MICROBIAL REMOVAL AND INACTIVATION FROM WATER BY FILTERS CONTAINING MAGNESIUM PEROXIDE.

Charles P Gerba, Kenneth Hou, Mark D. Sobsey

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Microporous filters containing MgO//2 were shown to be effective in the removal and inactivation of bacteria and viruses from tapwater. Pseudomonas aeruginosa, P. cepacia and Escherichia coli collected by the filters were found to rapidly decrease in numbers to undetectable levels within 24 hours. In contrast, the same bacteria collected on identical filters not containing MgO//2, either rapidly increased in numbers or their numbers remained unchanged. Poliovirus type 1, Echovirus type 1, Reovirus type 3 and Rotavirus SA-11 were found to readily adsorb to the filters. No significant inactivation of bacteria or viruses occurred in tapwater passed through the filters, strongly suggesting that the microorganisms were being inactivated while adsorbed to the filters and not by substances released by the filters into the water. Additional aspects of the subject are discussed.

Original languageEnglish (US)
Pages (from-to)41-58
Number of pages18
JournalJournal of Environmental Science and Health - Part A Environmental Science and Engineering
VolumeA23
Issue number1
StatePublished - 1988

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Peroxides
Magnesium
Bacteria
Viruses
Water
Microorganisms
Escherichia coli

ASJC Scopus subject areas

  • Pollution

Cite this

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abstract = "Microporous filters containing MgO//2 were shown to be effective in the removal and inactivation of bacteria and viruses from tapwater. Pseudomonas aeruginosa, P. cepacia and Escherichia coli collected by the filters were found to rapidly decrease in numbers to undetectable levels within 24 hours. In contrast, the same bacteria collected on identical filters not containing MgO//2, either rapidly increased in numbers or their numbers remained unchanged. Poliovirus type 1, Echovirus type 1, Reovirus type 3 and Rotavirus SA-11 were found to readily adsorb to the filters. No significant inactivation of bacteria or viruses occurred in tapwater passed through the filters, strongly suggesting that the microorganisms were being inactivated while adsorbed to the filters and not by substances released by the filters into the water. Additional aspects of the subject are discussed.",
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AU - Hou, Kenneth

AU - Sobsey, Mark D.

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N2 - Microporous filters containing MgO//2 were shown to be effective in the removal and inactivation of bacteria and viruses from tapwater. Pseudomonas aeruginosa, P. cepacia and Escherichia coli collected by the filters were found to rapidly decrease in numbers to undetectable levels within 24 hours. In contrast, the same bacteria collected on identical filters not containing MgO//2, either rapidly increased in numbers or their numbers remained unchanged. Poliovirus type 1, Echovirus type 1, Reovirus type 3 and Rotavirus SA-11 were found to readily adsorb to the filters. No significant inactivation of bacteria or viruses occurred in tapwater passed through the filters, strongly suggesting that the microorganisms were being inactivated while adsorbed to the filters and not by substances released by the filters into the water. Additional aspects of the subject are discussed.

AB - Microporous filters containing MgO//2 were shown to be effective in the removal and inactivation of bacteria and viruses from tapwater. Pseudomonas aeruginosa, P. cepacia and Escherichia coli collected by the filters were found to rapidly decrease in numbers to undetectable levels within 24 hours. In contrast, the same bacteria collected on identical filters not containing MgO//2, either rapidly increased in numbers or their numbers remained unchanged. Poliovirus type 1, Echovirus type 1, Reovirus type 3 and Rotavirus SA-11 were found to readily adsorb to the filters. No significant inactivation of bacteria or viruses occurred in tapwater passed through the filters, strongly suggesting that the microorganisms were being inactivated while adsorbed to the filters and not by substances released by the filters into the water. Additional aspects of the subject are discussed.

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