"dye removal from effluents of textile industries by iso9888 method and membrane technology"

نویسندگان

m gholami

s nasseri

mr alizadeh fard

a mesdaghinia

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 health

جلد ۳۰، شماره ۱-۲، صفحات ۷۳-۸۰

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