Up-flow roughing filtration: rehabilitation of a water treatment plant in Tarata, Bolivia

1998 ◽  
Vol 37 (9) ◽  
pp. 105-112 ◽  
Author(s):  
Ana María Ingallinella ◽  
Luis María Stecca ◽  
Martin Wegelin
Keyword(s):  
Water Treatment ◽  
Pilot Plant ◽  
Laboratory Tests ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Horizontal Flow ◽  
Design Parameters ◽  
Sand Filters ◽  
Chemical Products ◽  
Made In

This paper presents the methodology used for the rehabilitation of the pretreatment stage in a water treatment plant for a village located in Bolivia which has 3500 inhabitants. The treatment plant was initially composed by horizontal-flow roughing filters and slow sand filters, but due to the high contents of colloidal turbidity of the providing source, it did not work properly. A plan of rehabilitation was made which comprised laboratory tests, pilot tests and proposal of modifications based on the results of previous stages. The laboratory tests were made in order to find the optimum conditions to coagulate the raw water. It was found that horizontal-flow roughing filters must be turned into up-flow roughing filters, so a pilot plant was built and was operated for three months in order to find suitable design parameters. The results obtained obtained during the operation of the pilot plant and the proposal of modifications are presented. The results of operation of the final plant, which are also reported, demonstrated the advantages of the up-flow roughing filtration as a pretreatment stage when it is necessary to add chemical products in small treatment plants.

METHODS FOR DETERMINING ORGANIC MATTER AND COLOUR IN WATER

2010 ◽  
Vol 2 (5) ◽  
pp. 5-8
Author(s):  
Ramunė Albrektienė ◽  
Mindaugas Rimeika
Keyword(s):  
Organic Matter ◽  
Water Treatment ◽  
Organic Compounds ◽  
Wave Length ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Water Filtration ◽  
Humic Matter ◽  
Sand Filters ◽  
Start Up

The article examines different methods for determining organic matter and colour in water. Most of organic compounds in water have a humic substance. These substances frequently form complexes with iron. Humic matter gives water a yellow-brownish colour. Water filtration through conventional sand filters does not remove colour and organic compounds, and therefore complicated water treatment methods shall be applied. The methods utilized for organic matter determination in water included research on total organic carbon, permanganate index and the bichromate number of UV absorption of 254 nm wave length. The obtained results showed the greatest dependence between water colour and permanganate index. However, UV adsorption could be used for organic matter determination during the operation of a water treatment plant and the start-up of plants as easy and fast methods.

Sludge and washwater management strategies for the Vaalkop water treatment plant

2001 ◽  
Vol 44 (6) ◽  
pp. 73-80
Author(s):  
J. Haarhoff ◽  
P. van Heerden ◽  
M. van der Walt
Keyword(s):  
Water Treatment ◽  
South African ◽  
Management Practices ◽  
Current System ◽  
Management Strategies ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Design Parameters ◽  
Legislative Framework ◽  
Large Water

The Vaalkop plant, owned and operated by Magalies Water, provides a valuable South African case study of sludge and washwater management at a large water treatment plant. Starting out as a small plant of 18 Ml/day about thirty years ago, it has steadily grown to a plant with treatment capacity of 210 Ml/day; fairly large by South African standards. During the preceding years, it has not only been subject to a vastly larger scale of operation, but it also had to adapt to a tremendous increase in the cost of raw water, an increased environmental awareness amongst water treatment professionals and general public alike, and a much more sophisticated and complicated legislative framework. It is the objective of this paper to track the sludge and washwater management practices adopted over the years at Vaalkop, and to present the current strategies adopted for the medium to long term. The paper will summarize the previous methods of sludge and washwater disposal, with reasons why they were adopted. The multitude of technical analyses and alternatives that were performed over the years will be summarized, and may provide valuable pointers for other applications in South Africa. The current system, which has just been commissioned, will be presented; its technical design parameters, the anticipated mode of operation, its costs and how the current environmental and legislative requirements are being met.

