Certified Xiamen Fu students dyeing wastewater dyeing wastewater treatment equipment

Dyeing wastewater dyeing wastewater generated mainly from the dyeing and printing steps, including desizing, scouring, bleaching, mercerizing, dyeing, printing and finishing. Features dyeing wastewater dyeing wastewater emissions from large industrial waste, waste water containing mainly pulp, dyes, surfactants, pH, etc., is characterized by high concentrations of organic matter, complex composition, color depth and varied, PH changes, water Big changes in water quality. Because of different manufacturers process wastewater quality of production are not the same. Therefore, according to the different production processes of dyeing wastewater can be broken down as follows: wastewater, dyeing wastewater, pulp dyeing wastewater, printing wastewater. Dyeing Waste Water with high concentrations of which, deep color, printing wastewater COD is not high, but high color, these two intractable waste water. Rich students Xingtan dyeing centralized wastewater treatment project of dyeing wastewater biological treatment of traditional aerobic and anaerobic biological treatment can not meet the needs of the printing industry in recent years, we have developed two main processes: anaerobic an aerobic one Biochar contact processes aerobic and anaerobic a panning process. Anaerobic an aerobic biological carbon a Contact: For CODCr 800 a 1 000 mg / l of wastewater, the use of the treatment process, the treatment effect can achieve the national emission standards, and then a little further treatment can also reuse system sludge tends to balance itself. Currently there are already a number of production plants using this process, the longest run of more than five years, the treatment effect is stable, but never efflux sludge, did not find excessive growth of anaerobic sludge tanks. Anaerobic an aerobic biological turntable: the process of anaerobic and aerobic sludge separated from each reflux device, sludge entire system all the oxygen back into the narrow biological turntable. The process of COD, chroma removal rate reached 70%. Appropriate flocculant dosing trace measured CODCr, color removal can be increased by 15% to 20%. Guangzhou Fu students environmental Xingtan dyeing centralized wastewater treatment works (3600m3 / d):