An alumina block filter media

The present invention relates to an activated alumina block filter media and a process for preparation of the alumina block, for use in gravity fed water filters and pressurized water filters for efficiently filtering particulate contaminants including microorganisms like cysts, bacteria and virus a...

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Main Authors GUPTA SANTOSH KUMAR, ABDUL KAREEM SHAJAHAN, CHATTERJEE JAIDEEP, RAMACHANDRA RAJEESH KUMAR, PRATAP SHAILENDRA
Format Patent
LanguageChinese
English
Published 08.05.2013
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:The present invention relates to an activated alumina block filter media and a process for preparation of the alumina block, for use in gravity fed water filters and pressurized water filters for efficiently filtering particulate contaminants including microorganisms like cysts, bacteria and virus apart from removal of chemical contaminants while at the same time providing for relatively high flow rates. The alumina block filter media for use in gravity fed water filters and pressurized water filters comprises (a) activated alumina having a particle size in the range of 100 to 1000 microns and with a BET surface area in the range 200 to 1000 m2/g and (b) a binder material having a Melt Flow Rate (MFR) of less than 5 wherein the ratio of activated alumina particles to the binder is in the range of 1:1 to 20:1 by weight.
Bibliography:Application Number: CN2011844794