WO2014188443A3 - A water purification composition - Google Patents

A water purification composition Download PDF

Info

Publication number
WO2014188443A3
WO2014188443A3 PCT/IN2014/000221 IN2014000221W WO2014188443A3 WO 2014188443 A3 WO2014188443 A3 WO 2014188443A3 IN 2014000221 W IN2014000221 W IN 2014000221W WO 2014188443 A3 WO2014188443 A3 WO 2014188443A3
Authority
WO
WIPO (PCT)
Prior art keywords
water purification
rice husk
husk ash
purification composition
chitosan
Prior art date
Application number
PCT/IN2014/000221
Other languages
French (fr)
Other versions
WO2014188443A2 (en
Inventor
Debabrata Rautaray
Prabhat Kumar PARIDA
Mayura LOLAGE
Ashwini ANGAL
Original Assignee
Tata Chemicals Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tata Chemicals Limited filed Critical Tata Chemicals Limited
Publication of WO2014188443A2 publication Critical patent/WO2014188443A2/en
Publication of WO2014188443A3 publication Critical patent/WO2014188443A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C02F1/505—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/08—Nanoparticles or nanotubes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

A water purification composition and a method of preparing the same are disclosed. The water purification composition comprising porous granules of rice husk ash- silver nanoparticles-chitosan matrix, obtained by adding rice husk ash bonded to silver nanoparticles or rice husk ash and silver nanoparticles to a chitosan gel, the chitosan gel formed by dissolving ehitosan in an aqueous solution of an organic acid, such that the ratio of chitosan to rice husk ash is in a range of 3:100 to 15:100 weight by weight wherein the porous granules are obtained in a range of 0.15 mm to 1 mm.
PCT/IN2014/000221 2013-04-12 2014-04-08 A water purification composition WO2014188443A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1367/MUM/2013 2013-04-12
IN1367MU2013 IN2013MU01367A (en) 2013-04-12 2014-04-08

Publications (2)

Publication Number Publication Date
WO2014188443A2 WO2014188443A2 (en) 2014-11-27
WO2014188443A3 true WO2014188443A3 (en) 2015-01-29

Family

ID=51934278

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2014/000221 WO2014188443A2 (en) 2013-04-12 2014-04-08 A water purification composition

Country Status (2)

Country Link
IN (1) IN2013MU01367A (en)
WO (1) WO2014188443A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106219709A (en) * 2016-09-27 2016-12-14 合肥天翔环境工程有限公司 A kind of inorganic flocculating agent and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010010569A1 (en) * 2008-07-24 2010-01-28 Tata Chemicals Ltd A process for forming a rice husk ash composition
WO2010010570A1 (en) * 2008-07-24 2010-01-28 Tata Chemicals Ltd. A process for forming a rice husk ash composition
WO2012073252A1 (en) * 2010-11-29 2012-06-07 Tata Chemicals Limited Antimicrobial compositions based on rice hull ash
WO2012142025A1 (en) * 2011-04-10 2012-10-18 Nanoholdings, Llc Water purification unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010010569A1 (en) * 2008-07-24 2010-01-28 Tata Chemicals Ltd A process for forming a rice husk ash composition
WO2010010570A1 (en) * 2008-07-24 2010-01-28 Tata Chemicals Ltd. A process for forming a rice husk ash composition
WO2012073252A1 (en) * 2010-11-29 2012-06-07 Tata Chemicals Limited Antimicrobial compositions based on rice hull ash
WO2012142025A1 (en) * 2011-04-10 2012-10-18 Nanoholdings, Llc Water purification unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106219709A (en) * 2016-09-27 2016-12-14 合肥天翔环境工程有限公司 A kind of inorganic flocculating agent and preparation method thereof

Also Published As

Publication number Publication date
IN2013MU01367A (en) 2015-04-10
WO2014188443A2 (en) 2014-11-27

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