Chemical monitoring strategy for the assessment of advanced water treatment plant performance

2010 ◽  
Vol 10 (6) ◽  
pp. 961-968 ◽  
Author(s):  
J. E. Drewes ◽  
J. A. McDonald ◽  
T. Trinh ◽  
M. V. Storey ◽  
S. J. Khan
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Reverse Osmosis ◽  
Pilot Plant ◽  
Monitoring Program ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Pilot Scale ◽  
Chemical Monitoring ◽  
Plant Operation

A pilot-scale plant was employed to validate the performance of a proposed full-scale advanced water treatment plant (AWTP) in Sydney, Australia. The primary aim of this study was to develop a chemical monitoring program that can demonstrate proper plant operation resulting in the removal of priority chemical constituents in the product water. The feed water quality to the pilot plant was tertiary-treated effluent from a wastewater treatment plant. The unit processes of the AWTP were comprised of an integrated membrane system (ultrafiltration, reverse osmosis) followed by final chlorination generating a water quality that does not present a source of human or environmental health concern. The chemical monitoring program was undertaken over 6 weeks during pilot plant operation and involved the quantitative analysis of pharmaceuticals and personal care products, steroidal hormones, industrial chemicals, pesticides, N-nitrosamines and halomethanes. The first phase consisted of baseline monitoring of target compounds to quantify influent concentrations in feed waters to the plant. This was followed by a period of validation monitoring utilising indicator chemicals and surrogate measures suitable to assess proper process performance at various stages of the AWTP. This effort was supported by challenge testing experiments to further validate removal of a series of indicator chemicals by reverse osmosis. This pilot-scale study demonstrated a simplified analytical approach that can be employed to assure proper operation of advanced water treatment processes and the absence of trace organic chemicals.

Manufacturing ceramic bricks with polyaluminum chloride (PAC) sludge from a water treatment plant

2015 ◽  
Vol 71 (11) ◽  
pp. 1638-1645 ◽  
Author(s):  
E. M. da Silva ◽  
D. M. Morita ◽  
A. C. M. Lima ◽  
L. Girard Teixeira
Keyword(s):  
Water Treatment ◽  
Water Absorption ◽  
Real World ◽  
Laboratory Tests ◽  
Research Work ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
The State ◽  
Polyaluminum Chloride ◽  
Real World Applications

The objective of this research work is to assess the viability of manufacturing ceramic bricks with sludge from a water treatment plant (WTP) for use in real-world applications. Sludge was collected from settling tanks at the Bolonha WTP, which is located in Belém, capital of the state of Pará, Brazil. After dewatering in drainage beds, sludge was added to the clay at a local brickworks at different mass percentages (7.6, 9.0, 11.7, 13.9 and 23.5%). Laboratory tests were performed on the bricks to assess their resistance to compression, water absorption, dimensions and visual aspects. Percentages of 7.6, 9.0, 11.7 and 13.9% (w/w) of WTP sludge presented good results in terms of resistance, which indicates that technically, ceramic bricks can be produced by incorporating up to 13.9% of WTP sludge.

Выбор расчетных параметров – расхода и качества воды поверхностного водоисточника при проектировании станции водоподготовки

2020 ◽  
Author(s):  
M. Shuvalov ◽  
A. Strelkov ◽  
S. Shuvalov
Keyword(s):  
Water Treatment ◽  
Water Reuse ◽  
Ph Value ◽  
Water Flow Rate ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Design Parameters ◽  
Process Equipment ◽  
Quality Of Water ◽  
Injection Unit

