Large And Medium-sized Printing And Dyeing Wastewater Treatment Engineering Process Design

This design is the management of large and medium-sized dye factory in wastewater treatment engineering process design. Along with the development of the dyeing and printing industry, more and more waste water be emissions, serious harm to the environment pollution and human body health and life safety. Therefore, the printing and dyeing wastewater treatment has become the urgent matter. Through consulting a large number of documents, understand the characteristics of printing and dyeing wastewater, printing and dyeing wastewater has water volume, the organic matter content high, high chroma, contain PVA difficult to biodegradation of organic matter, etc.This design USES the anaerobic hydrolysis acidification+biological contact oxidation process+biological carbon pool method and treatment of printing and dyeing wastewater in anaerobic method, hydrolysis acidification-sbr-contact oxidation method can very quickly and very good improve wastewater biochemical sex can be, so this before the design of the hydrolysis acidification pool do pretreatment, then through biological contact oxidation ponds, this design biological contact oxidation pool of chosen packing for cellular packing:it has a certain specific surface area, can be in uniform distribution of structures, the bubbles have full cutting ability, and have good hang membrane to take off the membrane effect, the service life is long, etc.The printing and dyeing wastewater is another significant characteristics of high chroma, so this design USES the biological carbon the decoloring treatment pool, the use of the absorbent for active carbon, active carbon absorption method is to use the porous material make waste water of activated carbon a variety of material or adsorption and remove carbon surface in. This design is outstanding features:(1) standards in the premise of a simple design process, reduce the floor and reduce the cost.(2) technology is advanced, the operation process of the operation simple and convenient.(3) after being treated wastewater discharge can be used for irrigation farmland, so very good use of water, is of great significance. This design of sludge treatment also got more mature theoretical guidance, sludge dewatering concentrated final sinotrans disposal. After the above process and unit process, printing and dyeing wastewater and can be discharged...