Many articles have been published on coagulant dosing in membrane bioreactors, though few have been long-term studies examining the treatment of real wastewater. This study summarises the results of a membrane bioreactor pilot-plant (flat sheet membrane, nominal pore size 0.03 μm) that treated real municipal wastewater for two-years. Both influence of phosphorus precipitation by ferric sulphate...

Moringa oleifera seeds contain about 40% of highly valued oil due to its wide range of applications, from nutritional issues to cosmetics or biodiesel production. The extraction of Moringa oil generates a waste (65%-75% of seeds weight) which contains a water soluble protein able to be used either in drinking water clarification or wastewater treatment. In this paper, the waste of Moringa oleif...

Purification of Hageman factor (HF, factor XII) from human plasma is a tedious procedure and the product is not always in the precursor form. Hojima has described a protein derived from corn kernels that inhibits the enzymatic properties of HF. This inhibitor binds to the precursor form of HF. Rapid purification of HF was achieved by using as the major purification step adsorption of this clott...

Peritoneal leukocytes harvested from rabbits which have received two spaced doses of endotoxin have significantly greater (10-fold) coagulant activity than leukocytes from control rabbits. The coagulant activity accelerates the clotting of normal plasma and activates factor X in the presence of factor VII and calcium and is therefore regarded as tissue factor. A total of 40-80 mg tissue factor ...

Al2 (SO4)3, 18H2O, FeCl3 and Ca (OH)2 were used for the treatment of tannery wastewaters. The influences of pH and coagulant dosages were studied. Conditions were optimised according to the pollutant removal efficiencies, the volume of decanted sludge and the biodegradability index improvement. The results indicate that 6771% of total COD, 76-92% of color and 79-97% of Cr can be removed using t...

Glyphosate, the most widely used herbicide in world, is routinely applied to control weeds both agricultural and urban settings. Glyphosate wastewater that has been treated with Fenton’s reagent a high phosphorus content potential cause environmental pollution. However, concentration means it may be possible recover from glyphosate-rich wastewater. To date there have relatively few studies on r...

in this present study the dissolved air flotation (daf) system was investigated for the treatment of kermanshah oil refinery wastewater. the effect of three parameters on flotation efficiency including of flow rate (outflow from the flotation tank), saturation pressure and coagulant dosage on chemical oxygen demand (cod) removal was examined experimentally. all the experiments were done under a...

Artificial neutral network (ANN) approach has been used in the drinking water treatment process for determining optimal coagulant dosage in the process. In such approach, a significant amount of input variables is typically required. To remedy the constraint, this study investigates the effects of input variables on the output performance of ANN models, using the real time coagulant dosage data...

Averrhoa bilimbi is a plant rich in benefits, one of which as natural coagulant. The aim this research to increase the potential an environmentally friendly coagulant for coagulation rubber clone PB 260. concentrations used were 45%, 55%, 65%, 75% and 85%. characteristics tested dry content (DRC), initial plasticity (Po) Plasticity Retention Index (PRI). Based on results study, optimum concentr...

In response to the finding of chironomid larvae in tap water, South Korea’s water treatment system has stepped up quality monitoring. However, due challenging nature larval behavior, effective elimination remains difficult despite use various purification techniques such as coagulation, sedimentation, filtration, and disinfection. Based on it, aim this study is evaluate effectiveness coagulatio...