نتایج جستجو برای: coagulation flocculation

تعداد نتایج: 49818  

Background and Objectives: Boron is widely found in raw materials and wastewater of the tile industry and its removal from aquatic environments is very complex. The aim of this study was to remove boron from wastewater of ceramic tile industry using coagulation and flocculation-adsorption process. Materials and Methods: This was an experimental study. Initially, for the coagulation process, pH...

Journal: :Acta Scientiarum-technology 2022

The objective of this work was to produce and characterize activated carbon from sugarcane bagasse agglomerated with Alumina (Al2O3) apply it in treatment vinasse pretreated by coagulation-flocculation reduce the toxics parameters vinasse. adsorbent characterized textural analysis, XRD, pHZPC, SEM EDS. Adsorption isotherms, adsorption kinetics thermodynamic process were obtained. Langmuir isoth...

2015
H. Alizadeh Golestani

Industrial wastewater contains a lot of pollutants and therefore needs special treatment processes. The treatment process may contain mechanical, biological, chemical, physical and physiochemical such as Coagulation – Flocculation process. The goal of this experimental work was to investigate the effects of coagulationflocculation and dissolved air flotation as a hybrid process of industrial wa...

2017
F. Nyström K. Nordqvist I. Herrmann A. Hedström M. Viklander

This abstract presents a laboratory study of a coagulation/flocculation process on an urban snow melt mixture. Coagulation/flocculation is ubiquitous in water treatment, but has seen little use in the stormwater context. Using a jar-test procedure five different chemicals are evaluated as primary coagulants and their treatment performance on urban snow melt with respect to solids removal and me...

Journal: :نشریه بازیافت آب 0
مسعود طاهریون اصفهان، دانشگاه صنعتی اصفهان، دانشکدة مهندسی عمران علیرضا معماری پور تهران، دانشگاه خوارزمی، دانشکدة فنی مهندسی، گروه مهندسی عمران علی ترابیان تهران، دانشگاه تهران، دانشکدة محیط زیست

in this study, modeling and optimization of coagulation and flocculation processes in cod removal of galvanized wastewater treatment plant of mobarakeh steel complex (msc) were studied. experiments of this study were designed using response surface method which is one of the most efficient methods in experimental design. the variables assessed in this study, are four factors including ph, input...

Journal: :Journal of water process engineering 2021

Microplastics (MPs), sized ~150 μm, have been found in tap water at levels of ~5 particles/L, suggesting that treatment plants are not effectively removing MPs. Therefore, there is an urgent need to evaluate their fate drinking processes. Coagulation-flocculation and sedimentation applied primarily decrease turbidity, MPs contribute turbidity. This study focuses on the removal polystyrene (PS) ...

Journal: :Journal of colloid and interface science 2014
Rui Barbosa Nuno Lapa Helena Lopes Annika Günther Diogo Dias Benilde Mendes

The main aim of this work was to study the removal efficiency of Pb from synthetic and industrial wastewaters by using biomass fly ashes. The biomass fly ashes were produced in a biomass boiler of a pulp and paper industry. Three concentrations of Pb(2+) were tested in the synthetic wastewater (1, 10 and 1000 mg Pb/L). Moreover, two different wastewaters were collected in an industrial wastewat...

2012
Amila Abeynayaka Le Anh Tuan Chettiyappan Visvanathan Hitoshi Yonekawa Yoshimasa Watanabe

Membrane filtration is one of the alternatives suggested for the future drinking water production. Worldwide, the total number of ceramic membrane usage for water treatment is increasing swiftly and this is the first ceramic filtration study which is applied to a surface water treatment in a tropical region. This study was conducted to investigate the removals of natural organic matter and path...

Journal: :Chemosphere 2005
M I Aguilar J Sáez M Lloréns A Soler J F Ortuño V Meseguer A Fuentes

A physicochemical treatment (coagulation-flocculation) was applied to a slaughterhouse wastewater, using anionic polyacrylamide as coagulant aid to improve the settling velocity of the flocs formed with the coagulants used: ferric sulphate, aluminium sulphate and polyaluminium chloride. The optimum speed and stirring time for the flocculation stage were ascertained along with the optimum pH and...

Journal: :Water research 2014
R K L Yap M Whittaker M Diao R M Stuetz B Jefferson V Bulmus W L Peirson A V Nguyen R K Henderson

Dissolved air flotation (DAF), an effective treatment method for clarifying algae/cyanobacteria-laden water, is highly dependent on coagulation-flocculation. Treatment of algae can be problematic due to unpredictable coagulant demand during blooms. To eliminate the need for coagulation-flocculation, the use of commercial polymers or surfactants to alter bubble charge in DAF has shown potential,...

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