scholarly journals FLOWSHEET FOR CONVERSION OF ANION RESIN FROM NITRATE TO SULFATE FORM FOR DISPOSAL

2021 ◽  
Author(s):  
EDWARD KYSER
Keyword(s):  
2011 ◽  
Vol 189-193 ◽  
pp. 404-409
Author(s):  
Fu Quan Peng ◽  
Zhen Cheng Xu ◽  
Jian Hong Huang ◽  
Qing Wei Guo ◽  
Feng Nie

Different adsorptive mediums and adsorbents’ compounds were chosen to remove arsenic from Yangzonghai Lake wastewater. Results showed that Ca(OH)2, attapulgite, bentonite, LDHs these adsorptive mediums had adsorptive capacities of less than 2.5 mg/g of As removal and it took long time for sediment before monitoring; adsorbents compounds’ results showed Fe2O3 and quartz sands had best removal rate and quartz sands had little removal of arsenic. Both strong anion resin and hydrated ferrous oxide-loaded on polystyrene diethanolamine resin(designated as PDR-HFO) can decrease As concentration to less than 0.01 mg/L reaching national standards for arsenic; anions such as SO42- can not be removed when strong anion resin was regenerated causing its loss of exchange ions; PDR-HFO exhibited excellent adsorptive properties and recyclability.


2020 ◽  
Vol 44 (2) ◽  
pp. 231-242 ◽  
Author(s):  
Gang Yang ◽  
Aaron Zimmerman ◽  
Nicole C. Hurtig ◽  
Svetoslav V. Georgiev ◽  
Vineet Goswami ◽  
...  

1964 ◽  
Vol 47 (6) ◽  
pp. 1054-1056
Author(s):  
J M O’Neal ◽  
K G Clark

Abstract A method is proposed in which both a cation and an anion resin are used to separate the various forms of nitrogen in fertilizers. By this method troublesome phosphate ion is removed from the urea-containing solution, thereby making it possible to determine urea directly without the double-precipitation procedure required in AOAC method 2.055. The proposed cation-anion exchange column procedure makes it possible to determine the water-soluble amnionic, nitric, and amidic forms of nitrogen rapidly, accurately, and directly.


2014 ◽  
Vol 25 (4) ◽  
pp. 191-198
Author(s):  
M. M. RAHMAN ◽  
Taekyung YOON ◽  
Gary L. FOUTCH

ACS Omega ◽  
2020 ◽  
Vol 5 (9) ◽  
pp. 4542-4547
Author(s):  
Natalia Evsevskaya ◽  
Elena Pikurova ◽  
Svetlana V. Saikova ◽  
Ivan Vasilievich Nemtsev

2017 ◽  
Vol 90 (9) ◽  
pp. 1504-1513 ◽  
Author(s):  
Mohammad Bagher Fathi ◽  
Bahram Rezai ◽  
Eskandar Keshavarz Alamdari ◽  
Richard Diaz Alorro

2014 ◽  
Vol 936 ◽  
pp. 789-794
Author(s):  
Wei Ping Ding ◽  
Li Li Zou ◽  
Ying Ying Pei ◽  
Si Jie Sun ◽  
Da Yong Gao

Adsorption performances of activated carbon Norit RO 0.8, neutral resin Amberlite XAD-7, anion resin Dowex 1x4 and cation resin Dowex 50wx4 were investigated in detail for artificial liver support devices. Firstly, equilibrium adsorption experiments of these adsorbents to albumin, creatinine, bilirubin, tryptophan and cholic acid were conducted respectively. Then their adsorption capacities were obtained by curve fitting. The results indicate that activated carbon Norit RO 0.8 and anion resin Dowex 1x4 are two better adsorbents for removing toxins. Lastly, adsorption rate constants of activated carbon Norit RO 0.8 and anion resin Dowex 1x4 to all above solutes were studied with pseudo-first and second-order kinetic adsorption models. The results show that the toxin adsorption rate of anion resin Dowex 1x4 is faster than that of activated carbon Norit RO 0.8. The systematical experimental results in this paper are very important references for researchers in the field of blood purification based on adsorption technology.


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