scholarly journals Analysis of Water Treatment Plant Operation in Ilijaš Municipality

2021 ◽  
Vol 73 (02) ◽  
pp. 153-163
Author(s):  
Stjepan Lakusic
Keyword(s):  
Water Treatment ◽  
Water Samples ◽  
Settling Tank ◽  
Treatment Plant ◽  
Water System ◽  
Water Treatment Plant ◽  
Operating Efficiency ◽  
Second Line ◽  
First Line ◽  
Efficient Operation

The operation of the Karašnica Water Treatment Plant, forming part of the water system in Ilijaš Municipality, in Bosnia and Herzegovina, is analysed in the paper. Two distinct water treatment lines are described and analysed. The first line consists of an internal circular settling tank and rapid sand gravity filters, while the second line consists of an external circular settling tank and pressure filters. In order to evaluate operating efficiency, a tour of the system facilities was made, interviews with the employees were conducted, the existing documentation was examined, and additional physicochemical and bacteriological analyses of appropriate water samples were conducted. Following analysis of all available data, appropriate conclusions and significant recommendations were made toward more efficient operation of the water treatment plant.

scholarly journals Addressing the challenges in projects of water treatment plants and storage of potable water: a case studies of the water supply system in the state of Goiás, Brazil

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Anne Louise de Melo Dores ◽  
Felipe Corrêa Veloso dos Santos
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Treatment Plant ◽  
Water System ◽  
Treatment Phase ◽  
Water Treatment Plant ◽  
Operating Efficiency ◽  
Water Supply Systems ◽  
Storage Tanks ◽  
Variation Curve

AbstractTo elaborate efficient and economical water supply systems is one of the main objectives in the sanitation companies water system projects. In order to address the challenges faced in reaching this objective, this study aims to identify, first, the relation between the percentage of non-conformed samples in treated water and the inefficiency of the filtering units installed in the water treatment plant, and second, if, by drawing the consumption variation curve it is the most efficient way to predict the storage tanks volume—comparing necessary capacity, determined by the consumption curve, and installed capacity, predict by the outdated Brazilian normative. In order to reach answers for these two questions, this study measured the operating efficiency of the treatment plant as well as have set a quantitative comparison between the two dimensioning criteria for storage tanks volume present in the literature. As a result, the analysis provided the authors to detect a focus of contamination in the single-layered filtering units, limited by the filtering capacity of 2–6 m3/(m2 day), whilst operating at 333.13 m3/(m2 day). As well as to detect by the drawing of the consumption variation curve an oversize of 68% and 60% in the dimensioning of the studied storage tanks. With the results provided by this analysis approach, it was possible to efficiently detect and correct critical impairments in the treatment phase and to conclude that a long-term analysis should be drawn in order to affirm if the consumption variation curve is the best design methodology for the reservoirs.

Energy Use and Carbon Footprint for Potable Water Treatment in Haiderpur Water Treatment Plant, Delhi, India

2021 ◽  
Vol 18 (4) ◽  
pp. 37-44
Author(s):  
S.K. Singh ◽  
Artika Sharma ◽  
Darshika Singh ◽  
Ritika Chopra
Keyword(s):  
Energy Consumption ◽  
Water Treatment ◽  
Carbon Footprint ◽  
Fossil Fuels ◽  
Energy Use ◽  
Treatment Plant ◽  
Water System ◽  
Water Treatment Plant ◽  
Life Cycle Assessment Methodology ◽  
Engineering Project

With the advent of the environmentally conscious decision-making period, the carbon footprint of any engineering project becomes an important consideration. Despite this, the carbon footprint associated with water resource projects is often overlooked. Water production, its supply and treatment processes involve significant energy consumption and thus, are source of emissions of greenhouse gases (GHGs) such as carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4) which contribute to global warming. The emissions are not direct but come as a by-product of burning of fossil fuels to produce electricity to carry out these processes. Since water demand is continuous and keeps on rising, the quantification of carbon footprint associated with the water industry is vital. This paper studies and attempts to quantify the carbon footprint of one such urban water system, that is the Haiderpur Water Treatment Plant in Delhi, capital region of India by using the Life Cycle Assessment methodology and evaluate its performance from the point of view of energy consumption and make suggestions.

