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Fixation and stabilization of metals
A coating composition containing 45 to 80% by weight of a binder and 20 to 55% of a carrier liquid; wherein the binder comprises an acrylic polymer comprising polymerized hydroxyl containing monomers; and an organic crosslinking agent. IUCTROSTAnc POWDI. COAnNG APPARATUS
U.S. Patent 5,915,621. June 29, 1999 K. Yanagida et al., assignors to
Nippon Paint Co. Ltd., Osaka, and Nihon Parkerizing Co. Ltd., Tokyo, both of Japan
An electrostatic powder coating apparatus adapted to form a coating film by spraying electrostatically charged powder toward a surface of an electrically grounded product to be coated;
wherein a nozzle tip of the spray gun includes powder adhesion preventing means and the powder supply unit comprises a fluid-bedtype hopper vertically partitioned by a porous member to define therein an upper fluidizing container and a lower air chamber, and includes temperature/humidity control means for adjusting a temperature and humidity of compressed air supplied to the air chamber and means for stirring the powder in the fluidizing container. flXAnON AND STABlLlZATIM Of MITALS
U.S. Patent 5,916,123. June 29, 1999 D. Pal and K. W. Yost, assignors to Stevenson Environmental Services Inc., Niagara Falls, N.Y.
ION EXCHANGE RESINS CHELATION & STANDARD for METALS REMOVAL in • •
• • •
• • •
A method of treating metal-bearing material to stabilize leachable metal contained therein comprising mixing with a treatment additive comprising a first component and a second component wherein the first component supplies at least one member from the group consisting of sulfates, halites, silicates, and calcium oxide, and wherein the second component supplies at least one phosphate anion; and curing the mixture for a period of time so the leachable metal level is below 5.0 mg/L, and the volume is reduced as a result of treating and curing.
RINSE WATER RECYCLE METALS SCAVENGING WATER DEMINERALIZATION TRACE METALS POLISHING BATH PURIFICATION WASTE WATER TREATMENT PRECIOUS METALS RECOVERY ION SPECIFIC RESINS
COST EFFECTIVE INDUSTRIAL WA TEWATER SYSTEMS
COMPLIA CE .
~ .
-.
RECYCLE REU
. ProChemTech
International Inc.
NATIO WID SUPPLIER OF SYSTEMS WHICH INTEGRATE CHEMISTRY AND EQ IPME T FOR o T EFFE TIVE TREAT T, RE SE, AND RECYCLE OF INDUSTRIAL W TEWATER
ALL FROM
PUR~LITE® phone: 800·343·1500 fax: 610·668·8139
SMALLER
ITS ARE KID MO TED AND FULLY AS EMBLED - READY TO R
Phone 814-265-0959
FAX 814-265-1263
www.prochemtech.com ....-.,"F t 'Je' 41l1c.
hllp/nwww.purolilUGm
Circle 053 on reader information card
March 2000
Circle 052 on reader information card
17
U.S. Patent 5,915,621. June 29, 1999 K. Yanagida et al., assignors to
Nippon Paint Co. Ltd., Osaka, and Nihon Parkerizing Co. Ltd., Tokyo, both of Japan
An electrostatic powder coating apparatus adapted to form a coating film by spraying electrostatically charged powder toward a surface of an electrically grounded product to be coated;
wherein a nozzle tip of the spray gun includes powder adhesion preventing means and the powder supply unit comprises a fluid-bedtype hopper vertically partitioned by a porous member to define therein an upper fluidizing container and a lower air chamber, and includes temperature/humidity control means for adjusting a temperature and humidity of compressed air supplied to the air chamber and means for stirring the powder in the fluidizing container. flXAnON AND STABlLlZATIM Of MITALS
U.S. Patent 5,916,123. June 29, 1999 D. Pal and K. W. Yost, assignors to Stevenson Environmental Services Inc., Niagara Falls, N.Y.
ION EXCHANGE RESINS CHELATION & STANDARD for METALS REMOVAL in • •
• • •
• • •
A method of treating metal-bearing material to stabilize leachable metal contained therein comprising mixing with a treatment additive comprising a first component and a second component wherein the first component supplies at least one member from the group consisting of sulfates, halites, silicates, and calcium oxide, and wherein the second component supplies at least one phosphate anion; and curing the mixture for a period of time so the leachable metal level is below 5.0 mg/L, and the volume is reduced as a result of treating and curing.
RINSE WATER RECYCLE METALS SCAVENGING WATER DEMINERALIZATION TRACE METALS POLISHING BATH PURIFICATION WASTE WATER TREATMENT PRECIOUS METALS RECOVERY ION SPECIFIC RESINS
COST EFFECTIVE INDUSTRIAL WA TEWATER SYSTEMS
COMPLIA CE .
~ .
-.
RECYCLE REU
. ProChemTech
International Inc.
NATIO WID SUPPLIER OF SYSTEMS WHICH INTEGRATE CHEMISTRY AND EQ IPME T FOR o T EFFE TIVE TREAT T, RE SE, AND RECYCLE OF INDUSTRIAL W TEWATER
ALL FROM
PUR~LITE® phone: 800·343·1500 fax: 610·668·8139
SMALLER
ITS ARE KID MO TED AND FULLY AS EMBLED - READY TO R
Phone 814-265-0959
FAX 814-265-1263
www.prochemtech.com ....-.,"F t 'Je' 41l1c.
hllp/nwww.purolilUGm
Circle 053 on reader information card
March 2000
Circle 052 on reader information card
17