Heavy Metals Extraction by Electric Fields

2000 ◽  
pp. 167-186
Author(s):  
Akram Alshawabkeh ◽  
R Mark Bricka
Keyword(s):  
Heavy Metals ◽  
Electric Fields ◽  
Metals Extraction

Heavy metals extraction by microemulsions

2003 ◽  
Vol 37 (11) ◽  
pp. 2709-2717 ◽  
Author(s):  
T.N.Castro Dantas ◽  
A.A.Dantas Neto ◽  
M.C.P.A. Moura ◽  
E.L.Barros Neto ◽  
K.R. Forte ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Metals Extraction

Method of Biological Wastewater Final Treatment Using Bioremediation in Northern Khabarovskiy Krai

2014 ◽  
Vol 1051 ◽  
pp. 505-510 ◽  
Author(s):  
Konstantin Gula ◽  
Liudmila Krupskaya ◽  
Eugene Shevkun ◽  
Valentina Zvereva
Keyword(s):  
Heavy Metals ◽  
Biological Treatment ◽  
Chemical Method ◽  
Gold Mining ◽  
Lemna Minor ◽  
Processing Plant ◽  
Waste Waters ◽  
Mining Enterprise ◽  
Final Treatment ◽  
Metals Extraction

The article presents the results of experimental research for final treatment of gold mining enterprise waste waters using water lentil (Lemna minor) of (Lemna L. ) genus, (Lemnactat S.F. Gray) family, and common red grass (Phrágmites austrális (Cav.) Trin. Ex Steud.). It was shown that a level of heavy metals extraction, cyanides and rhodanides from the industrial waters of gold processing plant is greatly higher in comparison with chemical method used at the plant. The proposals are given to the gold mining enterprise to establish a pilot plant for final biological treatment, its novelty is confirmed by the Patent of Russian Federation of 20.01.2014.

scholarly journals Characteristics of Brown Seaweeds Sargassum policystum and Padina minor from Pohuwato Water, Gorontalo

2018 ◽  
Vol 21 (3) ◽  
pp. 296
Author(s):  
Shindy Hamidah Manteu ◽  
Nurjanah Nurjanah ◽  
Tati Nurhayati
Keyword(s):  
Heavy Metals ◽  
Antioxidant Activity ◽  
Water Content ◽  
Brown Seaweed ◽  
Ethanol Extract ◽  
Proximate Analysis ◽  
Brown Seaweeds ◽  
Hypertensive Patients ◽  
Low Levels ◽  
Metals Extraction

Brown seaweed is one of the abundant resources that grows on the reefs of Pohuwato, Gorontalo Province. This research was aimed to determine the characteristics of <em>S. polycystum</em> and <em>P. minor</em> as sources of salt for hypertensive patients. The research consisted of proximate analysis, minerals, heavy metals, extraction, phytochemicals, phenols analysis, and antioxidant activity. <em>S. polycystum, P. minor</em> had water content of 17.69-22.31%, ash 24.51-30.53%, fat 0.50-0.52%, protein 3.65-4.78%, carbohydrates 53.66-41.88 and crude fiber 3.81-6.52%. The seaweeds also contained  Mg 8.89-22.41 mg/g, Fe 0.50-1.00 mg/g, K 26.90-32.71%, Na 22.23-22.69 mg/g, Ca 18.06-32.91 mg/g and ratio Na:K 0.69-0.83 mg/g. Heavy metals were detected in low levels with the content&lt;0.002-&lt;0.004 ppm. Ethanol extract of S. polycystum contained flavonoid, saponin, streoid, alkaloid. Meanwhile ethanol extract of <em>P. minor</em> contained flavonoid, saponin, triterpenoid, stereoid, phenol, dan alkaloid. Total phenol level of<em> S. polycystum</em> was 173.6 mg GAE/g and <em>P. minor</em> was 568.7 mg GAE/g. The antioxidant IC50 of <em>S. Polycystum</em> was 77.58 mg/L while <em>P. minor</em> was 66.38 mg/L.

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