Removal of turbidity from synthetic cutting oil wastewater by a strong oxidizing agent

  • سال انتشار: 1391
  • محل انتشار: کارگاه بین المللی و همایش تخصصی نمک زدایی آبهای شور، لب شور و تصفیه پساب
  • کد COI اختصاصی: DESAL01_038
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 2465
دانلود فایل این مقاله

نویسندگان

Saeed Baghipur

Department of Applied Chemistry, Karaj Branch, Islamic Azad University,

Elham Keshmirizadeh

Department of Applied Chemistry, Karaj Branch, Islamic Azad University,

Mahtab Gharibi

Petrochemical Research and Technology Company, National Petrochemical

چکیده

On a purely comparative basis, the physico-chemical and turbidity treatment of cutting oil emulsion was applied to two different mineral oils (A and B). In this study, the results show that Ce(IV) had a strong ability to remove turbidity of cutting oil wastewater, at the same time, Ce(IV) could form a larger surface area of sediment, which could adsorb and flocculate oily species and suspended solids and so on. Therefore, Ce(IV) is a double-effect of water treatment agent. At present, rare earth application in waste water treatment has become more and more widely, according to the fact that the Ce (IV) has the strong oxidation ability under acid conditions; we have studied the application of Ce (IV) in cutting oil waste water treatment originally. Batch experiments were performed to investigate the effect of operational parameters, such as initial pH (pH optimum< 1), type of acid, dose of cerium sulfate (1 g/L), initial cutting oil concentration (100-10000) based on constant contact time (0.5hr), the removal turbidity efficiency reached over 99%. The Ce (IV) was one kind of latent good water treatment chemical reagent. Oxidation process hold great promise to provide alternative for better treatment and protection of environment. It was found that catalytic activity of this catalyst was significantly enhanced under acidic conditions to provide a treating method of spent cutting oil-containing waste water, without sludge and is industrially advantageous. The final turbidity of cutting oil A wastewater reduced to 1.5 NTU which meet discharge standard.

کلیدواژه ها

Turbidity، Cutting oil، Rare earths، Cerium sulfate, Oxidizing agent

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.