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Organic zeolite (CTAB-Z) was modified with cationic surfactant-cetyltrimethylammonium bromide (CTAB) in this study under the following conditions: CTAB concentration 1.0% (wt%), modification temperature 25°C, modification time two hours and used to remove SO42- from water and wastewater as adsorbent. Some factors which influence the removal ratio of SO42- from water sample such as mesh size of CTAB-Z,...
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 Pb(II) metallic ions from environmental and industrial wastewater.The ability of PF-9 to remove the metallic ions was investigated by using batch biosorption procedure. The effects such as, pH, biosorbent dosage, sorbate concentrations...
SnCl4-5H2O, Sb2O3, and Gd(NO3)3 were used as the precursors to prepare the film of rare earth Gd doping SnO2/Sb coating anode by coprecipitation method. The phenolic wasterwater was treated by the Gd doping SnO2/Sb coating anode. The factors affecting the degradation rate of phenol were examined, such as the electrolyte concentration, current density, solution pH , solution temperature and doping...
Nitrobenzene extraction enhanced by salting-out effect was employed to recover aniline from wastewater at 25°C. The batchwise experiments were conducted to elucidate the influence of various operating variables on the extracting performance, including acidity of wastewater, initial aniline concentration, ratios of solvent versus wastewater, extraction stages, concentrations and species of inorganic...
Water pollution in rural areas or small cities has been a key environmental problem in China. Limited by underdeveloped economy and poor technical capacity, cost- effective and easily operable treatment technologies are highly needed at present, especially for China's western small mountain cities and/or rural areas. An Anaerobic Sequencing Batch Biofilm Reactor (ASBBR) was developed and a bench-scale...
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