The fluorine-containing waste water treatment and environmental protection measures _ _ Luoyang Yu Quan Siping sewage treatment approaches are provided by Luoyang Yu Quan sewage treatment Limited. Luoyang Yu Quan Sewage Treatment Co., Ltd. (www.yuquankj.net) is specialized in "environmental protection equipment, sewage treatment equipment, industrial wastewater treatment equipment, grille decontamination machine" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Chang Chih-feng. Alkalinity control sewage treatment: nitrobacteria normal growth and reproduction of the pH should be controlled between 6.5 to 8.0 sewage treatment methods, biological denitrification generate a lot of bases, and the nitrification process is in need of a base, so often in the process of nitrification and denitrification Before the reaction, for a typical urban sewage, alkalinity is about 300mg / L (as CaCO3), and alkali nitrification process consumes less than 200mg / L, so for urban sewage, when the use of biological nitrogen removal process, not need to add a source of alkalinity. pH: the role of bacteria can not be separated due to metabolic enzyme activity fluorinated sewage treatment methods, generally considered aerobic reaction stage should be controlled at a pH between 6.5 to 8.0, anaerobic stage suitable pH range of 7.5 between ~ 9.2, and the pH of the sewage is generally between 6.0 to 9.0, so the pH value of the project appropriate. Above picture is for reference only, please consult our detailed models, more models, please visit our official website or call us to understand the composition of the sewage treatment process and the maintenance of a reflux pump: Single-stage centrifugal pumps, including sewage treatment pump, pump cover, with motor output shaft, the shaft installed in the pump body, bearing housings, impellers, mechanical seal and mechanical seal gland, characterized in that it comprises setting is located between the motor output shaft and shaft coupling of clip-on , as well as the installation of sewage treatment in the bearing housing to auxiliary support shaft guide bearings. Sewage treatment clamp couplings respectively motor output shaft and shaft rigid connection between the motor output shaft and shaft leaving facilitate mechanical seals and gland of assembly and disassembly of spatial distance. When the repair or replacement of mechanical seals, without removing the motor and pump cover. Sewage attention when using a single-stage centrifugal pump, to avoid shaft wear, at the site of the shaft through the packing chamber is equipped with leather sleeves protect sewage treatment methods, quasi O-ring between the sleeve and the shaft to prevent mating surfaces along intake or leaking. Sewage single-stage centrifugal pump drive is through lengthened flexible coupling with the motor connected, the direction of rotation of the pump papermaking wastewater treatment approaches, from the drive end, the rotation is clockwise. Above picture is for reference only, please consult our detailed models, more models, please visit our official website or call us for.