Monitoring On-Line and Control of Sludge Concentration in Sewage Treatment System

2013 ◽  
Vol 373-375 ◽  
pp. 897-901
Author(s):  
Lian Qing Yin ◽  
Chun Xiao Yin ◽  
Xue Zhou ◽  
Jia Liu
Keyword(s):  
Water Treatment ◽  
Sewage Treatment ◽  
Settling Tank ◽  
Great Influence ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Treatment System ◽  
On Line ◽  
And Control ◽  
Sludge Concentration

The reuse of industrial waste and urban sewage is a vital method for solving the shortage of water resource in China. Settling tank as a processing link in water treatment system widely used exercises a great influence on sewage treatment efficiency, and sludge emissions have a great influence on the operation of water treatment plant. Manual mud and mechanical dredge are widely used in most of the water treatment plants from the current domestic. The design used ultrasonic as a method for determination of sludge concentration, developped corresponding application control software, and finally completed a reasonable and feasible for settling tank intermittent discharge of sludge monitoring and emission control system.The result of our simulation system shows that the program operation is stable and maneuverability, and this set of monitoring on-line and control system has good application and development foreground.

scholarly journals The formation of aldehydes and ketones ozonation by-products and their variation through general water treatment plant in Hamadan, Iran

2015 ◽  
Vol 17 (4) ◽  
pp. 682-691 ◽  
Keyword(s):  
Water Treatment ◽  
Pyruvic Acid ◽  
Water Samples ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Methyl Glyoxal ◽  
Aldehydes And Ketones ◽  
Glyoxalic Acid ◽  
Treatment Train ◽  
By Products

<div> <p>The effect of pre-ozonation on the formation of four aldehydes (i.e. formaldehyde, acetaldehyde, glyoxal, methyl glyoxal) and two ketones (i.e. pyruvic acid and glioxalic acid) at the Beheshti water treatment plant in Hamadan, Iran were studied. Water samples were taken from the treatment plant at different points of the treatment train during September-January, 2013. The variation of formaldehyde, acetaldehyde, glyoxal, methyl glyoxal, pyruvic acid, and acid glioxalic concentration within treatment process were monitored in September and January. The results indicated that formaldehyde and acetaldehyde were the most abundant aldehyde species in the raw water. After pre-ozonation all of the aldehydes and ketones reached the maximum concentration. On the contrary, results show that the coagulation-filtration process was beneficial to the removal of aldehydes and ketones. Also, the results indicated that the level of aldehydes was increased after post chlorination. The percent increase was 52.3, 34.6, 12.1, 26.8 and 38% for formaldehyde, acetaldehyde, glyoxal, methyl glyoxal and glyoxalic acid, respectively, in September. Therefore, final chlorination led to increase in the formation of aldehydes in the pre-ozonated water. Ketones were not detected in the post-chlorinated water. Moreover, there was no correlation between total organic carbon (TOC) and total aldehyde and total ketone in water samples.&nbsp;</p> </div> <p>&nbsp;</p>

scholarly journals Chemical and ecotoxicological assessments of water samples before and after being processed by a Water Treatment Plant

2014 ◽  
Vol 9 (1) ◽  
Author(s):  
Regina Teresa Rosim Monteiro ◽  
Gabriela Helena Silva ◽  
Tâmara Guindo Messias ◽  
Sonia Claudia Nascimento Queiroz ◽  
Marcia Regina Assalin ◽  
...  
Keyword(s):  
Water Treatment ◽  
Water Samples ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Before And After

scholarly journals Investigation of water quality changes in drinking water supplied from Sitlee water treatment plant on River Tawi to Old Jammu City, Jammu, J&K, India

2018 ◽  
Vol 10 (2) ◽  
pp. 601-607
Author(s):  
Poonam Kundan ◽  
Deepika Slathia
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Treatment ◽  
Water Samples ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Quality Parameters ◽  
Faecal Coliform ◽  
Quality Changes ◽  
Distribution Point

