersible pumps (ESP). The water is directly injected without any treatment into injection wells given the analysis of its fluid properties. The initial investment for water treatment plant is four times compared to water source well providing equal injection capacity where the operational cost per barrel of injected water is similar. The operational cost for water treatment plant refers to surface facilities maintenance and daily chemical consumption while for water source well it refers to associated cost of ESP reparation and workover operation. The average run-life of the water source wells in Ecuador Oriente basin is 1,200 days. The biggest challenge of water treatment plant is dealing with solid content whereas for water source well is on how to ensure integrity of the well and the flowline system in the high temperature and CO2 environment. Continuous improvements have been performed to address these challenges such as chemical treatment adjustments, real-time surveillance of injection wells, and modification of flowline system. Water treatment plant not only provides compatible water for injection wells but also supports water handling capacity as it utilizes water from production wells. In the other hand, compatible and clean water from Hollin water reservoir is the main benefit of water source wells. This paper will outline the pros and cons of water treatment plant and water source well based on field evaluation in Shushufindi-Aguarico field. It outlines the operational experience and lessons learned that can be used as a guide and reference when evaluating water sources for a waterflooding strategy. Economical analysis as well as continuous improvement will also be presented in this paper to deliver an integrated analysis.


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