feasibility of utilizing moving bed biofilm reactor to upgrade and retrofit municipal wastewater treatment plants

نویسندگان

a.h. javid

department of environmental engineering, graduate school of the environment and energy, science and research branch, islamic azad university, tehran, iran a.h. hassani

department of environmental engineering, graduate school of the environment and energy, science and research branch, islamic azad university, tehran, iran b. ghanbari

department of environmental health engineering, graduate school of public health, tehran medical branch, islamic azad university, tehran, iran k. yaghmaeian

department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran

چکیده

in this study, feasibility of upgrading and retrofitting municipal wastewater treatment plantswas investigated at laboratory scale using moving bed biofilm reactor (mbbr) process. for this purpose,an aerobic pilot was operated for nearly one year in different conditions, in which a moving bed carrier with aspecific biofilm surface area of 500 m2/m3 and a filling rate of 60% was utilized. system efficiency in removal of bod5 and cod was examined at different hydraulic retention times (hrts) of 1, 1.5, 2, 2.5, 3 and 4 h. the obtained results indicated high ability of the system to tolerate organic loading and to remain stable at a high food to microorganism (f/m) ratio. the system produced effluents with good quality at low hrts and led to an average bod5 removal efficiency of nearly 88% during the operational period. the organic loading rate (olr) applied to the system had a range of 0.73-3.48 kgbod5/m3.day and 2.43-11.6 gbod5/m2.day, at which the reactor showed a good performance and stability. in general, it was concluded that (mbbr) can be an excellent alternative for upgrading and optimizing municipal wastewater treatment plants

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

feasibility of utilizing moving bed biofilm reactor to upgrade and retrofit municipal wastewater treatment plants

in this study, feasibility of upgrading and retrofitting municipal wastewater treatment plantswas investigated at laboratory scale using moving bed biofilm reactor (mbbr) process. for this purpose,an aerobic pilot was operated for nearly one year in different conditions, in which a moving bed carrier with aspecific biofilm surface area of 500 m2/m3 and a filling rate of 60% was utilized. system...

متن کامل

Tracking particle size distributions in a moving bed biofilm membrane reactor for treatment of municipal wastewater.

A study has been conducted to investigate the effect of loading rates on membrane fouling in a moving bed biofilm membrane reactor process for municipal wastewater treatment, especially analysing the fate of submicron colloidal particles and their influence on membrane fouling. Two operating conditions defined as low and high organic loading rates were tested where the development and fate of t...

متن کامل

Moving Bed Biofilm Reactor Performance in Phenol Removal from Wastewater

Background: Phenolic compounds are found in wastewater of many industries such as pulp and paper, textile, petrochemical, oil refineries, production of phenolic resins, plastics, coal furnace, tannery, rubber reclamation plant, fertilizers, coke, paints, rubber, decolorizer, resins, rubber and phenol- formaldehyde resin industries. This study aimed to evaluate Moving Bed Biofil...

متن کامل

Utilizing algal oxygen production for advanced wastewater treatment in a Moving Bed Biofilm Reactor (MBBR) – the Biologically Aerated Reactor (BAR

A novel wastewater treatment system has been developed, utilizing an oxygen-rich algal liquid to supply oxygen to an aerobic biofilm reactor. Aerobic treatment of wastewater takes place in a Moving Bed Biofilm Reactor, where the aerobic biomass which breaks down organic and nitrogenous pollutants grows as a biofilm on floating carriers. Algae grown in an open raceway pond produce oxygen through...

متن کامل

A survey on the performance of moving bed biofilm reactor and rapid sand filter in wastewater treatment

Moving bed biofilm reactor (MBBR) is a process in which attached growth is utilized for wastewater treatment. This process does not require sludge recycling or backwash. Activated sludge processes can be promoted to an MBBR by adding media to an aeration tank. Rapid sand filter is a physical method for the removal of total suspended solids (TSS) in advanced wastewater treatment. The purpose of ...

متن کامل

The Moving Bed Biofilm Reactor

A new biofilm reactor for wastewater treatment, the moving bed biofilm reactor (MBBR), is discussed. A general description of the reactor is given. Results from investigations of different applications (carbonaceous removal, nitrification and nitrogen removal) when used for municipal wastewater treatment, are discussed. Design values are given and it is demonstrated that use of this reactor res...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
international journal of environmental research

جلد ۷، شماره ۴، صفحات ۹۶۳-۹۷۲

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023