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The pretreated brown algae Laminaria japonica was used to adsorb and desorb Au2+, Ag+, Cu2+ and Ni2+ ions from electroplating wastewater in this article. The results indicated that the biosorption process of Au2+, Ag+, Cu2+ and Ni2+ ions could be divided into two steps. The first step was physical adsorption and reached equilibrium quickly, in less than 15 min. This adsorption process followed the...
Abstract- Column experiment simulations were carried out to determine potential metal ion migration in order to establish the environmental impact of a manganese mine wasteland and to understand the transport dynamics of heavy metal migration by way of two different soil types (tailings and tailings mud) within the Xiangtan Manganese Mine wasteland. Simulations were conducted at the Research Section...
The removal of heavy metal ions(HMI) contained in the electroplating wastewater by precipitation flotation was studied. Experimental results show that chromium, copper, nickel and other heavy metals can be removed efficiently, and all the water quality indexes were up to the first grade of wastewater discharge standard (GB21900-2008) when the dosage of Na2S (CNa2S:CMe=1.6) and pH7.5-8.5. The percentage...
In the present study we reported the feasibility of extracellular biopolymer(PF-9) produced by Pseudomonas fluorescence C-9 as an alternative biosorbent to remove Ni(II) metallic ions from environmental and industrial wastewater. The ability of PF-9 to remove the Ni(II) ions was investigated by using batch biosorption procedure. The effects such as pH, dosage of biosorbent, Ni(II) initial concentration...
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