Приводятся статистические данные за период 12лет по качеству воды в реке Большой Кинель в створе водозабора г. Кинель Самарской области и процедуре назначения расчетных параметров сооружений при проектировании новой станции водоподготовки. Принятая проектом технологическая схема предусматривает следующие процессы: процеживание на микрофильтрах, озонирование, известково-содовое умягчение, коагулирование, отстаивание в осветлителях со взвешенным слоем осадка, фильтрование и обеззараживание. В составе сооружений реагентного хозяйства спроектированы: установка введения порошкообразного активного угля в обрабатываемую воду перед скорыми фильтрами установка введения соляной кислоты для корректировки величины рН очищенной воды сооружения повторного использования воды, сгущения осадка и его механического обезвоживания. Строительство пускового комплекса станции водоподготовки завершено. Для выполнения расчета сооружений станций водоподготовки предлагается назначать три комбинации значений расчетных параметров расхода воды и качества (концентрации определяющих ингредиентов) исходной воды в зависимости от типа сооружения или технологического оборудования.Statistical data over a period of 12 years on the quality of water in the Bolshoi Kinel River at the water intake of the Kinel city of the Samara Region and the procedure for allocating design parameters to the structures while designing a new water treatment plant are provided. The process flow scheme adopted by the project provides for the following processes: screening in microfilters, ozonation, lime-soda softening, coagulation, sedimentation in clarifiers with sludge blanket, filtration and disinfection. The following facilities were designed as part of the chemical treatment facilities: a unit for introducing powdered activated carbon into the treated water before rapid filters hydrochloric acid injection unit for adjusting pH value of purified water water reuse facilities, sludge thickening and mechanical dewatering facilities. The construction of the start-up package of the water treatment plant has been completed. To carry out the calculation of the structures of water treatment plants, allocating three combinations of the values of the calculated parameters water flow rate and quality (concentration of determining ingredients) of the source water depending on the type of structure or process equipment is proposed.

Isolation of Novel Iron-Oxidizing Bacteria from an Acid Mine Water Treatment Plant

2009 ◽  
Vol 71-73 ◽  
pp. 125-128 ◽  
Author(s):  
Sabrina Hedrich ◽  
Elke Heinzel ◽  
Jana Seifert ◽  
Michael Schlömann
Keyword(s):  
Water Treatment ◽  
Mine Water ◽  
Pilot Plant ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Acid Mine Water ◽  
Iron Oxidizing Bacteria ◽  
Mine Water Treatment ◽  
Culture Independent ◽  
Dominant Bacteria

The capacity of a microbiological mine water treatment plant may to be enhanced by understanding the microbiological processes. Therefore different samples from the pilot plant were analyzed by culture-independent and cultivation methods. Dominant bacteria could be isolated on overlay plates or enriched in gradient cultures. To immobilize biomass in the pilot plant, various carrier materials were tested. Sessil, the material currently used in the pilot plant, was the most favored and appropriate material.

An Engineering Example of Removing Iron and Manganese from Underground Water

2014 ◽  
Vol 508 ◽  
pp. 251-254
Author(s):  
Yu Li ◽  
Ya Feng Li
Keyword(s):  
Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Underground Water ◽  
Design Parameters ◽  
Main Process ◽  
Processing Capacity ◽  
Process Characteristics ◽  
Operation Cost ◽  
Iron And Manganese

Use water supply treatment engineering of Shenyang some water treatment plant as an example. Introduced process characteristics, design parameters, treatment effect and operation cost of treating iron and manganese of underground drinking water. This water treatment plant treat the underground water as the source, and the processing capacity of water of this engineering is 105t/d. This underground water turns out to be abundant and clear. Therefore, the main process of the water treatment plant is decresing the content of iron and manganese in the underground water.

scholarly journals Optimization of water treatment process performance of Duren Seribu Water Treatment Plant in Depok City: water quality and design parameters

2021 ◽  
Vol 896 (1) ◽  
pp. 012039
Author(s):  
R Hanifa ◽  
S Adityosulindro ◽  
N P S Wahyuningsih
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Water Treatment ◽  
Removal Efficiency ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Quality Standards ◽  
Total Coliform ◽  
Design Parameters ◽  
Detention Time

Abstract Duren Seribu Water Treatment Plant (WTP) plays a role in fulfilling water needs due to the increase in population growth. This study aims to evaluate the performance of the WTP and the potential for capacity uprating from the aspect of conformity to water quality standards, removal efficiency, and design parameters. Data collection was carried out by observation, measurement, and sampling. The result showed that raw water quality complies with the quality standards and is influenced by seasons. Meanwhile, the quality of drinking water produced for the parameters of pH, turbidity, TDS, organic matter, iron, and total coliform has complied with the quality standards. The efficiency removal of turbidity, TDS, organic matter, and iron occurred in conventional processing units were 94.6%, 70.5%, and 90.9%, and the total coliform removal efficiency was 1.8-log (67.05%). Based on the assessment of the design criteria, there are design parameters of the unit that require technical improvement such as detention time of flocculation unit, velocity and detention time in tube settler sedimentation unit, and the capacity of Duren Seribu WTP could be increased by 10% or up to 110 liters/second.

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