White carbon black wastewater treatment, magnetic flocculation and sedimentation equipment manufacturer, must source environmental protection. The treatment of printing and dyeing wastewater needs to know that it is mainly composed of pigment and coagulation, and decolorization is also the main treatment condition. Dyeing decolorization is different from what we usually call clothing decolorization. Bleaching powder is not a good decolorization method for white carbon black wastewater treatment. Decolorization is carried out in wastewater by physical methods, and activated carbon is widely used as adsorbent. Activated carbon is different from chemical bleach and decolorizer. White carbon black wastewater treatment, it is the best dye decolorizer at present, because it does not destroy the dye structure while decolorizing. However, the pH of printing and dyeing wastewater has a great influence on its treatment effect. Its adsorption and decolorization effect on acid dyes and sulfide dyes is far weaker than that of basic dyes and direct dye wastewater.
Analysis on magnetic separation technology of white carbon black wastewater treatment manufacturers: it is to use strong magnetic force to salvage and separate the conductive magnetic flocs in wastewater to achieve the purpose of water purification. The white carbon black wastewater treatment + micro magnetic flocculation + super magnetic separation technology and magnetic catalytic activated sludge technology of Biyuan environmental protection company have been applied in municipal wastewater, industrial wastewater and oilfield wastewater since 2006. Biyuan ring Super magnetic separation technology is to use permanent magnetic disk to filter and absorb magnetic suspended solids to achieve the purpose of solid-liquid separation. The whole time of coagulation, flocculation and solid-liquid separation is about 3 minutes. After adding magnetic seeds, coagulation and flocculation, the flow rate of sewage through the super magnetic separation equipment can reach 300m / H ~ 1000m / h.
Sludge volume index (SVI), which is simply called sludge index, is used to treat white carbon black wastewater. It refers to the volume occupied by the precipitated sludge formed by 1g dry sludge after the mixture at the outlet of the aeration tank is sedimentated for 30min, in ml. SVI is better than SV to reflect the sedimentation performance of sludge, and its value is too low, which indicates that there are many inorganic components in activated sludge, and the sludge particles are small and dense. The treatment of white carbon black wastewater is too high, which indicates that the sludge settling performance is not good. SVI value of domestic sewage treatment is between 50 and 150. SV is generally controlled between 20 and 30 for domestic sewage treatment.
White carbon black wastewater treatment plant said that the water consumption of printing and dyeing industry is large, usually 100-200t per 1t textile printing and dyeing processing, 80-90 of which is discharged as printing and dyeing wastewater. The common treatment methods are recycling and harmless treatment. Recycling: (1) the wastewater can be recycled according to the characteristics of water quality, such as the separation of bleaching and scouring wastewater and dyeing and printing wastewater, the former can be used for convection washing, one water for multi-purpose, and reduce emissions. (2) The alkali liquor is usually recovered by evaporation, for example, the amount of alkali liquor is large, the treatment of white carbon black wastewater can be recovered by three effect evaporation, and the amount of alkali liquor is small, which can be recovered by film evaporation. (3) Recovery of dyestuff. Rushin dyestuff can be acidified into cryptobaric acid, which is colloidal particle. It is suspended in the residual liquid and recycled after sedimentation and filtration.
With the development of pharmaceutical industry, pharmaceutical wastewater has gradually become one of the important sources of pollution. The organic wastewater produced in the pharmaceutical process is the main source of pollution. Although the output value of pharmaceutical industry only accounts for 1.7 of the total industrial output value of the country, its sewage discharge accounts for 2% of the national sewage discharge. White carbon black wastewater treatment, but the pharmaceutical industry wastewater mainly includes antibiotic production wastewater, synthetic medicine production wastewater, Chinese patent medicine production wastewater, washing water and washing water in the production process of various preparations. The wastewater is characterized by complex composition, high organic content, high toxicity, deep Se and high salt content, especially poor biochemical property, and intermittent discharge, which is difficult to treat industrial wastewater. With the development of China's pharmaceutical industry, pharmaceutical wastewater has gradually become one of the important sources of pollution. How to deal with this kind of wastewater is a problem of environmental protection.