Denitrification

A three-stage submerged MBR was operated under a prolonged SRT condition—more than 800 days—to treat high strength industrial wastewater. Throughout the entire experiment, chemical and biological effects on sludge production and nitrification/denitrification were investigated. The trend of MLSS grow

A lab-scale anaerobic/anoxic/aerobic (A1/A2/O) system with three cycles was developed to purify high-strength coking effluent, 8,000–15,000 mg chemical oxygen demand (COD)/L, characterized by high levels of toxic organics and ammonia, 1200–1700 mg phenol/L and 700–1800 mg ammoniacal-nitrogen/L. Besi

For small settlements sanitation, constructed wetland systems offer a suitable social economic alternative to the classic wastewater treatment plants. In order to study the treatment mechanisms occurring in the soil–plant system, we set up a small-scale pilot wastewater treatment plant composed by a

Discharging the nutrient rich aquaculture effluents into inland water bodies and oceans is becoming a serious concern due to the adverse effect that brings in the form of eutrophication and subsequent damages to those waters. A laboratory scale biological reactor consisting of a denitrifying compart

A flat type membrane bioreactor (MBR) with a pore size of 0.038 μm and having a total surface area of 540 m2 was operated intermittently for over a year in METU campus at Ankara to treat domestic effluents from dormitories and academic village. At the first stage the MBR plant was operated continuou

The results of an experimental study, developed on a membrane bioreactor/membrane contactor pilot plant, aimed at drinking water denitrification are presented and discussed. In the adopted configuration the water, contaminated by nitrates, flows inside the fibres of a membrane unit. Due to the exist

Generally, membrane biofilm have been believed to be minimized during the operation of membrane bioreactor (MBR) for wastewater treatment and reuse. In this study, positive roles of membrane biofilm in the intermittently aerated MBR system were highlighted. During the long-term operation using real

Today more than ever, the protection of health and the respect for the laws of nature are among man’s main preoccupations. One of the main concerns, comes is that of nitrates. However, since about fifteen years in a number of Moroccan regions, as well as in many foreign countries, one sees a continu

Electrodialysis (ED) is an efficient process for the treatment of drinking water with high nitrate concentration. However it achieves only a transfer of pollution by producing concentrated brines. This study demonstrated the feasibility of ED brine denitrification in a membrane bioreactor (MBR). The

A hybrid process combining electrodialysis and a membrane bioreactor was investigated to treat ground waters with excessive nitrate concentrations. Electrodialysis (ED) allowed the nitrate separation producing, on one hand, partially demineralized waters whose ion concentrations were in agreement wi