Chemistry for the Protection of the Environment 4 by Robert Mournighan, Marzenna R. Dudzinska, John Barich,

By Robert Mournighan, Marzenna R. Dudzinska, John Barich, Marjorie A. Gonzalez, Robin K. Black

Those lawsuits offer a discussion board for chemical scientists and engineers devoted to creating a purifier, more healthy international for everybody. They disguise a variety of comparable matters corresponding to environmental tracking, wastewater remedy, and sludge administration.

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AcJp Abstract: 1. Performances of Zr(IV) loaded Diaion CRP200 (crosslinked polystyrene based methylenephosphonic acid resin) as specific adsorbent for phosphate, arsenate, and arsenite were evaluated by columnar approach. Phosphate and arsenate were adsorbed under weakly acidic conditions. 1 M aqueous sodium hydroxide. After the elution operation, the adsorbent was able to regenerate by supplying a dilute sulfuric acid solution containing Zr(IV) to the column. Interestingly, breakthrough capacities were enhanced by repeating these adsorption-elutionregeneration operations up to 10 times and attained to the stationary ones of ca.

Mattusch and R. - Anal. Chem. 70, 3649 - 3655. acJp Abstract: 1. Performances of Zr(IV) loaded Diaion CRP200 (crosslinked polystyrene based methylenephosphonic acid resin) as specific adsorbent for phosphate, arsenate, and arsenite were evaluated by columnar approach. Phosphate and arsenate were adsorbed under weakly acidic conditions. 1 M aqueous sodium hydroxide. After the elution operation, the adsorbent was able to regenerate by supplying a dilute sulfuric acid solution containing Zr(IV) to the column.

R i r - r 4 r -. • •"* — o ••'"• -Qia o - c : £ . C O -- O ^ CD cc *yi ^ r'. "^ O ; r~ r- i , r I ^ i •r^; r 4 oc „ >: r- s 3C r ^ -T C- ^. f«-. ^ oc cr O c^ X cc r- ri oc f . r^; 9: ~ — 1. -_ ^ o 00 "7 -p --* "Q E 8 '-•-. T3 § i^- 1 a> ZIRCONIUM(IV) LOADED DIAION CRP200 RESIN AS A SPECIFIC ADSORBENT TO AS(III) AND AS(V) '^ -zz '^ ^ C t* o '' i3 i i c 1 o ^ ^' C:: '^^ '^' "J a: 3 =" I E r 5 o r -i o w o ^ ^ ^ i X Ci< v t5 I') F 1 T3 4>^ zp> ^r ^ £ ' ? "^ ^ 3 Ck:: 7b6/e ^. Conditions and results of repeated removal of arsenite.

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