Heavy metal cation retention by unconventional sorbents (red muds and fly ashes)

Ngày tải lên: 23/09/2012, 14:47

... for 15 N-GSH and 15 N- c-Glu- Cys were monitored at m ⁄ z 311 and 253, with retention times of 23 and 40 min, respectively. The fractions corre- sponding to these retention time ranges were collected and finally ... involved in metal- complex recognition by the Ycf1p transporter and no t in direct interaction with cadmium. The transporter Ycf1 is a key element in cadmium detox...

Ngày tải lên: 15/03/2014, 00:20

Ngày tải lên: 16/03/2014, 00:07

... a further incuba- tion step of 10 min, free MPT and metal ions were removed by gel filtration and the protein fraction was analysed for MPT and metal content. Acknowledgements We thank K. V. Rajagopalan ... as its bivalent cation Cd 2+ , and Cd 2+ ions are readily taken up by bacterial and eukaryotic cells, presumably by the Mn 2+ uptake system [29]. Cadmium toxicity may...

Ngày tải lên: 23/03/2014, 06:20

... 4 O 9 Whisker Absorbent and Applications in Heavy Metal Ions Removal Shali Tan 1 , Yujun Zhang 2* , Hongyu Gong 2** 1 School of Environmental Science and Engineering Shandong University, Jinan ... of using PTW to treat industrial waste water containing heavy metal ions is discussed. Key words: Potassium tetratitanate, whisker, heavy metal ion, absorption INTRODUCTION Potassium...

Ngày tải lên: 05/09/2013, 09:38

... last decades. Estimations of heavy metal toxicity and accumulation in heavy metal tolerant plants are necessary in order to apply the phytoremediation for heavy metal removal. However, it has ... incorporate metal speciation and protective effects of competing cations into the prediction of metal bioavailability and toxicity. The main assumption of the BLM is that metal...

Ngày tải lên: 05/09/2013, 10:15

... sufficiently high concentration of heavy metal [1-3]. Currently, heavy metal rich sludge is mainly treated by solidification then disposed/land filled and incineration. In addition, some ... material as color blending (pigment) and raw material in flower brick and cement brick production. 2. Experimental Method 2.1. Heavy metal rich sludge: The heavy metal ric...

Ngày tải lên: 12/02/2014, 17:20

... glucose and hemin chloride (13 lgÆmL )1 ), and further incubated at 30 °C for 24 h. Then, the cells were collected and suspen- ded in 25 mL of 40% potassium hydroxide and 25 mL of methanol and refluxed ... The Authors Journal compilation ª 2006 FEBS 959 Identi cation of b-amyrin and sophoradiol 24-hydroxylase by expressed sequence tag mining and functional expression assay Mas...

Ngày tải lên: 19/02/2014, 07:20

... peripheral part is extensively hydrophilic and contains several structural and functional modules, such as nucleotide binding (N), phosphorylation (P), actuator (A) and heavy metal binding (HMA) domains. During ... Negative difference bands at 1525 and 1347 cm )1 refer to the symmetric and anti-symmetric vibrations of the NO 2 group in cgATP identified previously [25]. For compar...

Ngày tải lên: 07/03/2014, 00:20

... drainage demand many times which is compared with rice land and cultivated land. 5. Discussion and recommenation Obviously, all socio-economic indicators have been indicating land use planning ... drainage demand. In the above analysis shows the rise of amount of drain, and the drainage capacity also increases by the drainage demand for incultivated land which is drained by...

Ngày tải lên: 14/03/2014, 15:20