Achieving complete nitrification below the washout SRT with hybrid membrane aerated biofilm reactor (MABR) treating municipal wastewater
نویسندگان
چکیده
This study analyzed the performances of a hybrid membrane aerated biofilm reactor (MABR) pilot plant in terms nutrients removal attached growth and suspended biomass comparison with conventional activated sludge (CAS) system at different retention time (SRT) (20−3) days. Overall, MABR showed better than CAS TSS (86% vs 79%), COD (89% 85%) total nitrogen (80% 65%). The minimum SRT for achieving complete nitrification was close to 3 days, corresponding aerobic compartment 1.9 whereas it equal 8 days (aerobic 4.8 days). Nitrification rate on average 0.40 gNH 4 -N h −1 (2.40 m −2 d ). Its contribution overall 25–30% average, although increased when decreased. Particle size distribution microscopic analyses particles detached from MABR. seeding effect allowed sustaining suspend very low SRT. observed slightly decreased 3.42 mgNH gVSS 2.87 20 collapsed 2.33 0.47 , because nitrifying washout. Moreover, detachment involved positive settling properties biomass. • A fed real wastewater monitored 304 High efficiency obtained 1.8 Seeding enabled high below washout CAS. Biofilm performed stable 2.40 regardless improved
منابع مشابه
a new membrane - aerated biofilm reactor for low energy wastewater treatment : pilot results
A new hybrid membrane-aerated biofilm reactor (MABR) technology that enables energy-neutral treatment of municipal wastewater is introduced. The process, which removes nitrogen using conventional nitrificationdenitrification, was demonstrated at pilot-scale, treating primary effluent. The new MABR membrane product can operate in a high mixed liquor suspended solids (MLSS) environment, making it...
متن کاملDynamic Performance of UASB Reactor Treating Municipal Wastewater
The simultaneous dynamic equations for substrate and biomass mass were used to assess the UASB reactor performance of municipal wastewater. The dynamic model equations were solved by using a m.file in MATLAB2011a command window and dynamic equations for substrate and biomass. The objectives of this paper are (1) To develop a simple CSTR model for simulation of UASB reactors performance assuming...
متن کاملTracking 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 کاملA Hybrid Membrane-Biofilm Process for Concurrent Nitrification and Denitrification of Wastewater
متن کامل
Achieving Sustainable Agriculture with Treated Municipal Wastewater
A pilot field study was conducted at the Jagjeetpur Municipal Sewage treatment plant situated in the Haridwar town in Uttarakhand state, India. The objectives of the present study were to study the effect of treated wastewater on the production of various paddy varieties (Sharbati, PR-114, PB-1, Menaka, PB1121 and PB 1509) and the emission of GHG gases (CO2, CH4 and N2O) as compared to the same...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of environmental chemical engineering
سال: 2022
ISSN: ['2213-2929', '2213-3437']
DOI: https://doi.org/10.1016/j.jece.2021.106983