Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes
Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes
Treatment of Wastewater Containing Reactive Dyes by Coagulation and Electrocoagulation ProcessesM t Mo#f-: Bui Manh Ha10 36BUI MANH HATreatment of Was Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes stewater Containing Reactive Dyes by Coagulation and Electrocoagulation ProcessesÌ& M & Ẵ t /'£ RM fa zK ỐÙ <ẳ-S;ft 11<•ftt-%1(»t # & B 103 4- 729 aABSTRACTThis study evaluated the removal efficiency by coagulation and electrocoagulation (EC) from three synthetic reactive dyeing wastewaters (contain Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes ing SBB. SBR and SRS) under various parameters. In coagulation process, four kinds of coagulant: PAC. ferrous ammonium sulphate, chitosan, and CassiaTreatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes
fistula gum (taken from seed of Cassia fistula waste) was employed in Jar- test experiments to determine the dye removal efficiencies (color and COD) Treatment of Wastewater Containing Reactive Dyes by Coagulation and Electrocoagulation ProcessesM t Mo#f-: Bui Manh Ha10 36BUI MANH HATreatment of Was Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes low mixing phase. In the case of EC, the parameters were pH, sulphate concentration, electrolysis time. IDC and electrical current density.The test results indicated that while coagulation process effect is highly depended on pH (5-11), coagulation dosage and IDC, the EC process mainly affected in n Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes arrower scale of pH (> 9). current density (86.6 A m2). time range (4-9 min). Both of technologies have high removal capacity (decolorization efficienTreatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes
cies reached over 90%). However EC predominated in COD removal (> 70%) compared with coagulation process (> 50%).In the group of coagulants. Cassia fiTreatment of Wastewater Containing Reactive Dyes by Coagulation and Electrocoagulation ProcessesM t Mo#f-: Bui Manh Ha10 36BUI MANH HATreatment of Was Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes cteristic, its waste origin and being effective in alkaline medium, this gum is very potential for using in combination with other coagulant in dye removal process of reactive dyeing wastewater which (usually) has high pH values (> 9).In the case of EC, the main mechanism(s) of dye removal seem(s) t Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes o be aggregation through charge neutralization and/or enmeshment in iron hydroxide precipitates. Furthermore, the experimental results confirmed thatTreatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes
EC could display some pH buffering capacity. The kinetics of EC was very fast (< 10 min) in approaching a low residual dye in the wastewater.-iii-BothTreatment of Wastewater Containing Reactive Dyes by Coagulation and Electrocoagulation ProcessesM t Mo#f-: Bui Manh Ha10 36BUI MANH HATreatment of Was Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes simulate the behavior of the coagulation and EC process.Keywords: Reactive dye. coagulation, electrocoagulation. Cassia Jislufa gum. chitosan, textile wastewater, artificial neural network.■ SBR ' SRS)&*«fiHt^ í&;ỉỉ>£Ẵ t• 4b^ỉ£»>èí£ffl'VíVLiĩ&iíĩ. ' T«ÃWfW»4-Jflh4m&&ttJf-$Jfc)3raíÉíS. »&|"COD ốỊ>iF Treatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes »ít* •pH' «#£«.' i.t-ế-aui' 4êfeỉỀí4;Ấ« ' pH '' tMlịK3 ' ^ié^í4;â« ' Ẵt>'O£ • 4; 4b3i ;■£%;£ ỈK. pH (5-11)'» *4 j*£ < # tì -ẫ- s éO tì MTreatment of wastewater containing reactive dyes by coagulation and electrocoagulation processes
? K SI ÍR pH (> 9)'<>«< (86.6A/m:)tì«aHi(4-9min)O-l .® í tì #• Ế.â*F»*&■& 90%rttì ;COD *1^iặ s «5- 70% • tì$[« X $ Vì- 50% •R # 62.0% ( Ế.&1Ẵ 40.9% (CTreatment of Wastewater Containing Reactive Dyes by Coagulation and Electrocoagulation ProcessesM t Mo#f-: Bui Manh Ha10 36BUI MANH HATreatment of WasTreatment of Wastewater Containing Reactive Dyes by Coagulation and Electrocoagulation ProcessesM t Mo#f-: Bui Manh Ha10 36BUI MANH HATreatment of WasGọi ngay
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