Refined Cotton Wastewater (Black Liquor) Treatment Pilotscale Experiment And Engineering Applications

In this paper, a chemical industry company refined cotton production processesrefined cotton water (black liquor) for the study, analysis and research onexperimental refined cotton waste (black liquor), and combined treatment of suchwaste at home and abroad experience and methods, a set of feasible refined cottonwaste (black liquor) pilot program treatment process route. During the course of thetrial, based on the experimental data and the actual situation in the test pilot of thepilot process line program was ongoing verification and revision. After a sustainedand stable operation of the pilot test, the results of a series of pilot data, through dataanalysis, sorting, formed in the test report. According to the test report, carried outdesign engineering applications.This paper uses the refined cotton waste cooking (black liquor) treatment process:Water quality regulationâ†'Microfiltration cleanerâ†'Acid precipitationâ†'Flotationprecipitationâ†'Microelectrolysisâ†'Acid-base neutralizationâ†'Anaerobicâ†'Doublet aerobicâ†'Bleaching. While processing refined cotton waste (black liquor),the introduction of nitrocellulose production of acidic wastewater through by Wasteway, not only the wastewater treatment process to reduce operating costs, whileachieving economic and environmental benefits of unity. Engineering final effluentCODCrin200mg/L or less, color80times, CODCrremoval rate of more than98.4%,color removal rate of more than99.47%, stable, reliable, and can continue to achieve"industrial water weapons emission standards "(Explosives)(GB14470.1-2002)emission standards.It is difficult to solve the domestic refined cotton waste discharge standards oftreatment provided a theoretical basis and engineering experience, and should solvethe technical problems of refined cotton waste water treatment, waste waterprocessing refined cotton has a certain significance.