Improvement of Rapid Sand Filtration to Two Stage Dual Media Filtration System in Water Treatment Plant

The removal of cyanobacteria, hepatotoxins produced by them (microcystins), phytoplankton, heterotrophic bacteria and endotoxins were monitored at a surface water treatment plant with coagulation, clarification, sand filtration, ozonation, slow sand filtration and chlorination as the treatment process. Coagulation–sand filtration reduced microcystins by 1.2–2.4, and endotoxins by 0.72–2.0 log10 units. Ozonation effectively removed the residual microcystins. The treatment process reduced phytoplankton biomass by 2.2–4.6 and heterotrophic bacteria by 2.0–5.0 log10 units. In treated water, the concentration of microcystins never exceeded the WHO guide value (1 μg/L), but picoplankton and monad cells were often detected in high numbers. The heterotrophic bacterial isolates from the treated waters belonged to genera Sphingomonas, Pseudomonas, Bacillus, Herbaspirillum and Bosea.

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Identification of Pathogenic Bacteria Isolated from Raw and After Sand Filtration Water at Lubok Buntar Water Treatment Plant

Scientific Research Journal ◽

10.24191/srj.v14i1.2701 ◽

2017 ◽

Vol 14 (1) ◽

pp. 41

Author(s):

Nur Hafizah Zakaria ◽

Husnul Azan Tajarudin ◽

Mohd Sharizal Mohd Sapingi ◽

Mohamad Fared Murshed

Keyword(s):

Water Treatment ◽

Dna Sequences ◽

Pathogenic Bacteria ◽

Treatment Plant ◽

Drinking Water Treatment ◽

Water Treatment Plant ◽

Local Alignment ◽

Sand Filtration ◽

Before And After ◽

Serial Samples

This study focused on the identification of pathogenic bacteria in raw water intake and after sand filtration for drinking water treatment plant during flood event in 2014. The samples was collected from the Lubok BuntarWater Treatment Plant (WTP) and processed through bacterial isolation using chocolate agar as a media. The isolation process conducted based on serial samples dilution and streaking method prior to DNA extraction.Deoxyribonucleic acid (DNA) extraction kit was used to get selected bacteria DNA and further analysis using Polymerase Chain Reaction (PCR) test and electrophoresis to get DNA sequences. The Basic Local Alignment Search Tool (BLAST) analysis was employed to identify the species of the isolated bacteria. As a result, Pantoeaagglomerans and Enterobacter sp. were found in raw and filtered water sample and indicating the same family types. It was concluded that bacteria of the same species were found before and after sand filtration and need to be removed by disinfectant process. The findings also indicated that all the physicochemical parameters measured were within the values prescribed by the Interim National Water QualityStandard (INWQS).

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Identification of Pathogenic Bacteria Isolated from Raw and After Sand Filtration Water at Lubok Buntar Water Treatment Plant

Scientific Research Journal ◽

10.24191/srj.v14i1.9371 ◽

2017 ◽

Vol 14 (1) ◽

pp. 41

Author(s):

Nur Hafizah Zakaria ◽

Husnul Azan Tajarudin ◽

Mohd Sharizal Mohd Sapingi ◽

Mohamad Fared Murshed

Keyword(s):

Water Treatment ◽

Dna Extraction ◽

Dna Sequences ◽

Pathogenic Bacteria ◽

Treatment Plant ◽

Drinking Water Treatment ◽

Water Treatment Plant ◽

Quality Standard ◽

Local Alignment ◽

Sand Filtration

This study focused on the identification of pathogenic bacteria in raw water intake and after sand filtration for drinking water treatment plant during flood event in 2014. The samples was collected from the Lubok Buntar Water Treatment Plant (WTP) and processed through bacterial isolation using chocolate agar as a media. The isolation process conducted based on serial samples dilution and streaking method prior to DNA extraction. Deoxyribonucleic acid (DNA) extraction kit was used to get selected bacteria DNA and further analysis using Polymerase Chain Reaction (PCR) test and electrophoresis to get DNA sequences. The Basic Local Alignment Search Tool (BLAST) analysis was employed to identify the species of the isolated bacteria. As a result, Pantoeaagglomerans and Enterobacter sp. were found in raw and filtered water sample and indicating the same family types. It was concluded that bacteria of the same species were found before and after sand filtration and need to be removed by disinfectant process. The findings also indicated that all the physicochemical parameters measured were within the values prescribed by the Interim National Water Quality Standard (INWQS).

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Siemens to supply membrane filtration system for Indiana water treatment plant

Pump Industry Analyst ◽

10.1016/s1359-6128(09)70099-0 ◽

2009 ◽

Vol 2009 (4) ◽

pp. 4

Keyword(s):

Water Treatment ◽

Membrane Filtration ◽

Treatment Plant ◽

Water Treatment Plant ◽

Filtration System

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Development of a portable direct filtration water treatment plant in northern Manitoba

Canadian Journal of Civil Engineering ◽

10.1139/l90-085 ◽

1990 ◽

Vol 17 (5) ◽

pp. 724-729

Author(s):

John W. Markowsky ◽

David L. Woytowich ◽

Ian C. Goulter

Keyword(s):

Water Treatment ◽

Treatment Plant ◽

Water Treatment Plant ◽

High Rate ◽

Construction Sites ◽

Direct Filtration ◽

Construction Design ◽

Filtration System ◽

Treatment Facilities ◽

Construction Operation

The Limestone Generating Project was reactivated in 1985. Part of the development of the project was to review and implement, if feasible, potable water treatment facilities for the construction community of Sundance. The source water, from the Nelson River, is of reasonably good quality. The turbidity, however, ranges from 4 to 70 nephelometric turbidity units (NTU), averaging 15.2 NTU. Following preliminary and pilot plant studies, a high rate, deep bed direct filtration system was proposed and constructed to reduce turbidity to acceptable levels. A key feature of the plant is its portability. Owing to the innovative design, the three filters can be easily transferred for use at future construction sites on the Nelson River. This paper reviews and discusses the design, construction, operation, and costs of the plant. Key words: construction, design, direct filtration, high rate, Nelson River, operation, portability, turbidity.

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Pyrosequencing Demonstrated Complex Microbial Communities in a Membrane Filtration System for a Drinking Water Treatment Plant

Microbes and Environments ◽

10.1264/jsme2.me10205 ◽

2011 ◽

Vol 26 (2) ◽

pp. 149-155 ◽

Cited By ~ 60

Author(s):

Soondong Kwon ◽

Eunjeong Moon ◽

Taek-Seung Kim ◽

Seungkwan Hong ◽

Hee-Deung Park

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Microbial Communities ◽

Membrane Filtration ◽

Treatment Plant ◽

Drinking Water Treatment ◽

Water Treatment Plant ◽

Drinking Water Treatment Plant ◽

Filtration System

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

E3S Web of Conferences ◽

10.1051/e3sconf/20198600029 ◽

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.

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