Landfill leachate may cause environmental problems if it is not properly managed and treated. An appropriate treatment process of landfill leachate often involves a combination of physical, chemical and biological methods to obtain satisfactory results. In this study, coagulation-flocculation was proposed as a pretreatment stage of partially stabilized landfill leachate prior to submerged biolo...

The membrane bioreactor (MBR) has emerged as an efficient compact technology for municipal and industrial wastewater treatment. The major drawback impeding wider application of MBRs is membrane fouling, which significantly reduces membrane performance and lifespan, resulting in a significant increase in maintenance and operating costs. Finding sustainable membrane fouling mitigation strategies ...

Problem statement: Turbid waters, containing colloidal particles, are normally treated by coagulation-flocculation followed by clarification. Ferric chloride and alum, which are the most common types of coagulants in water treatment plants of Iran as well as many other countries, were investigated with the aim of determining their capabilities to reduce turbidity of drinking water. Turbidity wa...

Coagulation can effectively recover substances from wastewater; however, there is a lack of efficient coagulants for simultaneous recovery organic matter, nitrogen, and phosphorus. We prepared composite polysilicate metal (CSM) flocculant by combining Fe3+ Mg2+ ions in polysilicic acid (PSiA). According to the results scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier-transfor...

<p>Growing environmental awareness coupled with stricter regulations has pushed various industries to look for appropriate technologies treat wastewater. Natural coagulants have recently been used as part of water and wastewater due their performance, cost-effectiveness when compared chemical coagulants, they produce less sludge are safer humans. A huge effort also taken find new plant sp...

Abstract Coagulants are essential in purifying raw water for drinking safety consumers. Commonly, aluminium sulphate, a chemical coagulant, is used treatment. However, long-term usage, coagulants can be considered toxic and harmful to the environment due accumulation of this substance pipeline system, which create severe health issues if consumed. The natural plant-based coagulant substitute su...

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...

The dissolved organic matter (DOM) plays significant role in water safety due to not only the natural occurrence but also man-induced pollution. To characterize and predict DOM treatability becomes therefore a very important and hot topic. In this paper, enhanced coagulation by four typical coagulants (FeCl3, Al2(SO4)3, polyaluminum chloride (PAC) and high performance polyaluminum chloride (HPA...

Covalently bound organic silicate aluminum hybrid coagulants were synthesized by employing two silane coupling agents [diethoxydimethylsilane (DEDMS), gamma-aminopropylmethyldiethoxysilane (APDES)] as silicon sources. An additional coagulant was synthesized using anothersilane-tetraethylorthosilicate (TEOS) for comparison. Both the coagulant with DEDMS and that with APDES as the silicon source ...

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...