In the present study, an attempt has been made to evaluate the water quality changes in River Tawi water treated at Sitlee water treatment plant, and supplied for drinking to Old Jammu City, Jammu, J&K, India. Water samples from the treated water unit of Sitlee water treatment plant and around ten houses from the distribution point (Old Jammu City) were analyzed monthly for various physicochemical parameters for a period of one year (February 2014 to January 2015). The study indicated deterioration of drinking water quality during its passage through the distribution network which has been attributed to the leakages and defects in the old pipe system supplying water to the Jammu city. Comparison of analyzed water quality parameters with the drinking water standards prescribed by World Health Organization (WHO) and Bureau of Indian Standards (BIS) indicated that parameters like DO (7.49-8.24mg/l), calcium(49.93-67.08mg/l), magnesium(16.14-25.21mg/l) and potassium(6.99-7.93mg/l) were almost nearing the desirable limits but were within the permissible limits and parameters like turbidity(3.5-8.17 NTU) and total hardness(78.87-120.50mg/l) were above the desirable limits in the water samples collected from the distribution point. The collected primary data for the thirteen water quality parameters has been used to calculate the Arithmetic Water Quality Index(WQI) which has shown monsoon increase with higher values at distribution point(65.65). One time microbial analysis (MPN/100ml) for total and faecal coliform has indicated presence of faecal coliform (<1/100ml) in water samples from eight households at distribution point which indicates contamination of water with human faecal matter during its passage through the distribution network. According to microbial standards laid down by Central Pollution Control Board (2008), water contaminated with faecal coliform is unfit for drinking without conventional treatment.

Integrated operation of drinking water treatment plant at Amsterdam water supply

2004 ◽  
Vol 4 (5-6) ◽  
pp. 263-270 ◽  
Author(s):  
Th.G.J. Bosklopper ◽  
L.C. Rietveld ◽  
R. Babuska ◽  
B. Smaal ◽  
J. Timmer
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Treatment Process ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
Integral Approach ◽  
Efficient Operation ◽  
Integral Control ◽  
Biological Activated Carbon

Water treatment plants are in general robust and designs are based on the performance of individual processes with pre-set boundary conditions. It is assumed that an integral approach of the entire treatment plant can lead to more efficient operation. Taking into account the developments in sensoring, automation and computation, it is a challenge to improve quality and reliability of the treatment plants and to make maximal use of the installed infrastructure, postponing new investments. At Amsterdam Water Supply (AWS), the first steps have been taken to come to an integral dynamic model of the total water treatment plant and the use of this model as an instrument for integral control. The parameters influencing the performance of the water treatment process will be incorporated in an overall model evaluating the goal factors quality (good, constant and reliable), quantity, costs, environmental impact (low residuals level), redundancy and flexibility. For several individual processes at AWS models have already been developed during the last few years, like models for the ozone process, biological activated carbon filtration and pellet softening. For the final calibration and validation pilot reactors are automated and on-line data are collected. Criteria for evaluation are developed to realise an optimal control of the individual processes in interaction with the goal factors of the total treatment process.

scholarly journals Efficiency of Traditional Water Treatment Plant and Compact Units in Removing Viruses

2015 ◽  
Vol 3 (3) ◽  
pp. 528-536
Author(s):  
Yehia A. Osman ◽  
Waled M. El-Senousy ◽  
Adel A. El-Morsi ◽  
Mohammed K. Rashed
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Water Samples ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Fecal Bacteria ◽  
Rt Pcr ◽  
Drinking Waters ◽  
Pollution Indicator ◽  
Drinking Water Samples

The fecal bacteria have been taken as the gold standard for water industry. However, the spread of viral gastroenteritis due to drinking water have given a momentum to a recent push by microbiologists to consider viruses as important pollution indicator as fecal bacteria. Therefore, we designed a study to evaluate the efficiency of two types of water purification systems: the traditional water treatment plant and two types compact units. Both systems produced drinking waters free of bacteria, chemical contaminants and mostly viruses free.  However, recent advances in molecular biology techniques, such as RT-PCR have detected Rotaviruses in chlorinated drinking waters resulted from all systems. The frequency of Rotaviruses since October 2010 till September 2012 in Shark El-Mansoura WTP in drinking water samples was 12.5% similar to raw water. While the compact unit at Depo Awam (American design) the frequency of Rotavirus was 16.6% in both raw and drinking water samples.  On the other hand the virus frequency in the raw and drinking water sample in El-Danabik unit (Egyptian design) were 12.5% and 4.16% respectively. Signifying failure of the chlorination process in removing viruses completely.  However, detection of Rotavirus genome in the drinking water samples does not means the presence of its infectivity. The infectious ability of the rotaviruses was confirmed by CC-RT-PCR in all positive samples, where viral RNA was not detected in the collected drinking water samples.  In conclusion RT-PCR and CC-RT-PCR techniques high lightened the need to include viruses as mandatory pollution indicator in water treatment plants. Int J Appl Sci Biotechnol, Vol 3(3): 528-536

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