The removal performance of total poly phenols and orthodiphenols (o-diphenols) content in olive mill waste (OMW) was investigated with a three stages cross flow laboratory scale rotating biological contactor (RBC) in the present study. Due to high COD and other pollutant in the original OMW, physico-chemical treatment was effected for COD and other pollutant reduction prior to biological tr...

the removal performance of total poly phenols and orthodiphenols (o-diphenols) content in olive mill waste (omw) was investigated with a three stages cross flow laboratory scale rotating biological contactor (rbc) in the present study. due to high cod and other pollutant in the original omw, physico-chemical treatment was effected for cod and other pollutant reduction prior to biological treatm...

most of the water treatment plants in iran discharge their sludge to the environment whithout consideration of possible side effects. since this kind of sludge is generally considered pollutant, the sludge treatment of water industry seems to be an essential task. obviously theweight and volume of solids produced during the coagulation process are much more than other wastes of water treatment ...

The use of aluminum sulphate in clarifying raw waters raises many concerns about its impact on human health. Thus, the present study was initiated to compare effects Moringa oleifera and besides evaluating association between M. or with Opuntia ficus-indica syntofloc for water treatment. essays were carried Jar Test using 352.80 Nephelometric Turbidity Units (NTU). monitoring different physico-...

Coagulation is presented as an efficient alternative to reduce the silica content in 14 effluents from recovered-paper mills that are intended to be recycled by a final reverse15 osmosis (RO) step. Coagulation pretreatment by several polyaluminum chlorides 16 (PACls) or FeCl3 was optimized prior to the RO process. PACls with low alumina 17 content and high basicity achieved almost a 100% remova...

High silica content of de-inked paper mill effluents is limiting their regeneration and reuse after membrane treatments such as reverse osmosis (RO). Silica removal during softening processes is a common treatment; however, the effluent from the paper mill studied has a low hardness content, which makes the addition of magnesium compounds necessary to increase silica removal. Two soluble magnes...

The effect of pH, agitation speed and coagulant dosage on the coagulation performance of aluminium sulfate with respect to the treatment of Medjerda water was investigated in this paper. The measurement of residual aluminium speciation was also conducted. The evaluation of treatment efficiency of the optimization of coagulation process while was determined by measuring the reduction of turbidit...

Introduction: The objective of this study was to investigate wastewater quality and the efficiency of removal of wastewater contaminants produced by a tile factory by using ferric chloride, ferrous sulfate, ferric sulfate, aluminum sulfate (alum) and poly-aluminum chloride (PAC) coagulants. Materials and Methods: This is an applied study. A composite sample was taken of the wastewater producti...

We assessed the bioflocculant production potentials of a consortium of two marine bacterial species belonging to the Oceanobacillus and Halobacillus genera, isolated from sediment samples of Algoa Bay in the Eastern Cape Province of South Africa. Cell free culture broth of the consortium had a flocculating activity of 98.3%, which is higher than those of pure cultures of the individual species....

Atrial Fibrillation (AF) is the most common dysrhythmia seen in primary care. Thromboembolic stroke remains one of the most feared complications of this rhythm disturbance. Five landmark trials have demonstrated the efficacy of warfarin and aspirin in reducing this risk. Warfarin use is known to be labor intensive for patients and concerns regarding multiple drug interactions and bleed risk hav...