synthesis of potassium ferrate for use in textile wastewater treatment
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abstract
potassium ferrate has been used as a multi-purpose chemical in treatment of wastewaters. with the formula of k2fe04 it has 3 excellent characters for water treatment, so by using it alone, it would be possible to confine all reactivity, it is essential to prepare ferrate at the point of use. in this study, k2fe04 was synthesized, then it has been employed for chlorine gas with an alkaline solution of ferric chloride, then it has been employed for textile wastewater treatment. textile is one of the industries with high significance for water pollution. comparison of results with a conventional coagulant (fec13) has shown that total cod and ss removal were about 27 to 29 and 0.7 to 2 percent more and the sludge volume was 2.5 times less, also, the required dose of k2fe04 for this treatment. another advantage of using ferrate is its ability in reducing bacterial content of wastewater. all the simplex treated by synthesized chemical was well disinfected.
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Journal title:
iranian journal of public healthجلد ۲۸، شماره ۱-۴، صفحات ۱۱-۱۸
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