"dye removal from effluents of textile industries by iso9888 method and membrane technology"
نویسندگان
چکیده
dye removal from effluents of textile industries of iran was investigated through biodegradabilitymethod and membrane technology . basic, reactive,disperse and acidic dyes were selected, based onusage rate in iran. the zahen - welenze method (iso 9888) was applied to study the biodegradabilityof dyes. results showed the final cod and dye removal (%r) as (%61,% 57), (%73, %76), (%25, %14),and (%32, %8) for acidic, basic, reactive and disperse dyes, respectively. also, the admi value ininfluent and effluent wastewater were (4063, 1768), (271, 111), (2359, 2211) and (2073, 966), respectivelyfor 4 types of dyes. four types of selected membranes were: (ppt) nf (mwco= 300da), (pwb) nf(mwco= 600da), (tfc) ro (mwco=50da) and uf (mwco= 20kda). results with membranesfor maximum %r were %93, %76 and > %95, with nf300, nf600 and ro (for all types of dyes), respectively, demonstrating the high removal potential of reverse osmosis membrane.
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عنوان ژورنال:
iranian journal of public healthجلد ۳۰، شماره ۱-۲، صفحات ۷۳-۸۰
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