The micronuclear frequencies were 1.00‰ and 0.5‰ for 1.68％ and 1.28％ dye effluents, 0.53‰ and 0.53‰ for 1.78％ and 15.00％ dyeing wastewater: 0.5‰ and 0.53‰ for 18.20％ and 10.40％ petrochemical effluents;
As the concentration of water inflow was 15mg/L, retention time was 24h and continuous operation, the decolorization rate of the mixed dyestuff wastewater reached 79.5%, decolorization rates of Congo red, crystal violet and methylene blue were 91.6%﹑65.4% and 6.9% respectively.
The mixing dyestuff wastewater generated from the production of vat Red 6B,vat Yellow Grown G,2,6 aminoanthraquinone has been treated by coagulation chemical oxidation biological treatment process with 99.7% of decolorization efficiency,98.8% of COD removal rate and 97.6% of BOD 5 removal efficiency.
Performance of bioferric-submerged membrane bioreactor for dyeing wastewater treatment
A side-by-side comparison study of Bioferric-SMBR and common SMBR dealing with dyeing wastewater was carried out.
Combined treatment of dyeing wastewater by a new sequential bi- cycling biological fluidized bed
By utilizing BRBFB to treat a synthetic dyeing wastewater, 90% of CODCr is removed for a higher-concentration water (CODCr 1 000-1 200 mg/L), and 82% of CODCr is removed for a lower-concentration water (CODCr 400-600 mg/L).
fumigatus XC6 is an efficient strain for the decolorization of reactive textile dyes effluents, and it might be a practical alternative in dyeing wastewater treatment.
Reduction of COD and color of acid and reactive dyestuff wastewater using ozone
At pH of 11, 15 LPM of inlet gas flowrate and 89.3 g/Nm3 of ozone flowrate, the COD of bromamine acid dyestuff wastewater was reduced to 95 mg/L after 90 minutes, and the COD of reactive dyestuff wastewater was reduced to 120 mg/L after 120 minutes.