ink wastewater – acidizing – Fishing ink residue – pH adjustment – coagulation – sedimentation – hydrolytic acidification – contact oxidation – sedimentation – effluent can be discharged to the comprehensive wastewater
ink: ink (printing ink) is an important material for printing. It displays patterns and words on the substrate through printing. Ink includes main components and auxiliary components, which are evenly mixed and rolled repeatedly to form a viscous colloidal fluid. It is composed of binder (resin), pigment, filler, auxiliary and solvent. It is used for printing books and periodicals, packaging and decoration, architectural decoration and electronic circuit boards. With the increase of social demand, the varieties and output of ink are also expanded and increased accordingly.
it depends on the quantity. If the quantity is small, it can be outsourced. It also depends on the generated process, what substances are in it, whether there is a sewage tank, and whether the treated water is reused or directly discharged
treatment of ink waste water first of all the water quality of impurities and emulsified oil demulsification precipitation treatment, first add demulsifier at the pretreatment end, and then adjust pH value, the wastewater is modulated neutral, stir evenly, after adding polyacrylamide to flocculate and precipitate, the water coming out can show the clear effect of the supernatant, and finally can achieve the discharge standard by adding biochemistry.
it is recommended to use Shanmei environmental decolorizer for ink wastewater, which is convenient and simple without too complicated. Add decolorizer directly, adjust pH, and finally add coagulant aid to make it clear and transparent