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tanks volume—comparing necessary capacity, determined by the consumption curve, and installed capacity, predict by the outdated Brazilian normative.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.

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 Ozone water treatment in small water purification plants in Poland – Mszana Dolna case study

2019 ◽  
Vol 86 ◽  
pp. 00029
Author(s):  
Jan Pawełek ◽  
Tomasz Bergel
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Unit Cost ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Water Supply Systems ◽  
Water Production ◽  
Small Water ◽  
Filtration System ◽  
Hydraulic Load

The study analyzed possibilities of using ozone for water treatment in supply stations that provide water to small water supply systems. We analyzed a containerized water treatment plant (CWTP) in Mszana Dolna, located in Małopolska region, with a nominal production of 15 m3∙h-1. The plant uses a two step pressure filtration system with indirect water ozonation prior to active carbon filters. The treated water meets all the requirements set for drinking water. A cost analysis was also carried out to find out whether using this type of technology in small water supply stations in Poland is economically justified. The calculations were based on water production and its costs in 2017. The unit cost of water amounted to 0.59 and 0.77 EUR∙m3 for the variant taking into account a nominal water production and a hydraulic load of the station in 2017 that reached 58.7% f a nominal load.

Lifeline Aspects of the 2004 Niigata Ken Chuetsu, Japan, Earthquake

2006 ◽  
Vol 22 (1_suppl) ◽  
pp. 89-110 ◽  
Author(s):  
Charles Scawthorn ◽  
Masakatsu Miyajima ◽  
Yusuke Ono ◽  
Junji Kiyono ◽  
Masanori Hamada
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Electric Power ◽  
Treatment Plant ◽  
Water System ◽  
Water Treatment Plant ◽  
Water Systems ◽  
Raw Water ◽  
Notable Feature ◽  
Wastewater Systems

After landslides, damage to lifelines was the next most notable feature of the 23 October 2004 Niigata Ken Chuetsu, Japan, earthquake ( Mw=6.6). Roads and highways sustained damage at over 6,000 locations; rail lines, water systems, and wastewater systems sustained major damage; and over 300,000 customers lost electric power. Nagaoka's water supply was disrupted by the failure of electric power, which illustrates lifeline interaction, and Ojiya's water treatment plant almost lost its intake of raw water. Nagaoka's 1,079- km-long water system sustained damage at 287 locations, and Ojiya's 329- km-long water system sustained damage at 102 locations. In 2,672 km of wastewater piping, damage was sustained at over 9,000 locations, with manhole settlement or uplift at over 1,300 locations. The pattern of refugees was strongly influenced by the availability of lifeline services—primarily, electric power.

scholarly journals Análise da operação de um subsistema do sistema de abastecimento de água de Campina Grande-PB

2019 ◽  
Vol 1 (45) ◽  
pp. 180
Author(s):  
Kennedy Lucena ◽  
Fábio Gomes Do Nascimento
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Water Distribution ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Hydraulic Modeling ◽  
Physical Structure ◽  
Supply System ◽  
Water Supply Systems ◽  
Operational Diagnosis

Water supply systems represent one of the main components of municipal infrastructure. The operation of these systems is a complex task due to the several variables that interfere with the water distribution dynamics. The objective of the work was to obtain a diagnosis of the operation of part of the water supply system of Campina Grande and to find the main limitations and potentialities of the system infrastructure. The system supplies water to several municipalities, serving an urban and a rural population of more than 500,000 inhabitants. For the operational diagnosis, hydraulic modeling was done using the Epanet 2 simulator. The operation was modeled from the water treatment plant to the pressure zone 2 of the Campina Grande system. Cadastral surveys of the water network were carried out, field surveys and interviews with the operators. Based on the scenarios analyzed it was possible to conclude that zone 2 of the supply system has little margin for increase demand , around 10%, that the system can not work outside the peak hours and the energy cost is mainly generated by the station of water treatment. In order to improve the vulnerability reduction operation, investments are required in the physical structure of the system and in monitoring and automation.

Technical auditing of water supply systems – part 2: water treatment plant

2017 ◽  
Vol 18 (4) ◽  
pp. 1141-1150
Author(s):  
Tomáš Kučera ◽  
Ladislav Tuhovčák ◽  
Renata Biela
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Water Supply Systems ◽  
Supply Systems

Experiences with the practical implementation and operation of biological nitrification for a small-scale drinking water treatment plant

2016 ◽  
Vol 16 (4) ◽  
pp. 922-930 ◽  
Author(s):  
L. Richard ◽  
E. Mayr ◽  
M. Zunabovic ◽  
R. Allabashi ◽  
R. Perfler
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Water Supply ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
Drinking Water Supply ◽  
Small Scale ◽  
Treatment Performance ◽  
Biological Nitrification

The implementation and evaluation of biological nitrification as a possible treatment option for the small-scale drinking water supply of a rural Upper Austrian community was investigated. The drinking water supply of this community (average system input volume: 20 m3/d) is based on the use of deep anaerobic groundwater with a high ammonium content of geogenic origin (up to 5 mg/l) which must be treated to prevent the formation of nitrites in the drinking water supply system. This paper describes the implementation and operation of biological nitrification despite several constraints including space availability, location and financial and manpower resources. A pilot drinking water treatment plant, including biological nitrification implemented in sand filters, was designed and constructed for a maximum treatment capacity of 1.2 m3/h. Online monitoring of selected physicochemical parameters has provided continuous treatment performance data. Treatment performance of the plant was evaluated under standard operation as well as in the case of selected malfunction events.

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.

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