Background and purpose: The performance of full-scale moving bed biofilm reactor (MBBR) was evaluated as an alternative for upgrading of Kish Island Mirmohana wastewater treatment plant. In this study activated sludge process upgrade to MBBR process and different operating parameters were compared. Materials and Methods: Effect of upgrading on different parameters such as organic loading rate (...

the effect of organic loading rate (olr) provided by hydraulic retention time (hrt) and influent chemical oxygen demand (codin) on the performance of an up-flow anaerobic sludge fixed film (uasff) bioreactor treating palm oil mill effluent (pome) was studied. anaerobic digestion of pome was modeled and analyzed with two variables i.e. hrt and codin. experiments were conducted based on a general...

An up-flow anaerobic sludge fixed film (UASFF) bioreactor was used to treat the pretreated palm oil mill effluent (POME). In physical pretreatment, POME was pre-settled for 2 h and the supernatant was fed into the reactor. In chemical pretreatment, optimum dosages of cationic and anionic polymers were used. Experiments of pretreated POME digestion were conducted based on a central composite fac...

Purpose: To present a techno-economical study of a possible thermophylic anaerobic biological degradation unit installation in Attica, which will manage 35600ton/y of fresh substrate of the source sorted organic fraction of solid municipal waste (SS-OFSMW). Methods: The anaerobic digestion unit consists of a pre-processing step (screening with hands-cutting) and the main dry anaerobic biologica...

In the present study, the removal of phenol from synthetic wastewater was evaluated in a fixed bed reactor with up flow sludge blanket filtration (FUSBF) in comparison with a typical USBF system. At hydraulic retention time (HRT) of 24 hours and solid retention time (SRT) of 20 day, the effect of initial concentration of phenol (260-1020 mg/L) on phenol and chemical oxygen demand (COD) removal ...

Dairy wastewater is enriched in organic matter (about 45-72 g/l, COD) and also contains biodegradable carbohydrates. A three-stage system, NRBC was fabricated as a bench scale unit for lab experiments, to remove organic carbon from the whey. The fabricated NRBC had several advantages, such as quick start-up, high biomass concentration and was additionally able to handle high organic loading rat...

In a two-phase anaerobic digestion process, enhanced biogas production and organic pollutant removal depend on the stability performance of hydrolytic–acidogenic methanogenic phases. Additionally, phase is rate-limiting step, which calls for further optimization operating parameters. The objective this study was to optimize parameters reactor (HR) in treating slaughterhouse wastewater. experime...

This study investigates the prediction of removal efficiency pharmaceuticals (PhCs), personal care products (PCPs), and steroidal hormones (SHs) based on design operational parameters (depth, area, hydraulic loading rate-HLR, organic rate-OLR, retention time-HRT) constructed wetlands (CWs). A comprehensive statistical analysis was performed by applying principle component analysis, correlation ...

This review compiled and analyzed the operational conditions (dissolved oxygen, feast famine ratio, sequential batch reactor cycle length, organic loading rate (OLR), pH, C/N, temperature) established during culture strategy for mixed microbial cultures (MMC) selection to understand how these variables could affect synthesis of polyhydroxyalkanoates, polyglucose, triacylglycerides, levulinic ac...