A sequential batch reactor (SBR) and a membrane bioreactor (MBR) were inoculated with the same sludge from a municipal wastewater treatment plant, supplemented with ammonium, and operated in parallel for 84 days. It was investigated whether the functional stability of the nitrification process corresponded with a static ammonia-oxidizing bacterial (AOB) community. The SBR provided complete nitr...

Wastewaters from fossil fuel refining, pharmaceuticals, and pesticides are the main sources of phenolic compounds. Those with more complex structures are often more toxic than the simple phenol, and yet little is known about the treatment of wastewater containing a mixture of phenolic pollutants. . The present study was aimed at assessing the efficacy of UASB and SBR for the treatment of mixtur...

This work deals with modeling and operation optimization of biological sequential batch reactors (SBR). The SBR is a fill-and-draw biological sludge system for wastewater treatment. In this system, wastewater is added to a single batch reactor, treated to remove undesirable components, and then, discharged. In this paper, a global model of a gas-solid-liquid SBR is presented to investigate and ...

BACKGROUND Solid bio-wastes (or organic residues) are worldwide produced in high amount and increasingly considered bioenergy containers rather than waste products. A complete bioprocess from recalcitrant solid wastes to methane (SW2M) via anaerobic digestion (AD) is believed to be a sustainable way to utilize solid bio-wastes. However, the complex and recalcitrance of these organic solids make...

The activated sludge process is one of the most important parts of conventional wastewater treatment plants. Wastewater is treated biologically in activated sludge basins. Activated sludge can remove soluble contaminants, primarily organics compounds and nitrogen, from the wastewater stream. The activated sludge is a mixture of microorganisms, inorganic and organic compounds aggregated to flocs...

The improvement of rural living standards in developing countries and the continuous upgrading industrial economy have prompted diversification areas residential forms. Thus, an integrated sewage treatment process has gradually become mainstream technology for treatment. Numerous studies reported effects ecological wastewater Meanwhile, relevant technologies, evaluations, operating models yet t...

This study evaluates the performance of a simple sequencing batch reactor (SBR) with conical geometric configuration in terms aerobic granulation and simultaneous removal COD, nitrogen, phosphorous from synthetic wastewater. The was operated for 328 days 3 different phases. Stable granules measuring around 0.9±0.3 mm good settling properties were formed phase III operation. Optimum removals COD...

Received Feb 13, 2017 Revised Apr 18, 2017 Accepted May 2, 2017 Aerobic Granular Sludge (AGS) technology is a promising development in the field of aerobic wastewater treatment system. Aerobic granulation usually happened in sequencing batch reactors (SBRs) system. Most available models for the system are structurally complex with the nonlinearity and uncertainty of the system makes it hard to ...